Re: Help with map python 2
You could do what mathematicians do when they deal with alternating signs: they raise -1 to the power of the index to get an appropriate multiplier. [ n * (-1) ** n for n in range(10) ] [0, -1, 2, -3, 4, -5, 6, -7, 8, -9] Or you could do here what you attempt to do with map below. See below. You are trying to use a binary expression. There are no binary expressions. Add an else branch to make it ternary: lambda x : x if x % 2 == 0 else -x But never mind the number of branches, the serious point is that you didn't specify a value for when the condition is not true. It doesn't make sense without that. There's nothing wrong with a list comprehension, or the corresponding generator expression if you want a generator. It's fine. Map's fine. Thanks Jussi I really like the multiplier solution. -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with map python 2
In py2, map produces a list already. In any case, above is syntax error without else clause. map(lambda x: x * -1 if x%2 else x, series) If you do not have a function already, a list comp is better. [(-1*k if k%2 else k) for k in range(2, N)] Change [] to () and you have a generator expression. Thanks Terry [(-1*k if k%2 else k) for k in range(2, N)] is really short and I think pythonic being a list comprehension and works in py2 and py3. Sayth -- https://mail.python.org/mailman/listinfo/python-list
If you were starting a project with XML datasource using python
Hi I need some advice on managing data in the form of xml. I will have to repeatedly import a small xml file but with many complex attributes. If I want to retain data integrity and keep the import process simple and querying from the stored source simple what are my best options? There are several options for converting XML into objects such as: http://lxml.de/objectify.html https://pypi.python.org/pypi/pyxml2obj/ http://eulxml.readthedocs.org/en/latest/xmlmap.html I could push this as an embedded object into mongo and search from there. Could ignore XML by just converting to json with something like xml2json and pushing to many databases from there. MySQL, Mongodb, couchdb and existdb are all viable options. Existdb is directly an XML db so I could directly store from there and use the REST API to access http://exist-db.org/exist/apps/doc/devguide_rest.xml somewhat bamboozled by the range of options and no clear obvious solution. If you were starting a project, it relied on XML as its datasource what would you use and why? And have you used it or just speculating? Thank you for your time Sayth -- https://mail.python.org/mailman/listinfo/python-list
Re: If you were starting a project with XML datasource using python
If you were starting a project, it relied on XML as its datasource what would you use and why? And have you used it or just speculating? If I were starting a project, I'd argue furiously that XML is NOT something that should be used for dynamic data storage (the original GRAMPS not withstanding -- I see it now uses BSDdb). It may be a useful representation for transferring/transforming data, but not for persistance/updates. If used for data transfer, the schema should be well thought out to facilitate updates to the long-term storage format. So you would convert it to json so it can then be stored? Note I don't control the XML at all that is a separate organisation I just have to deal with it? Sayth -- https://mail.python.org/mailman/listinfo/python-list
Help with map python 2
In repsonse to this question: Write a program that prints the first 100 members of the sequence 2, -3, 4, -5, 6, -7, 8. This is my solution it works but ugly. series = range(2,100) # answer = [(x,(y* -1)) for x, y in series[::2]] # print(answer) answer = [] for item in series: if item % 2 != 0: answer.append(item * -1) else: answer.append(item) print(answer) I know I should be better off doing this with map but cannot get it to work. I understand also that map returns a generator so this solution should only working in python2(correct me please if I am wrong). In [6]: map? Type: builtin_function_or_method String Form:built-in function map Namespace: Python builtin Docstring: map(function, sequence[, sequence, ...]) - list Just getting something wrong list(map((lambda x: x * -1 if (x%2 != 0)), series)) -- https://mail.python.org/mailman/listinfo/python-list
Engaging, powerful - video inspriration/learning - Your best selections
Not fans of videos hey(well python videos anyway) bugger. Sayth. -- https://mail.python.org/mailman/listinfo/python-list
Engaging, powerful - video inspriration/learning - Your best selections
Morning Have you seen any python videos that were part of a series or that were from a conference that you found engaging and made a point click or solidify a concept or drive you to action to create something you wanted. That took an advanced topic or concept and made it clear as day to you. I have watched some Scipy conf videos which I really appreciated though some of the subject matter was over my technical level. Jessica McKellar did a great talk on the future of python. http://pyvideo.org/video/2375/the-future-of-python-a-choose-your-own-adventur Looking forward to see what videos engaged and drove your passion and increased your skills. Live engaged sayth -- https://mail.python.org/mailman/listinfo/python-list
Re: Leo 5.0 alpha 2 released
On Saturday, 8 November 2014 23:26:20 UTC+11, edre...@gmail.com wrote: Leo 5.0a2 is now available at: http://sourceforge.net/projects/leo/files/Leo/ Leo is a PIM, an IDE and an outliner. Video tutorials: http://leoeditor.com/screencasts.html Text tutorials: http://leoeditor.com/tutorial.html The highlights of Leo 5.0 -- * Better compatibility with vim, Emacs, pylint and PyQt: - Optional native emulation of vim commands. - Full support for Emacs org-mode outlines. - Better support for pylint. - Support for both PyQt4 and PyQt5. * Better handling of nodes containing large text: - Idle time syntax coloring eliminates delay. - Optional delayed loading of large text. * Power features: - Leo available via github repository. - File name completion. - Cloned nodes expand and contract independently. - @data nodes can be composed from descendant nodes. - No need to change Leo's main style sheet: it can be customized with @color and @font settings. - @persistence nodes save data in @auto trees. - A pluggable architecture for @auto nodes. - The style-reload command changes Leo's appearance instantly. * Important new plugins for tagging, display and node evaluation. * For beginners: - Leo's default workbook files contains Leo's quickstart guide. * Hundreds of new/improved features and bug fixes. Links: -- Leo: http://leoeditor.com Docs: http://leoeditor.com/leo_toc.html Tutorials: http://leoeditor.com/tutorial.html Videos:http://leoeditor.com/screencasts.html Forum: http://groups.google.com/group/leo-editor Download: http://sourceforge.net/projects/leo/files/ Github:https://github.com/leo-editor/leo-editor Quotes:http://leoeditor.com/testimonials.html I tried to learn that is understand how Leo benefited me. There must be a click and aha moment with this editor, I never made it there. Having said that i got proficient with vim but not quite with that either. I use brackets currently. Have a great day Sayth -- https://mail.python.org/mailman/listinfo/python-list
Question about PANDAS
On Windows my advice would be to use the anaconda installer. Linux pip will work flawlessly. If you install anaconda full then you will have pandas as well as an ipython launcher installed. Sayth -- https://mail.python.org/mailman/listinfo/python-list
Re: ruby instance variable in python
The end result of a confusing sentence with no context is that I have no idea what you are trying to say. Could you try explaining again please? Steven No problem my reply from phone at work a little confusing. So trying to determine what this does. def ins_var @ins_var ||= nil end In particular I was guessing at this. @ins_var ||= nil Which I have now found on Rubyinside http://www.rubyinside.com/21-ruby-tricks-902.html From there 7 - Cut down on local variable definitions Instead of defining a local variable with some initial content (often just an empty hash or array), you can instead define it on the go so you can perform operations on it at the same time: (z ||= []) 'test' 2009 Update: This is pretty rancid, to be honest. I've changed my mind; you shouldn't be doing this :) So now that I know this I am still further lost to the point of the initially posted code so my kubuntu has ruby so I have run it, and honestly I need further definition on what that code was trying to acheive. sayth@sayth-TravelMate-5740G:~/scripts$ ruby --version ruby 1.9.3p484 (2013-11-22 revision 43786) [x86_64-linux] sayth@sayth-TravelMate-5740G:~/scripts$ irb irb(main):001:0 (z ||= []) 'test' = [test] irb(main):002:0 @ins_var ||= nil = nil irb(main):003:0 def ins_var irb(main):004:1 @ins_var ||= nil irb(main):005:1 end = nil irb(main):006:0 def m irb(main):007:1 @ins_var = val irb(main):008:1 end = nil irb(main):009:0 def m2 irb(main):010:1 ins_var #= val irb(main):011:1 end = nil irb(main):012:0 m = val irb(main):013:0 m2 = val Sayth -- https://mail.python.org/mailman/listinfo/python-list
Re: ruby instance variable in python
On Monday, 6 October 2014 21:07:24 UTC+11, roro codeath wrote: in ruby: module M def ins_var @ins_var ||= nil end def m @ins_var = 'val' end def m2 m ins_var # = 'val' end end in py: # m.py # how to def ins_var def m: # how to set ins_var def m2: m() # how to get ins var I took || to be a ternary. So I assumed your code just sets ins_var to nil and then is called in module m and supplied a val. Could be wrong. if ins_var is None: ins_var = 'val' -- https://mail.python.org/mailman/listinfo/python-list
Re: ruby instance variable in python
I thought that it was a shortcut in ruby to negate the other option of providing another default . I don't greatly know ruby but took a guess after reading examples here https://blog.neowork.com/ruby-shortcuts -- https://mail.python.org/mailman/listinfo/python-list
Re: fixing an horrific formatted csv file.
On Friday, 4 July 2014 14:12:15 UTC+10, flebber wrote:
I have taken the code and gone a little further, but I need to be able to
protect myself against commas and single quotes in names.
How is it the best to do this?
so in my file I had on line 44 this trainer name.
Michael, Wayne John Hawkes
and in line 95 this horse name.
Inz'n'out
this throws of my capturing correct item 9. How do I protect against this?
Here is current code.
import re
from sys import argv
SCRIPT, FILENAME = argv
def out_file_name(file_name):
take an input file and keep the name with appended _clean
file_parts = file_name.split(.,)
output_file = file_parts[0] + '_clean.' + file_parts[1]
return output_file
def race_table(text_file):
utility to reorganise poorly made csv entry
input_table = [[item.strip(' ') for item in record.split(',')]
for record in text_file.splitlines()]
# At this point look at input_table to find the record indices
output_table = []
for record in input_table:
if record[0] == 'Meeting':
meeting = record[3]
elif record[0] == 'Race':
date = record[13]
race = record[1]
elif record[0] == 'Horse':
number = record[1]
name = record[2]
results = record[9]
res_split = re.split('[- ]', results)
starts = res_split[0]
wins = res_split[1]
seconds = res_split[2]
thirds = res_split[3]
prizemoney = res_split[4]
trainer = record[4]
location = record[5]
print(name, wins, seconds)
output_table.append((meeting, date, race, number, name,
starts, wins, seconds, thirds, prizemoney,
trainer, location))
return output_table
MY_FILE = out_file_name(FILENAME)
# with open(FILENAME, 'r') as f_in, open(MY_FILE, 'w') as f_out:
# for line in race_table(f_in.readline()):
# new_row = line
with open(FILENAME, 'r') as f_in, open(MY_FILE, 'w') as f_out:
CONTENT = f_in.read()
# print(content)
FILE_CONTENTS = race_table(CONTENT)
# print new_name
f_out.write(str(FILE_CONTENTS))
if __name__ == '__main__':
pass
So I found this on stack overflow
In [2]: import string
In [3]: identity = string.maketrans(, )
In [4]: x = ['+5556', '-1539', '-99', '+1500']
In [5]: x = [s.translate(identity, +-) for s in x]
In [6]: x
Out[6]: ['5556', '1539', '99', '1500']
but it fails in my file, due to I believe mine being a list of list. Is there
an easy way to iterate the sublists without flattening?
Current code.
input_table = [[item.strip(' ') for item in record.split(',')]
for record in text_file.splitlines()]
# At this point look at input_table to find the record indices
identity = string.maketrans(, )
print(input_table)
input_table = [s.translate(identity, ,') for s
in input_table]
Sayth
--
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Re: fixing an horrific formatted csv file.
On Friday, 4 July 2014 16:19:09 UTC+10, Gregory Ewing wrote:
flebber wrote:
so in my file I had on line 44 this trainer name.
Michael, Wayne John Hawkes
and in line 95 this horse name. Inz'n'out
this throws of my capturing correct item 9. How do I protect against this?
Use python's csv module to read the file. Don't try to
do it yourself; the rules for handling embedded commas
and quotes in csv are quite complicated. As long as
the file is a well-formed csv file, the csv module
should parse fields like that correctly.
--
Greg
True Greg worked easier
def race_table(text_file):
utility to reorganise poorly made csv entry
# input_table = [[item.strip(' ') for item in record.split(',')]
#for record in text_file.splitlines()]
# At this point look at input_table to find the record indices
# identity = string.maketrans(, )
# print(input_table)
# input_table = [s.translate(identity, ,') for s
#in input_table]
output_table = []
for record in text_file:
if record[0] == 'Meeting':
meeting = record[3]
elif record[0] == 'Race':
date = record[13]
race = record[1]
elif record[0] == 'Horse':
number = record[1]
name = record[2]
results = record[9]
res_split = re.split('[- ]', results)
starts = res_split[0]
wins = res_split[1]
seconds = res_split[2]
thirds = res_split[3]
try:
prizemoney = res_split[4]
finally:
prizemoney = 0
trainer = record[4]
location = record[5]
print(name, wins, seconds)
output_table.append((meeting, date, race, number, name,
starts, wins, seconds, thirds, prizemoney,
trainer, location))
return output_table
MY_FILE = out_file_name(FILENAME)
# with open(FILENAME, 'r') as f_in, open(MY_FILE, 'w') as f_out:
# for line in race_table(f_in.readline()):
# new_row = line
with open(FILENAME, 'r') as f_in, open(MY_FILE, 'w') as f_out:
CONTENT = csv.reader(f_in)
# print(content)
FILE_CONTENTS = race_table(CONTENT)
# print new_name
f_out.write(str(FILE_CONTENTS))
if __name__ == '__main__':
pass
Sayth
--
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Re: fixing an horrific formatted csv file.
I have taken the code and gone a little further, but I need to be able to
protect myself against commas and single quotes in names.
How is it the best to do this?
so in my file I had on line 44 this trainer name.
Michael, Wayne John Hawkes
and in line 95 this horse name.
Inz'n'out
this throws of my capturing correct item 9. How do I protect against this?
Here is current code.
import re
from sys import argv
SCRIPT, FILENAME = argv
def out_file_name(file_name):
take an input file and keep the name with appended _clean
file_parts = file_name.split(.,)
output_file = file_parts[0] + '_clean.' + file_parts[1]
return output_file
def race_table(text_file):
utility to reorganise poorly made csv entry
input_table = [[item.strip(' ') for item in record.split(',')]
for record in text_file.splitlines()]
# At this point look at input_table to find the record indices
output_table = []
for record in input_table:
if record[0] == 'Meeting':
meeting = record[3]
elif record[0] == 'Race':
date = record[13]
race = record[1]
elif record[0] == 'Horse':
number = record[1]
name = record[2]
results = record[9]
res_split = re.split('[- ]', results)
starts = res_split[0]
wins = res_split[1]
seconds = res_split[2]
thirds = res_split[3]
prizemoney = res_split[4]
trainer = record[4]
location = record[5]
print(name, wins, seconds)
output_table.append((meeting, date, race, number, name,
starts, wins, seconds, thirds, prizemoney,
trainer, location))
return output_table
MY_FILE = out_file_name(FILENAME)
# with open(FILENAME, 'r') as f_in, open(MY_FILE, 'w') as f_out:
# for line in race_table(f_in.readline()):
# new_row = line
with open(FILENAME, 'r') as f_in, open(MY_FILE, 'w') as f_out:
CONTENT = f_in.read()
# print(content)
FILE_CONTENTS = race_table(CONTENT)
# print new_name
f_out.write(str(FILE_CONTENTS))
if __name__ == '__main__':
pass
--
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Re: fixing an horrific formatted csv file.
TM = TX.Table_Maker (headings =
('Meeting','Date','Race','Number','Name','Trainer','Location'))
TM (race_table (your_csv_text)).write ()
Where do I find TX? Found this mention in the list, was it available in pip by
any name?
https://mail.python.org/pipermail/python-list/2014-February/667464.html
Sayth
--
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fixing an horrific formatted csv file.
What I am trying to do is to reformat a csv file into something more usable.
currently the file has no headers, multiple lines with varying columns that are
not related.
This is a sample
Meeting,05/07/14,RHIL,Rosehill Gardens,Weights,TAB,+3m Entire Circuit,
,
Race,1,CIVIC STAKES,CIVIC,CIVIC,1350,~ ,3U,~ ,QLT
,54,0,0,5/07/2014,, , , , ,No class
restriction, Quality, For Three-Years-Old and Upwards, No sex restriction,
(Listed),Of $10. First $6, second $2, third $1, fourth $5000,
fifth $2000, sixth $1000, seventh $1000, eighth $1000
Horse,1,Bennetta,0,Grahame Begg,Randwick,,0,0,16-3-1-3
$390450.00,,0,0,0,,98.00,M,
Horse,2,Breakfast in Bed,0,David Vandyke,Warwick Farm,,0,0,20-6-1-5
$201250.00,,0,0,0,,81.00,M,
Horse,3,Capital Commander,0,Gerald Ryan,Rosehill,,0,0,43-9-9-3
$438625.00,,0,0,0,,85.00,M,
Horse,4,Coup Ay Tee (NZ),0,Chris Waller,Rosehill,,0,0,35-9-6-5
$519811.00,,0,0,0,,101.00,G,
Horse,5,Generalife,0,John O'Shea,Warwick Farm,,0,0,19-6-1-3
$235045.00,,0,0,0,,87.00,G,
Horse,6,He's Your Man (FR),0,Chris Waller,Rosehill,,0,0,13-2-3-1
$108110.00,,0,0,0,,93.00,G,
Horse,7,Hidden Kisses,0,Chris Waller,Rosehill,,0,0,40-8-8-5
$565750.00,,0,0,0,,96.00,M,
Horse,8,Oakfield Commands,0,Gerald Ryan,Rosehill,,0,0,22-7-4-6
$269530.00,,0,0,0,,94.00,G,
Horse,9,Taxmeifyoucan,0,Gregory Hickman,Warwick Farm,,0,0,18-2-4-4
$539730.00,,0,0,0,,91.00,G,
Horse,10,The Peak,0,Bart James Cummings,Randwick,,0,0,15-6-1-0
$426732.00,,0,0,0,,95.00,G,
Horse,11,Tougher Than Ever (NZ),0,Chris Waller,Rosehill,,0,0,17-3-2-3
$321613.00,,0,0,0,,97.00,H,
Horse,12,TROMSO,0,Chris Waller,Rosehill,,0,0,47-8-11-2
$622300.00,,0,0,0,,103.00,G,
Race,2,FLYING WELTER - BENCHMARK 95 HCP,BM95,BM95,1100,BM95 ,3U,~
,HCP ,54,0,0,5/07/2014,, , , ,
,BenchMark 95, Handicap, For Three-Years-Old and Upwards, No sex restriction,Of
$85000. First $48750, second $16750, third $8350, fourth $4150, fifth $2000,
sixth $1000, seventh $1000, eighth $1000, ninth $1000, tenth $1000
Horse,1,Big Bonanza,0,Don Robb,Wyong,,0,57.5,31-9-4-3
$366860.00,,0,0,0,,92.00,G,
Horse,2,Casual Choice,0,Joseph Pride,Warwick Farm,,0,54,8-2-3-0
$105930.00,,0,0,0,
So what I am trying to so is end up with an output like this.
