Re: building a GUI

stef mientki schrieb: > Phil Thompson wrote: >> On Sunday 23 September 2007, stef mientki wrote: >> >>> Diez B. Roggisch wrote: >>> stef mientki schrieb: > Thomas Dybdahl Ahle wrote: > >> Den Sun, 23 Sep 2007 17:28:38 +0200 skrev stef mientki: >>

scope, modyfing outside object from inside the method

Hello. I thought I understand this, but apparently I don't :(. I'm missing something very basic and fundamental here, so redirecting me to the related documentation is welcomed as well as providing working code :). Trivial example which works as expected: >>> x = {'a':123, 'b': 456} >>> y = x >

RE: I could use some help making this Python code run faster usingonly Python code.

Python Maniac wrote: > Some benchmarks showing the effectiveness of using Psyco: > > scramble: 4.210 > scramble_listcomp: 2.343 > scramble_gencomp: 2.599 > scramble_map: 1.960 > scramble_imap: 2.231 > scramble_dict: 2.387 > scramble_dict_map: 0.535 > scramble_dict_imap:

Re: building a GUI

In message <[EMAIL PROTECTED]>, stef mientki wrote: > ... I never looked at PyQt seriously, because of their weird license. What's weird about it? Lots of software products are dual-licensed, e.g. MySQL, Perl. -- http://mail.python.org/mailman/listinfo/python-list

Re: Newbie completely confused

In message <[EMAIL PROTECTED]>, Gabriel Genellina wrote: > En Fri, 21 Sep 2007 13:34:40 -0300, Jeroen Hegeman > <[EMAIL PROTECTED]> escribi�: > >> class ModerateClass: >> def __init__(self): >> return >> def __del__(self): >> pass >> return >> >> class HugeCla

Database Abstraction Layer And/Or ORM

Hello all, I am looking for opinions on preferred methods of Database Abstraction Layer or Object Relation Mapper (I'm using Python 2.5). I have found a number of options such as those listed here: http://wiki.python.org/moin/HigherLevelDatabaseProgramming I'm not looking for a holy war b

Re: database persistence with mysql, sqlite

In message <[EMAIL PROTECTED]>, coldpizza wrote: > So far, with mysql I use 'SELECT * FROM TABLE LIMIT L1, L2' where L1 > and L2 define the range for the 'Next' and 'Previous' commands. I > have to run the query every time a click a 'Next/Prev' link. But I am > not sure that this is the best and

Re: Would Anonymous Functions Help in Learning Programming/Python?

On Sep 21, 5:21 pm, Bruno Desthuilliers <[EMAIL PROTECTED]> wrote: > Ok, then what about classes ? They also are objects-like-any-other, > after all. So should we have this syntax too ? > > MyClass = class(ParentClass): >__init__ = function (self, name): > self.name = name > > ?-) For co

Re: subprocess -popen - reading stdout from child - hangs

In message <[EMAIL PROTECTED]>, [EMAIL PROTECTED] wrote: > Well, using this subclass of subprocess.Popen fixes the problem > (http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/440554) > > I don't understand how it works though. Would anyone mind > explaining? I'm thinking there's somethin

Re: [Bulk] Re: Writing Object Data to Disk

In message <[EMAIL PROTECTED]>, Amit Kumar Saha wrote: > I appreciate the XML related comment, but as of now I am ready-to-roll > with Python specific pickling. XML will be used in a later version of my > code! Will you need to maintain backward compatibility with data written by the current vers

Re: subprocess -popen - reading stdout from child - hangs

In message <[EMAIL PROTECTED]>, [EMAIL PROTECTED] wrote: > Let's say I have this Python file called loop.py: > > import sys > print 'hi' > sys.stdout.flush() > while 1: > pass > > And I want to call it from another Python process and read the value > 'hi'. How would I do it? > > So far I h

Re: An Editor that Skips to the End of a Def

In message <[EMAIL PROTECTED]>, Manuel Graune wrote: > Matthew Woodcraft <[EMAIL PROTECTED]> writes: > >> Lawrence D'Oliveiro <[EMAIL PROTECTED]> wrote:> >> >>> >> > And "cursor keys"? Please, every self respecting editor has ways f

Re: Preemption in python

Thanks a ton! Just for the eventual webcrawler that logs this, the gtk package requires a separate thread init function to allow python threads to play nice. On 9/23/07, Gabriel Genellina <[EMAIL PROTECTED]> wrote: > > En Sun, 23 Sep 2007 16:10:03 -0300, Kurtis Heimerl <[EMAIL PROTECTED]> > escri

Re: Getting rid of bitwise operators in Python 3?

