[ANN] Pyspread 0.0.14b released
Pyspread 0.0.14b released = I am pleased to announce the new release 0.0.14b of pyspread. About: -- Pyspread is a cross-platform Python spreadsheet application. It is based on and written in the programming language Python. Instead of spreadsheet formulas, Python expressions are entered into the spreadsheet cells. Each expression returns a Python object that can be accessed from other cells. These objects can represent anything including lists or matrices. Pyspread runs on Linux and *nix platforms with GTK support as well as on Windows (XP and Vista tested). On Mac OS X, some icons are too small but the application basically works. Homepage http://pyspread.sourceforge.net New features * Cell border can be changed independently. * Cell access allows negative indices when not slicing. Enjoy Martin -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations/
Re: question regarding wxSlider
Hi Philip, Thanks for your redirection. I'll try with them :) Cheers, Ugo PS : yes developing a robotic hand is really fun :D On Fri, Mar 12, 2010 at 7:08 PM, Philip Semanchuk phi...@semanchuk.comwrote: On Mar 12, 2010, at 1:56 PM, Ugo Cupcic wrote: Hi all, I have a question regarding wxSlider. I'm developing a wxwidget python interface for a robotic hand. The sliders send the target values to the joints. I'd like to display the current position of the joint on the slider. I wanted to use wxSlider.SetTick(myposition) but I couldn't get SetTick to display anything. Anyone has an idea ? I attached a dummy code to the message to illustrate. Hi Ugo, I don't mean to chase you away, but there is a dedicated wxPython mailing list where you obviously have a much better chance of getting an answer. http://www.wxpython.org/maillist.php Developing a robotic hand sounds like fun! Cheers Philip -- http://mail.python.org/mailman/listinfo/python-list -- Ugo Cupcic http://www.genugo.com/ugocupcic _ ' v ' / \ m m -- http://mail.python.org/mailman/listinfo/python-list
Re: execute bash builtins in python
I found this to be even better; maybe someone will find this useful, who knows. just export PS1, duh Popen([bash -c 'export PS1='python'; source $HOME/.bashrc;alias'],shell=True,stdout=PIPE).stdout.read() -Alex Goretoy -- http://mail.python.org/mailman/listinfo/python-list
Python for newbies (Pythno users group in Macedonia)
Hi all, we are starting with bi-monthly Python User Group meetings in Skopje, Macedonia. The meetings are targeted for both beginners and more experienced users. The basic idea is to have an 1 hour presentation at the start for the beginners and an 1 hour ad-hoc discussion about projects, applications, interesting stuff etc. I'd like to gather some guidance/experince/thoughts about some beginner oriented python lectures we could use? My first idea was to do something like the Python module of the Week, but maybe there's a better approach? thanks -- damjan -- http://mail.python.org/mailman/listinfo/python-list
Re: python to exe
Steven D'Aprano wrote: As the old proverb goes: give a man a fish, and you feed him for a day. Teach him how to fish, and he has food forever. I like this version: Light a man a fire, and you keep him warm for hours. Set a man on fire, and you keep him warm for the rest of his life. ;-) -- http://mail.python.org/mailman/listinfo/python-list
Re: python to exe
* Gib Bogle: Steven D'Aprano wrote: As the old proverb goes: give a man a fish, and you feed him for a day. Teach him how to fish, and he has food forever. I like this version: Light a man a fire, and you keep him warm for hours. Set a man on fire, and you keep him warm for the rest of his life. ;-) Hey! I was going to post that! And there it was, in the next article... :-) Cheers, - Alf -- http://mail.python.org/mailman/listinfo/python-list
Re: python to exe
Gib Bogle wrote: Steven D'Aprano wrote: As the old proverb goes: give a man a fish, and you feed him for a day. Teach him how to fish, and he has food forever. I like this version: Light a man a fire, and you keep him warm for hours. Set a man on fire, and you keep him warm for the rest of his life. ;-) I'm certain that members of the Guinea Pig Club might have something to say on that one, see :- http://en.wikipedia.org/wiki/Guinea_Pig_Club -- http://mail.python.org/mailman/listinfo/python-list
Re: to create variable from dict
On Fri, 12 Mar 2010 06:50:18 -0800 (PST) Luis M. González luis...@gmail.com wrote: The question is: should you do it? And the answer is: No. And the usual disclaimer is: (Unless you *know* it's the best possible solution to your problem.) /W -- INVALID? DE! -- http://mail.python.org/mailman/listinfo/python-list
Re: execute bash builtins in python
alex goretoy wrote: I found this to be even better; maybe someone will find this useful, who knows. just export PS1, duh Popen([bash -c 'export PS1='python'; source $HOME/.bashrc;alias'],shell=True,stdout=PIPE).stdout.read() Try using an interactive shell: from subprocess import * p1 = Popen(bash -i -c alias, stdout=PIPE, shell=True) p1.stdout.read() alias ls='ls --color=auto'\n regards Steve -- Steve Holden +1 571 484 6266 +1 800 494 3119 See PyCon Talks from Atlanta 2010 http://pycon.blip.tv/ Holden Web LLC http://www.holdenweb.com/ UPCOMING EVENTS:http://holdenweb.eventbrite.com/ -- http://mail.python.org/mailman/listinfo/python-list
Re: python to exe
Gib Bogle wrote: Steven D'Aprano wrote: As the old proverb goes: give a man a fish, and you feed him for a day. Teach him how to fish, and he has food forever. I like this version: Light a man a fire, and you keep him warm for hours. Set a man on fire, and you keep him warm for the rest of his life. ;-) I like Give a man a fish, and he eats for a day. Teach a man to fish and he will bore you with stories of the one that got away for the rest of his life. regards Steve -- Steve Holden +1 571 484 6266 +1 800 494 3119 See PyCon Talks from Atlanta 2010 http://pycon.blip.tv/ Holden Web LLC http://www.holdenweb.com/ UPCOMING EVENTS:http://holdenweb.eventbrite.com/ -- http://mail.python.org/mailman/listinfo/python-list
print formatting
Hello, My script contains a print statement: print '%40s %15d' % (k, m) However, 1- the string is right adjusted, and I would like it left adjusted 2- the number is a decimal number, and I would like it with the thousands separator and 2 decimals If possible, the thousands separator and the decimal separator should use my local settings. Is there any way to achieve this? -- http://mail.python.org/mailman/listinfo/python-list
Re: python to exe
John Bokma wrote: Gabriel Genellina gagsl-...@yahoo.com.ar writes: On 13 mar, 00:26, Robin rob...@cnsp.com wrote: Does anyone know of a good python to stand alone exe compiler? http://tinyurl.com/... Wow, pathetic fuck. You don't have to post you know. And you don't have to give Google a second chance at indexing the URL, but we all make mistakes. regards Steve -- Steve Holden +1 571 484 6266 +1 800 494 3119 See PyCon Talks from Atlanta 2010 http://pycon.blip.tv/ Holden Web LLC http://www.holdenweb.com/ UPCOMING EVENTS:http://holdenweb.eventbrite.com/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Python for newbies (Pythno users group in Macedonia)
Дамјан Георгиевски wrote: Hi all, we are starting with bi-monthly Python User Group meetings in Skopje, Macedonia. The meetings are targeted for both beginners and more experienced users. The basic idea is to have an 1 hour presentation at the start for the beginners and an 1 hour ad-hoc discussion about projects, applications, interesting stuff etc. I'd like to gather some guidance/experince/thoughts about some beginner oriented python lectures we could use? My first idea was to do something like the Python module of the Week, but maybe there's a better approach? thanks If you are all English-speakers then perhaps you could consider showing a PyCon video - see http://pycon.blip.tv Good luck with the group. I hope to see PyCon Macedonia emerging before too long! regards Steve -- Steve Holden +1 571 484 6266 +1 800 494 3119 See PyCon Talks from Atlanta 2010 http://pycon.blip.tv/ Holden Web LLC http://www.holdenweb.com/ UPCOMING EVENTS:http://holdenweb.eventbrite.com/ -- http://mail.python.org/mailman/listinfo/python-list
Re: print formatting
vsoler wrote: Hello, My script contains a print statement: print '%40s %15d' % (k, m) However, 1- the string is right adjusted, and I would like it left adjusted 2- the number is a decimal number, and I would like it with the thousands separator and 2 decimals If possible, the thousands separator and the decimal separator should use my local settings. Is there any way to achieve this? Left-alignment is achieved by using a negative width. You can use the locale module to generate thousands-separated numeric string representations: from locale import * setlocale(LC_ALL, '') # locale is otherwise 'C' 'en_US.UTF-8' locale.format(%12.3f, 123456.789, grouping=False) ' 123456.789' locale.format(%12.3f, 123456.789, grouping=True) ' 123,456.789' regards Steve -- Steve Holden +1 571 484 6266 +1 800 494 3119 See PyCon Talks from Atlanta 2010 http://pycon.blip.tv/ Holden Web LLC http://www.holdenweb.com/ UPCOMING EVENTS:http://holdenweb.eventbrite.com/ -- http://mail.python.org/mailman/listinfo/python-list
Re: print formatting
vsoler wrote:
My script contains a print statement:
print '%40s %15d' % (k, m)
However,
1- the string is right adjusted, and I would like it left
adjusted
2- the number is a decimal number, and I would like it with
the thousands separator and 2 decimals
If possible, the thousands separator and the decimal separator should
use my local settings.