Meeting, Date, Race, Number, Name, Trainer, Location
Rosehill, 05/07/14, 1, 1,Bennetta,Grahame Begg,Randwick,
Rosehill, 05/07/14, 1, 2,Breakfast in Bed,David Vandyke,Warwick Farm,
So as a start i thought i would try inserting the Meeting and Race number
however I am just not getting it right.
import csv
outfile = open(/home/sayth/Scripts/cleancsv.csv, w)
with open('/home/sayth/Scripts/test.csv') as f:
f_csv = csv.reader(f)
headers = next(f_csv)
for row in f_csv:
meeting = row[3] in row[0] == 'Meeting'
new = row.insert(0, meeting)
while row[1] in row[0] == 'Race' 9: # pref less than next found
row[0]
# grab row[1] as id number
id = row[1]
# from row[0] and insert it in first position
new_lines = new.insert(1, id)
outfile.write(new_lines)
outfile.close()
How should I go about this?
Thanks
Sayth
--
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Re: fixing an horrific formatted csv file.
That's a really cool solution. I understand why providing full solutions is frowned upon, because it doesn't assist in learning. Which is true, it's incredibly helpful in this case. The python cookbook is really good and what I was using as a start for dealing with csv. But it doesn't even go anywhere near this. Lots of examples with simple inputs. Anyway Thanks again Sayth -- https://mail.python.org/mailman/listinfo/python-list
Re: SQLAlchemy - web framework ?
One of the main parts that is tripping myself up is that I need to consistently import xml files into my database. Looking to find the best support and methodologies to do this, that is one of the reasons I am looking at SqlAlchemy. Sayth -- https://mail.python.org/mailman/listinfo/python-list
SQLAlchemy - web framework ?
If I want to use SQLAlchemy as my ORM what would be the best option for a web framework? It appears the general advice regarding Django is to do it the Django way and use the django ORM and change it out for SQLAlchemy. That to me limited knowledge leaves flask, pyramid and turbogears 2. So if I wanted to not build it all myself as with flask then potentially pyramid, turbogears is the best option? Is this true? I have completed the TG2 intro tutorial and have built several small things with flask although I feel offput by doing anything bigger in flask. See what I have done is got my python knowledge to a fair point where I can do useful things, good knowledge of web HTML/CSS, built a few small projects in flask to get an idea for python web, completed django tutorials, turogears tutorials and now looking to design out a bigger project I want to set myself and i am trying to compile the parts so I can see what I will need to use and gather info to cover what othe things I will need to know. Do I have a false fear of flask and doing bigger projects? So at this point I know I want SQLAlchemy, will use postgres(although mysql/maria would work fine). Any pratical advice warmly welcomed, I think I am thining too much aimlessly maybe. http://turbogears.org/ http://www.pylonsproject.org/ http://flask.pocoo.org/ https://www.djangoproject.com/ http://www.tornadoweb.org/en/stable/ -- https://mail.python.org/mailman/listinfo/python-list
Re: SQLAlchemy - web framework ?
Roy.that is interesting that you can use mongoengine. Recent google results such as seem to assert there are a lot of inherent risk in swapping out components, though I may be misinterpreting it. http://www.slideshare.net/daikeren/tradeoffs-of-replacing-core-components Sayth -- https://mail.python.org/mailman/listinfo/python-list
xmltodict - TypeError: list indices must be integers, not str
I am using xmltodict. This is how I have accessed and loaded my file. import xmltodict document = open(/home/sayth/Scripts/va_benefits/20140508GOSF0.xml, r) read_doc = document.read() xml_doc = xmltodict.parse(read_doc) The start of the file I am trying to get data out of is. meeting id=35483 barriertrial=0 venue=Gosford date=2014-05-08T00:00:00 gearchanges=-1 stewardsreport=-1 gearlist=-1 racebook=0 postracestewards=0 meetingtype=TAB rail=True weather=Fine trackcondition=Dead nomsdeadline=2014-05-02T11:00:00 weightsdeadline=2014-05-05T16:00:00 acceptdeadline=2014-05-06T09:00:00 jockeydeadline=2014-05-06T12:00:00 club abbrevname=Gosford Race Club code=49 associationclass=2 website=http://; / race id=185273 number=1 nomnumber=7 division=0 name=GOSFORD ROTARY MAIDEN HANDICAP mediumname=MDN shortname=MDN stage=Acceptances distance=1600 minweight=55 raisedweight=0 class=MDNage=~ grade=0 weightcondition=HCPtrophy=0 owner=0 trainer=0 jockey=0 strapper=0 totalprize=22000 first=12250 second=4250 third=2100 fourth=1000 fifth=525 time=2014-05-08T12:30:00 bonustype=BX02 nomsfee=0 acceptfee=0 trackcondition= timingmethod= fastesttime= sectionaltime= formavailable=0 racebookprize=Of $22000. First $12250, second $4250, third $2100, fourth $1000, fifth $525, sixth $375, seventh $375, eighth $375, ninth $375, tenth $375 condition line=1 So thought I had it figured. Can access the elements of meeting and the elements of club such as by doing this. In [5]: xml_doc['meeting']['club']['@abbrevname'] Out[5]: u'Gosford Race Club' However whenever I try and access race in the same manner I get errors. In [11]: xml_doc['meeting']['club']['race']['@id'] --- KeyError Traceback (most recent call last) ipython-input-11-cce362d7e6fc in module() 1 xml_doc['meeting']['club']['race']['@id'] KeyError: 'race' In [12]: xml_doc['meeting']['race']['@id'] --- TypeError Traceback (most recent call last) ipython-input-12-c304e2b8f9be in module() 1 xml_doc['meeting']['race']['@id'] TypeError: list indices must be integers, not str why is accessing race @id any different to the access of club @abbrevname and how do I get it for race? Thanks Sayth -- https://mail.python.org/mailman/listinfo/python-list
Re: xmltodict - TypeError: list indices must be integers, not str
On Saturday, 10 May 2014 22:10:14 UTC+10, Peter Otten wrote: flebber wrote: I am using xmltodict. This is how I have accessed and loaded my file. import xmltodict document = open(/home/sayth/Scripts/va_benefits/20140508GOSF0.xml, r) read_doc = document.read() xml_doc = xmltodict.parse(read_doc) The start of the file I am trying to get data out of is. meeting id=35483 barriertrial=0 venue=Gosford date=2014-05-08T00:00:00 gearchanges=-1 stewardsreport=-1 gearlist=-1 racebook=0 postracestewards=0 meetingtype=TAB rail=True weather=Fine trackcondition=Dead nomsdeadline=2014-05-02T11:00:00 weightsdeadline=2014-05-05T16:00:00 acceptdeadline=2014-05-06T09:00:00 jockeydeadline=2014-05-06T12:00:00 club abbrevname=Gosford Race Club code=49 associationclass=2 website=http://; / race id=185273 number=1 nomnumber=7 division=0 name=GOSFORD ROTARY MAIDEN HANDICAP mediumname=MDN shortname=MDN stage=Acceptances distance=1600 minweight=55 raisedweight=0 class=MDNage=~ grade=0 weightcondition=HCP trophy=0 owner=0 trainer=0 jockey=0 strapper=0 totalprize=22000 first=12250 second=4250 third=2100 fourth=1000 fifth=525 time=2014-05-08T12:30:00 bonustype=BX02 nomsfee=0 acceptfee=0 trackcondition= timingmethod= fastesttime= sectionaltime= formavailable=0 racebookprize=Of $22000. First $12250, second $4250, third $2100, fourth $1000, fifth $525, sixth $375, seventh $375, eighth $375, ninth $375, tenth $375 condition line=1 So thought I had it figured. Can access the elements of meeting and the elements of club such as by doing this. In [5]: xml_doc['meeting']['club']['@abbrevname'] Out[5]: u'Gosford Race Club' However whenever I try and access race in the same manner I get errors. In [11]: xml_doc['meeting']['club']['race']['@id'] --- KeyError Traceback (most recent call last) ipython-input-11-cce362d7e6fc in module() 1 xml_doc['meeting']['club']['race']['@id'] KeyError: 'race' In [12]: xml_doc['meeting']['race']['@id'] --- TypeError Traceback (most recent call last) ipython-input-12-c304e2b8f9be in module() 1 xml_doc['meeting']['race']['@id'] TypeError: list indices must be integers, not str why is accessing race @id any different to the access of club @abbrevname and how do I get it for race? If I were to guess: there are multiple races per meeting, xmltodict puts them into a list under the race key, and you have to pick one: doc = xmltodict.parse(\ ... meeting ...race id=first race.../race ...race id=second race.../race ... /meeting ... ) type(doc[meeting][race]) class 'list' doc[meeting][race][0][@id] 'first race' doc[meeting][race][1][@id] 'second race' So xml_doc['meeting']['race'][0]['@id'] or for race in xml_doc[meeting][race]: print(race[@id]) might work for you. Thanks so much Peter, yes both worked indeed. Sayth -- https://mail.python.org/mailman/listinfo/python-list
Re: golang OO removal, benefits. over python?
Also, is there anything seriously lacking in Python, Java and C?
Marko
From their FAQ:
Go was born out of frustration with existing languages and environments for
systems programming. Programming had become too difficult and the choice of
languages was partly to blame. One had to choose either efficient compilation,
efficient execution, or ease of programming; all three were not available in
the same mainstream language. Programmers who could were choosing ease over
safety and efficiency by moving to dynamically typed languages such as Python
and JavaScript rather than C++ or, to a lesser extent, Java.
Go is an attempt to combine the ease of programming of an interpreted,
dynamically typed language with the efficiency and safety of a statically
typed, compiled language. It also aims to be modern, with support for networked
and multicore computing.
Although Go doesn't have exception handling either which is odd.
http://blog.golang.org/error-handling-and-go
http://uberpython.wordpress.com/2012/09/23/why-im-not-leaving-python-for-go/
Or you can use defer http://blog.golang.org/defer-panic-and-recover
func CopyFile(dstName, srcName string) (written int64, err error) {
src, err := os.Open(srcName)
if err != nil {
return
}
defer src.Close()
dst, err := os.Create(dstName)
if err != nil {
return
}
defer dst.Close()
return io.Copy(dst, src)
}
That's a strange locution: You are suggesting that go had OOP and it was
removed
Although Go has types and methods and allows an object-oriented style of
programming, there is no type hierarchy. The concept of interface in Go
provides a different approach that we believe is easy to use and in some ways
more general. There are also ways to embed types in other types to provide
something analogous--but not identical--to subclassing.
http://golang.org/doc/faq#Is_Go_an_object-oriented_language
sayth
--
https://mail.python.org/mailman/listinfo/python-list
golang OO removal, benefits. over python?
I was wondering if a better programmer than I could explain if the removal of OO features in golang really does offer an great benefit over python. An article I was reading ran through a brief overview of golang in respect of OO features http://areyoufuckingcoding.me/2012/07/25/object-desoriented-language/ . maybe removing OO features would be a benefit to c++ users or Java users but python? As I have seen an interesting reddit or two of people trying to figure out go today it was a ruby user, totally lost with structs. So anecdotally is actually python and ruby users changing to Go, here is a blog and reddit from Rob Pike. http://www.reddit.com/comments/1mue70 Why would a Python user change to go except for new and interesting? Sayth -- https://mail.python.org/mailman/listinfo/python-list
Re: IDLE won't run after installing Python 3.3 in Windows
Well firstly being windows I assume that you did a restart after install. Python.org python doesn't come with the windows extensions which can be installed separately. On windows I use winpython is totally portable and can be installed as system version includes all extensions as well as Numpy and matplotlib etc which can be a bit tricky to install otherwise. There is enthought and anaconda packaged python a well but my choice is winpython Give it a try and you'll definitely have a working system version. Sayth -- https://mail.python.org/mailman/listinfo/python-list
Re: Best practices to overcome python's dynamic data type nature
Here's a great resource http://www.anrdoezrs.net/click-7079286-11260198?url=http%3A%2F%2Fshop.oreilly.com%2Fproduct%2F0636920029533.do%3Fcmp%3Daf-code-book-product_cj_9781449367794_%7BPID%7Dcjsku=0636920029533 Sayth -- https://mail.python.org/mailman/listinfo/python-list
zip list, variables
If c = map(sum, zip([1, 2, 3], [4, 5, 6])) c Out[7]: [5, 7, 9] why then can't I do this? a = ([1, 2], [3, 4]) b = ([5, 6], [7, 8]) c = map(sum, zip(a, b)) --- TypeError Traceback (most recent call last) ipython-input-3-cc046c85514b in module() 1 c = map(sum, zip(a, b)) TypeError: unsupported operand type(s) for +: 'int' and 'list' How can I do this legally? Sayth -- https://mail.python.org/mailman/listinfo/python-list
Re: zip list, variables
Thank you for the replies. Looking at the replies I am wondering which solution is more scalable. At the moment it is only 2 nested lists but what about 5, 10, 20 or more? Should I start looking into numpy to handle this or will list comprehension [ [ x + y for x, y in zip(x,y) ] for x, y in zip(a,b) ] Be sufficient ? Thanks Sayth -- https://mail.python.org/mailman/listinfo/python-list
PyDev 3.0 Released
I see the main difference between Liclipes and Eclipse+Pydev being lightweight and Loclipse preconfigured to a degree. Moving forward what advantages would I get by buying Liclipes over Eclipse? Sayh -- https://mail.python.org/mailman/listinfo/python-list
XML python to database
Can anyone help me overcome a terminology and jargon barrier I am having in fully defining what tools to use to fulfil a process. I want to create a database 6 Related tables. Update information 1 or twice a week with data from an XML file that I will download, this data would update rows in 5 tables of the database. From there display, add, edit and view data in web page and produce other info based on this. My main roadblock is the XML process, I am finding it unclear to understand what tools and how to manage this process. Most examples show manually inputting data. What I know and have learnt. - can insert and update data into database using python(values I type in) - can query and view data with python from tables - can design good SQL related tables(don't know much NoSQL) - Use lxml to open view and find info from nodes of an XML file - Basic Django/Flask/Pylons haven't completed a sizable project yet but have completed their tutorials and have some previous web experience. When I look for info on this process - Info from django leads ultimately to fixtures Django Docs, initial fixtures https://docs.djangoproject.com/en/dev/howto/initial-data/ - SQLAlchemy info leads http://docs.sqlalchemy.org/en/latest/orm/examples.html#xml-persistence - Spyne RPC toolkit http://spyne.io/#s=sqlser=Xmlshow=Schema Reading these I am not sure this covers what I am actually trying to do, reliably and repeatedly update a database with XML data. Can anyone advise of the correct terminology I should be searching for to learn more. What python tools would best help me complete Sayth -- https://mail.python.org/mailman/listinfo/python-list
Re: XML python to database
Yes I have done the lxml search and learnt how to open view and query the file. But what is the next step in the process? To get it so that I can reliably push XML files to my database repeatedly. Looking for a basic structure or example to use to guide me for first time. Sayth -- https://mail.python.org/mailman/listinfo/python-list
Re: Python IDE/Eclipse
On Aug 27, 6:34 pm, UncleLaz andrei.lis...@gmail.com wrote: On Aug 26, 5:18 pm, Dave Boland dbola...@fastmail.fm wrote: I'm looking for a good IDE -- easy to setup, easy to use -- for Python. Any suggestions? I use Eclipse for other projects and have no problem with using it for Python, except that I can't get PyDev to install. It takes forever, then produces an error that makes no sense. An error occurred while installing the items session context was:(profile=PlatformProfile, phase=org.eclipse.equinox.internal.provisional.p2.engine.phases.Install, operand=null -- [R]org.eclipse.cvs 1.0.400.v201002111343, action=org.eclipse.equinox.internal.p2.touchpoint.eclipse.actions.InstallBu ndleAction). Cannot connect to keystore. This trust engine is read only. The artifact file for osgi.bundle,org.eclipse.cvs,1.0.400.v201002111343 was not found. Any suggestions on getting this to work? Thanks, Dave I use Aptana Studio 3, it's pretty good and it's based on eclipse Emacs with emacs-for-python makes the install and setup a breeze and emacs does a lot for you without much learning. http://gabrielelanaro.github.com/emacs-for-python/ geany is great I use it the most. http://www.geany.org/ Finally this is a fairly new project, but it could be pretty good. they are heavy in development of version 2. Ninja ide http://ninja-ide.org/ they provide packages for Debian/ubuntu fedora mandriva windows and the developers are very helpful if you have any issues or questions jump on IRC for a chat. Sayth -- http://mail.python.org/mailman/listinfo/python-list
Re: learnpython.org - an online interactive Python tutorial
On Apr 23, 4:28 pm, Dennis Lee Bieber wlfr...@ix.netcom.com wrote: On Fri, 22 Apr 2011 17:08:53 +1000, Chris Angelico ros...@gmail.com declaimed the following in gmane.comp.python.general: I'm not so sure that all strings should autopromote to integer (or numeric generally). However, adding a string and a number _should_ (IMHO) promote the number to string. print Hello, +name+, you have +credit+ dollars of credit with us. Okay, that one is probably better done with the % operator, but it definitely makes logical sense to concatenate numbers and strings as strings, not to add them as numbers. But what if /I/ want A + 1 to return B G -- Wulfraed Dennis Lee Bieber AF6VN wlfr...@ix.netcom.com HTTP://wlfraed.home.netcom.com/ I like what you have done. Was it deliberate that your site teaches python 2.x code rather than 3.x? -- http://mail.python.org/mailman/listinfo/python-list
Re: Make Python portable by default! (Re: Python IDE/text-editor)
On Apr 18, 6:33 pm, Chris Angelico ros...@gmail.com wrote: On Mon, Apr 18, 2011 at 6:15 PM, Wolfgang Keller felip...@gmx.net wrote: Which part of the word installed don't you understand while actually using it? ;- I have various programs which I distribute in zip/tgz format, and also as a self-extracting executable on Windows. Does this mean they need to be installed only under Windows? No. They need to be installed to be run, it's just that the installer is unzip or tar. (FYI, we installed a new minister in the church's manse a few weeks ago. Didn't involve anything more than a mv.) Chris Angelico WTF it's just that the installer is unzip or tar. If I take my clothes out of my luggage bag have i just installed them? Don't think so unless your new minister is wearing them lol. Sayth -- http://mail.python.org/mailman/listinfo/python-list
Re: Python IDE/text-editor
On Apr 16, 3:43 pm, Alec Taylor alec.tayl...@gmail.com wrote: Thanks, but non of the IDEs so far suggested have an embedded python interpreter AND tabs... a few of the editors (such as Editra) have really nice interfaces, however are missing the embedded interpreter... emacs having the opposite problem, missing tabs (also, selecting text with my mouse is something I do often). Please continue your recommendations. Thanks, Alec Taylor On Sat, Apr 16, 2011 at 3:29 PM, John Bokma j...@castleamber.com wrote: Ben Finney ben+pyt...@benfinney.id.au writes: Alec Taylor alec.tayl...@gmail.com writes: I'm looking for an IDE which offers syntax-highlighting, code-completion, tabs, an embedded interpreter and which is portable (for running from USB on Windows). Either of Emacs URL:http://www.gnu.org/software/emacs/ or Vim URL:http://www.vim.org/ are excellent general-purpose editors that have strong features for programmers of any popular language or text format. I second Emacs or vim. I currently use Emacs the most, but I think it's good to learn both. -- John Bokma j3b Blog:http://johnbokma.com/ Facebook:http://www.facebook.com/j.j.j.bokma Freelance Perl Python Development:http://castleamber.com/ -- http://mail.python.org/mailman/listinfo/python-list Editra via shelf has an imbedded interpreter, editra is also working towards a new python tools plugin that will allow you to change interpreter jython/python2.7/python3.2 etc. -- http://mail.python.org/mailman/listinfo/python-list
Re: Python IDE/text-editor
On Apr 16, 11:07 pm, John Bokma j...@castleamber.com wrote: Jorgen Grahn grahn+n...@snipabacken.se writes: If you cannot stand non-tabbed interfaces, you probably can't stand other non-Windows-like features of these two, like their menu systems. Emacs just has a menu system. Although I rarely use it :-). One of the things one learns after some time with either vim or Emacs is that using the mouse delays things. -- John Bokma j3b Blog:http://johnbokma.com/ Facebook:http://www.facebook.com/j.j.j.bokma Freelance Perl Python Development:http://castleamber.com/ Also Dreampie is a greater interactive shell. http://dreampie.sourceforge.net/ Features automatic completion of attributes and file names. Automatically displays function arguments and documentation. Keeps your recent results in the result history, for later user. Can automatically fold long outputs, so you can concentrate on what's important. Lets you save the history of the session as an HTML file, for future reference. You can then load the history file into DreamPie, and quickly redo previous commands. Automatically adds parentheses and optionally quotes when you press space after functions and methods. For example, execfile fn automatically turns into execfile(fn). Supports interactive plotting with matplotlib. (You have to set interactive: True in the matplotlibrc file for this to work.) Supports Python 2.5, 2.6, 2.7, Jython 2.5, IronPython 2.6 and Python 3.1. Works on Windows, Linux and Mac. (Mac support requires MacPorts.) Extremely fast and responsive. Free software licensed under GPL version 3. -- http://mail.python.org/mailman/listinfo/python-list
Re: Free software versus software idea patents (was: Python benefits over Cobra)
On Apr 7, 7:17 pm, Chris Angelico ros...@gmail.com wrote: On Thu, Apr 7, 2011 at 5:39 PM, Steven D'Aprano steve+comp.lang.pyt...@pearwood.info wrote: Do you want to know who scares me? Google and Apple. Google, because they're turning software from something you run on your own computer to something you use on a distant server you have no control over. And Apple, because they're turning the computer from a general purpose computing device you control, to a locked-down, restricted, controlled specialist machine that only runs what they permit you to run. But I digress. I agree about Apple, but Google are not turning software... into; they are providing an option that involves such things. They are not stopping you from running software on your own computer, and they never can. One of my hobbies is running (and, let's face it, playing) online games. The MUD system is similar to what Google does, only more so; the server has *everything* and the client is just basic TELNET. Yes, some clients have some nice features, but they don't need to, and some of my players use extremely basic terminals. But nobody complains that they're playing a game they have no control over (and the only complaints about a distant server relate to ping times). Having the option to cloud things is a Good Thing. Yes, you lose control if you put your data on someone else's cloud, but if you want the functionality, you pay the price. If you don't like that price, you stick with your desktop software. Chris Angelico Currently Oracle's actions seem far more concerning than anything microsoft could cook up. Look at the Openjdk http://www.theregister.co.uk/2011/02/04/openjdk_rules/ now thats a joke... As I see it, C# has never had more than an 8% market share. But perhaps you have some better data. Jobs posted in Sydeny in the last 3 days on our major search seek.com.au; Jobs% of total Jobs c# 134 17.1% java422 53.9% python 29 3.7% c++ 79 10.1% Ruby16 2.0% asp.net 103 13.2% scala 0 0.0% Total 783 -- http://mail.python.org/mailman/listinfo/python-list
Re: How to use Python well?
