http://www.parttimejobsu.blogspot.com/
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Hi,
I am facing some problem in installing the OpenOpt optimization toolbox.
What I have done is I downloaded the OpenOpt package and added the
folder containing scikits to the PythonPath by:
sys.path.append('C:\Documents and Settings\User\Desktop\openopt')
but when i try following:
from
I have a linux machine (ip = 10.10.10.8), which can ping other
machines on the same subnet...such as
10.10.10.1
10.10.10.2
10.10.10.5
10.10.10.6
10.10.10.254
If I use socket.gethostbyaddr(ip) I get back results when ip is
10.10.10.1 and 10.10.10.254 but for the other IP addresses
(10.10.10.5,
I have some HTML such as
a href=img src=image/blah/a.jpg id=dblah blah blah/
a
I wnat to pull out the text that lies inside the quotes of the src
attribute. So in this example I would get image/blah/a.jpg
My regex so far is: src=\(.*)\ however the group in this case
would
thanks, forgot that.
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Has anyone seen this error before:
wrap_EncryptByteArray() argument 1 must be string without null bytes,
not str
I am having a hard time finding anything about it.
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Hi,
I have a class such as,
class Type:
def __init__(self, val):
self.val = val
class Person:
def __init__(self, name, age):
self.name = name
self.age = age
So I have a dictionary which maps an instance of Type to an instance
of Person. Now I need to
You'll need __eq__ for testing if two objects are equivalent, and
__hash__ for calculating object's hash value.
class Type:
def __init__(self, val):
self.val = val
def __eq__(self, other):
return self.val == other.val
def __hash__(self):
return
I hope you see now why it is consistent.
Georg
yea that clears it up. thanks.
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I wanted to extend tuple but ran into a problem. Here is what I
thought would work
class MyTuple(tuple):
def __init__(self, *args):
tuple.__init__(self, args)
x = MyTuple(1,2,3,4)
That gives me...
TypeError: tuple() takes at most 1 argument (4 given).
However, this call works:
x
As an immutable type, tuple makes use of __new__.
class MyTuple(tuple):
def __new__(cls, *args):
return tuple.__new__(cls, args)
should work.
Georg
strange. not very consistent.
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I have a file, a.py
blah = None
def go():
global blah
blah = 5
From the python interpreter I try
from a import *
blah
go()
blah
...i was hoping to see 5 get printed out the second time I displayed
blah, but it doesn't. Now, if I type this same code directly into the
python
Blerch! Why not just call the modules by the right names in the first
place? Then each will have its own sys.modules entry for a start ...
regards
Steve
what do i need to do? also, is there a way I can load each one as I
have but each one have its own unique entry in sys.modules? For
thanks for the help.
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I have the following directory/file structure...
c:\foo\utils.py
c:\foo\bar\ok.py
In ok.py I want to do something like...
import utils
utils.helpMeDoSomething()
However, it seems that ok.py doesn't know about utils. Other than
manually configuring sys.path what can I do?
thanks
--
On Mar 20, 9:58 am, Diez B. Roggisch [EMAIL PROTECTED] wrote:
After a bunch of questions of that kind, I suggest you take a step back, and
read this:
http://docs.python.org/tut/node8.html
got it, thanks.
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I have the following directory structure setup...
c:\alpha\Person.py
--
class Person(IPerson):
def __init__(self):
print Alpha person here
c:\beta\Person.py
--
class Person(IPerson):
def __init__(self):
print Beta person here
nevermind this took care of it:
import sys
def tryAllThree():
a = c:\\alpha
b = c:\\beta
g = c:\\gamma
sys.path.append(a)
import Person
alpha = Person.Person()
sys.path.remove(a)
sys.path.append(b)
reload(Person)
beta = Person.Person()
I have a wxTextCtrl:
wx.TextCtrl(self.myPanel, -1, , style=wx.TE_MULTILINE)
I take a set of text (65,000 characters), and paste it into the text
control. all looks well. Then when I click a button I print out the
entered text and the length of that text. Here is what I am seeing...
1. Paste
When do I need to use a trailing slash to separate code over multiple
lines.
For example:
x = hello world, this is my multiline + \
string
x = {'name' : \
'bob'}
Do I need to use the \ in the above examples? When do i need to use
it?
--
Hi,
I have a dictionary which may contain various keys/values, however,
it will always contain 'name' and 'age' keys.