Is there any way to achieve this?
import locale
locale.setlocale(locale.LC_ALL, )
'de_DE.UTF-8'
Traditional:
print '%-40s|%15s' % (k, locale.format(%d, m, grouping=True))
hello | 1.234.567
New:
{0:40} {1:15n}.format(k, m)
'hello 1.234.567'
See also:
http://docs.python.org/dev/py3k/library/string.html#formatstrings
Peter
--
http://mail.python.org/mailman/listinfo/python-list
Re: python to exe
Robin, do you of an alternate compilter it doesn't work (py2exe) on my windows 7 box I can assure you that Py2exe does work on Windows 7 (my firm develops commercial Python applications packaged using Py2exe running on Windows 7), but it does take a bit of fiddling and some patience. Join the py2exe newsgroup and post your problems there. https://lists.sourceforge.net/lists/listinfo/py2exe-users You may also want to google 'Gui2exe'. This is a free front-end to Py2exe that you can use to generate your Py2exe setup.py scripts. Note that Gui2exe requires wxPython (free) to run. Finally, make sure you are trying to compile 32-bit Python 2.x code. I don't think py2exe supports Python 3.x or 64-bit versions of Python yet. Nope; py2exe is pretty much the go-to tool for this. I hear great things about PyInstaller. The project is not dead - make sure you use the latest version in the SVN. Search stackoverflow.com for positive feedback and tips on PyInstaller. Its on our plate to take a good look this product 'one of these days'. Good luck! Malcolm -- http://mail.python.org/mailman/listinfo/python-list
Re: Question about typing: ints/floats
In article mailman.266.1267666113.23598.python-l...@python.org, MRAB pyt...@mrabarnett.plus.com wrote: Zeeshan Quireshi wrote: On Mar 3, 6:45 pm, Wells thewellsoli...@gmail.com wrote: This seems sort of odd to me: a = 1 a += 1.202 a 2.202 Indicates that 'a' was an int that was implicitly casted to a float. But: a = 1 b = 3 a / b 0 This does not implicitly do the casting, it treats 'a' and 'b' as integers, and the result as well. Changing 'b' to 3.0 will yield a float as a result (0.1) Is there some way to explain the consistency here? Does python implicitly change the casting when you add variables of a different numeric type? Anyway, just curiosity more than anything else. Thanks! Python, like most other languages performs only integer division when both the operands are ints. So only if one of the types is a flot or you explicitly cast your expression to be a double, then the value will be a fraction. otherwise you will the quotient. int + int gives int float + float gives float int + float gives float You skip a step here that the OP may have missed. a = 1 a += 1.222 This invokes the calculation 1 + 1.222 which is int + float. Groetjes Albert -- -- Albert van der Horst, UTRECHT,THE NETHERLANDS Economic growth -- being exponential -- ultimately falters. alb...@spearc.xs4all.nl =n http://home.hccnet.nl/a.w.m.van.der.horst -- http://mail.python.org/mailman/listinfo/python-list
Re: Reverse engineering CRC?
In article 7vj7fdfnn...@mid.individual.net, Gregory Ewing greg.ew...@canterbury.ac.nz wrote: Given some known data/crc pairs, how feasible is it to figure out the polynomial being used to generate the crc? In the case I'm looking at, it appears that the crc size may be at least 24 bits, so just trying all possible polynomials probably isn't doable. An article I found hints at the possibility of using GCDs to make the search more efficient, but doesn't go into any details. Anyone know of any literature about this? If it helps, I have the ability to generate test cases with known message contents to some extent, although I don't have complete control over the contents. Also it's a manual process, so generating large numbers of them automatically isn't an option. If it is really a CRC, it is doable. You can have an indication, if the intention is to detect machine errors (transmission or disk errors) or they want you to prevent tampering with the file. In the latter case it may be a one-way hash. Then it is near impossible, as this is the design criterion for a one-way hash. -- Greg Groetjes Albert -- -- Albert van der Horst, UTRECHT,THE NETHERLANDS Economic growth -- being exponential -- ultimately falters. alb...@spearc.xs4all.nl =n http://home.hccnet.nl/a.w.m.van.der.horst -- http://mail.python.org/mailman/listinfo/python-list
Use python and Jython together? (newbie)
I'm pretty new at programming and want some advice on mixing Jython and Python. I want to use Jython to access some Java libraries, but I want to keep developing in normal Python. Some modules I use a lot are not available in Jython. The bulk of my programming is in Python but I want to use Java 2D libraries for graphical presentation of data generated in normal Python. Is it possible that I generate data in Python and then pass it through to a Jython program to visualise the data. -- http://mail.python.org/mailman/listinfo/python-list
building a dict
Say that m is a tuple of 2-tuples
m=(('as',3), ('ab',5), (None, 1), ('as',None), ('as',6))
and I need to build a d dict where each key has an associated list
whose first element is the count, and the second is the sum. If a 2-
tuple contains a None value, it should be discarded.
The expected result is:
d={'as':[2, 9], 'ab': [1,5]}
How should I proceed? So far I have been unsuccessful. I have tried
with a for loop.
Thank you for your help
--
http://mail.python.org/mailman/listinfo/python-list
Re: Use python and Jython together? (newbie)
Karjer Jdfjdf wrote: I'm pretty new at programming and want some advice on mixing Jython and Python. I want to use Jython to access some Java libraries, but I want to keep developing in normal Python. Some modules I use a lot are not available in Jython. The bulk of my programming is in Python but I want to use Java 2D libraries for graphical presentation of data generated in normal Python. Is it possible that I generate data in Python and then pass it through to a Jython program to visualise the data. You can't mix Jython and Python in one program. But you can use other means to create bindings for Java code. JCC (http://pypi.python.org/pypi/JCC/2.5.1) is a very powerful code generator for CPython. Christian -- http://mail.python.org/mailman/listinfo/python-list
Re: building a dict
On 13 Mar, 15:05, vsoler vicente.so...@gmail.com wrote:
Say that m is a tuple of 2-tuples
m=(('as',3), ('ab',5), (None, 1), ('as',None), ('as',6))
and I need to build a d dict where each key has an associated list
whose first element is the count, and the second is the sum. If a 2-
tuple contains a None value, it should be discarded.
The expected result is:
d={'as':[2, 9], 'ab': [1,5]}
How should I proceed? So far I have been unsuccessful. I have tried
with a for loop.
Thank you for your help
Something like:
d = defaultdict( lambda: [0,0] )
for key, val in filter(lambda L: not any(i is None for i in L), m):
d[key][0] += 1
d[key][1] += val
hth
Jon
--
http://mail.python.org/mailman/listinfo/python-list
Re: building a dict
On Mar 13, 9:05 am, vsoler vicente.so...@gmail.com wrote:
Say that m is a tuple of 2-tuples
m=(('as',3), ('ab',5), (None, 1), ('as',None), ('as',6))
and I need to build a d dict where each key has an associated list
whose first element is the count, and the second is the sum. If a 2-
tuple contains a None value, it should be discarded.
The expected result is:
d={'as':[2, 9], 'ab': [1,5]}
How should I proceed? So far I have been unsuccessful. I have tried
with a for loop.
Post your first try at a for loop, and people might be willing to
point out problems, but this is such a basic for loop that it is
unlikely that anybody is going to write your ENTIRE homework for you.
Regards,
Pat
--
http://mail.python.org/mailman/listinfo/python-list
Re: building a dict
vsoler wrote:
Say that m is a tuple of 2-tuples
m=(('as',3), ('ab',5), (None, 1), ('as',None), ('as',6))
and I need to build a d dict where each key has an associated list
whose first element is the count, and the second is the sum. If a 2-
tuple contains a None value, it should be discarded.
The expected result is:
d={'as':[2, 9], 'ab': [1,5]}
How should I proceed? So far I have been unsuccessful. I have tried
with a for loop.
Thank you for your help
Here's a fairly simple-minded approach using a defaultdict, which calls
the dflt() function to create a value when the key is absent.
from collections import defaultdict
def dflt():
... return [0, 0]
...
m = (('as',3), ('ab',5), (None, 1), ('as',None), ('as',6))
d = defaultdict(dflt)
for key, n in m:
... if key is not None and n is not None:
... c, t = d[key]
... d[key] = [c+1, t+n]
...
d
defaultdict(function dflt at 0x7f0bcb1b0ed8,
{'as': [2, 9], 'ab': [1, 5]})
regards
Steve
--
Steve Holden +1 571 484 6266 +1 800 494 3119
See PyCon Talks from Atlanta 2010 http://pycon.blip.tv/
Holden Web LLC http://www.holdenweb.com/
UPCOMING EVENTS:http://holdenweb.eventbrite.com/
--
http://mail.python.org/mailman/listinfo/python-list
Re: Ideas for creating processes
J dreadpiratej...@gmail.com (J) wrote:
J And now I'm looking at subprocess and I can set shell=True and it will
J intrepret special characters like
J So could I do something like this:
J for item in pathlist:
J subprocess.Popen('rsync command ', shell=True)
J and simply wait unti they are all done?
Using shell=True is often the wrong thing to do. And certainly just to
get a process to run in the background. subprocess will run them in the
background by default. Besides if you do it in the way you propose you
can't wait for them. You can only wait for the shell that starts the
rsync, but that will be finished almost immediately.
import subprocess
p = subprocess.Popen('sleep 1000 ', shell=True)
p.wait()
0
The wait() returns immediately.
--
Piet van Oostrum p...@vanoostrum.org
WWW: http://pietvanoostrum.com/
PGP key: [8DAE142BE17999C4]
Nu Fair Trade woonaccessoires op http://www.zylja.com
--
http://mail.python.org/mailman/listinfo/python-list
Re: building a dict
On 13 Mar, 15:28, Patrick Maupin pmau...@gmail.com wrote:
On Mar 13, 9:05 am, vsoler vicente.so...@gmail.com wrote:
Say that m is a tuple of 2-tuples
m=(('as',3), ('ab',5), (None, 1), ('as',None), ('as',6))
and I need to build a d dict where each key has an associated list
whose first element is the count, and the second is the sum. If a 2-
tuple contains a None value, it should be discarded.
The expected result is:
d={'as':[2, 9], 'ab': [1,5]}
How should I proceed? So far I have been unsuccessful. I have tried
with a for loop.
Post your first try at a for loop, and people might be willing to
point out problems, but this is such a basic for loop that it is
unlikely that anybody is going to write your ENTIRE homework for you.
Regards,
Pat
I was thinking it's possibly homework, but looking at previous posts
it's fairly unlikely.
(If it is, then mea culpa, but as Steve has replied, I think I'll
manage to sleep tonight not worrying about the influx of uneducated,
incompetent and otherwise useless developers to the market).
However, they're receiving some 'elegant' solutions which no professor
(unless they're a star pupil - in which case they wouldn't be asking)
would take as having been done by their selves.
(Or at least I hope not)
But yes, I would certainly be interested in the 'unsuccessful
attempt'.
(To the OP, do post your attempts, it does give more validity).
Cheers,
Jon.