On Feb 17, 11:43 am, Steven D'Aprano steve +comp.lang.pyt...@pearwood.info wrote: On Thu, 17 Feb 2011 10:12:52 +1100, Ben Finney wrote: Terry Reedy tjre...@udel.edu writes: The most import thing is automated tests. Steven D'Aprano steve+comp.lang.pyt...@pearwood.info writes: The most important thing is structured programming and modularization. Steel-cage death match. FIGHT! To the death? No, to the pain! http://en.wikiquote.org/wiki/The_Princess_Bride -- Steven I really liked Abstraction Chapter 6 7 In Magnus Lie Hetlands book novice to professional. It really show the how to think it out which seems to be what your after. The first sub heading in Chapter 6 is Laziness is a virtue can't beat that. -- http://mail.python.org/mailman/listinfo/python-list
Re: Call to Update All Tutorials to Python3.x Standards.
On Feb 14, 11:35 am, Cameron Simpson c...@zip.com.au wrote: On 13Feb2011 14:47, rantingrick rantingr...@gmail.com wrote: | On Feb 13, 4:30 pm, Steven D'Aprano steve| +comp.lang.pyt...@pearwood.info wrote: | The official stance of the Python development team is that 2.7 and 3.x | will co-exist for a long, long time. Removing 2.x tutorials would be | cutting off our nose to spite our face. | | That is BS Steven and you know it! Of course we are going to support | 2.x for a long, long, time. Heck we even have downloads available for | Python1.x. I am talking about TUTORIALS steven, TUTORIALS! Steven is also talking about tutorials. Perhaps my comprehension skiils are weak; I am basing my assrtion on his use of the word tutorials in the sentence: Removing 2.x tutorials would be cutting off our nose to spite our face. I admit my reading here may be superficial and that you may be seeing a deeper intent. [...] | [...] Stop spreading lies Steven. [...] | PS: The only troll here is YOU! [...] I confess to finding these two sentences in your message contradictory. Again, my poor comprehension skills must be to blame. Cheers, -- Cameron Simpson c...@zip.com.au DoD#743http://www.cskk.ezoshosting.com/cs/ That's just the sort of bloody stupid name they would choose. - Reginald Mitchell, designer of the Spitfire Python 3 Tutorial http://docs.python.org/py3k/ Python 3 Tutorial http://diveintopython3.org/ Python 3 Video Tutorials http://www.youtube.com/results?search_query=python+3+tutorialaq=f Python 3 Tutorial http://www.swaroopch.com/notes/Python_en:Table_of_Contents Python 3 Book http://www.amazon.com/Programming-Python-Complete-Introduction-Language/dp/0321680561/ref=sr_1_1?s=booksie=UTF8qid=1297682115sr=1-1 If people want to learn there are already plenty of resources. -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On Feb 5, 10:24 am, Stephen Hansen me+list/pyt...@ixokai.io wrote: On 2/4/11 3:01 PM, rantingrick wrote: Put your money where your mouth is. ditto! I thought as much. My money is where my mouth is: but that is not IDLE, as I have no use for it and no interest in it at all. The status quo with regards to IDLE is satisfactory to me. You're the one talking so much about how it needs to improve. So do it. Get started. Now. But you'll just find another excuse to rant on like you always do, and be basically useless. Me, I _have_ contributed patches: I have released actual code that actual people have found actually useful. I do run two build slaves and proactively try to assist in resolving issues that come up with Python's testing (usually: ouch, there's a lot of red at the moment, must get cracking) and stability. So, yeah. You're the hypocrite here, man. -- Stephen Hansen ... Also: Ixokai ... Mail: me+list/python (AT) ixokai (DOT) io ... Blog:http://meh.ixokai.io/ signature.asc 1KViewDownload Idlefork isn't dead to rick! just pining for the alps! -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On Feb 3, 7:41 am, Corey Richardson kb1...@aim.com wrote: On 2/2/2011 2:44 PM, rantingrick wrote: Will you be forking IDLE and setting up some sort of tracker for improvements? +1 for this. Enough talk ratingrick where is your feature and request tracker for your idle fork? How can people assist you in your new idle fork project? What are your stated project goals timeline? We all suspect you have no answers to basic questions which would involve you doing anything!!! So come on rick reply with some other pius full of shit answer that will absolve you of action and will still leave you the worlds biggest one handed typist. -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On Feb 1, 11:38 pm, rantingrick rantingr...@gmail.com wrote: On Feb 1, 4:20 am, flebber flebber.c...@gmail.com wrote: Sorry Rick too boringtrying to get bored people to bite at your ultra lame post yawn... Well reality and truth both has a tendency to be boring. Why? Well because we bathe in them daily. We have come accustomed, acclimated, and sadly complacent of the ill state of our stdlib. Yes, boring. However we must be aware of these things. Yes but fixing idle just gives us another editor, there isn't a shortage of editors. There is a shortage of a common community code base for an ide framework, logical, reusable and extensible. For an example of a brilliant beginners ide racket has it covered with DrRacket http://racket-lang.org/ , it has selectable language levels beginner, intermediate, advanced that allows the learner to adjust the level of language features available as they learn, teachpacks are installable to add extra features or options when completing the tutorials(could easily be adapted to the python tutorials). If idle is for teaching people to learn python shouldn't it have the facility to do that? -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On Feb 1, 4:39 am, rantingrick rantingr...@gmail.com wrote: IDLE: A cornicopia of mediocrity and obfuscation. -- by Rick Johnson IDLE --which is the Python Integrated Development and Learning Environment-- was once the apple of Guido's eye but has since degenerated into madness many years ago and remains now as the shining jewel show piece on the proverbial python wall of shame. A once mighty dream of programming for everyone that is now nothing more than an example of how NOT to program. IDLE contains some of the worst code this community has created. Bad design patterns, tacked on functionality, blasphemous styling, and piss poor packaging. There seems to be no guiding goals or game-plan. And year after year if IDLE *does* get any attention it's just more haphazard code thrown into the mix by someone who has gone blind from reading the source. However we cannot blame the current maintainer (if any such even exists!) because NOBODY can maintains such a spaghetti mess that this package has become! If we would have had a proper game plan from day one i believe we could have avoided this catastrophe. Follows is an outline of the wrongs with some suggestions to right them... * First of all the main two modules PyShell and EditorWindow are laid out in such a non sequential way that it is virtually impossible to follow along. We should have had a proper app instance from which all widgets where combined. The main app should have followed a common sense sequential mentality of... * subclassing the tk.Toplevel * initializing instance variables * creating the main menu * creating the sub widgets * declaring internal methods * declaring event handlers * then interface/generic methods. This is the recipe for order AND NOT CHAOS! What we have now is utter chaos! When we have order we can read source code in a sequential fashion. When we have order we can comprehend what we read. And when we have order we can maintain a library/package with ease. However sadly we DO NOT have order, we have CHAOS, CHAOS, and more CHAOS! * The underlying sub widgets should have started with their own proper order of declared initialization. And all events should be handled in the widget at hand NOT outsourced to some other class! * One of the biggest design flaws is the fact that outside modules manipulate the main editor/pyshells events. This is a terrible way to code. For example the AutoCompleteWindow takes over the tab event #-- Puesdo Code --# # in editor window __init__ self.autocomplete = AutoComplete(blah) # in editor window onKeyPress(blah) if key == 'Tab' and blah: self.autocomplete.show_tip(blah) elif key == 'Escape' and acw.is_visibe(): self.autocomplete.hide() This is a bad design! The main editor window should handle all its own events AND THEN call outside class methods when needed. We don't want Mommy classes telling the kids what to do, when to eat, when to sleep, and when to excrete! We should create our objects with the virtue of self reliance and responsibility!. The Colorizer, ParenMatch, textView, TreeWidget, CallTips, and many other modules are guilty of event stealing also. Event functionality must be handled in the widget itself, NOT stolen and handled in an outside class. When we split up sequential code we get CHAOS! * Another bad choice was creating custom reusable widgets (Tabbedpages, FindDialog, ReplaceDialog, etc...) and leaving them in idlelib. These should have been moved into the lib-tk module where they would be more visible to python programmers AND we could reduce the cruft in the idlelib! Remember, when we create more files, folders, and objects we create CHAOS. And nobody can learn from CHAOS! * Another blasphemy is the fact that every module should include some sort of test to display its usage. If the module is a GUI widget then you MUST show how to use the widget in a window. Sadly like all everything else, idlelib is devoid of examples and testing. And the very few tests that DO exists just blow chunks! * Last but not least idlelib does not follow PEP8 or ANY convention. So much so that it seems the developers snubbed their nose at such conventions! We are missing doc strings and comments. We have built- ins being re-bound! Just code horror after code horror. These are just the top of the list. The peak of a huge iceberg that threatens to sink the community in the arms of chaos never to return. I am beginning to believe that this community is either made of amateurs due to this lackluster code in the stdlib. However it could be that the folks are really professional and refuse to work on such a horrible code base (which i understand). I am going with the latter. When are we going to demand that these abominations be rectified? How much longer must we wait? A year? Ten years?... i don't think Python will survive another ten years with this attitude of
Re: Trying to decide between PHP and Python
On Jan 5, 6:48 pm, Octavian Rasnita orasn...@gmail.com wrote: From: Tomasz Rola rto...@ceti.com.pl On Tue, 4 Jan 2011, Dan M wrote: As to choice between Python and PHP, I would say learn anything but PHP. Even Perl has fewer tentacles than PHP. However, the quality of code depends heavily on who writes it. My impression is that more folks of I did it and it works so it is good, right? attitude can be found among Perl/PHP crowd (compared to Python or Ruby or...). The reason is probably the easyness of those languages (mostly because of tons of readymade code on the net) which - wrongly - suggests they are already there, no need to learn anymore. Yes you are right. Perl is much flexible than all other languages and there was written a lot of bad code in the past that can now be found on the net, beeing very hard for a newbie to find only the good examples and tutorials. But Perl offers many helpful modules for testing the apps so for good programmers there is not true the idea of it works so it's ok. Usually we compare the languages although we always think to all aditional modules and libraries we can use with them for creating apps. Thinking this way, Perl is better than Python for creating web apps, because Catalyst framework is more advanced than the frameworks for Python and it is more flexible even than Ruby on Rails, DBIx::Class ORM is a very advanced ORM and a very clean one and Perl web apps can use strong templating systems and form processors, unicode is a native code for Perl for a long time and so on. So how good is the language depends on what you need to use it for. (But I hope that this won't start a language war, because I have just done the same on a Perl mailing list telling about some Perl disadvantages towards Python :) Octavian My two cents, I am understanding python far better by learning scheme. Didn't intentionally set out to achieve that as a goal just a by product. An excelent resource http://htdp.org and using the racket scheme ide(as much of an ide as idle), simple thorough well explained concepts via worked examples and a very encouraging and enthusiastic mail group, much like this list. I would so love a book like that for python but after i complete htdp I may not need it. Regards Sayth -- http://mail.python.org/mailman/listinfo/python-list
Re: User input masks - Access Style
On Jan 1, 11:13 am, Tim Harig user...@ilthio.net wrote: On 2010-12-31, flebber flebber.c...@gmail.com wrote: On Dec 28 2010, 12:21 am, Adam Tauno Williams awill...@whitemice.org wrote: On Sun, 2010-12-26 at 20:37 -0800, flebber wrote: Is there anyay to use input masks in python? Similar to the function found in access where a users input is limited to a type, length and format. http://faq.pygtk.org/index.py?file=faq14.022.htpreq=show Typically this is handled by a callback on a keypress event. Regarding 137 of the re module, relating to the code above. 137? I am not sure what you are referencing? EDIT: I just needed to use raw_input rather than input to stop this input error. Sorry, I used input() because that is what you had used in your example and it worked for my system. Normally, I would have used window.getstr() from the curses module, or whatever the platform equivilant is, for getting line buffered input. 137 is the line number in the re module which refernces the match string. In this example the timeinput. -- http://mail.python.org/mailman/listinfo/python-list
Re: Tkinter: The good, the bad, and the ugly!
On Dec 31, 3:04 pm, Robert sigz...@gmail.com wrote: On 2010-12-30 22:28:39 -0500, rantingrick said: On Dec 30, 8:41�pm, Robert sigz...@gmail.com wrote: On 2010-12-30 19:46:24 -0500, rantingrick said: Just to clarify...I like Python. I am learning it at the moment. Glad to have you aboard Robert! Thanks! 3. What is your opinion of Tkinter as to it's usefulness within the stdlib? No, I really don't see the need for it to be in the stdlib but that isn't my call. But it is your call Robert. Anyone who writes Python code --whether they be a beginner with no prior programming experience or a fire breathing Python Guru-- has a right to inject their opinion into th community. We really need input from first time users as they carry the very perspective that we have completely lost! I speak up. :-) 5. Should Python even have a GUI in the stdlib? I would say no but that is my opinion only and it doesn't matter. Python's domain isn't GUI programming so having it readily available on the sidelines would be fine for me. I agree that Python's domain is not specifically GUI programming however to understand why Tkinter and IDLE exists you need to understand what Guido's dream was in the beginning. GvR wanted to bring Programming to everyone (just one of his many heroic goals!). He believed (i think) that GUI programming is very important , and that was 20 years ago!!. So he included Tkinter mainly so new Python programmers could hack away at GUI's with little or no effort. He also created a wonderful IDE for beginners called IDLE. His idea was perfect, however his faith in TclTk was flawed and so we find ourselves in the current situation we have today. With the decay of Tkinter the dream has faded. However we can revive this dream and truly bring Python into the 21st century! I don't think Tkinter was in there for large programming. Tkinter is crufty and probably should be moved out. For whipping up quick gui things to scratch an itch it is good. I lurk more on the Tcl side of things. When the mention of separating Tcl and Tk development, I fall on the side of separating them. Tcl, like Python should stand on its own. Widget frameworks are extras to me. One way the Tcl community has stagnated has been its insistence on Tk. There was a wxTcl project...it died. That would have been good for the Tcl community. Luckily there is a GTk framework (Gnocl) that is really good. But it still doesn't get the props that it deserves. The second way the Tcl community irks me is the not invented here attitude. I like the syntax of Tcl and I like the community. They are some good folks. Try asking I want to build a Nagios clone in Tcl type question and invariably you get Why? There is already Nagios?. That stems from the glue language roots I think but to me that is the wrong attitude. You want people to take a look at a language (any language), you build stuff with it that people want to use. Ruby would not be as big as it is if Rails hadn't come along. Nuff of that... ;-) 6. If Python should have a GUI, then what traits would serve our community best? This is a good one. It should be: - cross platform - Pythonic - as native as possible Cross platform and native are hard. Just look at all the work with PyQt/PySide and wxPython. It took them years to get where they are. Hmm, wxPython is starting to look like the answer to all our problems. WxPython already has an IDE so there is no need to rewrite IDLE completely. What do we have to loose by integrating wx into the stdlib, really? wxPython is really good. The downside is that is shows (or did show) its C++ roots. Nokia is making a run with PySide (their version of the PyQt framework) and since it has a company behind it might go pretty far. Qt can be used for a lot of problem domains. Anyway, I wasn't meaning to be rough with you. Just trying to figure out where you were coming from. I am acquianted with Kevin Walzer and he is a good guy. -- Robert I thank this thread for putting me onto Pyside +1 -- http://mail.python.org/mailman/listinfo/python-list
Re: User input masks - Access Style
On Dec 28 2010, 12:21 am, Adam Tauno Williams awill...@whitemice.org wrote: On Sun, 2010-12-26 at 20:37 -0800, flebber wrote: Is there anyay to use input masks in python? Similar to the function found in access where a users input is limited to a type, length and format. http://faq.pygtk.org/index.py?file=faq14.022.htpreq=show Typically this is handled by a callback on a keypress event. Can I get some clarification on the re module specifically on matching string Line 137 of the Re module def match(pattern, string, flags=0): Try to apply the pattern at the start of the string, returning a match object, or None if no match was found. return _compile(pattern, flags).match(string) -- http://mail.python.org/mailman/listinfo/python-list
Re: User input masks - Access Style
On Dec 28 2010, 12:21 am, Adam Tauno Williams awill...@whitemice.org
wrote:
On Sun, 2010-12-26 at 20:37 -0800, flebber wrote:
Is there anyay to use input masks in python? Similar to the function
found in access where a users input is limited to a type, length and
format.
http://faq.pygtk.org/index.py?file=faq14.022.htpreq=show
Typically this is handled by a callback on a keypress event.