This dictionary is kept inside a class, such as
class Person:
def __init__(self, name, age):
self.data = {'name' : name, 'age' : age}
On Mar 14, 7:29 am, abcd [EMAIL PROTECTED] wrote:
Hi,
I have a dictionary which may contain various keys/values, however,
it will always contain 'name' and 'age' keys.
This dictionary is kept inside a class, such as
class Person:
def __init__(self, name, age
Are lists thread safe? Or do I have to use a Lock when modifying the
list (adding, removing, etc)? Can you point me to some documentation
on this?
thanks
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Thanks for the link. I saw that one in my google search but didn't
visit it for some reason.
Looks like most operations should be just fine.
Thanks.
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I guess this might be overkill then...
class MyList(list):
def __init__(self):
self.l = threading.Lock()
def append(self, val):
try:
self.l.acquire()
list.append(self, val)
finally:
if self.l.locked():
On Mar 9, 2:50 pm, abcd [EMAIL PROTECTED] wrote:
I guess this might be overkill then...
class MyList(list):
def __init__(self):
self.l = threading.Lock()
def append(self, val):
try:
self.l.acquire()
list.append(self, val)
finally
probably a Thread.
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But a thread leaves the script running until the thread exits, right?
So the webpage would just keep saying loading at the bottom I think.
-Greg
give it a shot. if you spawn off a new thread your code should keep
executing while the thread does its work in the background.
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Is there a way to capture key strokes on a system using python (other
than pyHook)? can wxPython capture keystrokes for the system (not
just, say a text box)?
thanks
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anyone?
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I am having trouble with pyHook on python 2.4.1. Basically I have a
python app that uses pyHook to capture keyboard events and write them
straight to a file. The application is running as a service on a
windows machine. If I am at that windows machine the application
works just fine, logging my
I'd pick, Dive Into Python (http://www.diveintopython.org/) you
can read it online for FREE!
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I have the following code which is sent over the wire as a string...
from time import time
class Foo:
def go(self):
print Time:, time()
I get this code and store it as, data
data = receivePythonSource()
Then I try...
exec marshal.loads(data) in my_module.__dict__
However I get
On Jan 31, 8:02 am, Benjamin Niemann [EMAIL PROTECTED] wrote:
marshal is used to (de)serialize python objects from/to strings.
marshal.loads() tries to deserialize an encoded string back into a python
object - which does not make sense here.
What you probably want is:
exec data in
In my code I am debating whether or not to validate the types of data
being passed to my functions. For example
def sayHello(self, name):
if not name:
rasie name can't be null
if not isinstance(name, str):
raise name must be a string
print Hello + name
Is the use of
The Python way is to validate by performing the operations you need to
perform and catching any exceptions that result. In the case of your
example, you seem to be saying that you'd rather raise your own
exception (which, by the way, should really be a subclass of Exception,
but we will
Well my example function was simply taking a string and printing, but
most of my cases would be expecting a list, dictionary or some other
custom object. Still propose not to validate the type of data being
passed in?
Thanks.
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Well my example function was simply taking a string and printing, but
most of my cases would be expecting a list, dictionary or some other
custom object. Still propose not to validate the type of data being
passed in?
Thanks.
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Yes because usually you don't expect a list or dictionary but some object
that *acts* like a list or dictionary. Or you even expect just some
aspects of the type's behavior. For example that it is something you can
iterate over.
Ciao,
Marc 'BlackJack' Rintsch
good point. is there
I have a class such as...
id = 0
class Foo:
def __init__(self, data):
self.id = id
id += 1
self.data = data
And I am storing them in a Queue.Queue...
import Queue
q = Queue.Queue()
q.put(Foo('blah'))
q.put(Foo('hello world'))
q.put(Foo('test'))
how can I search q
Yea basically I need Queue like functionality with the ability to
search for a particular instance in it. I guess I could just use a
list and search it as needed.
Thanks.
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How can tell if an object is a subclass of something else?