--
http://mail.python.org/mailman/listinfo/python-list
Work at Home - Earn 50, 000 Weekly Without Investment Its Not A Fake, 100% Earning Guarantee
Work at Home - Earn 50,000 Weekly Without Investment Its Not A Fake, 100% Earning Guarantee For Register Click Here To Register Now - Start Earning Instantly! http://www.cash-world.myfortuneincome.com http://www.cash-world.myfortuneincome.com http://www.cash-world.myfortuneincome.com http://www.cash-world.myfortuneincome.com http://www.cash-world.myfortuneincome.com http://www.cash-world.myfortuneincome.com http://www.cash-world.myfortuneincome.com -- http://mail.python.org/mailman/listinfo/python-list
wx error, I suspect my class
Hello all,
I am trying to make a gui out of xrc and wxpython, but I think my
understanding of Python's class/method structure is causing problems.
The below code returns an error on the line
panel=xrc.XRCCTRL(mf, dl)
The error goes back to wxPython itself and says attribute error:
'none' type object has no attribute 'FindWindowById'
Here is my complete code:
import wx
from wx import xrc
class myapp(wx.App):
def OnInit(self):
#load the xrc file
res=xrc.XmlResource('dictionary.xrc')
#load the frame containing everything else
mf=res.LoadFrame(None, mainframe)
#assign all necessary controls to variables (text boxes and buttons)
for easier binding
#format: varName=xrc.XRCCTRL(parent, IDFromXRCFile)
panel=xrc.XRCCTRL(mf, dl)
btn_go=xrc.XRCCTRL(panel, btn_go)
btn_close=xrc.XRCCTRL(panel, btn_close)
#now bind the gui controls to functions
mf.Bind(wx.EVT_BUTTON, close, id=xrc.XRCID(btn_close))
mf.Show()
#end def OnInit
def close(self):
mf.Close(True)
#end def close
#end class myapp
win=myapp(False)
win.MainLoop()
That is all there is to it. I made the xrc file with XRCed, so I know
it is properly formatted. I always see Python methods and classes
using the self keyword, but I never understood why or when to/not to
use it. I probably need it in the above code, but I am not sure how to
insert it correctly. I have been fighting with this code for the last
two days with no progress, so I would greatly appreciate any help you
can provide. Thanks.
--
Have a great day,
Alex (msg sent from GMail website)
mehg...@gmail.com; http://www.facebook.com/mehgcap
--
http://mail.python.org/mailman/listinfo/python-list
Re: building a dict
On Mar 13, 8:28 am, Patrick Maupin pmau...@gmail.com wrote:
On Mar 13, 9:05 am, vsoler vicente.so...@gmail.com wrote:
Say that m is a tuple of 2-tuples
m=(('as',3), ('ab',5), (None, 1), ('as',None), ('as',6))
and I need to build a d dict where each key has an associated list
whose first element is the count, and the second is the sum. If a 2-
tuple contains a None value, it should be discarded.
The expected result is:
d={'as':[2, 9], 'ab': [1,5]}
How should I proceed? So far I have been unsuccessful. I have tried
with a for loop.
Post your first try at a for loop, and people might be willing to
point out problems, but this is such a basic for loop that it is
unlikely that anybody is going to write your ENTIRE homework for you.
This is probably what you (OP) were trying to come up with?
[untested]
d = {}
for item in m:
key = m[0]; value = m[1]
if key is None or value is None: continue
if key not in dict:
d[key] = [value]
else:
d[key].append (value)
You can replace the
for item in m:
key = m[0]; value = m[1]
above with
for key, value in m:
which is a little nicer.
However, as other responses point out, when you want
to accumulate results in a dict, collections.defaultdict
should pop into your mind first.
--
http://mail.python.org/mailman/listinfo/python-list
Decorator to inject function into __call__ of a class
This is semi-experimental and I'd appreciate opinions of whether it's
the correct design approach or not. It seems like a good idea, but it
doesn't mean it is.
I have a class 'A', this provides standard support functions and
exception handling.
I have 'B' and 'C' which specialise upon 'A'
What I'd like to achieve is something similar to:
@inject(B):
def some_function(a, b):
pass # something useful
The name 'some_function' is completely redundant -- don't need it,
don't actually care about the function afterwards, as long as it
becomes a __call__ of a 'B' *instance*.
I've basically got a huge list of functions, which need to be the
callable method of an object, and possibly at run-time, so I don't
want to do:
class Something(B):
def __call__(self, etc.. etc...):
pass # do something
I've got as far as type(somename, (B,), {}) -- do I then __init__ or
__new__ the object or...
In short, the function should be the __call__ method of an object that
is already __init__'d with the function arguments -- so that when the
object is called, I get the result of the the function (based on the
objects values).
Hope that makes sense,
Cheers,
Jon.
--
http://mail.python.org/mailman/listinfo/python-list
Some PyCon videos won't play
I am having a great time watching videos from PyCon. Thanks to everyone who presented, and to those who did such a great job putting the videos up at: http://pycon.blip.tv/ My trouble is that, although most of the videos play perfectly, there are a few that refuse to play at all. Like: Python 101 http://pycon.blip.tv/file/3322312/ Using Python to Create Robotic Simulations for Planetary Exploration http://pycon.blip.tv/file/3332780/ Saturday Morning Lightning talks http://pycon.blip.tv/file/3264041/ Is anyone else having trouble with these? _ Your E-mail and More On-the-Go. Get Windows Live Hotmail Free. https://signup.live.com/signup.aspx?id=60969 -- http://mail.python.org/mailman/listinfo/python-list
Re: Decorator to inject function into __call__ of a class
On Mar 13, 10:19 am, Jon Clements jon...@googlemail.com wrote: What I'd like to achieve is something similar to: @inject(B): def some_function(a, b): pass # something useful So, just typing at the keyboard here, you mean something like: class InjectClass(object): def __init__(self, func, *args, **kw): self.func = func self.args = args self.kw = kw def __call__(self): self.func(*self.args, **self.kw) Or exactly what are you looking for? Pat -- http://mail.python.org/mailman/listinfo/python-list
Re: building a dict
On Mar 13, 9:13 am, ru...@yahoo.com wrote:
On Mar 13, 8:28 am, Patrick Maupin pmau...@gmail.com wrote:
On Mar 13, 9:05 am, vsoler vicente.so...@gmail.com wrote:
Say that m is a tuple of 2-tuples
m=(('as',3), ('ab',5), (None, 1), ('as',None), ('as',6))
and I need to build a d dict where each key has an associated list
whose first element is the count, and the second is the sum. If a 2-
tuple contains a None value, it should be discarded.
The expected result is:
d={'as':[2, 9], 'ab': [1,5]}
How should I proceed? So far I have been unsuccessful. I have tried
with a for loop.
Post your first try at a for loop, and people might be willing to
point out problems, but this is such a basic for loop that it is
unlikely that anybody is going to write your ENTIRE homework for you.
This is probably what you (OP) were trying to come up with?
[untested]
d = {}
for item in m:
key = m[0]; value = m[1]
if key is None or value is None: continue
if key not in dict:
d[key] = [value]
else:
d[key].append (value)
You can replace the
for item in m:
key = m[0]; value = m[1]
above with
for key, value in m:
which is a little nicer.
However, as other responses point out, when you want
to accumulate results in a dict, collections.defaultdict
should pop into your mind first.
Oops, didn't read very carefully, did I?
That should be:
d = {}
for item in m:
key = m[0]; value = m[1]
if key is None or value is None: continue
if key not in dict:
d[key] = [1, value]
else:
d[key][0] += 1
d[key][1] += value
--
http://mail.python.org/mailman/listinfo/python-list
Re: Decorator to inject function into __call__ of a class
On 13 Mar, 16:26, Patrick Maupin pmau...@gmail.com wrote: On Mar 13, 10:19 am, Jon Clements jon...@googlemail.com wrote: What I'd like to achieve is something similar to: @inject(B): def some_function(a, b): pass # something useful So, just typing at the keyboard here, you mean something like: class InjectClass(object): def __init__(self, func, *args, **kw): self.func = func self.args = args self.kw = kw def __call__(self): self.func(*self.args, **self.kw) Or exactly what are you looking for? Pat Not quite. Let's say I have function 'F': def add(a, b): return a + b And a base class of 'C' which does all the __init__ stuff or whatever's needed, the function 'add' should return a new class __init__'d with a and b, but 'add' should be the __call__ of that instance. Hope that makes sense, and TY for your post, Jon. -- http://mail.python.org/mailman/listinfo/python-list
Re: Decorator to inject function into __call__ of a class
On Sat, Mar 13, 2010 at 11:19 AM, Jon Clements jon...@googlemail.com wrote:
This is semi-experimental and I'd appreciate opinions of whether it's
the correct design approach or not. It seems like a good idea, but it
doesn't mean it is.
I have a class 'A', this provides standard support functions and
exception handling.
I have 'B' and 'C' which specialise upon 'A'
What I'd like to achieve is something similar to:
@inject(B):
def some_function(a, b):
pass # something useful
The name 'some_function' is completely redundant -- don't need it,
don't actually care about the function afterwards, as long as it
becomes a __call__ of a 'B' *instance*.
I've basically got a huge list of functions, which need to be the
callable method of an object, and possibly at run-time, so I don't
want to do:
class Something(B):
def __call__(self, etc.. etc...):
pass # do something
I've got as far as type(somename, (B,), {}) -- do I then __init__ or
__new__ the object or...
In short, the function should be the __call__ method of an object that
is already __init__'d with the function arguments -- so that when the
object is called, I get the result of the the function (based on the
objects values).
I'm not sure exactly what you are asking for, but if what you want is
a bunch of different objects that vary only by their class's __call__
you could do it with a function that returns a new class based on A
but with a new __call__:
def make_new_call_class(base_class, call_func):
class NewClass(base_class):
def __call__(self, *args, **kw):
return call_func(self, *args, *kw)
return NewClass
or the return could even be NewClass() [return an instance] if this is
a one off.
That said, I'm not really sure what this behavior is good for.