Sorry
Regarding 137 of the re module, relating to the code above.
# validate the input is in the correct format (usually this would be
in
# loop that continues until the user enters acceptable data)
if re.match(r'''^[0-9]{2}:[0-9]{2}:[0-9]{2}$''', timeInput) == None:
print(I'm sorry, your input is improperly formated.)
sys.exit(1)
EDIT: I just needed to use raw_input rather than input to stop this
input error.
Please enter time in the format 'MM:SS:HH':
11:12:13
Traceback (most recent call last):
File C:\Documents and Settings\renshaw\workspace\Testing\src
\Time.py, line 13, in module
timeInput = input()
File C:\Eclipse\plugins\org.python.pydev_1.6.3.2010100422\PySrc
\pydev_sitecustomize\sitecustomize.py, line 176, in input
return eval(raw_input(prompt))
File string, line 1
11:12:13
^
SyntaxError: invalid syntax
--
http://mail.python.org/mailman/listinfo/python-list
Re: Python - NAWIT / Community
On Jan 1, 9:03 am, Fabio Zadrozny fabi...@gmail.com wrote: My question relates to community contribution. My concern arose when recently installing the pydev.org extensions in Eclipse. Now as far as my understanding goes the licensing on both is open source GPL. However Pydev became open source as part of aptana's acquistion, and for the moment pydev can be installed as part of the Aptana studio 2/3 releases individually as a plugin, but moving on if you vist the aptana site there is sweet little about python on their site, their site is dominated by Radrails. Just a little fix there, Pydev is open source EPL (not GPL). Also, yes, there's little content about Pydev in the Aptana homepage, but it points to the main Pydev homepage (http://pydev.org) which has the proper content related to Python (and it's currently being actively developed and also integrated in Aptana Studio 3, which is where the current efforts are targeted within Aptana now). Sorry if this causes the (wrong) perception that Pydev doesn't get as much attention. Can't help thinking they open sourced Pydev so they could bench it. So I started thinking that the only consistent env each python person has is idle as it ships in the install. Sorry, but I don't follow your thoughts here... there are many consistent environments for python development which are properly supported (Pydev being only one of them as you can see athttp://stackoverflow.com/questions/81584/what-ide-to-use-for-python). Sometimes we can contribute with money and sometimes with time, if I was to contribute money to ensure that I and all new coming python programmers could have a first class development environment to use what would I donate to? At the moment no particular group seems applicable. Is pydev actively being developed and for who? SPE is a great idea but is Stan still developing? Pyscripter is good but not 64 capable. Plus none of these projects seem community centric. I'm the current Pydev maintainer (since 2005)... and while I cannot state that I'll be in that role forever (forever is quite a long time), I do think it's well maintained and there are occasional patches from the community that uses it (although I still get to review all that goes in). Maybe its just my wish, maybe something already exists, but to my mind why is there not a central python community ide or plugin setup like pydev or using pydev(since currently it is very good - to me), which I know or at least could confidently donate time or money to further python. This could apply to many python area's does python use easy_install or pypm, well if you want camelot or zope (unless you have business edition) its easy_install, but you wont find an ide with built in egg or pypm support? I think the issue is that only recently (if you compare with the others) has easy_install became the de facto standard in python (so, it'd be more an issue of interest adding such a feature to the ide). Why every Ruby ide has gems manager, and for that fact look at netbeans, the ide is good but support for python is mentioned on a far flung community page where some developers are trying to maintain good python support. PS they seem to be doing a good job, but a review of the mailing list archives shows little activity. One could say that activestate puts in good support but then they do not provide an ide within the means of the average part time person retailing its main edition at over $300, Pycharm a good ide at $99 but then where is my money going. I think a community plugin architecture which contained components like pydev, pyscripter, eclipse and eggs/pypm packages would give a place I can contribute time as my skills grow and confidently donate money knowing I am assisting the development of community tools and packages we all can use. No need to reinvent the wheel most things already exist, for example apt-get rpm style package management time tested and could be easily used to manage python eggs for example. Anyway I have had my 2 cents, if someone is contributing more than I know, and this wasn't intended to dimnish anyone's effort, just wanting to look to growing and fostering a stronger python community. Well, I can only comment from the Pydev side here, but do you think it'd be worth reinventing all that's already done in it just for having it in Python? When I started contributing to Pydev back in 2004 I didn't go that way because Eclipse itself has a huge community that's already in place and is properly maintained, which takes a lot of effort, so, I'm not sure it'd be worth reproducing all that just to have it 100% Python code -- I say 100% because Pydev does have a number of things that are in Python, such as the debugger and Jython for the scripting engine, although the major portion is really in java. Another important aspect is that it's much better if
Re: GUI Tools for Python 3.1
On Dec 26 2010, 8:41 pm, Hans-Peter Jansen h...@urpla.net wrote: On Friday 24 December 2010, 03:58:15 Randy Given wrote: Lots of stuff for 2.6 and 2.7 -- what GUI tools are there for 3.1? PyQt4 of course. http://www.riverbankcomputing.com Pete Pyside, Nokia have split with riverbank computing and are quickly developing pyside. Currently not supported in Py3000 but have already a roadmap for implementation when they finalise Python 2 support. Here is what they see as roadblocks(not insurmountble) to python3. http://developer.qt.nokia.com/wiki/PySide_Python_3_Issues -- http://mail.python.org/mailman/listinfo/python-list
Python - NAWIT / Community
I just wanted to put out a question about IDE's but this is NAWIT - not another which ide thread. My question relates to community contribution. My concern arose when recently installing the pydev.org extensions in Eclipse. Now as far as my understanding goes the licensing on both is open source GPL. However Pydev became open source as part of aptana's acquistion, and for the moment pydev can be installed as part of the Aptana studio 2/3 releases individually as a plugin, but moving on if you vist the aptana site there is sweet little about python on their site, their site is dominated by Radrails. Can't help thinking they open sourced Pydev so they could bench it. So I started thinking that the only consistent env each python person has is idle as it ships in the install. Sometimes we can contribute with money and sometimes with time, if I was to contribute money to ensure that I and all new coming python programmers could have a first class development environment to use what would I donate to? At the moment no particular group seems applicable. Is pydev actively being developed and for who? SPE is a great idea but is Stan still developing? Pyscripter is good but not 64 capable. Plus none of these projects seem community centric. Maybe its just my wish, maybe something already exists, but to my mind why is there not a central python community ide or plugin setup like pydev or using pydev(since currently it is very good - to me), which I know or at least could confidently donate time or money to further python. This could apply to many python area's does python use easy_install or pypm, well if you want camelot or zope (unless you have business edition) its easy_install, but you wont find an ide with built in egg or pypm support? Why every Ruby ide has gems manager, and for that fact look at netbeans, the ide is good but support for python is mentioned on a far flung community page where some developers are trying to maintain good python support. PS they seem to be doing a good job, but a review of the mailing list archives shows little activity. One could say that activestate puts in good support but then they do not provide an ide within the means of the average part time person retailing its main edition at over $300, Pycharm a good ide at $99 but then where is my money going. I think a community plugin architecture which contained components like pydev, pyscripter, eclipse and eggs/pypm packages would give a place I can contribute time as my skills grow and confidently donate money knowing I am assisting the development of community tools and packages we all can use. No need to reinvent the wheel most things already exist, for example apt-get rpm style package management time tested and could be easily used to manage python eggs for example. Anyway I have had my 2 cents, if someone is contributing more than I know, and this wasn't intended to dimnish anyone's effort, just wanting to look to growing and fostering a stronger python community. Sayth -- http://mail.python.org/mailman/listinfo/python-list
Re: Python - NAWIT / Community
On Dec 28, 10:16 pm, Adam Tauno Williams awill...@whitemice.org wrote: On Tue, 2010-12-28 at 02:26 -0800, flebber wrote: Can't help thinking they open sourced Pydev so they could bench it. So? That isn't uncommon at all; to Open Source when you've moved on. I started thinking that the only consistent env each python person has is idle as it ships in the install. There is a plethora of Python IDE's [personally I use Monodevelop, which supports Python, and is fast and stable]. Sometimes we can contribute with money and sometimes with time, if I was to contribute money to ensure that I and all new coming python programmers could have a first class development environment to use what would I donate to? At the moment no particular group seems applicable. Many projects accept donations via PayPal. Sourceforge supports this. Is pydev actively being developed and for who? SPE is a great idea but is Stan still developing? Pyscripter is good but not 64 capable. Plus none of these projects seem community centric. Why not just check the repo and see the real answer for yourself? It is Open Source after all. https://github.com/aptana/Pydev/commits/master Maybe its just my wish, maybe something already exists, but to my mind why is there not a central python community ide or plugin setup like pydev or using pydev(since currently it is very good - to me), which I know or at least could confidently donate time or money to further python. You could checkout the code of any Python IDE and hack on it. I think a community plugin architecture which contained components like pydev, pyscripter, eclipse and eggs/pypm packages would give a place I can contribute time as my skills grow and confidently donate money knowing I am assisting the development of community tools and packages we all can use. So just do it. Yes you can answer questions, but have you really? Your answer seems to be things are open source so who cares about community. Many projects accept donations via PayPal. Sourceforge supports this. Of course any fool can throw his/her money away thats no challenge why even use Paypal, I could have fun and by 10 bottles of vino and hand them out to recovering alcoholics. Don't answer things just for the sake of it, if you have nothing producive to say about furthering python and its community then say that. -- http://mail.python.org/mailman/listinfo/python-list
Re: Python - NAWIT / Community
On Dec 28, 10:24 pm, flebber flebber.c...@gmail.com wrote: On Dec 28, 10:16 pm, Adam Tauno Williams awill...@whitemice.org wrote: On Tue, 2010-12-28 at 02:26 -0800, flebber wrote: Can't help thinking they open sourced Pydev so they could bench it. So? That isn't uncommon at all; to Open Source when you've moved on. I started thinking that the only consistent env each python person has is idle as it ships in the install. There is a plethora of Python IDE's [personally I use Monodevelop, which supports Python, and is fast and stable]. Sometimes we can contribute with money and sometimes with time, if I was to contribute money to ensure that I and all new coming python programmers could have a first class development environment to use what would I donate to? At the moment no particular group seems applicable. Many projects accept donations via PayPal. Sourceforge supports this. Is pydev actively being developed and for who? SPE is a great idea but is Stan still developing? Pyscripter is good but not 64 capable. Plus none of these projects seem community centric. Why not just check the repo and see the real answer for yourself? It is Open Source after all. https://github.com/aptana/Pydev/commits/master Maybe its just my wish, maybe something already exists, but to my mind why is there not a central python community ide or plugin setup like pydev or using pydev(since currently it is very good - to me), which I know or at least could confidently donate time or money to further python. You could checkout the code of any Python IDE and hack on it. I think a community plugin architecture which contained components like pydev, pyscripter, eclipse and eggs/pypm packages would give a place I can contribute time as my skills grow and confidently donate money knowing I am assisting the development of community tools and packages we all can use. So just do it. Yes you can answer questions, but have you really? Your answer seems to be things are open source so who cares about community. Many projects accept donations via PayPal. Sourceforge supports this. Of course any fool can throw his/her money away thats no challenge why even use Paypal, I could have fun and by 10 bottles of vino and hand them out to recovering alcoholics. Don't answer things just for the sake of it, if you have nothing producive to say about furthering python and its community then say that. My apologise I didn't mean to be that aggressive. -- http://mail.python.org/mailman/listinfo/python-list
Re: Python - NAWIT / Community
On Dec 28, 10:37 pm, Adam Tauno Williams awill...@whitemice.org wrote: On Tue, 2010-12-28 at 03:24 -0800, flebber wrote: On Dec 28, 10:16 pm, Adam Tauno Williams awill...@whitemice.org wrote: On Tue, 2010-12-28 at 02:26 -0800, flebber wrote: Is pydev actively being developed and for who? SPE is a great idea but is Stan still developing? Pyscripter is good but not 64 capable. Plus none of these projects seem community centric. Why not just check the repo and see the real answer for yourself? It is Open Source after all. https://github.com/aptana/Pydev/commits/master Yes you can answer questions, but have you really? Your answer seems to be things are open source so who cares about community. Many projects accept donations via PayPal. Sourceforge supports this. Of course any fool can throw his/her money away thats no challenge why even use Paypal, I could have fun and by 10 bottles of vino and hand them out to recovering alcoholics. Don't answer things just for the sake of it, if you have nothing producive to say about furthering python and its community then say that. I provided two concrete points, thank you: (1) Is a project actively developed? Look at the repo. That is the answer to the question [this isn't necessarily obvious to those new to Open Source]. (1.1.) Is PyDev a potential unifying force amoung IDEs? Which is the implied question - that is up to the OP and others who do/do-not contribute to it. (2) How can I donate cash? There is a fairly standard mechanism for that. Otherwise I think the OP's thoughts on community and how Open Source works are somewhat flawed. Community is a manifestation of people *doing* things; it does *not* arise out of people being concerned about things [since doing is quite apparently not a natural result of concern. Concern is like watching TV. Doing is getting out of the chair.] Fair point. You have mistaken somewhat what I intended, partly my fault due to the verbosity. I wanted gaugue feedback on others perception of the current status quo. I am happy personally currently, currently being the main word. Community is a manifestation of people *doing* things; it does *not* arise out of people being concerned about things But concern is derived from interaction and observation and like fear and joy tells us we need to take an action. If someone chooses to sir idly by good for them I haven't the time or inclination personally. Tony Robbins Acheiving a goal is simple, decide what your goal is, set out towards it and consistently review whether you are getting closer or further from your goal and take action immediately. From a language perspective going to python 3 this definitely seems to be occurring well and strongly lead. Sometimes the fault in open source is the lack of a crystalized and shared goal and proper infrastructure.Gentoo as an example. Could get to they were going because they didn't share the same vision of what it was. I meant no attack by reviewing, just a somewhat newbies observations of python. -- http://mail.python.org/mailman/listinfo/python-list
Re: Python - NAWIT / Community
On Dec 28, 11:10 pm, flebber flebber.c...@gmail.com wrote: On Dec 28, 10:37 pm, Adam Tauno Williams awill...@whitemice.org wrote: On Tue, 2010-12-28 at 03:24 -0800, flebber wrote: On Dec 28, 10:16 pm, Adam Tauno Williams awill...@whitemice.org wrote: On Tue, 2010-12-28 at 02:26 -0800, flebber wrote: Is pydev actively being developed and for who? SPE is a great idea but is Stan still developing? Pyscripter is good but not 64 capable. Plus none of these projects seem community centric. Why not just check the repo and see the real answer for yourself? It is Open Source after all. https://github.com/aptana/Pydev/commits/master Yes you can answer questions, but have you really? Your answer seems to be things are open source so who cares about community. Many projects accept donations via PayPal. Sourceforge supports this. Of course any fool can throw his/her money away thats no challenge why even use Paypal, I could have fun and by 10 bottles of vino and hand them out to recovering alcoholics. Don't answer things just for the sake of it, if you have nothing producive to say about furthering python and its community then say that. I provided two concrete points, thank you: (1) Is a project actively developed? Look at the repo. That is the answer to the question [this isn't necessarily obvious to those new to Open Source]. (1.1.) Is PyDev a potential unifying force amoung IDEs? Which is the implied question - that is up to the OP and others who do/do-not contribute to it. (2) How can I donate cash? There is a fairly standard mechanism for that. Otherwise I think the OP's thoughts on community and how Open Source works are somewhat flawed. Community is a manifestation of people *doing* things; it does *not* arise out of people being concerned about things [since doing is quite apparently not a natural result of concern. Concern is like watching TV. Doing is getting out of the chair.] Fair point. You have mistaken somewhat what I intended, partly my fault due to the verbosity. I wanted gaugue feedback on others perception of the current status quo. I am happy personally currently, currently being the main word. Community is a manifestation of people *doing* things; it does *not* arise out of people being concerned about things But concern is derived from interaction and observation and like fear and joy tells us we need to take an action. If someone chooses to sir idly by good for them I haven't the time or inclination personally. Tony Robbins Acheiving a goal is simple, decide what your goal is, set out towards it and consistently review whether you are getting closer or further from your goal and take action immediately. From a language perspective going to python 3 this definitely seems to be occurring well and strongly lead. Sometimes the fault in open source is the lack of a crystalized and shared goal and proper infrastructure.Gentoo as an example. Could get to they were going because they didn't share the same vision of what it was. I meant no attack by reviewing, just a somewhat newbies observations of python. Edit Gentoo couldn't get to where they were going because of lack of vision and a shared goal. -- http://mail.python.org/mailman/listinfo/python-list
Re: Fw: Re: User input masks - Access Style
On Dec 27, 7:57 pm, linmq li...@neusoft.com wrote:
On 2010-12-27, flebber flebber.c...@gmail.com wrote:
Is there anyay to use input masks in python? Similar to the function
found in access where a users input is limited to a type, length and
format.
So in my case I want to ensure that numbers are saved in a basic
format.
1) Currency so input limited to 000.00 eg 1.00, 2.50, 13.80 etc
Some GUIs provide this functionality or provide callbacks for validation
functions that can determine the validity of the input. ? don't know of
any modules that provide formatted input in a terminal. ?ost terminal
input functions just read from stdin (in this case a buffered line)
and output that as a string. ?t is easy enough to validate whether
terminal input is in the proper.
Your example time code might look like:
... import re
... import sys
...
... # get the input
... print(Please enter time in the format 'MM:SS:HH': , end=)
... timeInput = input()
...
... # validate the input is in the correct format (usually this would be in
... # loop that continues until the user enters acceptable data)
... if re.match(r'''^[0-9]{2}:[0-9]{2}:[0-9]{2}$''', timeInput) == None:
... ??print(I'm sorry, your input is improperly formated.)