Imagine...
class Thing:
pass
class Animal:
pass
class Dog:
pass
d = Dog()
I want to find out that 'd' is a Dog, Animal and Thing. Such as...
d is a Dog
d is a Animal
d is a Thing
Thanks
--
yea i meant to have animal extend thing and dog extend animalmy
mistake.
anyways, is there a way to check without having an instance of the
class?
such as,
isinstance(Dog, (Animal, Thing)) ??
thanks
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I am using fnmatch.fnmatch to find some files. The only problem I have
is that it only takes one pattern...so if I want to search using
multiple patterns I have to do something like
patterns = ['abc*.txt', 'foo*']
for p in patterns:
if fnmatch.fnmatch(some_file_name, p):
return
thanks for the feedback, I am watching the screencasts, which are
helping already. I think I will try out the Dabo GUI tool since it
uses wxPython...and see if I can get the code I need from it.
thanks
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I have a TextCtrl which is set to be multi-line. I have a function
say, updateText(msg), which takes some string and appends it to the
text control...
txtControl.AppendText(msg)
however, if the text that I am appending would cause the scroll
bars to appear/or scroll since the text is long
On Oct 30, 2:52 pm, John Salerno [EMAIL PROTECTED] wrote:
Don't know for sure, but you can try calling the Refresh() method on
the
text control and see if that fixes it.
Didn't make a difference. Not sure what the problem is, I am wondering
if it is a layout issue since that is my weak spot
But one question that comes to mind is, do you not add sizerTextPanel to
sizerMainPanel? I think all sub-sizers should be added to the main
sizer, unless there's some weird reason I don't know of.
well i set the sizer on the textPanel and then I add the textPanel to
sizerMainPanel
--
On Oct 30, 3:47 pm, John Salerno [EMAIL PROTECTED] wrote:
I noticed that one object you refer to is
self.textPane, is that supposed to be self.textPanel?
no, self.textPane is the actual wx.TextCtrl.
I used a GUI Builder to the layout stuff...perhaps that's my problem :)
is there a good site to
How do I do sometihing simple like that in python?
print hello
print Jim
How do I enter line numbers, or if none, what do I do.
no line numbers needed
Can the interpreter load a text file with my program in it?
read in a text file:
data = open(something.txt).read()
How do I list a
Gabriel Genellina wrote:
A VNC server is about 400K in size...
Yea, VNC is not an option in my case.
thanks anyway, perhaps I'll look into generating a slideshow using
HTML/javascript which can load the images.
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I have PIL 1.1.5 on python 2.4.1 and I am attempting to get a smaller
(file size) of an image.
for example:
im = ImageGrab.grab()
im.save(tmp.gif) about 1.7mb
im.save(tmp.jpeg) about 290kb
anyways I want to save the image as a GIF, but not have it be so
largeso I thought that
Fredrik Lundh wrote:
GIF is horribly unsuitable for screenshots on modern machines. have you
considered using PNG ?
or even better, Flash?
well I am trying to take screenshots and make them into an animated
GIF, however, putting them into a Flash movie would be coolany idea
how to go
oh and vnc2swf would not be an option, i cant be setting up a vnc
server, etc. just need to use python (and necessary packages).
animated gif would probably be best i am assuming.
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Fredrik Lundh wrote:
to repeat myself:
here's a tool that lets you use VNC to capture the screen, and then
convert
the result to a flash animation:
http://www.unixuser.org/~euske/vnc2swf/
/F
is there a way to make animated GIFs with python? vnc2swf is to much
for what i
fredrik,
in other posts you have mentioned the use of gifmaker. i have tried
that with the following:
I am using gifmaker.py from PIL v1.1.5 on python 2.4.1.
CODE
import ImageGrab, gifmaker
seq = []
while keepOnGoing:
im
Brett Hoerner wrote:
Are you sure you can't use VNC? An animated GIF based on full-screen
grabs will be amazingly huge and have very low color quality at the
same time.
Installing VNC on Windows should take you about 30 seconds, honest.
Or is this for some sort of project where you can't
x = None
result = (x is None and or str(x))
print result, type(result)
---
OUTPUT
---
None type 'str'
y = 5
result = (y is 5 and it's five or it's not five)
print result
-
OUTPUT
-
it's five
...what's wrong with the first operation I did with
Carsten Haese wrote:
Use Python 2.5 where there is a true conditional
expression or find another way to solve your problem.
python 2.5 once we upgrade (hopefully soon), anyways...an earlier post
suggested the inverse...
x = None
result = (x is not None and str(x) or )
which works just fine.
I am using gifmaker.py from PIL v1.1.5 on python 2.4.1.