-Jack
--
http://mail.python.org/mailman/listinfo/python-list
Re: Decorator to inject function into __call__ of a class
On Mar 13, 10:38 am, Jon Clements jon...@googlemail.com wrote: On 13 Mar, 16:26, Patrick Maupin pmau...@gmail.com wrote: On Mar 13, 10:19 am, Jon Clements jon...@googlemail.com wrote: What I'd like to achieve is something similar to: @inject(B): def some_function(a, b): pass # something useful So, just typing at the keyboard here, you mean something like: class InjectClass(object): def __init__(self, func, *args, **kw): self.func = func self.args = args self.kw = kw def __call__(self): self.func(*self.args, **self.kw) Or exactly what are you looking for? Pat Not quite. Let's say I have function 'F': def add(a, b): return a + b And a base class of 'C' which does all the __init__ stuff or whatever's needed, the function 'add' should return a new class __init__'d with a and b, but 'add' should be the __call__ of that instance. Hope that makes sense, and TY for your post, Jon. Well, you could do it with a class. But if I'm understanding correctly, maybe it's simpler than that: def inject(*args, **kw): ... def wrapper(func): ... def go(): ... return func(*args, **kw) ... return go ... return wrapper ... @inject(20, 22) ... def add(a, b): ... return a + b ... add() 42 -- http://mail.python.org/mailman/listinfo/python-list
class inheritance
I've got a subclass of fractions.Fraction called Value; it's a mostly trivial class, except that it overrides __eq__ to mean 'nearly equal'. However, since Fraction's operations result in a Fraction, not a Value, I end up with stuff like this: x = Value(1) + Value(2) where x is now a Fraction, not a Value, and x == y uses Fraction.__eq__ rather than Value.__eq__. This appears to be standard Python behavior (int does the same thing). I've worked around it by overriding __add__, etc, with functions that invoke Fraction but coerce the result. But that's tedious; there are a lot of methods to override. So I'm wondering: is there a more efficient way to accomplish what I'm after? -- http://mail.python.org/mailman/listinfo/python-list
Re: class inheritance
On Mar 13, 11:03 am, JLundell jlund...@pobox.com wrote: I've got a subclass of fractions.Fraction called Value; it's a mostly trivial class, except that it overrides __eq__ to mean 'nearly equal'. However, since Fraction's operations result in a Fraction, not a Value, I end up with stuff like this: x = Value(1) + Value(2) where x is now a Fraction, not a Value, and x == y uses Fraction.__eq__ rather than Value.__eq__. This appears to be standard Python behavior (int does the same thing). I've worked around it by overriding __add__, etc, with functions that invoke Fraction but coerce the result. But that's tedious; there are a lot of methods to override. So I'm wondering: is there a more efficient way to accomplish what I'm after? 7 years ago, I had a similar problem for a different and now obsolete reason. I'm sure my solution could be easily updated though. I wrote code to write a wrapper class. Sort of a meta-module. Original reference here: http://groups.google.com/group/comp.lang.python/browse_frm/thread/1253bbab7dfd4b/59289c16603fb374?hl=enlnk=gstq=pmaupin+userint#59289c16603fb374 HTH, Pat -- http://mail.python.org/mailman/listinfo/python-list
Re: Decorator to inject function into __call__ of a class
On 13 Mar, 16:42, Jack Diederich jackd...@gmail.com wrote:
On Sat, Mar 13, 2010 at 11:19 AM, Jon Clements jon...@googlemail.com wrote:
This is semi-experimental and I'd appreciate opinions of whether it's
the correct design approach or not. It seems like a good idea, but it
doesn't mean it is.
I have a class 'A', this provides standard support functions and
exception handling.
I have 'B' and 'C' which specialise upon 'A'
What I'd like to achieve is something similar to:
@inject(B):
def some_function(a, b):
pass # something useful
The name 'some_function' is completely redundant -- don't need it,
don't actually care about the function afterwards, as long as it
becomes a __call__ of a 'B' *instance*.
I've basically got a huge list of functions, which need to be the
callable method of an object, and possibly at run-time, so I don't
want to do:
class Something(B):
def __call__(self, etc.. etc...):
pass # do something
I've got as far as type(somename, (B,), {}) -- do I then __init__ or
__new__ the object or...
In short, the function should be the __call__ method of an object that
is already __init__'d with the function arguments -- so that when the
object is called, I get the result of the the function (based on the
objects values).
I'm not sure exactly what you are asking for, but if what you want is
a bunch of different objects that vary only by their class's __call__
you could do it with a function that returns a new class based on A
but with a new __call__:
def make_new_call_class(base_class, call_func):
class NewClass(base_class):
def __call__(self, *args, **kw):
return call_func(self, *args, *kw)
return NewClass
or the return could even be NewClass() [return an instance] if this is
a one off.
That said, I'm not really sure what this behavior is good for.
-Jack
Cheers Jack for the response.
The behaviour is to not derive from a class, but rather allow
the decorators to do so... so I would like to iterate over
a list of functions (don't care what they're called) and then
inject the function as a method. If needs be at run-time.
Say I have 1000 functions (okay, admittedly over quoted), but
I don't want every programmer to inherit from 'B' or 'C', but
to 'inject'. So the idea is that classes are pre-defined, have
predictable behaviour, *except* the __call__ is different.
You are correct in this. Why do I want that behaviour? -
- It's easier, no inheriting from a class, when needs not.
- Some integrity (anyone can define a function and 'inject' to the
Management class)
- Easier maintainability - maybe :)
for i in function_list:
i = inject(function_list)
At the end of the day:
def blah(x, y, z):
pass
That should be the callable of the object.
Cheers again,
Jon.
--
http://mail.python.org/mailman/listinfo/python-list
Re: building a dict
On Mar 13, 9:26 am, ru...@yahoo.com wrote:
That should be:
d = {}
for item in m:
key = item[0]; value = item[1]
if key is None or value is None: continue
if key not in dict:
d[key] = [1, value]
else:
d[key][0] += 1
d[key][1] += value
That's it. Any other mistakes, you find 'em.
--
http://mail.python.org/mailman/listinfo/python-list
Re: class inheritance
On Sat, Mar 13, 2010 at 12:03 PM, JLundell jlund...@pobox.com wrote: I've got a subclass of fractions.Fraction called Value; it's a mostly trivial class, except that it overrides __eq__ to mean 'nearly equal'. However, since Fraction's operations result in a Fraction, not a Value, I end up with stuff like this: x = Value(1) + Value(2) where x is now a Fraction, not a Value, and x == y uses Fraction.__eq__ rather than Value.__eq__. This appears to be standard Python behavior (int does the same thing). I've worked around it by overriding __add__, etc, with functions that invoke Fraction but coerce the result. But that's tedious; there are a lot of methods to override. So I'm wondering: is there a more efficient way to accomplish what I'm after? If Fraction.__add__ returns a new object but the subclass Value is compatible (as I would except since it is a sublcass) then just change all references in Franction.__add__ to be more generic, ex/ class Franction(): def __add__(self, other): return self.__classs__(self.denominator + other.denominator) That way if __add__ is called by an instance of a subclass it will return an instance of that subclass. -Jack -- http://mail.python.org/mailman/listinfo/python-list
Re: Decorator to inject function into __call__ of a class
On Sat, Mar 13, 2010 at 12:10 PM, Jon Clements jon...@googlemail.com wrote:
On 13 Mar, 16:42, Jack Diederich jackd...@gmail.com wrote:
On Sat, Mar 13, 2010 at 11:19 AM, Jon Clements jon...@googlemail.com wrote:
This is semi-experimental and I'd appreciate opinions of whether it's
the correct design approach or not. It seems like a good idea, but it
doesn't mean it is.
I have a class 'A', this provides standard support functions and
exception handling.
I have 'B' and 'C' which specialise upon 'A'
What I'd like to achieve is something similar to:
@inject(B):
def some_function(a, b):
pass # something useful
The name 'some_function' is completely redundant -- don't need it,
don't actually care about the function afterwards, as long as it
becomes a __call__ of a 'B' *instance*.
I've basically got a huge list of functions, which need to be the
callable method of an object, and possibly at run-time, so I don't
want to do:
class Something(B):
def __call__(self, etc.. etc...):
pass # do something
I've got as far as type(somename, (B,), {}) -- do I then __init__ or
__new__ the object or...
In short, the function should be the __call__ method of an object that
is already __init__'d with the function arguments -- so that when the
object is called, I get the result of the the function (based on the
objects values).
I'm not sure exactly what you are asking for, but if what you want is
a bunch of different objects that vary only by their class's __call__
you could do it with a function that returns a new class based on A
but with a new __call__:
def make_new_call_class(base_class, call_func):
class NewClass(base_class):
def __call__(self, *args, **kw):
return call_func(self, *args, *kw)
return NewClass
or the return could even be NewClass() [return an instance] if this is
a one off.
That said, I'm not really sure what this behavior is good for.
-Jack
Cheers Jack for the response.
The behaviour is to not derive from a class, but rather allow
the decorators to do so... so I would like to iterate over
a list of functions (don't care what they're called) and then
inject the function as a method. If needs be at run-time.
Say I have 1000 functions (okay, admittedly over quoted), but
I don't want every programmer to inherit from 'B' or 'C', but
to 'inject'. So the idea is that classes are pre-defined, have
predictable behaviour, *except* the __call__ is different.
You are correct in this. Why do I want that behaviour? -
- It's easier, no inheriting from a class, when needs not.
- Some integrity (anyone can define a function and 'inject' to the
Management class)
- Easier maintainability - maybe :)
for i in function_list:
i = inject(function_list)
At the end of the day:
def blah(x, y, z):
pass
That should be the callable of the object.