... ??sys.exit(1)
...
... # break the input into its componets
... componets = timeInput.split(:)
... minutes = int(componets[0])
... seconds = int(componets[1])
... microseconds = int(componets[2])
...
... # output the time
... print(Your time is: + %02d % minutes + : + %02d % seconds +
: +
... ??%02d % microseconds)
Currency works the same way using validating it against:
r'''[0-9]+\.[0-9]{2}'''
For sports times that is time duration not a system or date times
should I assume that I would need to calculate a user input to a
decimal number and then recalculate it to present it to user?
I am not sure what you are trying to do or asking. ?ython provides time,
date, datetime, and timedelta objects that can be used for date/time
calculations, locale based formatting, etc. ?hat you use, if any, will
depend on what you are actually tring to accomplish. ?our example doesn't
really show you doing much with the time so it is difficult giving you any
concrete recommendations.
yes you are right I should have clarified. The time is a duration over
distance, so its a speed measure. Ultimately I will need to store the
times so I may need to use something likw sqlAlchemy but I am nowehere
near the advanced but I know that most Db's mysql, postgre etc don't
support time as a duration as such and i will probably need to store
it as a decimal and convert it back for the user.
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You can let a user to separately input the days, hours, minutes, etc.
And use the type timedelta to store the time duration:
datetime.timedelta([days[, seconds[, microseconds[, milliseconds[, minutes[,
hours[, weeks]]])
Beyond 2.7, you can use timedelta.total_seconds() to convert the time
duration to a number for database using. And later restore the number
back to timedelta by timedelta(seconds=?).
Refer
to:http://docs.python.org/library/datetime.html?highlight=timedelta#time...
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Very helpful thanks
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User input masks - Access Style
Is there anyay to use input masks in python? Similar to the function found in access where a users input is limited to a type, length and format. So in my case I want to ensure that numbers are saved in a basic format. 1) Currency so input limited to 000.00 eg 1.00, 2.50, 13.80 etc For sports times that is time duration not a system or date times should I assume that I would need to calculate a user input to a decimal number and then recalculate it to present it to user? So an example, sorry. import time #not sure if this is any use minute = input(How many minutes: ) seconds = input(How many seconds: ) Hundredths = input(how many Hundredths: ) # convert user input MyTime = (minute/60)+(seconds)+(Hundredths/1800) #Display to user assuming i had written a name and user # had retrieved it print([User], your time was), (MyTime/60:MyTime(MyTime-((MyTime/ 60)*60).(MyTime-(MyTime0))) ) -- http://mail.python.org/mailman/listinfo/python-list
Re: User input masks - Access Style
On Dec 27, 6:01 pm, Tim Harig user...@ilthio.net wrote:
On 2010-12-27, flebber flebber.c...@gmail.com wrote:
Is there anyay to use input masks in python? Similar to the function
found in access where a users input is limited to a type, length and
format.
So in my case I want to ensure that numbers are saved in a basic
format.
1) Currency so input limited to 000.00 eg 1.00, 2.50, 13.80 etc
Some GUIs provide this functionality or provide callbacks for validation
functions that can determine the validity of the input. I don't know of
any modules that provide formatted input in a terminal. Most terminal
input functions just read from stdin (in this case a buffered line)
and output that as a string. It is easy enough to validate whether
terminal input is in the proper.
Your example time code might look like:
... import re
... import sys
...
... # get the input
... print(Please enter time in the format 'MM:SS:HH': , end=)
... timeInput = input()
...
... # validate the input is in the correct format (usually this would be in
... # loop that continues until the user enters acceptable data)
... if re.match(r'''^[0-9]{2}:[0-9]{2}:[0-9]{2}$''', timeInput) == None:
... print(I'm sorry, your input is improperly formated.)
... sys.exit(1)
...
... # break the input into its componets
... componets = timeInput.split(:)
... minutes = int(componets[0])
... seconds = int(componets[1])
... microseconds = int(componets[2])
...
... # output the time
... print(Your time is: + %02d % minutes + : + %02d % seconds + : +
... %02d % microseconds)
Currency works the same way using validating it against:
r'''[0-9]+\.[0-9]{2}'''
For sports times that is time duration not a system or date times
should I assume that I would need to calculate a user input to a
decimal number and then recalculate it to present it to user?
I am not sure what you are trying to do or asking. Python provides time,
date, datetime, and timedelta objects that can be used for date/time
calculations, locale based formatting, etc. What you use, if any, will
depend on what you are actually tring to accomplish. Your example doesn't
really show you doing much with the time so it is difficult giving you any
concrete recommendations.
yes you are right I should have clarified. The time is a duration over
distance, so its a speed measure. Ultimately I will need to store the
times so I may need to use something likw sqlAlchemy but I am nowehere
near the advanced but I know that most Db's mysql, postgre etc don't
support time as a duration as such and i will probably need to store
it as a decimal and convert it back for the user.
--
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Design Ideals Goals Python 3 - Forest for the trees
Hi I was hoping someone could shed some (articles, links) in regards python 3 design ideals. I was searching guido's blog which has his overarching view of Python from an early development perspective http://python-history.blogspot.com/2009/01/pythons-design-philosophy.html . I was interested in what the design goals/philosphy was of Python 3 from a birds eye view, forest for the trees approach. i can safely assume one goal was speed improvement as in the blog he noted Don’t fret too much about performance--plan to optimize later when needed. So I assume that means that Python had developed to a point where that was needed. But performance wouldn't be the over-arching criteria for the change. Just curious. -- http://mail.python.org/mailman/listinfo/python-list
Re: Design Ideals Goals Python 3 - Forest for the trees
On Dec 26, 4:56 pm, Alice Bevan–McGregor al...@gothcandy.com wrote: I was interested in what the design goals/philosphy was of Python 3 from a birds eye view, forest for the trees approach. I think I can safely point to the Zen of Python[1] as many of the points therein directly apply to the simplifiation, clarification, and goals of Python 3. Most notably: :: Beautiful is better than ugly. E.g. dict.iteritems, dict.iterkeys, dict.itervalues? Strip 'iter' and it's fixed. :: Special cases aren't special enough to break the rules. Ever get hung up on core Python modules with title caps? Yeah, those are fixed. :: There should be one-- and preferably only one --obvious way to do it. E.g. urllib, urllib2, urllibX… yeah, that's been fixed, too. :) :: Namespaces are one honking great idea -- let's do more of those! Numerous modules have been merged, or moved into more manageable (and logical) namespaces. I can safely assume one goal was speed improvement as in the blog he noted Don’t fret too much about performance--plan to optimize later when needed. So I assume that means that Python had developed to a point where that was needed. The Python GIL (Global Interpreter Lock) has been getting a lot of negative attention over the last little while, and was recently fixed to be far more intelligent (and efficient) in Python 3.2. There are numerous other performance improvements, for which yo ucan examine the change logs. But performance wouldn't be the over-arching criteria for the change. Just curious. Clarification, simplification, specivity, efficiency, … just be more Pythonic. Note that I'm not a core Python contributor or have ever communicated with the BDFL: this is just the viewpoint of somoene doing her darnd'est to encourage Python 3 support. ;) All of the new projects I work on are Python 2.6+ and Python 3.1+ compatible. (Arguments against dual-compatible polygot code can go to /dev/null for the purposes of this thread.) - Alice [1]http://www.python.org/dev/peps/pep-0020/ So do the new changes(to the GIL) nullify concerns raised by David Beazely here http://dabeaz.com/python/UnderstandingGIL.pdf Some projects have been using and requiring psyco to gain speed improvements in python http://psyco.sourceforge.net/introduction.html however it seems that the developer is not active on this project anymore and is more active on PyPy http://codespeak.net/pypy/dist/pypy/doc/ A program such as AVSP http://avisynth.org/qwerpoi/ which relies on psyco what would be a good proposition to use when taking the project to python 3.0 if psyco will remain unavailable? -- http://mail.python.org/mailman/listinfo/python-list
Re: Light on Dark screen for Spe or Pyscripter
On Oct 9, 3:54 pm, flebber flebber.c...@gmail.com wrote: I was hoping someone knew how to setup pyscripter or Spe ide's with light on dark windows. I start to have trouble reading the nomal dark on light screens after any lengthy period. I have seen several screenshot showing emacs with python setup with awesome light on dark terminals but seems you need a degree in itself to get emacs and python working on windows with full features. Pyscripter does have a selectable theme option in its options menu. However seems to only relate to syntax colours and highlighting, doesn't seem to allow changing theme to light on dark. Anyhow still a good ide. -- http://mail.python.org/mailman/listinfo/python-list
Re: Crummy BS Script
On Oct 2, 4:24 pm, Steven D'Aprano st...@remove-this-
cybersource.com.au wrote:
On Fri, 01 Oct 2010 21:05:09 -0700, flebber wrote:
On Oct 2, 9:27 am, MRAB pyt...@mrabarnett.plus.com wrote:
On 01/10/2010 23:29, Burton Samograd wrote:
flebberflebber.c...@gmail.com writes:
But where is this saving the imported file and under what name?
Looks like samples.csv:
f = open('samples.csv', 'w')
It'll be in the current working directory, which is given by:
os.getcwd()
So how do I call the output to direct it to file? I can't see which part
to get.
I don't understand your question. What do you mean call the output --
you normally don't call the output, you call a function or program to get
output. The output is already directed to a file, as you were shown -- it
is written to the file samples.csv in the current directory.
Perhaps if you explain your question more carefully, we might be able to
help a little more.
--
Steven
How do change where output goes and what its called
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Re: Crummy BS Script
On Oct 3, 9:58 am, John Bokma j...@castleamber.com wrote:
flebber flebber.c...@gmail.com writes:
On Oct 2, 4:24 pm, Steven D'Aprano st...@remove-this-
cybersource.com.au wrote:
On Fri, 01 Oct 2010 21:05:09 -0700, flebber wrote:
On Oct 2, 9:27 am, MRAB pyt...@mrabarnett.plus.com wrote:
On 01/10/2010 23:29, Burton Samograd wrote:
flebberflebber.c...@gmail.com writes:
But where is this saving the imported file and under what name?
Looks like samples.csv:
f = open('samples.csv', 'w')
How do change where output goes and what its called
f = open('samples.csv', 'w')
were else? Maybe read a beginners book on Python before you start on a
path of Cargo Cult Coding?
--
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Blog:http://johnbokma.com/ Facebook:http://www.facebook.com/j.j.j.bokma
Freelance Perl Python Development:http://castleamber.com/
Cargo Cult Coding?
Not sure what it is but it sounds good.
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Re: Crummy BS Script
On Oct 3, 4:15 pm, flebber flebber.c...@gmail.com wrote:
On Oct 3, 9:58 am, John Bokma j...@castleamber.com wrote:
flebber flebber.c...@gmail.com writes:
On Oct 2, 4:24 pm, Steven D'Aprano st...@remove-this-
cybersource.com.au wrote:
On Fri, 01 Oct 2010 21:05:09 -0700, flebber wrote:
On Oct 2, 9:27 am, MRAB pyt...@mrabarnett.plus.com wrote:
On 01/10/2010 23:29, Burton Samograd wrote:
flebberflebber.c...@gmail.com writes:
But where is this saving the imported file and under what name?
Looks like samples.csv:
f = open('samples.csv', 'w')
How do change where output goes and what its called
f = open('samples.csv', 'w')
were else? Maybe read a beginners book on Python before you start on a
path of Cargo Cult Coding?
--
John Bokma j3b
Blog:http://johnbokma.com/ Facebook:http://www.facebook.com/j.j.j.bokma
Freelance Perl Python Development:http://castleamber.com/
Cargo Cult Coding?
Not sure what it is but it sounds good.
When I get an error from this when using Alan's site as a test this a
result of the script being unable to pass page elements isn't it?
http://www.freenetpages.co.uk/hp/alan.gauld/
Traceback (most recent call last):
File C:\Sayth\Scripts\BSScriptCrummy.py, line 38, in module
for ul in soup.html.body.findAll('ul'):
AttributeError: 'NoneType' object has no attribute 'findAll'
Script terminated.
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Crummy BS Script
I have a simple question regarding the Beuatiful soup crummy script.
The last line is f.write('%s, %s, %s, %s, %s \n' % (i, t[0], t[1],
t[2], t[3])), But where is this saving the imported file and under
what name?
#!/usr/bin/env python
# ogm-sampples.py
# Author: Matt Mayes
# March 11, 2008
-- This requires the Beautiful Soup mod:
http://www.crummy.com/software/BeautifulSoup/
--
Steps:
1. Identify all ul's that are preceded with 'font color=#3C378C
size=2' (which denotes a header here)
2. Pull that font text, and store as dictionary key
3. Extract all links and link text from the list, generate a link
title and type (pdf/html/404) store as tuples in
appropriate dict key (note that some list items contain more than 1
link, this handles it) If it's a 404, it will
not be added to the list.
4. Identify if it's linking to an HTML page or PDF
5. If it's a local pdf referenced by a root value (/file.pdf), it
strips the slash. Modify to suit your needs.
6. Generate a CSV file of results
import urllib2, re
from BeautifulSoup import BeautifulSoup
page = urllib2.urlopen(http://www.givegoodweb.com/examples/ogm-
samples.html)
soup = BeautifulSoup(page)
fontStart = re.compile(r'font[a-zA-Z-,0-9= ]*?')
fontEnd = re.compile(r'/font')
titleSearch = re.compile(r'title=')
getTitle = re.compile(r'title(.*)/title',re.DOTALL|re.MULTILINE)
emailSearch = re.compile(r'mailto')
def removeNL(x):
cleans a string of new lines and spaces
s = x.split('\n')
s = [x.strip() for x in s]
x = .join(s)
return x.lstrip()
ul_tags = {}
for ul in soup.html.body.findAll('ul'):
links = []
x = ul.findPrevious('font', color=#3C378C).renderContents()
if '\n' in x:
x = removeNL(x)
for li in ul.findAll('li'):
line = []
for a in li.findAll('a'):
c = removeNL(str(a.contents[0]))
c = fontStart.sub('', c)
c = fontEnd.sub('', c)
href = str(a.get('href'))
if href[-3:].lower() == 'pdf':
type = 'pdf'
title = PDF sample
elif emailSearch.search(href):
title = 'email'
else:
type = 'html'
try:
f = urllib2.urlopen(href)
# reading in 2000 characters should to
it
t = getTitle.search(f.read(2000))
if t :
title = t.group(1)
title = removeNL(title)
else : title = open link
except urllib2.HTTPError, e:
title = 404
f.close()
if title != 404:
line.append((c, href.lstrip('/'), type, title))
links.append(line)
ul_tags[x] = links
page.close()
f = open('samples.csv', 'w')
for i in ul_tags.iterkeys():
for x in ul_tags[i]:
for t in x:
f.write('%s, %s, %s, %s, %s \n' % (i, t[0], t[1], t[2],
t[3]))
f.close()
I got it from http://pastie.textmate.org/164503
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Re: Crummy BS Script
On Oct 2, 9:27 am, MRAB pyt...@mrabarnett.plus.com wrote:
On 01/10/2010 23:29, Burton Samograd wrote: flebberflebber.c...@gmail.com
writes:
But where is this saving the imported file and under what name?
Looks like samples.csv:
f = open('samples.csv', 'w')
It'll be in the current working directory, which is given by:
os.getcwd()
So how do I call the output to direct it to file? I can't see which
part to get.
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Re: Errors with PyPdf
On Sep 27, 2:46 pm, Dave Angel da...@ieee.org wrote:
On 2:59 PM, flebber wrote:
snip
Traceback (most recent call last):
File C:/Python26/Pdfread, line 16, inmodule
open('x.txt', 'w').write(content)
NameError: name 'content' is not defined
When i use.
import pyPdf
def getPDFContent(path):
content =C:\Components-of-Dot-NET.txt
# Load PDF into pyPDF
pdf =yPdf.PdfFileReader(file(path, rb))
# Iterate pages
for i in range(0, pdf.getNumPages()):
# Extract text from page and add to content
content +=df.getPage(i).extractText() + \n
# Collapse whitespace
content = .join(content.replace(u\xa0, ).strip().split())
return content
print getPDFContent(rC:\Components-of-Dot-NET.pdf).encode(ascii,
ignore)
open('x.txt', 'w').write(content)
There's no global variable content, that was local to the function. So
it's lost when the function exits. it does return the value, but you
give it to print, and don't save it anywhere.
data = getPDFContent(rC:\Components-of-Dot-NET.pdf).encode(ascii,
ignore)
outfile = open('x.txt', 'w')
outfile.write(data)
close(outfile)
I used a different name to emphasize that this is *not* the same
variable as content inside the function. In this case, it happens to
have the same value. And if you used the same name, you could be
confused about which is which.
DaveA
Thank You everyone.