CODE
import ImageGrab, gifmaker
seq = []
while keepOnGoing:
im = ImageGrab.grab()
seq.append(im)
fp = open(out.gif, wb)
gifmaker.makedelta(fp, seq)
fp.close()
class Foo:
def __init__(self, name, data=[]):
self.name = name
self.data = data
def addData(self, val):
self.data.append(val)
f = Foo('a')
f.addData(1)
f.addData(2)
f2 = Foo('b')
print f.name, f.data
print f2.name, f2.data
OUTPUT
Rob Williscroft wrote:
http://docs.python.org/ref/function.html#l2h-619
thanks. weird that it works that way since they even state This is
generally not what was intended.
oh well.
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I have a class which extends 'file'
class MyFile(file):
def __init__(self, fname, mode='r'):
file.__init__(self, fname, mode)
def write(self, str):
print writing a string
file.write(self, str)
def writelines(self, lines):
print writing lines
I have a python script which creates a wx.App, which creates a wx.Frame
(which has a wx.Timer).
looks sorta like this:
class MyProgram:
def __init__(self):
self.app = MyApp(0)
self.app.MainLoop()
class MyApp(wx.App):
def OnInit(self):
self.myframe= MyFrame()
Fix: Start the script from the main thread only.
Regards,
Björn
thanks for NO help.anyways, I got rid of the Timer b/c all i was
using it for was to check the state of the shift key.but I am now
binding to key up/down.
thanks anyway
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any ideas on how to block a network port from being used, or one that
is currently in use? For example, say I want to block port 23 from
being used. by used, I mean allowing connections to or from it.
thanks in advance.
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Larry Bates wrote:
This is not really a Python question. Blocking ports is a function
of your firewall solution.
ok, no of any python solutions? or command-line firewalls?
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I am trying to get a regex that will match \r\n in a string.
ultimately i am trying to replace all \r\n with somethign else, say
BLAH.
For example:
This is a message
on a new line
would become:
This is a messageBLAHon a new line.
any ideas? i tried
re.compile('\r\n').match(This is a message +
if i have a number, say the size of a file, is there an easy way to
output it so that it includes commas?
for example:
1890284
would be:
1,890,284
I am looking for something builtin to python, not a third party lib.
thanks
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I have a regex: '[A-Za-z]:\\([^/:\*\?\|])*'
when I do, re.compile('[A-Za-z]:\\([^/:\*\?\|])*') ...I get
sre_constants.error: unbalanced parenthesis
do i need to escape something else? i see that i have matching
parenthesis.
thx
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well thanks for the quick replies, but now my regex doesn't work.
[code]
import re
p = re.compile(r'[A-Za-z]:\\([^/:\*?\|])*')
x = p.match(c:\test)
[/code]
x is None
any ideas why? i escape the back-slash, the asterisk *, and the PIPE |
b/c they are regex special characters.
--
sorry i forgot to escape the question mark...
[code]
import re
p = re.compile(r'[A-Za-z]:\\([^/:\*?\|])*')
even when I escape that it still doesnt work as expected.
p = re.compile(r'[A-Za-z]:\\([^/:\*\?\|])*')
p.match('c:\test') still returns None.
--
Sybren Stuvel wrote:
Yes, because after the c: you expect a backslash, and not a tab
character. Read the manual again about raw strings and character
escaping, it'll do you good.
doh. i shall do that.
thanks.
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not sure why this passes:
regex = r'[A-Za-z]:\\([^/:\*\?\|])*'
p = re.compile(regex)
p.match('c:\\test')
_sre.SRE_Match object at 0x009D77E0
p.match('c:\\test?:/')
_sre.SRE_Match object at 0x009D7720
the last example shouldnt give a match
--
how can i determine if a given character sequence matches my regex,
completely?
in java for example I can do,
Pattern.compile(regex).matcher(input).matches()
this returns True/False whether or not input matches the regex
completely.
is there a matches in python?
--
yea i saw thatguess I was trusting that my regex was accurate :)
...b/c i was getting a Matcher when I shouldnt have, but i found that
it must be the regex.
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Just curious if anyone had any information, or links, regarding the
blocking of network ports and/or taking over (hijacking) ports using
Python.
Any python modules/libs you could recommend? tutorials/reading
materials?
Thanks in advance.