I'm still not sure why you are trying to do this, but you can do it
with delegation. Have the parent class's __call__ look for an
instance attribute named call_this and then call it, ex/
class A():
def __call__(self, *args, **kw):
self.call_this(*args, **kw) # we grab this off the instance
ob = A()
def my_func(*stuff): pass
ob.call_this = my_func
-Jack
--
http://mail.python.org/mailman/listinfo/python-list
Re: class inheritance
On Mar 13, 11:37 am, Jack Diederich jackd...@gmail.com wrote: If Fraction.__add__ returns a new object but the subclass Value is compatible (as I would except since it is a sublcass) then just change all references in Franction.__add__ to be more generic, ex/ class Franction(): def __add__(self, other): return self.__classs__(self.denominator + other.denominator) That way if __add__ is called by an instance of a subclass it will return an instance of that subclass. Yes, I think the OP understands that, and also understands that he would have to do the same thing for __sub__, __div__, __rsub__, __radd__, etc. That's why I suggested that, instead of writing all that tedious code, he could write code that writes the tedious code :-) As Terence Parr of ANTLER fame asks: Why program by hand in five days what you can spend five years of your life automating? Pat -- http://mail.python.org/mailman/listinfo/python-list
RE: python to exe
Does anyone know of a good python to stand alone exe compiler? Thanks, -Robin I tried several such tools and found the easiest one: Pyinstaller ( http://www.pyinstaller.org/ ) but it does not make your script faster, if you want it as fast as C language, please try PythoidC ( http://pythoidc.googlecode.com ) -- http://mail.python.org/mailman/listinfo/python-list
[ANN] Pyspread 0.0.14b released
Pyspread 0.0.14b released = I am pleased to announce the new release 0.0.14b of pyspread. About: -- Pyspread is a cross-platform Python spreadsheet application. It is based on and written in the programming language Python. Instead of spreadsheet formulas, Python expressions are entered into the spreadsheet cells. Each expression returns a Python object that can be accessed from other cells. These objects can represent anything including lists or matrices. Pyspread runs on Linux and *nix platforms with GTK support as well as on Windows (XP and Vista tested). On Mac OS X, some icons are too small but the application basically works. Homepage http://pyspread.sourceforge.net New features * Cell border can be changed independently. * Cell access allows negative indices when not slicing. Enjoy Martin -- http://mail.python.org/mailman/listinfo/python-list
Re: python to exe
Mark Lawrence breamore...@yahoo.co.uk writes: I'm certain that members of the Guinea Pig Club might have something to say on that one, see :- http://en.wikipedia.org/wiki/Guinea_Pig_Club Interesting. My mum is a retired surgeon and in the mid 1980s she attended a course in plastic surgery and among other things she learnt that plastic surgery got going for real during WWII 'thanks' to all pilots with burns. I have forwarded the link above to her. /Martin -- http://mail.python.org/mailman/listinfo/python-list
Re: Use python and Jython together? (newbie)
Karjer Jdfjdf wrote: I'm pretty new at programming and want some advice on mixing Jython and Python. I want to use Jython to access some Java libraries, but I want to keep developing in normal Python. Some modules I use a lot are not available in Jython. The bulk of my programming is in Python but I want to use Java 2D libraries for graphical presentation of data generated in normal Python. Is it possible that I generate data in Python and then pass it through to a Jython program to visualise the data. You could have 2 scripts running, one in CPython and the other in Jython, communicating via sockets. You would need to decide on a protocol, perhaps passing the data as strings encoded in UTF-8. -- http://mail.python.org/mailman/listinfo/python-list
Re: class inheritance
On Mar 13, 9:37 am, Jack Diederich jackd...@gmail.com wrote: If Fraction.__add__ returns a new object but the subclass Value is compatible (as I would except since it is a sublcass) then just change all references in Franction.__add__ to be more generic, ex/ class Franction(): def __add__(self, other): return self.__classs__(self.denominator + other.denominator) That way if __add__ is called by an instance of a subclass it will return an instance of that subclass. That was my first thought, because I had originally assumed that's the way Fraction worked. However, a) it's easier to do the overriding in my own class than patching Fraction (or at least no harder), and 2) Fraction is only doing the same thing that int does, so it's hard to justify a patch. I think Patrick's solution might be the tidiest one. I'll give it a shot (thanks, Patrick). -- http://mail.python.org/mailman/listinfo/python-list
how to start a python script only once
Hi, I'd like to make sure, that a certain python program will only be run once per host. (linux/windows) so if the program is started a second time it should just terminate and let the other one run. This does not have to be the fastest solution, but it should be reliable. I have a few ideas, but wonder, which one is the most common My ideas so far: pid file and file locking -- create a file like program.pid with the pid of the running program an use file locking to avoid race connditions. However I currently don't know how to do file locking under windows and I don't know how to do file lockng with python and linux. I'll start googling. sqlite and locking quite some time ago I used a mysql table and locking as an inter-host mutex. Perhaps sqlite would be good enough for an inter process mutex for processes on the same host, but I don't know it well enough. interprocess mutex well I even don't know whether something like this exists on linux / windows Thanks in advanced for any tips N -- http://mail.python.org/mailman/listinfo/python-list
Re: python to exe
Steven D'Aprano st...@remove-this-cybersource.com.au writes: As the old proverb goes: give a man a fish, and you feed him for a day. Teach him how to fish, and he has food forever. True, but you don't teach someone fishing by poking an eye out with a fishing rod. I'm an old-fashioned kind of guy, and don't like LMGTFY because it is tiresome and requires Javascript. I prefer: My reply had little to do with lmgtfy and all to do with hiding it behind tinyurl. But even then, why not do what you just did: give a URL to google directly. For quite some time I thought that comp.lang.perl.misc was quite unfriendly because of a certain attitude. comp.lang.python was quite a refreshment for a while: very newbie friendly, less pissing contests, etc. (but way more fanboism). Yesterday was a sady day: I finally had to conclude that it was only wishful thinking on my part; there is no difference. -- John Bokma j3b Hacking Hiking in Mexico - http://johnbokma.com/ http://castleamber.com/ - Perl Python Development -- http://mail.python.org/mailman/listinfo/python-list
Re: Some PyCon videos won't play
On 3/13/2010 11:23 AM, Lee Harr wrote: I am having a great time watching videos from PyCon. Thanks to everyone who presented, and to those who did such a great job putting the videos up at: http://pycon.blip.tv/ My trouble is that, although most of the videos play perfectly, there are a few that refuse to play at all. Like: Python 101 http://pycon.blip.tv/file/3322312/ Using Python to Create Robotic Simulations for Planetary Exploration http://pycon.blip.tv/file/3332780/ Saturday Morning Lightning talks http://pycon.blip.tv/file/3264041/ Is anyone else having trouble with these? Yes, 'spinner' spins indefinitely, while others load and play. -- http://mail.python.org/mailman/listinfo/python-list
Re: Decorator to inject function into __call__ of a class
On Sat, Mar 13, 2010 at 8:19 AM, Jon Clements jon...@googlemail.com wrote: The name 'some_function' is completely redundant -- don't need it, don't actually care about the function afterwards, as long as it becomes a __call__ of a 'B' *instance*. Special methods are looked up on the class, not the instance, so you can't dot his. However, from reading this thread, I think you're just a bit hung up on naming: you don't need these random / arbitrary functions to be the __call__ on an instance. You need these functions to be called when said instance is called. The easiest way to do that is simply define on the class: def __call__(self, *args, **kwargs): self.func(*args, **kwargs) Then while you are iterating over your list of a thousand functions and making instances, just assign each instance's func attribute. So, for fn in [function_one, function_two, function_three, function_four]: inst = B() inst.func = fn Now, if you really like the decorator syntax, sure: def inject(klass): ... def decorator(fn): ... inst = klass() ... inst.func = fn ... return inst ... return decorator ... class A: ... def __init__(self): ... pass ... def __call__(self, *args, **kwargs): ... self.func(*args, **kwargs) ... @inject(A) ... def test(mmm): ... print mmm ... test __main__.A instance at 0x1004a4fc8 test(Hello) Hello Now, I don't -fully- understand what you're trying to do so this may not be precisely the right thing, but you should be able to adapt the theory. --S -- http://mail.python.org/mailman/listinfo/python-list
Re: Decorator to inject function into __call__ of a class
On 13 Mar, 17:42, Jack Diederich jackd...@gmail.com wrote:
On Sat, Mar 13, 2010 at 12:10 PM, Jon Clements jon...@googlemail.com wrote:
On 13 Mar, 16:42, Jack Diederich jackd...@gmail.com wrote:
On Sat, Mar 13, 2010 at 11:19 AM, Jon Clements jon...@googlemail.com
wrote:
This is semi-experimental and I'd appreciate opinions of whether it's
the correct design approach or not. It seems like a good idea, but it
doesn't mean it is.
I have a class 'A', this provides standard support functions and
exception handling.
I have 'B' and 'C' which specialise upon 'A'
What I'd like to achieve is something similar to:
@inject(B):
def some_function(a, b):
pass # something useful
The name 'some_function' is completely redundant -- don't need it,
don't actually care about the function afterwards, as long as it
becomes a __call__ of a 'B' *instance*.
I've basically got a huge list of functions, which need to be the
callable method of an object, and possibly at run-time, so I don't
want to do:
class Something(B):
def __call__(self, etc.. etc...):
pass # do something
I've got as far as type(somename, (B,), {}) -- do I then __init__ or
__new__ the object or...
In short, the function should be the __call__ method of an object that
is already __init__'d with the function arguments -- so that when the
object is called, I get the result of the the function (based on the
objects values).
I'm not sure exactly what you are asking for, but if what you want is
a bunch of different objects that vary only by their class's __call__
you could do it with a function that returns a new class based on A
but with a new __call__:
def make_new_call_class(base_class, call_func):
class NewClass(base_class):
def __call__(self, *args, **kw):
return call_func(self, *args, *kw)
return NewClass
or the return could even be NewClass() [return an instance] if this is
a one off.
That said, I'm not really sure what this behavior is good for.
-Jack
Cheers Jack for the response.
The behaviour is to not derive from a class, but rather allow
the decorators to do so... so I would like to iterate over
a list of functions (don't care what they're called) and then
inject the function as a method. If needs be at run-time.
Say I have 1000 functions (okay, admittedly over quoted), but
I don't want every programmer to inherit from 'B' or 'C', but
to 'inject'. So the idea is that classes are pre-defined, have
predictable behaviour, *except* the __call__ is different.
You are correct in this. Why do I want that behaviour? -
- It's easier, no inheriting from a class, when needs not.
- Some integrity (anyone can define a function and 'inject' to the
Management class)
- Easier maintainability - maybe :)
for i in function_list:
i = inject(function_list)
At the end of the day:
def blah(x, y, z):
pass
That should be the callable of the object.
I'm still not sure why you are trying to do this, but you can do it
with delegation. Have the parent class's __call__ look for an
instance attribute named call_this and then call it, ex/
class A():
def __call__(self, *args, **kw):
self.call_this(*args, **kw) # we grab this off the instance
ob = A()
def my_func(*stuff): pass
ob.call_this = my_func
-Jack
Jack, thanks very much for your replies -- hugely appreciated.