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Errors with PyPdf
I was trying to use Pypdf following a recipe from the Activestate cookbooks. However I cannot get it too work. Unsure if it is me or it is beacuse sets are deprecated. I have placed a pdf in my C:\ drive. it is called Components-of-Dot- NET.pdf You could use anything I was just testing with it. I was using the last script on that page that was most recently updated. I am using python 2.6. http://code.activestate.com/recipes/511465-pure-python-pdf-to-text-converter/ import pyPdf def getPDFContent(path): content = C:\Components-of-Dot-NET.pdf # Load PDF into pyPDF pdf = pyPdf.PdfFileReader(file(path, rb)) # Iterate pages for i in range(0, pdf.getNumPages()): # Extract text from page and add to content content += pdf.getPage(i).extractText() + \n # Collapse whitespace content = .join(content.replace(u\xa0, ).strip().split()) return content print getPDFContent(Components-of-Dot-NET.pdf).encode(ascii, ignore) This is my error. Warning (from warnings module): File C:\Documents and Settings\Family\Application Data\Python \Python26\site-packages\pyPdf\pdf.py, line 52 from sets import ImmutableSet DeprecationWarning: the sets module is deprecated Traceback (most recent call last): File C:/Python26/Pdfread, line 15, in module print getPDFContent(Components-of-Dot-NET.pdf).encode(ascii, ignore) File C:/Python26/Pdfread, line 6, in getPDFContent pdf = pyPdf.PdfFileReader(file(path, rb)) IOError: [Errno 2] No such file or directory: 'Components-of-Dot- NET.pdf' -- http://mail.python.org/mailman/listinfo/python-list
Re: Errors with PyPdf
On Sep 27, 9:38 am, w.g.sned...@gmail.com w.g.sned...@gmail.com wrote: On Sep 26, 7:10 pm, flebber flebber.c...@gmail.com wrote: I was trying to use Pypdf following a recipe from the Activestate cookbooks. However I cannot get it too work. Unsure if it is me or it is beacuse sets are deprecated. I have placed a pdf in my C:\ drive. it is called Components-of-Dot- NET.pdf You could use anything I was just testing with it. I was using the last script on that page that was most recently updated. I am using python 2.6. http://code.activestate.com/recipes/511465-pure-python-pdf-to-text-co... import pyPdf def getPDFContent(path): content = C:\Components-of-Dot-NET.pdf # Load PDF into pyPDF pdf = pyPdf.PdfFileReader(file(path, rb)) # Iterate pages for i in range(0, pdf.getNumPages()): # Extract text from page and add to content content += pdf.getPage(i).extractText() + \n # Collapse whitespace content = .join(content.replace(u\xa0, ).strip().split()) return content print getPDFContent(Components-of-Dot-NET.pdf).encode(ascii, ignore) This is my error. Warning (from warnings module): File C:\Documents and Settings\Family\Application Data\Python \Python26\site-packages\pyPdf\pdf.py, line 52 from sets import ImmutableSet DeprecationWarning: the sets module is deprecated Traceback (most recent call last): File C:/Python26/Pdfread, line 15, in module print getPDFContent(Components-of-Dot-NET.pdf).encode(ascii, ignore) File C:/Python26/Pdfread, line 6, in getPDFContent pdf = pyPdf.PdfFileReader(file(path, rb)) --- IOError: [Errno 2] No such file or directory: 'Components-of-Dot- NET.pdf' Looks like a issue with finding the file. how do you pass the path? okay thanks I thought that when I set content here def getPDFContent(path): content = C:\Components-of-Dot-NET.pdf that i was defining where it is. but yeah I updated script to below and it works. That is the contents are displayed to the interpreter. How do I output to a .txt file? import pyPdf def getPDFContent(path): content = C:\Components-of-Dot-NET.pdf # Load PDF into pyPDF pdf = pyPdf.PdfFileReader(file(path, rb)) # Iterate pages for i in range(0, pdf.getNumPages()): # Extract text from page and add to content content += pdf.getPage(i).extractText() + \n # Collapse whitespace content = .join(content.replace(u\xa0, ).strip().split()) return content print getPDFContent(rC:\Components-of-Dot-NET.pdf).encode(ascii, ignore) -- http://mail.python.org/mailman/listinfo/python-list
Re: Errors with PyPdf
On Sep 27, 10:39 am, flebber flebber.c...@gmail.com wrote: On Sep 27, 9:38 am, w.g.sned...@gmail.com w.g.sned...@gmail.com wrote: On Sep 26, 7:10 pm, flebber flebber.c...@gmail.com wrote: I was trying to use Pypdf following a recipe from the Activestate cookbooks. However I cannot get it too work. Unsure if it is me or it is beacuse sets are deprecated. I have placed a pdf in my C:\ drive. it is called Components-of-Dot- NET.pdf You could use anything I was just testing with it. I was using the last script on that page that was most recently updated. I am using python 2.6. http://code.activestate.com/recipes/511465-pure-python-pdf-to-text-co... import pyPdf def getPDFContent(path): content = C:\Components-of-Dot-NET.pdf # Load PDF into pyPDF pdf = pyPdf.PdfFileReader(file(path, rb)) # Iterate pages for i in range(0, pdf.getNumPages()): # Extract text from page and add to content content += pdf.getPage(i).extractText() + \n # Collapse whitespace content = .join(content.replace(u\xa0, ).strip().split()) return content print getPDFContent(Components-of-Dot-NET.pdf).encode(ascii, ignore) This is my error. Warning (from warnings module): File C:\Documents and Settings\Family\Application Data\Python \Python26\site-packages\pyPdf\pdf.py, line 52 from sets import ImmutableSet DeprecationWarning: the sets module is deprecated Traceback (most recent call last): File C:/Python26/Pdfread, line 15, in module print getPDFContent(Components-of-Dot-NET.pdf).encode(ascii, ignore) File C:/Python26/Pdfread, line 6, in getPDFContent pdf = pyPdf.PdfFileReader(file(path, rb)) --- IOError: [Errno 2] No such file or directory: 'Components-of-Dot- NET.pdf' Looks like a issue with finding the file. how do you pass the path? okay thanks I thought that when I set content here def getPDFContent(path): content = C:\Components-of-Dot-NET.pdf that i was defining where it is. but yeah I updated script to below and it works. That is the contents are displayed to the interpreter. How do I output to a .txt file? import pyPdf def getPDFContent(path): content = C:\Components-of-Dot-NET.pdf # Load PDF into pyPDF pdf = pyPdf.PdfFileReader(file(path, rb)) # Iterate pages for i in range(0, pdf.getNumPages()): # Extract text from page and add to content content += pdf.getPage(i).extractText() + \n # Collapse whitespace content = .join(content.replace(u\xa0, ).strip().split()) return content print getPDFContent(rC:\Components-of-Dot-NET.pdf).encode(ascii, ignore) I have found far more advanced scripts searching around. But will have to keep trying as I cannot get an output file or specify the path. Edit very strangely whilst searching for examples I found my own post just written here ranking number 5 on google within 2 hours. Bizzare. http://www.eggheadcafe.com/software/aspnet/36237766/errors-with-pypdf.aspx Replicates our thread as thiers. I was searching ggole with pypdf return to txt file -- http://mail.python.org/mailman/listinfo/python-list
Re: Errors with PyPdf
On Sep 27, 12:08 pm, flebber flebber.c...@gmail.com wrote:
On Sep 27, 10:39 am, flebber flebber.c...@gmail.com wrote:
On Sep 27, 9:38 am, w.g.sned...@gmail.com w.g.sned...@gmail.com
wrote:
On Sep 26, 7:10 pm, flebber flebber.c...@gmail.com wrote:
I was trying to use Pypdf following a recipe from the Activestate
cookbooks. However I cannot get it too work. Unsure if it is me or it
is beacuse sets are deprecated.
I have placed a pdf in my C:\ drive. it is called Components-of-Dot-
NET.pdf You could use anything I was just testing with it.
I was using the last script on that page that was most recently
updated. I am using python 2.6.
http://code.activestate.com/recipes/511465-pure-python-pdf-to-text-co...
import pyPdf
def getPDFContent(path):
content = C:\Components-of-Dot-NET.pdf
# Load PDF into pyPDF
pdf = pyPdf.PdfFileReader(file(path, rb))
# Iterate pages
for i in range(0, pdf.getNumPages()):
# Extract text from page and add to content
content += pdf.getPage(i).extractText() + \n
# Collapse whitespace
content = .join(content.replace(u\xa0, ).strip().split())
return content
print getPDFContent(Components-of-Dot-NET.pdf).encode(ascii,
ignore)
This is my error.
Warning (from warnings module):
File C:\Documents and Settings\Family\Application Data\Python
\Python26\site-packages\pyPdf\pdf.py, line 52
from sets import ImmutableSet
DeprecationWarning: the sets module is deprecated
Traceback (most recent call last):
File C:/Python26/Pdfread, line 15, in module
print getPDFContent(Components-of-Dot-NET.pdf).encode(ascii,
ignore)
File C:/Python26/Pdfread, line 6, in getPDFContent
pdf = pyPdf.PdfFileReader(file(path, rb))
--- IOError: [Errno 2] No such file or directory: 'Components-of-Dot-
NET.pdf'
Looks like a issue with finding the file.
how do you pass the path?
okay thanks I thought that when I set content here
def getPDFContent(path):
content = C:\Components-of-Dot-NET.pdf
that i was defining where it is.
but yeah I updated script to below and it works. That is the contents
are displayed to the interpreter. How do I output to a .txt file?
import pyPdf
def getPDFContent(path):
content = C:\Components-of-Dot-NET.pdf
# Load PDF into pyPDF
pdf = pyPdf.PdfFileReader(file(path, rb))
# Iterate pages
for i in range(0, pdf.getNumPages()):
# Extract text from page and add to content
content += pdf.getPage(i).extractText() + \n
# Collapse whitespace
content = .join(content.replace(u\xa0, ).strip().split())
return content
print getPDFContent(rC:\Components-of-Dot-NET.pdf).encode(ascii,
ignore)
I have found far more advanced scripts searching around. But will have
to keep trying as I cannot get an output file or specify the path.
Edit very strangely whilst searching for examples I found my own post
just written here ranking number 5 on google within 2 hours. Bizzare.
http://www.eggheadcafe.com/software/aspnet/36237766/errors-with-pypdf...
Replicates our thread as thiers. I was searching ggole with pypdf
return to txt file
Traceback (most recent call last):
File C:/Python26/Pdfread, line 16, in module
open('x.txt', 'w').write(content)
NameError: name 'content' is not defined
When i use.
import pyPdf
def getPDFContent(path):
content = C:\Components-of-Dot-NET.txt
# Load PDF into pyPDF
pdf = pyPdf.PdfFileReader(file(path, rb))
# Iterate pages
for i in range(0, pdf.getNumPages()):
# Extract text from page and add to content
content += pdf.getPage(i).extractText() + \n
# Collapse whitespace
content = .join(content.replace(u\xa0, ).strip().split())
return content
print getPDFContent(rC:\Components-of-Dot-NET.pdf).encode(ascii,
ignore)
open('x.txt', 'w').write(content)
--
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Re: Errors with PyPdf
On Sep 27, 12:49 pm, MRAB pyt...@mrabarnett.plus.com wrote:
On 27/09/2010 01:39, flebber wrote:
On Sep 27, 9:38 am, w.g.sned...@gmail.comw.g.sned...@gmail.com
wrote:
On Sep 26, 7:10 pm, flebberflebber.c...@gmail.com wrote:
I was trying to use Pypdf following a recipe from the Activestate
cookbooks. However I cannot get it too work. Unsure if it is me or it
is beacuse sets are deprecated.
I have placed a pdf in my C:\ drive. it is called Components-of-Dot-
NET.pdf You could use anything I was just testing with it.
I was using the last script on that page that was most recently
updated. I am using python 2.6.
http://code.activestate.com/recipes/511465-pure-python-pdf-to-text-co...
import pyPdf
def getPDFContent(path):
content = C:\Components-of-Dot-NET.pdf
# Load PDF into pyPDF
pdf = pyPdf.PdfFileReader(file(path, rb))
# Iterate pages
for i in range(0, pdf.getNumPages()):
# Extract text from page and add to content
content += pdf.getPage(i).extractText() + \n
# Collapse whitespace
content = .join(content.replace(u\xa0, ).strip().split())
return content
print getPDFContent(Components-of-Dot-NET.pdf).encode(ascii,
ignore)
This is my error.
Warning (from warnings module):
File C:\Documents and Settings\Family\Application Data\Python
\Python26\site-packages\pyPdf\pdf.py, line 52
from sets import ImmutableSet
DeprecationWarning: the sets module is deprecated
Traceback (most recent call last):
File C:/Python26/Pdfread, line 15, inmodule
print getPDFContent(Components-of-Dot-NET.pdf).encode(ascii,
ignore)
File C:/Python26/Pdfread, line 6, in getPDFContent
pdf = pyPdf.PdfFileReader(file(path, rb))
--- IOError: [Errno 2] No such file or directory: 'Components-of-Dot-
NET.pdf'
Looks like a issue with finding the file.
how do you pass the path?
okay thanks I thought that when I set content here
def getPDFContent(path):
content = C:\Components-of-Dot-NET.pdf
that i was defining where it is.
but yeah I updated script to below and it works. That is the contents
are displayed to the interpreter. How do I output to a .txt file?
import pyPdf
def getPDFContent(path):
content = C:\Components-of-Dot-NET.pdf
That simply binds to a local name; 'content' is a local variable in the
function 'getPDFContent'.
# Load PDF into pyPDF
pdf = pyPdf.PdfFileReader(file(path, rb))
You're opening a file whose path is in 'path'.
# Iterate pages
for i in range(0, pdf.getNumPages()):
# Extract text from page and add to content
content += pdf.getPage(i).extractText() + \n
That appends to 'content'.
# Collapse whitespace
'content' now contains the text of the PDF, starting with
rC:\Components-of-Dot-NET.pdf.
content = .join(content.replace(u\xa0, ).strip().split())
return content
print getPDFContent(rC:\Components-of-Dot-NET.pdf).encode(ascii,
ignore)
Outputting to a .txt file is simple: open the file for writing using
'open', write the string to it, and then close it.
Thats what I was trying to do with
open('x.txt', 'w').write(content)
the rest of the script works it wont output the tect though
--
http://mail.python.org/mailman/listinfo/python-list
Python Macros's Not the Power in OOo they should be ?
I have recently been looking at openoffice because I saw it had support to use python Macro's. I thought this would provide OOo with a great advantage a fully powerful high level language as compared to VBA in Excel. I have found few docs on the subject. http://wiki.services.openoffice.org/wiki/Python_as_a_macro_language http://development.openoffice.org/ http://wiki.services.openoffice.org/wiki/Documentation/DevGuide/Scripting/Scripting_Framework Doesn't appear at the moment Python doesn't have the power in OOo it should. Has anyone had much success with python macro's. Or developing powerful macro's in an language? -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Macros's Not the Power in OOo they should be ?
On Sep 23, 10:41 am, flebber flebber.c...@gmail.com wrote: I have recently been looking at openoffice because I saw it had support to use python Macro's. I thought this would provide OOo with a great advantage a fully powerful high level language as compared to VBA in Excel. I have found few docs on the subject.http://wiki.services.openoffice.org/wiki/Python_as_a_macro_languagehttp://development.openoffice.org/http://wiki.services.openoffice.org/wiki/Documentation/DevGuide/Scrip... Doesn't appear at the moment Python doesn't have the power in OOo it should. Has anyone had much success with python macro's. Or developing powerful macro's in an language? I sort of expected they might have had jpython or javascript version of the excel VBA editor. -- http://mail.python.org/mailman/listinfo/python-list
Re: Python XML and tables using math
On Aug 16, 4:00 pm, Stefan Behnel stefan...@behnel.de wrote: flebber, 16.08.2010 05:30: I am looking at a project that will import and modify an XML file and then export it to a table. Currently a flat file table system should be fine. I want to export the modified data to the table and then perform a handful of maths(largely simple statistical functions) to the data and then print out the resultant modified tables. I was planning on using Python 2.7 for the project. Has anyone used a guide to acheive something similar? I would like to read up on it so I can assess my options and best methods, any hints or tips? That can usually be done in a couple of lines in Python. The approach I keep recommending is to use cElementTree (in the stdlib), potentially its iterparse() function if the file is too large to easily fit into memory, but the code won't change much either way. You might want to skip through this list a bit, similar questions have been coming up every couple of weeks. The responses often include mostly complete implementations that you can borrow from. Stefan okay I found http://effbot.org/zone/celementtree.htm so I will have a read through there. I have been creating an every expanding macro/VBA project in Excel and due to slightly changin source document - the header order changes - it causes the project to crash out. I was hoping python and XML may be a bit more robust. -- http://mail.python.org/mailman/listinfo/python-list
Python XML and tables using math
I am looking at a project that will import and modify an XML file and then export it to a table. Currently a flat file table system should be fine. I want to export the modified data to the table and then perform a handful of maths(largely simple statistical functions) to the data and then print out the resultant modified tables. I was planning on using Python 2.7 for the project. Has anyone used a guide to acheive something similar? I would like to read up on it so I can assess my options and best methods, any hints or tips? -- http://mail.python.org/mailman/listinfo/python-list
Re: Hello
On Jul 10, 8:49 pm, Dani Valverde dani.valve...@gmail.com wrote: geremy condra wrote: On Fri, Jul 9, 2010 at 1:08 PM, Dani Valverde dani.valve...@gmail.com wrote: Sorry, I forgot to mention that I am using Linux. In fact, my first test have been with gedit. Is there any way to directly run the Python code into the console? Gedit has a plugin that brings up a python intepreter. Edit-Preferences-Plugins-python console I think. Geremy Condra I have this plugin enabled, but I don't know how to send the code to the console... Dani -- Daniel Valverde Saubí c/Joan Maragall 37 4 2 17002 Girona Spain Telèfon mòbil: +34651987662 e-mail: dani.valve...@gmail.comhttp://www.acrocephalus.nethttp://natupics.blogspot.com Si no és del tot necessari, no imprimeixis aquest missatge. Si ho fas utilitza paper 100% reciclat i blanquejat sense clor. D'aquesta manera ajudaràs a estalviar aigua, energia i recursos forestals. GRÀCIES! Do not print this message unless it is absolutely necessary. If you must print it, please use 100% recycled paper whitened without chlorine. By doing so, you will save water, energy and forest resources. THANK YOU! dani_valverde.vcf 1KViewDownload A few good options. Editor: Notepad++ IDE: Pyscripter - Clean clear design easy to use. Eclipse/Pydev Cheers Sayth -- http://mail.python.org/mailman/listinfo/python-list
Re: Frameworks
On Oct 19, 7:40 pm, Javier Santana qualo...@gmail.com wrote: junohttp://github.com/breily/juno it's very easy, uses sqlalchemy as ORM and jinja2 (others can be used if you want) for templates. On Mon, Oct 19, 2009 at 10:24 AM, Bruno Desthuilliers bruno.42.desthuilli...@websiteburo.invalid wrote: flebber a écrit : Hi I have been searching through the vast array of python frameworks http://wiki.python.org/moin/WebFrameworksand its quite astounding the choice available. I am looking at using a web framework for my personal project which isn't actually aimed at developing a website as such. However I deduce that rather than creating a gui application and screen input for data, I can use a web browser for this and have a great array of tools to format input screens and output display formats. Yeps - but remember that a web app will have a couple limitations / drawbacks, specially wrt/ handling complex UI. Since I will be retreiving information from several websites (usually csv files) formatting them and submitting them to a database and creating queries and printouts based on them most frameworks seem to handle this basically with ease and for any complex queries most support SqlAlchemy. Is it simply a case of just picking one and starting and I would find it hard to be dissapointed or is there a few special considerations to make, though I am unsure what they are? Given your specs, forget about monstruosities like Zope, Twisted etc, that will mostly get in the way. You have simple needs, use a simple tool !-) Most obvious ones I am considering are Django (Of course), A pretty good framework, but you'll loose some of it's nice features if you ever want to use an alternate DB layer or templating system. OTHO, most other more flexible frameworks just don't offer this level of integration, so it's may not be such a big deal. Note that Django's ORM, while already pretty good and constently improving, is not as powerful as SLQAlchemy (now nothing prevents you from going down to raw SQL for the more complex queries - and this might be better anyway, since complex queries usually requires to be very fine tuned and tend to not be really portable). The Forms API OTHO is a real winner IMHO. Pylons includes SqlAlchemy, Sql Object and templating and I here turbogears plans to sit on top of this platform. I admit I fail to see what TG brings except for more indirection levels. Zope I am considering but I am a little confused by this. Friendly advice (based on years of working experience): don't waste your time with Zope. The are heaps of others but not sure how to narrow the selection criteria. How/Why woul you split Django and Pylons let alone the others? Django : very strong integration, excellent documentation and support, huge community, really easy to get started with. And possibly a bit more mature and stable... Pylons : more loosely coupled (imply: less integration), based on standard components - which is both a blessing and a curse, specially wrt/ documentation -, requires a good knowledge of Python and the HTTP protocol to get started with. Very powerful and flexible but this comes with a price... Now both are written by talented programmers, and both are pretty good tools. I guess it's more a matter of personal preferences and/or external constraints (PHB etc...) than anything else. A couple other lightweight candidates you migh want to consider are werkzeug and web.py: http://werkzeug.pocoo.org/ http://webpy.org/ Database likely to be MySQl Mmmm If your application is write-heavy, PostgreSQL might be a better choice. Anyway, both Django's ORM and SQLAlchemy work fine with MySQL AFAICT. -- http://mail.python.org/mailman/listinfo/python-list After further reading Django does indeed cover a lot of bases. When looking at jinja2 and werkzueg, first thing I noticed is that they are by the same group called pocoo. Second it shows that I must be misunderstanding something, can I really use jinja2 and sqlAlchemy by itself? The werkzeug documentation shows a screencast http://werkzeug.pocoo.org/wiki30/ of making a wiki and uses werkzueg, jinja2 and sqlAlchemy, why werkzueg and jinja2 in combination? And pylons advises use of SqlAlchemy and Mako or choices of Genshi and Jinja2, so what is pylons adding? Might have to do a bit more reading and watch a few more screencasts :-) -- http://mail.python.org/mailman/listinfo/python-list
Re: Frameworks