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If I have code which imports a module over and over again...say each
time a function is called, does that cause Python to actually re-import
it...or will it skip it once the module has been imported??
for example:
def foo():
import bar
bar.printStuff()
foo()
foo()
foo()
foo()
...will
Anyone ever use the PythonDoc ant task? I have the following...
path id=myPyPath
pathelement location=src/
pathelement location=resources/
/path
target name=pyDoc
mkdir dir=docs/
py-doc pythonpathref=myPyPath destdir=docs
fileset dir=src
include name=**/*.py/
/fileset
i found that the problem is because of an import, which is strange.
The imported module looks something like this
[code]
import time
class Foo:
pass
class Bar:
global javax.swing
import javax.swing
[/code]
so it seems that pydoc cant giggity-giggit!
--
I have a script which zips up a directory, once it does with that
(before it closes the zip file) I want to replace a file that was added
to the zip, say Foo.txt.
So I tried this...
[code]
z = zipfile.ZipFile(blah.zip, w)
# zip the directory
#...
I have a single jython file, foo.py which contains multiple classes. I
read that into a string and try to exec itbut I get errors saying
something like unable to load class. It seems to work fine if foo.py
only contains a single class, any ideas?
--
the error i get when i run the exec is, java.lang.ClassFormatError...
thanks
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I recently came across a problem where I saw this error:
TypeError: unsubscriptable object
How can I determine if an object is scriptable or unscriptable?
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Richard Brodie wrote:
subscriptable: supports an indexing operator, like a list does.
doesn't seem to be a builtin function or module...or is that just your
definition of subscriptable?
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Daniel Evers wrote:
Right. You can check this e.g. with
hasattr(x, __getitem__)
because the __getitem__ method is used for indexing.
Thanks...that is what I was looking for!
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I have a program which is written in C and interfaced with python via
Swig. However, the function I call prints stuff out to the console. I
would like to capture what it is printing out. I tried:
[code]
import MyCProg, sys
f = open(tmp.txt, wb)
sys.stdout = f
MyCProg.getData()
f.close()
anyone have v2.x of pysqlite that I could download? the website is
down for a hardware upgrade with no date as to when it will be back.
I checked sourceforge but there are no files there to download.
thanks.
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Dennis Lee Bieber wrote:
On 27 Mar 2006 10:17:21 -0800, abcd [EMAIL PROTECTED] declaimed
the following in comp.lang.python:
anyone have v2.x of pysqlite that I could download? the website is
down for a hardware upgrade with no date as to when it will be back.
Source or binary
When I call:
pythoncom.PumpMessages()
...it blocks at that line. According to the docs, it says it will run
until it receives a WM_QUITso I try to create a separate thread and
do
import win32api
win32api.PostQuitMessage()
...but the code is still blocking at PumpMessages. Any ideas?
When I call:
pythoncom.PumpMessages()
...it blocks at that line. According to the docs, it says it will run
until it receives a WM_QUITso I try to create a separate thread and
do
import win32api
win32api.PostQuitMessage()
...but the code is still blocking at PumpMessages. Any ideas?
Anyone know if (and when) the talks from PyCon2006 will be available
for download. I am particularly interested in the tutorials (as they
did not have them at PyCono2005).
Thanks.
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Max M wrote:
http://us.pycon.org/AudioVideoRecording/HomePage
Thanks, after going to the URL, I clicked talks and got to
http://us.pycon.org/talks ...this page lets u pick which talks you
want to access.
thanks.
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well actually, the site looked promising...only problem is no talks
have audio, video or handouts available (at least right now).
oh well.
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Not sure if it matters, but this occurs when running a unittest.
The trace back is:
Traceback (most recent call last):
File C:\Python24\Lib\threading.py, line 442, in __bootstrap
self.run()
File C:\Python24\Lib\threading.py, line 422, in run
self.__target(*self.__args,
i was missing self in my method signature!
doh!
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I have class like this...
import threading
class MyBlah(object):
def __init__(self):
self.makeThread(self.blah, (4,9))
def blah(self, x, y):
print X and Y:, x, y
def makeThread(self, func, args=(), kwargs={}):
threading.Thread(target=self.blah, args=args,
is there a built-in way of printing the size of a file nicely?
So if the file size is 103803 bytes it prints out like: 103.8K
or
0.1MB
something liek that?
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i want to create a CGI script which simply prints out values given via
the URL (such as when a GET is performed).
So if I have a script named, foo.cgi and I access it by going to:
http://www.somesite.com/cgi-bin/foo.cgi?name=johnage=90
I want foo.cgi to print out:
name: john
age: 90
how
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