I was delayed by the missus calling me for dinner - I'd forgotten
we had a stew going in the slow cooker, and she can't make
dumplings to save her life :)
If I can re-explain slightly, say I have a class 'compute':
class Compute(object):
def __init__(self, something):
self.something = something
# misc other methods here.
then...
class ComputeAdd(Compute):
pass
If I do,
@inject
def ComputeAdd(fst, snd):
return fst + snd
The end result should be a new class called ComputeAdd __init__'d with
fst and snd,
which when called, returns fst + snd.
Hope that makes sense.
Cheers,
Jon.
--
http://mail.python.org/mailman/listinfo/python-list
Re: python to exe
Does anyone know of a good python to stand alone exe compiler? Thanks, -Robin I tried several such tools and found the easiest one: Pyinstaller ( http://www.pyinstaller.org/ ) Don't forget cx_freeze! I found it to work pretty easy, and it also works for py3k. Almar -- http://mail.python.org/mailman/listinfo/python-list
Re: python to exe
On 03/13/10 19:23, Steven D'Aprano wrote: On Sat, 13 Mar 2010 12:52:39 -0600, John Bokma wrote: For quite some time I thought that comp.lang.perl.misc was quite unfriendly because of a certain attitude. comp.lang.python was quite a refreshment for a while: very newbie friendly, less pissing contests, etc. (but way more fanboism). Yesterday was a sady day: I finally had to conclude that it was only wishful thinking on my part; there is no difference. You were the first one to inject abuse into this thread. There's a big difference between a mildly sarcastic link and dropping the F-word at one of the more helpful and respected members of the community. Perhaps you are projecting your own hostility and aggro onto others? John's thought process is a slippery slope and I make the same 'mistake' (notice the quotes please :-)) so often it would seem I won't learn it ever. However on the rare occasion I notice that I am making the mistake I say to myself: The view of a number of individuals do NOT necessarily represent the view of the majority unless proven otherwise by that actual majority. -- mph -- http://mail.python.org/mailman/listinfo/python-list
Re: class inheritance
On Mar 13, 9:03 am, JLundell jlund...@pobox.com wrote: I've got a subclass of fractions.Fraction called Value; it's a mostly trivial class, except that it overrides __eq__ to mean 'nearly equal'. However, since Fraction's operations result in a Fraction, not a Value, I end up with stuff like this: x = Value(1) + Value(2) where x is now a Fraction, not a Value, and x == y uses Fraction.__eq__ rather than Value.__eq__. This appears to be standard Python behavior (int does the same thing). I've worked around it by overriding __add__, etc, with functions that invoke Fraction but coerce the result. But that's tedious; there are a lot of methods to override. So I'm wondering: is there a more efficient way to accomplish what I'm after? It's a tad unfortunately Python doesn't make this easier. If I had to do it more than once I'd probably write a mixin to do it: class ArithmeticSelfCastMixin(object): def __add__(self,other): return self.__class__(super(ArithmeticSelfCastMixin,self).__add__(other) # etc. class Value(ArithmeticSelfCastMixin,fraction.Fraction): pass However, I want to warn you about overriding __eq__ to mean almost equal: it can have unexpected results so I don't recommend it. Two of the main issues with it are: 1. It violates the transitive property (If A == B and B == C, then A == C) which most programmers expect to be true. 2. It will give unpredictable results when the objects are used in sets or as dictionary keys. Those thow types expect the transitive property to be true. If you are going to redefine __eq__ to mean almost equal, then at least define __hash__ to raise NotImplementedError so that Python will refuse to use them in sets or as dictionary keys: def __hash__(self): raise NotImplementedError Carl Banks -- http://mail.python.org/mailman/listinfo/python-list
Re: Python for newbies (Pythno users group in Macedonia)
Дамјан Георгиевски wrote: Hi all, we are starting with bi-monthly Python User Group meetings in Skopje, Macedonia. The meetings are targeted for both beginners and more experienced users. ... http://us.pycon.org/2010/conference/schedule/event/108/ HTH, Mike -- Mike C. Fletcher Designer, VR Plumber, Coder http://www.vrplumber.com http://blog.vrplumber.com -- http://mail.python.org/mailman/listinfo/python-list
Re: building a dict
On 13 mar, 18:16, ru...@yahoo.com wrote:
On Mar 13, 9:26 am, ru...@yahoo.com wrote: That should be:
d = {}
for item in m:
key = item[0]; value = item[1]
if key is None or value is None: continue
if key not in dict:
d[key] = [1, value]
else:
d[key][0] += 1
d[key][1] += value
That's it. Any other mistakes, you find 'em.
Thank you all. Your answers are more than valuable to me. I'll study
them carefully, but no doubt, my post has been answered.
By the way, I suppose I am the OP. Since I am not an native English
speaking person, I do not know what it stands for. Perhaps you can
tell me.
From what I see from your posts, you would have preferred that I
included in my original post my for loop, so that the post is not so
abstract. I have taken note and I'll make it better next time.
Thank you for your help.
Vicente Soler
--
http://mail.python.org/mailman/listinfo/python-list
Re: building a dict
On Mar 13, 2:42 pm, vsoler vicente.so...@gmail.com wrote: By the way, I suppose I am the OP. Since I am not an native English speaking person, I do not know what it stands for. Perhaps you can tell me. OP means Original Poster (the person who started the discussion) or sometimes Original Post, depending on context. -- http://mail.python.org/mailman/listinfo/python-list
Re: python to exe
Mark Lawrence wrote: I'm certain that members of the Guinea Pig Club might have something to say on that one, see :- http://en.wikipedia.org/wiki/Guinea_Pig_Club You mean, something like: That's not funny? -- http://mail.python.org/mailman/listinfo/python-list
Re: Use python and Jython together? (newbie)
On Mar 13, 8:10 am, Christian Heimes li...@cheimes.de wrote: Karjer Jdfjdf wrote: I'm pretty new at programming and want some advice on mixing Jython and Python. I want to use Jython to access some Java libraries, but I want to keep developing in normal Python. Some modules I use a lot are not available in Jython. The bulk of my programming is in Python but I want to use Java 2D libraries for graphical presentation of data generated in normal Python. Is it possible that I generate data in Python and then pass it through to a Jython program to visualise the data. You can't mix Jython and Python in one program. But you can use other means to create bindings for Java code. JCC (http://pypi.python.org/pypi/JCC/2.5.1) is a very powerful code generator for CPython. I have not tried it myself but it seems to be possible. http://jpype.sourceforge.net/ -- http://mail.python.org/mailman/listinfo/python-list
Clustering and automated configuration deployment toolkit with Python
I'd like to write an open source clustering (for computation and general use) and automation of configuration/deployment in Python. It's main purpose is to be used in academic environments. It would be something like running numpy/simpy code (and other custom python code) on a set of machines in a distributed fashion (e.g. splitting tasks, doing certain bits on some machines, other sub-tasks on other machines, etc). The cluster could be used in at least two ways: - submit code/files via a web interface, monitor the task via the web interface and download the results from the master node (userweb interfacemaster) - run code directly from another machine on the cluster (as if it were a subprocess or something like this) Requirements (so far): - support the Ubuntu Linux distribution in the initial iteration - be easy to extend to other OS-es and package managers - try to be 3.x compatible where dual compatibility is possible (2.x and 3.x) - it will support Python 2.5-2.6 - document required changes to the 2.x only code to make it work on 3.x - make it easy to submit code directly from python scripts to the cluster (with the right credentials) - support key based authentication for job submission - should talk to at least one type of RDBMS to store various types of data - the cluster should be able to kill a task on nodes automatically if it executes for too long or requires too much memory (configurable) - should be modular (use automation configuration or just clustering) Therefore, I'd like to know a few things: Is there a clustering toolkit already available for python? What would the recommended architecture be ? How should the user code interface with the clustering system's code? How should the results be stored (at the node and master level)? Should threading be supported in the tasks? How should they be returned to the Master node(s)? (polling, submitted by the nodes, etc) What libraries should be used for this? (e.g. fabric as a library, pyro, etc) Any other suggestions and pieces of advice? Should Fabric be used in this clustering system for automation? If not, what else? Would simply using a wrapper written in python for the 'ssh' app be ok? Would the following architecture be ok? Master: splits tasks into sub-tasks, sends them to nodes - provided the node's load isn't greater than a certain percentage, gets results, stores and provides configuration to nodes, stores results, etc Node: runs code, applies configuration, submits the results to the master, etc If this system actually gets python-level code submission inside, how should it work? The reason I posted this set of questions and ideas is that I'd like this to be as flexible and usable as possible. Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Feeding differeent data types to a class instance?
Hi I have couple classes in the form of class Vector: def __init__(self,x,y,z): self.x=x self.y=y self.z=z This works fine for me. However I want to be able to provide a list, tuple as well as individual arguments like below myvec=Vector(1,2,3) This works well However I also want to be able to do vect=[1,2,3] myvec=Vec(vect) I want this class to accept multiple data types but process them as they are same when the classs deals with the instances. thanks -- http://mail.python.org/mailman/listinfo/python-list
Re: Feeding differeent data types to a class instance?