On Oct 19, 10:51 pm, flebber flebber.c...@gmail.com wrote: On Oct 19, 7:40 pm, Javier Santana qualo...@gmail.com wrote: junohttp://github.com/breily/juno it's very easy, uses sqlalchemy as ORM and jinja2 (others can be used if you want) for templates. On Mon, Oct 19, 2009 at 10:24 AM, Bruno Desthuilliers bruno.42.desthuilli...@websiteburo.invalid wrote: flebber a écrit : Hi I have been searching through the vast array of python frameworks http://wiki.python.org/moin/WebFrameworksandits quite astounding the choice available. I am looking at using a web framework for my personal project which isn't actually aimed at developing a website as such. However I deduce that rather than creating a gui application and screen input for data, I can use a web browser for this and have a great array of tools to format input screens and output display formats. Yeps - but remember that a web app will have a couple limitations / drawbacks, specially wrt/ handling complex UI. Since I will be retreiving information from several websites (usually csv files) formatting them and submitting them to a database and creating queries and printouts based on them most frameworks seem to handle this basically with ease and for any complex queries most support SqlAlchemy. Is it simply a case of just picking one and starting and I would find it hard to be dissapointed or is there a few special considerations to make, though I am unsure what they are? Given your specs, forget about monstruosities like Zope, Twisted etc, that will mostly get in the way. You have simple needs, use a simple tool !-) Most obvious ones I am considering are Django (Of course), A pretty good framework, but you'll loose some of it's nice features if you ever want to use an alternate DB layer or templating system. OTHO, most other more flexible frameworks just don't offer this level of integration, so it's may not be such a big deal. Note that Django's ORM, while already pretty good and constently improving, is not as powerful as SLQAlchemy (now nothing prevents you from going down to raw SQL for the more complex queries - and this might be better anyway, since complex queries usually requires to be very fine tuned and tend to not be really portable). The Forms API OTHO is a real winner IMHO. Pylons includes SqlAlchemy, Sql Object and templating and I here turbogears plans to sit on top of this platform. I admit I fail to see what TG brings except for more indirection levels. Zope I am considering but I am a little confused by this. Friendly advice (based on years of working experience): don't waste your time with Zope. The are heaps of others but not sure how to narrow the selection criteria. How/Why woul you split Django and Pylons let alone the others? Django : very strong integration, excellent documentation and support, huge community, really easy to get started with. And possibly a bit more mature and stable... Pylons : more loosely coupled (imply: less integration), based on standard components - which is both a blessing and a curse, specially wrt/ documentation -, requires a good knowledge of Python and the HTTP protocol to get started with. Very powerful and flexible but this comes with a price... Now both are written by talented programmers, and both are pretty good tools. I guess it's more a matter of personal preferences and/or external constraints (PHB etc...) than anything else. A couple other lightweight candidates you migh want to consider are werkzeug and web.py: http://werkzeug.pocoo.org/ http://webpy.org/ Database likely to be MySQl Mmmm If your application is write-heavy, PostgreSQL might be a better choice. Anyway, both Django's ORM and SQLAlchemy work fine with MySQL AFAICT. -- http://mail.python.org/mailman/listinfo/python-list After further reading Django does indeed cover a lot of bases. When looking at jinja2 and werkzueg, first thing I noticed is that they are by the same group called pocoo. Second it shows that I must be misunderstanding something, can I really use jinja2 and sqlAlchemy by itself? The werkzeug documentation shows a screencasthttp://werkzeug.pocoo.org/wiki30/ of making a wiki and uses werkzueg, jinja2 and sqlAlchemy, why werkzueg and jinja2 in combination? And pylons advises use of SqlAlchemy and Mako or choices of Genshi and Jinja2, so what is pylons adding? Might have to do a bit more reading and watch a few more screencasts :-) web2py is interesting the author appears to be implying(I could be misunderstanding this) that the web2py db ORM is equal to if not superior to SQLAlchemy - From http://www.web2py.com/AlterEgo/default/show/150 -- http://mail.python.org/mailman/listinfo/python-list
Re: Frameworks
On Oct 20, 12:32 am, Diez B. Roggisch de...@nospam.web.de wrote: web2py is interesting the author appears to be implying(I could be misunderstanding this) that the web2py db ORM is equal to if not superior to SQLAlchemy - From http://www.web2py.com/AlterEgo/default/show/150 I don't read that out of the post, and it almost certainly is wrong, at least on a general level. There isn't much above SQLAlchemy regarding flexibility power, so while simple cases might be simpler with other ORMs, they often make more complicated ones impossible. But again, I don't think that's the claim there. Diez That sounds fair. Bruno posted earlier Django : very strong integration, excellent documentation and support, huge community, really easy to get started with. And possibly a bit more mature and stable... Pylons : more loosely coupled (imply: less integration), based on standard components - which is both a blessing and a curse, specially wrt/ documentation -, requires a good knowledge of Python and the HTTP protocol to get started with. Very powerful and flexible but this comes with a price... Now both are written by talented programmers, and both are pretty good tools. I guess it's more a matter of personal preferences and/or external constraints (PHB etc...) than anything else. A couple other lightweight candidates you migh want to consider are werkzeug and web.py: http://werkzeug.pocoo.org/ http://webpy.org/ In short it seems to me that Django and Web2py include more magic in assisting oneself to create you web/application, whilst Pylons and Werkzueg leave more control in the users hands hopefully leading to greater expression and power. Pylons recommends SQLALchemy and Mako (offers Genshi and Jinja2) and Werkzueg SQLAlchemy and Jinja2. As I don't have the experience to tell the pro's cons of these two apart, would choosing Pylons based on Documentation be a fair call? -- http://mail.python.org/mailman/listinfo/python-list
Re: Frameworks
On Oct 20, 3:31 am, Massimo Di Pierro mdipie...@cs.depaul.edu wrote: Hello, Just to clarify. I did not make any statement about web2py is superior to SQLAlchemy since that is somewhat subjective. SQLALchemy for example does a much better job at accessing legacy databases. web2py is more limited in that respect and we are working on removing those limitations. I do believe web2py is easier to use than SQLAlchemy, is faster (but yet I do not know SQLAchemy to optimize it properly) and has many features in common with sqlaclhemy including connection pools, joins, left joins, aggregates, nested selects (I do not know SQLAlchemy well enough to know about advanced features that web2py may be missing). The web2py DAL works on Google App Engine while none of the other ORMs do. Massimo So does web2py allow for raw sql if there is an advanced procedure or query that needs to be performed that is outside the scope of the web2pr orm -- http://mail.python.org/mailman/listinfo/python-list
Re: Frameworks
On Oct 19, 10:01 am, flebber flebber.c...@gmail.com wrote: Hi I have been searching through the vast array of python frameworkshttp://wiki.python.org/moin/WebFrameworksand its quite astounding the choice available. I am looking at using a web framework for my personal project which isn't actually aimed at developing a website as such. However I deduce that rather than creating a gui application and screen input for data, I can use a web browser for this and have a great array of tools to format input screens and output display formats. Since I will be retreiving information from several websites (usually csv files) formatting them and submitting them to a database and creating queries and printouts based on them most frameworks seem to handle this basically with ease and for any complex queries most support SqlAlchemy. Is it simply a case of just picking one and starting and I would find it hard to be dissapointed or is there a few special considerations to make, though I am unsure what they are? Most obvious ones I am considering are Django (Of course), Pylons includes SqlAlchemy, Sql Object and templating and I here turbogears plans to sit on top of this platform. Zope I am considering but I am a little confused by this. The are heaps of others but not sure how to narrow the selection criteria. How/Why woul you split Django and Pylons let alone the others? Database likely to be MySQl I guess what makes it so interesting is that there appear to be so man high quality options. Its astounding. -- http://mail.python.org/mailman/listinfo/python-list
Re: Delete all list entries of length unknown
On Oct 5, 3:05 pm, Mark Tolonen metolone+gm...@gmail.com wrote: Chris Rebert c...@rebertia.com wrote in message news:50697b2c0910042047i1cf2c1a3mc388bc74bab95...@mail.gmail.com... Tuples are immutable (i.e. they cannot be modified after creation) and are created using parentheses. Slight correction: tuples are created using commas. Parentheses are only needed to disambiguate from other uses of comma: Python 2.6.2 (r262:71605, Apr 14 2009, 22:40:02) [MSC v.1500 32 bit (Intel)] on win32 Type help, copyright, credits or license for more information. a=1, a (1,) a=1,2,3 a (1, 2, 3) -Mark Awesome that has cleared it up for me, plus a bit more thanks. -- http://mail.python.org/mailman/listinfo/python-list
Delete all list entries of length unknown
Hi Can someone clear up how I can remove all entries of a list when I am unsure how many entries there will be. I have been using sandbox to play essentially I am creating two lists a and b I then want to add a to b and remove all b entries. This will loop and b will receive new entries add it to a and delete again. I am going wrong with slice and list deletion, I assign x = len(b) and then attempting to delete based on this. Here is my sandbox session. What part am I getting wrong? # a = (1, 2, 3, 4) b = (5, 6, 7, 8) # a #--- (1, 2, 3, 4) # b #--- (5, 6, 7, 8) # a + b #--- (1, 2, 3, 4, 5, 6, 7, 8) # b #--- (5, 6, 7, 8) # len(b) #--- 4 # x = len(b) # del b[0:x] Traceback (most recent call last): Error: File Shell, line 1, in module Error: TypeError: 'tuple' object does not support item deletion # b[0:x] = d Traceback (most recent call last): Error: File Shell, line 1, in module Error: NameError: name 'd' is not defined # -- http://mail.python.org/mailman/listinfo/python-list
Re: ActivePython 3.1.1.2 vs Python 3.1.1 for OSX?
On Oct 1, 11:28 am, srid sridhar.ra...@gmail.com wrote: On Sep 30, 4:51 pm, Robert Hicks sigz...@gmail.com wrote: I am just curious which I should use. I am going to start learning Python soon. Are they comparable and I just do a eenie meenie minie moe? ActivePython is essentially same as the installers from python.org - but it also comes with additional documentation and tutorials, such as: Python FAQs A snapshot of the Python Enhancement Proposals (PEPs) (For the most recent version, refer to the PEPs on python.org .) Dive Into Python (A tutorial for programmers) Non-Programmers Tutorial For Python http://docs.activestate.com/activepython/3.1/whatsincluded.html Also note that 2.6.x is probably the best bet if you are going to use some 3rd party libraries (after you learn the basics of Python) .. because 3.x does not have many of those libraries ported yet. http://www.activestate.com/activepython/ Further, early next week - a new release of ActivePython-2.6 will be made available that will include, for the first time, a new Python package manager (PyPM) from ActiveState that makes it easier to install packages from pypi.python.org(without having to compile them yourself). This is similar to PPM from ActivePerl. -srid Thats awesome news. -- http://mail.python.org/mailman/listinfo/python-list
Date using input
Sorry to ask a simple question but I am a little confused how to combine the input function and the date time module. Simply at the start of the program I want to prompt the user to enter the date, desirably in the format dd/mm/year. However I want to make sure that python understands the time format because first the date will form part of the name of the output file so dd/mm/year as 1st September 2009, secondly if I have multiple output files saved in a directory I may need to search later on the files and contents of files by date range. So can I timestamp the file? I know this is a simple question but it eludes me exactly how to do it. I have the basics from http://docs.python.org/library/datetime.html from datetime import date date = input(type date dd/mm/year: ) datetime(day,month,year) # some program blocks #print to file(name = date) or apphend if it exists -- http://mail.python.org/mailman/listinfo/python-list
Re: Re: Date using input
I am using python 2.6.2, I haven't updated to 3.0 yet. No I have no class or instructor, I am learning this myself. I have Hetlands book Beginning Python Novice to Professional and online documentation books so Dive into Python, python.org etc. Using the SPE editor. I have currently only fully written basic psuedocode to give me a basic framework to guide myself. #Basic pseudocode #Purpose to get raw input and calculate a score for a field of options and return that #score in a set in descending order. #Multiple sets sould be written to the doc #Obtain date #Check if txt file with same date exists. If yes apphend to results to file. #Obtain location #Set Dictionary #Event number #Obtain set size #Prompt first entry #First Entry Number #First Entry Name #Set Blocks to obtain and calculate data #Block 1 example - Placings Block #Obtain number of events competed in #Obtain how many times finished first #Ensure this value is not greater than Number of Events #Number of Firsts divide by Events * total by 15. #Obtain Second finishes #Ensure this value is not greater than Number of Events #Number of Seconds divide by Events * total by 10. #Continue On with this #Block 2 - Lookup coach Dict and apply value. #Obtain Surname of Coach #Lookup Coach File and Match Name and get value. #Blocks continue gaining and calculating values. #create txt file named using date #Sum Values Block1 + Block2 etc #Print to file event number and field with name number individual Block totals and Sum Total #Arranged in descending Sum Total. #Prompt are there any more events? Yes return to start #Apphend all additional events to same day file seperated by blank line. On Sep 24, 2009 9:59pm, Dave Angel da...@ieee.org wrote: flebber wrote: Sorry to ask a simple question but I am a little confused how to combine the input function and the date time module. Simply at the start of the program I want to prompt the user to enter the date, desirably in the format dd/mm/year. However I want to make sure that python understands the time format because first the date will form part of the name of the output file so dd/mm/year as 1st September 2009, secondly if I have multiple output files saved in a directory I may need to search later on the files and contents of files by date range. So can I timestamp the file? I know this is a simple question but it eludes me exactly how to do it. I have the basics from http://docs.python.org/library/datetime.html from datetime import date date = input(type date dd/mm/year: ) datetime(day,month,year) # some program blocks #print to file(name = date) or apphend if it exists What version of python is your class, instructor, and text book using? If you want to learn fastest, you probably need to be using the same, or nearly same environment. The input() function is one place where it matters whether it's Python 2.x or Python 3.x. While you're at it, you should give the rest of your environment, such as which OS. The doc page you pointed us to is for Python 2.6.2, but the input function on that version returns an integer. Perhaps you want raw_input() ? What code have you written, and what about it doesn't work? Have you added print statements before the line that causes the error to see what the intermediate values are? To try to anticipate some of your problems, you should realize that in most file systems, the slash is a reserved character, so you can't write the date that way. I'd suggest using dashes. I put dates in directory names, and I always put year, then month, then day, because then sorting the filenames also sorts the dates. I'm not in a country that sorts dates that way, but it does make things easier. So directories for the last few days would be: 2009-09-22 2009-09-23 2009-09-24 When asking the user for a date, or telling him a date, by all means use your country's preferred format, as you say. You mention timestamping the file. While that can be done (Unix touch, for example), I consider it a last resort for keeping track of useful information. At best, it should be an extra reminder of something that's already in the file contents. And since many programs make the assumption that if the timestamp doesn't change, the contents haven't changed, you can only reasonably do this on a file whose contents are fixed when first created. If you control the internal format of the file, put the date there, perhaps right after the header which defines the data type and version. -- http://mail.python.org/mailman/listinfo/python-list
Re: Date using input
On Sep 24, 10:58 pm, Dave Angel da...@ieee.org wrote: flebber.c...@gmail.com wrote: I am using python 2.6.2, I haven't updated to 3.0 yet. No I have no class or instructor, I am learning this myself. I have Hetlands book Beginning Python Novice to Professional and online documentation books so Dive into Python, python.org etc. Using the SPE editor. I have currently only fully written basic psuedocode to give me a basic framework to guide myself. #Basic pseudocode #Purpose to get raw input and calculate a score for a field of options and return that #score in a set in descending order. #Multiple sets sould be written to the doc #Obtain date #Check if txt file with same date exists. If yes apphend to results to file. #Obtain location #Set Dictionary #Event number #Obtain set size #Prompt first entry #First Entry Number #First Entry Name #Set Blocks to obtain and calculate data #Block 1 example - Placings Block #Obtain number of events competed in #Obtain how many times finished first #Ensure this value is not greater than Number of Events #Number of Firsts divide by Events * total by 15. #Obtain Second finishes #Ensure this value is not greater than Number of Events #Number of Seconds divide by Events * total by 10. #Continue On with this #Block 2 - Lookup coach Dict and apply value. #Obtain Surname of Coach #Lookup Coach File and Match Name and get value. #Blocks continue gaining and calculating values. #create txt file named using date #Sum Values Block1 + Block2 etc #Print to file event number and field with name number individual Block totals and Sum Total #Arranged in descending Sum Total. #Prompt are there any more events? Yes return to start #Apphend all additional events to same day file seperated by blank line. How many of these steps have you attempted actually coding? Seems to me your first two steps are just string manipulation, and you only need to use the datetime module if you need to validate. In other words, if the user specifies the date as 31/09/2009, you might want to later bounce back to him with a complaint that September only has 30 days. So the first task is to accept input in the form ab/cd/efgh and produce a string efgh-cd-ab.log which you will then create as a text file. And if the file exists, you'll append to it instead of overwriting it. Can you do that much? DaveA Trying but haven't got it working, thats why I started to try and use datetime module. -- http://mail.python.org/mailman/listinfo/python-list
Re: Date using input
On Sep 24, 11:10 pm, flebber flebber.c...@gmail.com wrote: On Sep 24, 10:58 pm, Dave Angel da...@ieee.org wrote: flebber.c...@gmail.com wrote: I am using python 2.6.2, I haven't updated to 3.0 yet. No I have no class or instructor, I am learning this myself. I have Hetlands book Beginning Python Novice to Professional and online documentation books so Dive into Python, python.org etc. Using the SPE editor. I have currently only fully written basic psuedocode to give me a basic framework to guide myself. #Basic pseudocode #Purpose to get raw input and calculate a score for a field of options and return that #score in a set in descending order. #Multiple sets sould be written to the doc #Obtain date #Check if txt file with same date exists. If yes apphend to results to file. #Obtain location #Set Dictionary #Event number #Obtain set size #Prompt first entry #First Entry Number #First Entry Name #Set Blocks to obtain and calculate data #Block 1 example - Placings Block #Obtain number of events competed in #Obtain how many times finished first #Ensure this value is not greater than Number of Events #Number of Firsts divide by Events * total by 15. #Obtain Second finishes #Ensure this value is not greater than Number of Events #Number of Seconds divide by Events * total by 10. #Continue On with this #Block 2 - Lookup coach Dict and apply value. #Obtain Surname of Coach #Lookup Coach File and Match Name and get value. #Blocks continue gaining and calculating values. #create txt file named using date #Sum Values Block1 + Block2 etc #Print to file event number and field with name number individual Block totals and Sum Total #Arranged in descending Sum Total. #Prompt are there any more events? Yes return to start #Apphend all additional events to same day file seperated by blank line. How many of these steps have you attempted actually coding? Seems to me your first two steps are just string manipulation, and you only need to use the datetime module if you need to validate. In other words, if the user specifies the date as 31/09/2009, you might want to later bounce back to him with a complaint that September only has 30 days. So the first task is to accept input in the form ab/cd/efgh and produce a string efgh-cd-ab.log which you will then create as a text file. And if the file exists, you'll append to it instead of overwriting it. Can you do that much? DaveA Trying but haven't got it working, thats why I started to try and use datetime module. Surely getting it tottally mixed up from datetime import date def ObtainDate(params): date = raw_input(Type Date dd/mm/year: %2.0r%2.0r/%2.0r%2.0r/%4.0r %4.0r%4.0r%4.0r) print date.datetime(year-month-day) #Check if txt file with same date exists. If yes apphend to results to file. date.append(datetime and def ObtainDate(params): date = raw_input(Type Date dd/mm/year: ) date.format = (%4.0s%4.0s%4.0s%4.0s-%2.0s%2.0s-%2.0s) print date.format -- http://mail.python.org/mailman/listinfo/python-list
Re: Re: Date using input
Okay, thanks for the advice that sounds a good place to start. I used %2.os was an attempt to define width and precision to stop typo errors eg the user accidentally inputing 101/09/2009 or similar error. So that the __/__/ was adhered to. I will go back to the start get the basics happening and then figure out a way to catch errors with format and correctness. Thanks On Sep 25, 2009 3:57am, Dave Angel da...@ieee.org wrote: flebber wrote: On Sep 24, 11:10 pm, flebber flebber.c...@gmail.com wrote: On Sep 24, 10:58 pm, Dave Angel da...@ieee.org wrote: flebber.c...@gmail.com wrote: I am using python 2.6.2, I haven't updated to 3.0 yet. No I have no class or instructor, I am learning this myself. I have Hetlands book Beginning Python Novice to Professional and online documentation books so Dive into Python, python.org etc. Using the SPE editor. I have currently only fully written basic psuedocode to give me a basic framework to guide myself. #Basic pseudocode #Purpose to get raw input and calculate a score for a field of options and return that #score in a set in descending order. #Multiple sets sould be written to the doc #Obtain date #Check if txt file with same date exists. If yes apphend to results to file. #Obtain location #Set Dictionary #Event number #Obtain set size #Prompt first entry #First Entry Number #First Entry Name #Set Blocks to obtain and calculate data #Block 1 example - Placings Block #Obtain number of events competed in #Obtain how many times finished first #Ensure this value is not greater than Number of Events #Number of Firsts divide by Events * total by 15. #Obtain Second finishes #Ensure this value is not greater than Number of Events #Number of Seconds divide by Events * total by 10. #Continue On with this #Block 2 - Lookup coach Dict and apply value. #Obtain Surname of Coach #Lookup Coach File and Match Name and get value. #Blocks continue gaining and calculating values. #create txt file named using date #Sum Values Block1 + Block2 etc #Print to file event number and field with name number individual Block totals and Sum Total #Arranged in descending Sum Total. #Prompt are there any more events? Yes return to start #Apphend all additional events to same day file seperated by blank line. How many of these steps have you attempted actually coding? Seems to me your first two steps are just string manipulation, and you only need to use the datetime module if you need to validate. In other words, if the user specifies the date as 31/09/2009, you might want to later bounce back to him with a complaint that September only has 30 days. So the first task is to accept input in the form ab/cd/efgh and produce a string efgh-cd-ab.log which you will then create as a text file. And if the file exists, you'll append to it instead of overwriting it. Can you do that much? DaveA Trying but haven't got it working, thats why I started to try and use datetime module. Surely getting it tottally mixed up from datetime import date def ObtainDate(params): date =aw_input(Type Date dd/mm/year: %2.0r%2.0r/%2.0r%2.0r/%4.0r %4.0r%4.0r%4.0r) print date.datetime(year-month-day) #Check if txt file with same date exists. If yes apphend to results to file. date.append(datetime and def ObtainDate(params): date =aw_input(Type Date dd/mm/year: ) date.format =%4.0s%4.0s%4.0s%4.0s-%2.0s%2.0s-%2.0s) print date.format As Tim says, first thing you want to do is rename that variable. You've defined two symbols with the same name. Then I'd ask what that %2.0r stuff is inside the prompt to the user. Do you understand what kind of data is returned by raw_input() ? If so, look at the available methods of that type, and see if there's one called split() that you can use to separate out the multiple parts of the user's response. You want to separate the dd from the mm and from the year. Once you've split the text, then you want to recombine it in a different order, and with dashes between the parts. If I were at your stage of experience, I'd not bother with the datetime module at all. Just see if you can rebuild the string you need, assuming the user has entered a valid 10-character string. Later you can go back and figure out the datetime logic. DaveA -- http://mail.python.org/mailman/listinfo/python-list
Re: Re: Re: Date using input
I don't think I am using re.compile properly, but thought as this would
make my output an object it would be better for later, is that correct?