On Sun, 14 Mar 2010 00:34:55 -, kuru maymunbe...@gmail.com wrote: Hi I have couple classes in the form of class Vector: def __init__(self,x,y,z): self.x=x self.y=y self.z=z This works fine for me. However I want to be able to provide a list, tuple as well as individual arguments like below myvec=Vector(1,2,3) This works well However I also want to be able to do vect=[1,2,3] myvec=Vec(vect) You can do something like: class Vector(object): def __init__(self, x, y=None, z=None): if isinstance(x, list): self.x = x[0] self.y = x[1] self.z = x[2] else: self.x = x self.y = y self.z = z but this gets messy quite quickly. The usual wisdom these days is to write yourself a separate class method to create your object from a different type: class Vector(object): ... def __init__ as you did before ... @classmethod def from_list(cls, lst): return cls(lst[0], lst[1], lst[2]) vect = [1,2,3] myvec = Vector.from_list(vect) -- Rhodri James *-* Wildebeeste Herder to the Masses -- http://mail.python.org/mailman/listinfo/python-list
Re: python to exe
On Sat, 13 Mar 2010 12:52:39 -0600, John Bokma j...@castleamber.com wrote: Steven D'Aprano st...@remove-this-cybersource.com.au writes: As the old proverb goes: give a man a fish, and you feed him for a day. Teach him how to fish, and he has food forever. True, but you don't teach someone fishing by poking an eye out with a fishing rod. I'm an old-fashioned kind of guy, and don't like LMGTFY because it is tiresome and requires Javascript. I prefer: My reply had little to do with lmgtfy and all to do with hiding it behind tinyurl. But even then, why not do what you just did: give a URL to google directly. For quite some time I thought that comp.lang.perl.misc was quite unfriendly because of a certain attitude. comp.lang.python was quite a refreshment for a while: very newbie friendly, less pissing contests, etc. (but way more fanboism). Yesterday was a sady day: I finally had to conclude that it was only wishful thinking on my part; there is no difference. There was a time, when the internet was young and most newbies couldn't find their own backsides with both hands, that your conclusions would be well placed.That time has long passed: Newsgroups are a long way down the hierarchy since those times and anyone turning up here nowadays _has_ heard of Google. If they haven't used it, I don't really consider the gentle reminder that LMGTFY gives too harsh. If you do, you're too much of a gentle soul to be on the internet at all; someone might say Boo to you at any moment. Beware. DaveM -- http://mail.python.org/mailman/listinfo/python-list
Re: building a dict
On Sat, 13 Mar 2010 13:42:12 -0800 (PST) vsoler vicente.so...@gmail.com wrote: By the way, I suppose I am the OP. Since I am not an native English speaking person, I do not know what it stands for. Perhaps you can tell me. Perhaps you can find out yourself: http://www.urbandictionary.com/define.php?term=op /W -- INVALID? DE! -- http://mail.python.org/mailman/listinfo/python-list
Re: python to exe
On Sun, 14 Mar 2010 11:20:15 +1300, Gib Bogle wrote: Mark Lawrence wrote: I'm certain that members of the Guinea Pig Club might have something to say on that one, see :- http://en.wikipedia.org/wiki/Guinea_Pig_Club You mean, something like: That's not funny? Or possibly That's hilarious!!!. Gallows humour is sometimes hard to predict. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: Feeding differeent data types to a class instance?
On Sat, 13 Mar 2010 16:34:55 -0800, kuru wrote: I want this class to accept multiple data types but process them as they are same when the classs deals with the instances. The usual term for this is polymorphism. myvec=Vector(1,2,3) vect=[1,2,3] myvec=Vec(vect) I assume you mean Vector in the last line. I find this the easiest way to handle this situation: class Vector(object, *args): if len(args) == 1: # Assume the caller passed a list argument. args = args[0] x, y, z = args # Unpack the arguments. # then process as normal. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: NoSQL Movement?
On Fri, Mar 12, 2010 at 11:23 AM, Paul Rubin no.em...@nospam.invalid wrote: D'Arcy J.M. Cain da...@druid.net writes: Just curious, what database were you using that wouldn't keep up with you? I use PostgreSQL and would never consider going back to flat files. Try making a file with a billion or so names and addresses, then compare the speed of inserting that many rows into a postgres table against the speed of copying the file. Also consider how much work it is to partition data from flat files versus PostgreSQL tables. The only thing I can think of that might make flat files faster is that flat files are buffered whereas PG guarantees that your information is written to disk before returning Don't forget all the shadow page operations and the index operations, and that a lot of these operations require reading as well as writing remote parts of the disk, so buffering doesn't help avoid every disk seek. Plus the fact that your other DB operations slow down under the load. -- Jonathan Gardner jgard...@jonathangardner.net -- http://mail.python.org/mailman/listinfo/python-list
[issue8130] except-as in Py3 eats variables
Ezio Melotti ezio.melo...@gmail.com added the comment: In this case I don't see much difference between deleting a variable or assigning it to something else. This code works on both Python 2 and 3: e = 'test' try: pass# no errors raised here ... except Exception as e: pass # this is not executed ... e 'test' If you do this instead: e = 'test' try: raise ValueError# raise the error ... except Exception as e: pass # this is executed ... On both 2.x and 3.x 'e' doesn't refer to 'test' anymore in the moment that the exception is captured by the except, so what happens next to the new e is not related to what the old e was. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8130 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8128] String interpolation with unicode subclass fails to call __str__
Changes by Eric Smith e...@trueblade.com: -- nosy: +eric.smith ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8128 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8130] except-as in Py3 eats variables
Florent Xicluna florent.xicl...@gmail.com added the comment: See also #4617, with some patch. -- nosy: +flox superseder: - SyntaxError when free variable name is also an exception target ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8130 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue4617] SyntaxError when free variable name is also an exception target
Changes by Florent Xicluna florent.xicl...@gmail.com: Removed file: http://bugs.python.org/file16341/unnamed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4617 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue4617] SyntaxError when free variable name is also an exception target
Changes by Florent Xicluna florent.xicl...@gmail.com: -- components: +Interpreter Core nosy: +flox stage: - test needed type: - behavior ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4617 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8128] String interpolation with unicode subclass fails to call __str__
Changes by Florent Xicluna florent.xicl...@gmail.com: -- nosy: +flox ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8128 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8129] Wrong arguments in sqlite3.connect() documentation
Changes by Florent Xicluna florent.xicl...@gmail.com: -- priority: - normal stage: - needs patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8129 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8131] Delivery Status Notification (Failure)
New submission from reynaldo renbe...@gmail.com: www.google.com/chromebeta/what a browser -- Forwarded message -- From: Mail Delivery Subsystem mailer-dae...@googlemail.com Date: Mar 13, 2010 1:31 AM Subject: Delivery Status Notification (Failure) To: renbe...@gmail.com Delivery to the following recipient failed permanently: homepagewebsitebrow...@gmail.com Technical details of permanent failure: The email account that you tried to reach does not exist. Please try double-checking the recipient's email address for typos or unnecessary spaces. Learn more at http://mail.google.com/support/bin/answer.py?answer=6596 - Original message - Return-Path: renbe...@gmail.com Received-SPF: pass (google.com: domain of renbe...@gmail.com designates 10.216.85.9 as permitted sender) client-ip=10.216.85.9; Authentication-Results: mr.google.com; spf=pass (google.com: domain of renbe...@gmail.com designates 10.216.85.9 as permitted sender) smtp.mail= renbe...@gmail.com; dkim=pass header.i=renbe...@gmail.com Received: from mr.google.com ([10.216.85.9]) by 10.216.85.9 with SMTP id t9mr1284787wee.79.1268472666728 (num_hops = 1); Sat, 13 Mar 2010 01:31:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type; bh=e95TaoJEoSEO0fI8PxX3gWmPAWk7MpFGuxo5WXR7c5s=; b=ryAtBQKbrkyqTmY9I7u9+8+TU18Nn0sUpEQdUKNMv9qLD4DcFTgrs5+Cl9yajGzLRR blBWEtQT7JePAJSXemEJWH+qwSlpv0j/MHONzSYvtImdpxUAH5m5ROAIb2syRtJ3MsC0 6Z6VTwMh9+3tlrGMKddmKV0w7EuEVGvWLM1BA= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=PopzoxmDZC0tp09qENK/OV5l98fQkpgX8A/ZezTstyFIONBDDC6ky9PGrzUk17u1zq v1DYZ5TdIpXdC+/hyA9QNW7XfEST/yG7jqSBeVA12Fmly1EZ7VRps+MBCWVBXFyZvnhR uihbsR+Wn2fR+8kPZplTiwSfHE/5J0fnA/hyY= MIME-Version: 1.0 Received: by 10.216.85.9 with SMTP id t9mr1284787wee.79.1268472666716; Sat, 13 Mar 2010 01:31:06 -0800 (PST) In-Reply-To: a4f83ee11003130105m66a12835rba0a259420917...@mail.gmail.com References: a4f83ee11003130105m66a12835rba0a259420917...@mail.gmail.com Date: Sat, 13 Mar 2010 01:31:06 -0800 Message-ID: a4f83ee11003130131o12d5386ft2393da2951edc...@mail.gmail.com Subject: Fwd: Re: Few tweaks From: reynaldo bendijo renbe...@gmail.com To: homepagewebsitebrow...@gmail.com Content-Type: multipart/alternative; boundary=0016e6d778afb50bc50481ab4e58 www.google.com/chromebeta/what a browser -- Forwarded message -- From: reynaldo b... -- files: unnamed messages: 100998 nosy: renben severity: normal status: open title: Delivery Status Notification (Failure) Added file: http://bugs.python.org/file16531/unnamed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8131 ___p/p pa href=http://www.google.com/chromebeta/what;www.google.com/chromebeta/what/a a browser/p pblockquote type=cite-- Forwarded message --brFrom: quot;Mail Delivery Subsystemquot; lt;a href=mailto:mailer-dae...@googlemail.com;mailer-dae...@googlemail.com/agt;brDate: Mar 13, 2010 1:31 AMbr Subject: Delivery Status Notification (Failure)brTo: lt;a href=mailto:renbe...@gmail.com;renbe...@gmail.com/agt;brbrDelivery to the following recipient failed permanently:br br   a href=mailto:homepagewebsitebrow...@gmail.com;homepagewebsitebrow...@gmail.com/abr br Technical details of permanent failure:br The email account that you tried to reach does not exist. Please try double-checking the recipient#39;s email address for typos or unnecessary spaces. Learn more at a href=http://mail.google.com/support/bin/answer.py?answer=6596; target=_blankhttp://mail.google.com/support/bin/answer.py?answer=6596/abr br - Original message -br br Return-Path: lt;a href=mailto:renbe...@gmail.com;renbe...@gmail.com/agt;br Received-SPF: pass (a href=http://google.com; target=_blankgoogle.com/a: domain of a href=mailto:renbe...@gmail.com;renbe...@gmail.com/a designates 10.216.85.9 as permitted sender) client-ip=10.216.85.9;br Authentication-Results: a href=http://mr.google.com; target=_blankmr.google.com/a; spf=pass (a href=http://google.com; target=_blankgoogle.com/a: domain of a href=mailto:renbe...@gmail.com;renbe...@gmail.com/a designates 10.216.85.9 as permitted sender) smtp.mail=a href=mailto:renbe...@gmail.com;renbe...@gmail.com/a; dkim=pass header.i=a href=mailto:renbe...@gmail.com;renbe...@gmail.com/abr Received: from a href=http://mr.google.com; target=_blankmr.google.com/a ([10.216.85.9])br     by 10.216.85.9 with SMTP id t9mr1284787wee.79.1268472666728 (num_hops = 1);br     Sat, 13 Mar 2010 01:31:06 -0800 (PST)br DKIM-Signature: v=1; a=rsa-sha256;
[issue8131] Delivery Status Notification (Failure)
Changes by Ezio Melotti ezio.melo...@gmail.com: -- resolution: - invalid stage: - committed/rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8131 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue7845] complex.__lt__ should return NotImplemented instead of raising TypeError
Mark Dickinson dicki...@gmail.com added the comment: Applied in r78902. -- resolution: - accepted stage: patch review - committed/rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue7845 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8014] Setting a T_INT attribute raises internal error
Mark Dickinson dicki...@gmail.com added the comment: Thanks, Benjamin! test_structmembers.py looks perfect. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8014 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8014] Setting a T_INT attribute raises internal error
Mark Dickinson dicki...@gmail.com added the comment: Tests for this issue, currently failing on T_INT/T_UINT (internal error), T_LONG/T_ULONG (fails to raise TypeError), T_PYSSIZET (internal error). The older patch only fixes the T_PYSSIZET failures; I'm working on a fix for the others. -- Added file: http://bugs.python.org/file16532/issue8014_tests.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8014 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8014] Setting a T_INT attribute raises internal error
Mark Dickinson dicki...@gmail.com added the comment: Internal errors for T_UINT and T_PYSSIZET fixed in r78918. The fix needs to be backported to the release31-maint branch, but I don't think it's urgent enough to try getting it in between 3.1.2 rc1 and 3.1.2 final. There's still a problem with testing repeated attribute setting for T_UINT and T_ULONG; for some reason, the first attempt to set a T_UINT attribute to something invalid correctly produces TypeError, but an immediately following second attempt doesn't raise TypeError---this can be seen by uncommenting the T_UINT and T_ULONG bits in test_bad_assignments. Am investigating. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8014 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8014] Setting a T_INT attribute raises internal error
Mark Dickinson dicki...@gmail.com added the comment: Fixed reason for failing tests (there was a bad error check in structmembers.c that compared a return value with (unsigned int)-1 instead of (unsigned long)-1), and re-enabled those tests, in r78920. Leaving open for the backport to 3.1. -- versions: -Python 3.2 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8014 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8132] email.header.decode_header makes mistakes
New submission from grumetz jpgrum...@free.fr:
Examples:
s = '=?UTF-8?B?QWNjdXPDqSBkZSByw6ljZXB0aW9uIChhZmZpY2jDqSkgLSA=?=Arobase !'
decode_header(s) ---
[('=?UTF-8?B?QWNjdXPDqSBkZSByw6ljZXB0aW9uIChhZmZpY2jDqSkgLSA=?=Arobase !',
None)]
which seems bad...
but
ss ='=?UTF-8?B?QWNjdXPDqSBkZSByw6ljZXB0aW9uIChhZmZpY2jDqSkgLSA=?= Arobase !'
decode_header(ss) ---
[('Accus\xc3\xa9 de r\xc3\xa9ception (affich\xc3\xa9) - ', 'utf-8'), ('Arobase
!', None)]
which seems good...
--
components: Library (Lib)
messages: 101004
nosy: grmtz
severity: normal
status: open
title: email.header.decode_header makes mistakes
type: behavior
versions: Python 2.6
___
Python tracker rep...@bugs.python.org
http://bugs.python.org/issue8132
___
___
Python-bugs-list mailing list
Unsubscribe:
http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8073] Test fail for sha512
Chris Lieb chris.lieb.hotmail+pyt...@gmail.com added the comment: Just for reference, I tried applying all of the patches in the SuSE 11.2 source RPM python-2.6.4.92-3.1.src.rpm from http://software.opensuse.org/search?q=python and rebuilding and retesting, but got the same results as using the vanilla Python 2.6.4 sources. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8073 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8011] traceback tb_lineno example needs correction for Python3
Michael Newman michael.b.new...@gmail.com added the comment: No problem. Please note its actually fixed in r78895 (trunk), r78896 (py3k) and r78897 (release31-maint). Your previous message had the svn revision numbers off by 1000. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8011 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue3928] os.mknod missing on Solaris
Jesús Cea Avión j...@jcea.es added the comment: The patch seems to be trivial. I need review, specially compiling under non-Solaris OS. I plan to commit this patch to 2.6, 2.7, 3.1 and 3.2. Must I update NEWS? -- assignee: - jcea keywords: +needs review, patch nosy: +jcea priority: - normal Added file: http://bugs.python.org/file16533/mknod-solaris.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3928 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue3928] os.mknod missing on Solaris
Changes by Jesús Cea Avión j...@jcea.es: -- stage: - patch review ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3928 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue3871] cross and native build of python for mingw32 with distutils
Roumen Petrov bugtr...@roumenpetrov.info added the comment: distutils from trunk is restored to state before 9 months ago -- Added file: http://bugs.python.org/file16534/python-trunk-20100313-MINGW.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3871 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue3928] os.mknod missing on Solaris
Antoine Pitrou pit...@free.fr added the comment: Compiles fine under Debian stable. You shouldn't commit to 2.6 until 2.6.5 is released, though. If you want to do so, contact Barry first. -- nosy: +pitrou ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3928 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue3928] os.mknod missing on Solaris
Martin v. Löwis mar...@v.loewis.de added the comment: You do need a NEWS entry. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3928 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue3871] cross and native build of python for mingw32 with distutils
Tarek Ziadé ziade.ta...@gmail.com added the comment: Roumen, I am moving all the new work in distutils into distutils2, and distutils is going to be frozen. Do you want to work on this feature in distutils2 ? (which is distutils code base before I started to revert things) Let me know so I mark this issue under Distutils2 -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3871 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8111] docs.python.org/download.html unhelpful.
Georg Brandl ge...@python.org added the comment: Raising to release blocker status to get the changes that fix this and that are already in 2.6 approved by Barry. The revisions are: r78907, r78914, r78923. I'm attaching a patch with the collective diff. In short, these changes mirror those done on the other active branches, which makes sure that all daily builds are done consistently. Code is added only to the Doc Makefile and the download documentation template, both of which are not relevant to the released distribution. Another rc is definitely not needed. With these changes in place, we have: - more consistent daily documentation builds (no longer coupled to the test runs by Neal) - daily builds suspended for stable branches during the release process - documentation downloads also for the development builds - strict separation between released docs and daily updated docs -- assignee: georg.brandl - barry keywords: +patch nosy: +barry priority: high - release blocker versions: +Python 2.5, Python 2.6, Python 2.7, Python 3.1, Python 3.2, Python 3.3 Added file: http://bugs.python.org/file16535/26changes.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8111 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8107] test_distutils fails on Windows in 2.6.5rc2
Martin v. Löwis mar...@v.loewis.de added the comment: The patch in its current form is incomplete: xxmodule.c won't end up on the target system, since msi.py doesn't package it. So that would need to be changed as well. With the current release26-maint branch, test_distutils now passes, both with xxmodule.c present, and with it being absent. If it is present, test_distutils prints a number of additional output lines, starting with Creating library I also agree that the change is too heavy for the 2.6 maintenance release. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8107 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8107] test_distutils fails on Windows in 2.6.5rc2
Tarek Ziadé ziade.ta...@gmail.com added the comment: Ok then, I am applying Barry's suggestion right now in release26-maint then -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8107 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8107] test_distutils fails on Windows in 2.6.5rc2
Tarek Ziadé ziade.ta...@gmail.com added the comment: done in r78935. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8107 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8102] test_distutils fails on 2.6.5rc1: No module named setuptools_build_ext
Tarek Ziadé ziade.ta...@gmail.com added the comment: ok thanks for the tests Neal. Martin, do I have to do soemthing in msi.py to see this file included ? (I am looking at msi.py right now and it looks like it has the proper glob, but I want to be 100% sure) Ronald, what about the Mac OS scripts ? -- nosy: +loewis ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8102 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8102] test_distutils fails on 2.6.5rc1: No module named setuptools_build_ext
Martin v. Löwis mar...@v.loewis.de added the comment: Tarek, in general, if you want a new file in Lib included, create a bug report and assign it to me. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8102 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8133] test_imp fails on OS X 10.6; filename normalization issue.
New submission from Mark Dickinson dicki...@gmail.com:
test_issue5604 from test_imp is currently failing on OS X !0.6 (py3k branch),
with the following output:
==
ERROR: test_issue5604 (__main__.ImportTests)
--
Traceback (most recent call last):
File Lib/test/test_imp.py, line 121, in test_issue5604
file, filename, info = imp.find_module(temp_mod_name)
ImportError: No module named test_imp_helper_ä
--
I think this has something to do with the platform automatically
using NFD normalization for filenames. Here's an interactive session:
Python 3.2a0 (py3k:78936, Mar 13 2010, 19:42:52)
[GCC 4.2.1 (Apple Inc. build 5646) (dot 1)] on darwin
Type help, copyright, credits or license for more information.
import imp, unicodedata
fname = 'test' + b'\xc3\xa4'.decode('utf-8')
with open(fname+'.py', 'w') as file: file.write('a = 1\n')
...
6
imp.find_module(fname) # expected this to succeed
Traceback (most recent call last):
File stdin, line 1, in module
ImportError: No module named testä
imp.find_module(unicodedata.normalize('NFD', fname))
(_io.TextIOWrapper name=4 encoding='utf-8', 'testä.py', ('.py', 'U', 1))
In contrast, a simple 'open' doesn't seem to care about normalization:
open(fname+'.py')
_io.TextIOWrapper name='testä.py' encoding='UTF-8'
[50305 refs]
open(unicodedata.normalize('NFD', fname)+'.py')
_io.TextIOWrapper name='testä.py' encoding='UTF-8'
[50305 refs]
--
messages: 101018
nosy: ezio.melotti, mark.dickinson
severity: normal
status: open
title: test_imp fails on OS X 10.6; filename normalization issue.
type: behavior
versions: Python 3.2
___
Python tracker rep...@bugs.python.org
http://bugs.python.org/issue8133
___
___
Python-bugs-list mailing list
Unsubscribe:
http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8133] test_imp fails on OS X 10.6; filename normalization issue.
Mark Dickinson dicki...@gmail.com added the comment: Also affects 3.1. -- versions: +Python 3.1 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8133 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