#Obtain date
def ObtainDate(date):
date = raw_input(Type Date dd/mm/year: )
re.split('[/]+', date)
date
year = date[-1]
month = date[1]
day = date[0]
re.compile('year-month-day')
On Sep 25, 2009 8:32am, flebber.c...@gmail.com wrote:
Okay, thanks for the advice that sounds a good place to start. I
used %2.os was an attempt to define width and precision to stop typo
errors eg the user accidentally inputing 101/09/2009 or similar error. So
that the __/__/ was adhered to.
I will go back to the start get the basics happening and then figure out
a way to catch errors with format and correctness.
Thanks
On Sep 25, 2009 3:57am, Dave Angel da...@ieee.org wrote:
flebber wrote:
On Sep 24, 11:10 pm, flebber flebber.c...@gmail.com wrote:
On Sep 24, 10:58 pm, Dave Angel da...@ieee.org wrote:
flebber.c...@gmail.com wrote:
I am using python 2.6.2, I haven't updated to 3.0 yet. No I have no
class or instructor, I am learning this myself. I have Hetlands book
Beginning Python Novice to Professional and online documentation
books so Dive into Python, python.org etc.
Using the SPE editor.
I have currently only fully written basic psuedocode to give me a
basic framework to guide myself.
#Basic pseudocode
#Purpose to get raw input and calculate a score for a field of options
and return that
#score in a set in descending order.
#Multiple sets sould be written to the doc
#Obtain date
#Check if txt file with same date exists. If yes apphend to results to
file.
#Obtain location
#Set Dictionary
#Event number
#Obtain set size
#Prompt first entry
#First Entry Number
#First Entry Name
#Set Blocks to obtain and calculate data
#Block 1 example - Placings Block
#Obtain number of events competed in
#Obtain how many times finished first
#Ensure this value is not greater than Number of Events
#Number of Firsts divide by Events * total by 15.
#Obtain Second finishes
#Ensure this value is not greater than Number of Events
#Number of Seconds divide by Events * total by 10.
#Continue On with this
#Block 2 - Lookup coach Dict and apply value.
#Obtain Surname of Coach
#Lookup Coach File and Match Name and get value.
#Blocks continue gaining and calculating values.
#create txt file named using date
#Sum Values Block1 + Block2 etc
#Print to file event number and field with name number individual
Block totals and Sum Total
#Arranged in descending Sum Total.
#Prompt are there any more events? Yes return to start
#Apphend all additional events to same day file seperated by blank line.
How many of these steps have you attempted actually coding? Seems to me
your first two steps are just string manipulation, and you only need to
use the datetime module if you need to validate. In other words, if the
user specifies the date as 31/09/2009, you might want to later bounce
back to him with a complaint that September only has 30 days.
So the first task is to accept input in the form ab/cd/efgh and
produce a string efgh-cd-ab.log which you will then create as a text
file. And if the file exists, you'll append to it instead of
overwriting it. Can you do that much?
DaveA
Trying but haven't got it working, thats why I started to try and use
datetime module.
Surely getting it tottally mixed up
from datetime import date
def ObtainDate(params):
date =aw_input(Type Date dd/mm/year: %2.0r%2.0r/%2.0r%2.0r/%4.0r
%4.0r%4.0r%4.0r)
print date.datetime(year-month-day)
#Check if txt file with same date exists. If yes apphend to results
to file.
date.append(datetime
and
def ObtainDate(params):
date =aw_input(Type Date dd/mm/year: )
date.format =%4.0s%4.0s%4.0s%4.0s-%2.0s%2.0s-%2.0s)
print date.format
As Tim says, first thing you want to do is rename that variable. You've
defined two symbols with the same name.
Then I'd ask what that %2.0r stuff is inside the prompt to the user.
Do you understand what kind of data is returned by raw_input() ? If so,
look at the available methods of that type, and see if there's one called
split() that you can use to separate out the multiple parts of the user's
response. You want to separate the dd from the mm and from the year.
Once you've split the text, then you want to recombine it in a
different order, and with dashes between the parts. If I were at your
stage of experience, I'd not bother with the datetime module at all. Just
see if you can rebuild the string you need, assuming the user has entered
a valid 10-character string.
Later you can go back and figure out the datetime logic.
DaveA
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Number Sequencing, Grouping and Filtering
Hi I was hoping someone would be able to point me in the direction of some good documentation regarding sequencing, grouping and filtering and in which order they should be done. As a small example it is easy to create the range of numbers 1 to 20. But if I wanted to group all possible combinations of sets of 4 numbers within this range is there already an in uilt function for this I am searching the module docs with number sequencing and number grouping but cannot find info. Then if I wanted to refine this results further eg no consecutive numbers to be contained in sets. Is it best to create all sets and then filter the sets for things matching this criteria or to set this condition in a creation. Creating sets and then filtering would soon become unwieldy with a larger range I would imagine.. An ideas, pointers to docs or better search terms to help me explore this further would be appreciated. Thanks Sayth -- http://mail.python.org/mailman/listinfo/python-list
Re: Number Sequencing, Grouping and Filtering
On Mar 10, 8:54 pm, flebber flebber.c...@gmail.com wrote: Hi I was hoping someone would be able to point me in the direction of some good documentation regarding sequencing, grouping and filtering and in which order they should be done. As a small example it is easy to create the range of numbers 1 to 20. But if I wanted to group all possible combinations of sets of 4 numbers within this range is there already an in uilt function for this I am searching the module docs with number sequencing and number grouping but cannot find info. Then if I wanted to refine this results further eg no consecutive numbers to be contained in sets. Is it best to create all sets and then filter the sets for things matching this criteria or to set this condition in a creation. Creating sets and then filtering would soon become unwieldy with a larger range I would imagine.. An ideas, pointers to docs or better search terms to help me explore this further would be appreciated. Thanks Sayth I have just found itertools is this acheivable using combinations() and groupby() in itertools? -- http://mail.python.org/mailman/listinfo/python-list
Re: Number Sequencing, Grouping and Filtering
On Mar 10, 9:07 pm, Chris Rebert c...@rebertia.com wrote: On Tue, Mar 10, 2009 at 3:00 AM, flebber flebber.c...@gmail.com wrote: On Mar 10, 8:54 pm, flebber flebber.c...@gmail.com wrote: Hi I was hoping someone would be able to point me in the direction of some good documentation regarding sequencing, grouping and filtering and in which order they should be done. As a small example it is easy to create the range of numbers 1 to 20. But if I wanted to group all possible combinations of sets of 4 numbers within this range is there already an in uilt function for this I am searching the module docs with number sequencing and number grouping but cannot find info. Then if I wanted to refine this results further eg no consecutive numbers to be contained in sets. Is it best to create all sets and then filter the sets for things matching this criteria or to set this condition in a creation. Creating sets and then filtering would soon become unwieldy with a larger range I would imagine.. An ideas, pointers to docs or better search terms to help me explore this further would be appreciated. Thanks Sayth I have just found itertools is this acheivable using combinations() and groupby() in itertools? Yes; indeed, those were the functions your post brought to mind and which led me to suggest itertools. Cheers, Chris -- I have a blog:http://blog.rebertia.com the only issue i can see is that i am using python 2.54 currently as ifelt it more supported by other programs than 2.6 or 3.0. After searching it seems that itertools has had a upgrade in 2.61 -- http://mail.python.org/mailman/listinfo/python-list
Re: read xml file from compressed file using gzip
On Jun 10, 7:43 pm, John Machin [EMAIL PROTECTED] wrote:
On 10/06/2007 3:06 PM, flebber wrote:
On Jun 10, 3:45 am, Stefan Behnel [EMAIL PROTECTED] wrote:
flebber wrote:
I was working at creating a simple program that would read the content
of a playlist file( in this case *.k3b) and write it out . the
compressed *.k3b file has two file and the one I was trying to read
was maindata.xml
The k3b format is a ZIP archive. Use the zipfile library:
file:///usr/share/doc/python2.5-doc/html/lib/module-zipfile.html
Stefan
Thanks for all the help, have been using the docs at python.org and
the magnus t Hetland book. Is there any docs tha re a little more
practical or expressive as most of the module documentation is very
confusing for a beginner and doesn't provide much in the way of
examples on how to use the modules.
Not criticizing the docs as they are probably very good for
experienced programmers.
Somebody else has already drawn your attention to the/a tutorial. You
need to read, understand, and work through a *good* introductory book or
tutorial before jumping into the deep end.
class GzipFile([playlist_file[decompress[9, 'rb']]]);
Errr, no, the [] are a documentation device used in most computer
language documentation to denote optional elements -- you don't type
them into your program. See below.
Secondly as Stefan pointed out, your file is a ZIP file (not a gzipped
file), they're quite different animals, so you need the zipfile module,
not the gzip module.
os.system(open(/home/flebber/tmp/maindata.xml));
The manuals say quite simply and clearly that:
open() returns a file object
os.system's arg is a string (a command, like grep -i fubar *.pl)
So that's guaranteed not to work.
From the docs of the zipfile module:
class ZipFile( file[, mode[, compression[, allowZip64]]])
Open a ZIP file, where file can be either a path to a file (a string) or
a file-like object. The mode parameter should be 'r' to read an existing
file, 'w' to truncate and write a new file,
or 'a' to append to an existing file.
... and you don't care about the rest of the class docs in your simple
case of reading.
A class has to be called like a function to give you an object which is
an instance of that class. You need only the first argument; the second
has about a 99.999% chance of defaulting to 'r' if omitted, but we'll
play it safe and explicit:
import zipfile
zf = zipfile.ZipFile('/home/flebber/oddalt.k3b', 'r')
OK, some more useful docs:
namelist( )
Return a list of archive members by name.
printdir( )
Print a table of contents for the archive to sys.stdout.
read( name)
Return the bytes of the file in the archive. The archive must be
open for read or append.
So give the following a try:
print zf.namelist()
zf.printdir()
xml_string = zf.read('maindata.xml')
zf.close()
# xml_string will be a string which may or may not have line endings in
it ...
print len(xml_string)
# If you can't imagine what the next two lines will do,
# you'll have to do it once, just to see what happens:
for line in xml_string:
print line
# Wasn't that fun? How big was that file? Now do this:
lines = xml_text.splitlines()
print len(lines) # number of lines
print len(lines[0]) # length of first line
# Ummm, maybe if it's only one line you don't want to do this either,
# but what the heck:
for line in lines:
print line
HTH,
John
Thanks that was so helpful to see how to do it. I have read a lot but
it wasn't sinking in, and sometimes its better to learn by doing. Some
of the books I have read just seem to go from theory to theory with
the occasional example ( which is meant to show us how good the author
is rather than help us).
For the record
## working on region in file /usr/tmp/python-F_C5sr.py...
['mimetype', 'maindata.xml']
File Name
Modified Size
mimetype 2007-05-27
20:36:20 17
maindata.xml 2007-05-27
20:36:2010795
print len(xml_string)
10795
for line in xml_string:
print line
... ...
?
x
m
l
v
e
r
s
i.(etc ...it went for a while)
and
lines = xml_string.splitlines()
print len(lines)
387
print len(lines[0])
38
for line in lines:
... print line
File stdin, line 2
print line
^
IndentationError: expected an indented block
for line in lines:
print line
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Re: read xml file from compressed file using gzip
On Jun 10, 3:45 am, Stefan Behnel [EMAIL PROTECTED] wrote: flebber wrote: I was working at creating a simple program that would read the content of a playlist file( in this case *.k3b) and write it out . the compressed *.k3b file has two file and the one I was trying to read was maindata.xml The k3b format is a ZIP archive. Use the zipfile library: file:///usr/share/doc/python2.5-doc/html/lib/module-zipfile.html Stefan Thanks for all the help, have been using the docs at python.org and the magnus t Hetland book. Is there any docs tha re a little more practical or expressive as most of the module documentation is very confusing for a beginner and doesn't provide much in the way of examples on how to use the modules. Not criticizing the docs as they are probably very good for experienced programmers. -- http://mail.python.org/mailman/listinfo/python-list
Re: read xml file from compressed file using gzip
On Jun 8, 9:45 pm, flebber [EMAIL PROTECTED] wrote:
On Jun 8, 3:31 pm, Stefan Behnel [EMAIL PROTECTED] wrote:
flebber wrote:
I was working at creating a simple program that would read the content
of a playlist file( in this case *.k3b) and write it out . the
compressed *.k3b file has two file and the one I was trying to read
was maindata.xml.
Consider using lxml. It reads in gzip compressed XML files transparently and
provides loads of other nice XML goodies.
http://codespeak.net/lxml/dev/
Stefan
I will, baby steps at the moment for me at the moment though as I am
only learning and can't get gzip to work
This is my latest attempt
#!/usr/bin/python
import os
import zlib
class gzip('/home/flebber/oddalt.k3b', 'rb')
main_data = os.system(open(/home/flebber/maindata.xml));
for line in main_data:
print line
main_data.close()
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Re: read xml file from compressed file using gzip
On Jun 8, 3:31 pm, Stefan Behnel [EMAIL PROTECTED] wrote: flebber wrote: I was working at creating a simple program that would read the content of a playlist file( in this case *.k3b) and write it out . the compressed *.k3b file has two file and the one I was trying to read was maindata.xml. Consider using lxml. It reads in gzip compressed XML files transparently and provides loads of other nice XML goodies. http://codespeak.net/lxml/dev/ Stefan I will, baby steps at the moment for me at the moment though as I am only learning and can't get gzip to work -- http://mail.python.org/mailman/listinfo/python-list
Gzip - gunzip using zlib
Hi Can anyone show me a working example of how to use gzip to decompress a file. I have read the docs at python.org and had many goes at it but just can't get it to work. Cheers flebber -- http://mail.python.org/mailman/listinfo/python-list