[EMAIL PROTECTED] wrote: > On Sep 22, 7:04 pm, Marc 'BlackJack' Rintsch <[EMAIL PROTECTED]> wrote: >> On Sat, 22 Sep 2007 21:17:38 +, Bryan Olson wrote: >>> The operator module offers pow(). Is there any good reason for >>> pow() as a built-in? >> The `operator.pow()` is just the function for

Re: Would Anonymous Functions Help in Learning Programming/Python?

On 22 Sep., 02:14, Bruno Desthuilliers <[EMAIL PROTECTED]> wrote: > Kay Schluehr a écrit : > (snip) > > > > > I checked out Io once and I disliked it. I expected Io's prototype OO > > being just a more flexible variant of class based OO but Io couples a > > prototype very closely to its offspring.

Re: TRying to import files from my folder not pythons lib folder

Steve Holden wrote: > [EMAIL PROTECTED] wrote: > > On Sep 21, 12:32 pm, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> > > wrote: > >> Hi, > >> > >> I'm trying to create my own lib of functions, but it seems like I can > >> only import them if they are in pythons lib folder. > >> > >> Example > >> I have

Re: building a GUI

On 2007-09-23, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > On Sep 23, 4:28 pm, stef mientki <[EMAIL PROTECTED]> wrote: >> yadin wrote: >> > if i were up to make a GUI chich are the advantages of choosing python >> > over matlab or java? >> >> As MatLab has a very lousy GUI, >> any other language

Re: Would Anonymous Functions Help in Learning Programming/Python?

Scott David Daniels wrote: > Ron Adam wrote: >> Scott David Daniels wrote: >>> Ron Adam wrote: How about this? def integrate(fn, x1, x2, n=100):... >>> The point was a pedagogic suggestion, ... >> I understood your point. I just found it interesting since I've been >> trying to

Re: __contains__() and overload of in : Bug or Feature ???

[EMAIL PROTECTED] wrote: > Thanks for your quick response. > >>> I need to overload the operator in and let him >>> return an object ... It seems it is not a >>> behavior Python expect : >>> >> class A: >>> ...def __contains__(self,a): >>> ...return 'yop' >>> ... >> a=A() >

Re: Writing Object Data to Disk

Amit Kumar Saha wrote: > Actually, language independence is really not a consideration here. I am > happy at having it tied to Python :-) > > BTW, do we have something like array of objects here? In numpy, one can have a multi-dimensional array of objects. It would be good to have this notion

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Re: building a GUI

On Mon Sep 24 00:08:09 CEST 2007, stef mientki wrote: > Phil Thompson wrote: > > On Sunday 23 September 2007, stef mientki wrote: > > >> Could well be, > >> but I never looked at PyQt seriously, > >> because of their weird license. > > > > It's not weird. It's either GPL or proprietary. Your choic

Re: Would Anonymous Functions Help in Learning Programming/Python?

Cristian a écrit : > On Sep 21, 4:47 pm, "Sean Tierney" <[EMAIL PROTECTED]> wrote: > >>Just tell him that "functions are like all other variables and can >>therefore be passed by other functions or returned by other functions. >>" >> > > > > > I could """Just tell him that "functions are like

Re: Would Anonymous Functions Help in Learning Programming/Python?

Kay Schluehr a écrit : > On 22 Sep., 23:17, Erik Max Francis <[EMAIL PROTECTED]> wrote: > > >>The attribute and method (not made distinct in Io; they're called >>"slots") is much the same as with Python; the current instance is >>checked for the object, then its parents, then _its_ parents, and s

Re: Would Anonymous Functions Help in Learning Programming/Python?

Kay Schluehr a écrit : (snip) > > I checked out Io once and I disliked it. I expected Io's prototype OO > being just a more flexible variant of class based OO but Io couples a > prototype very closely to its offspring. When A produces B and A.f is > modified after production of B also B.f is modif

Re: Would Anonymous Functions Help in Learning Programming/Python?

Cristian a écrit : (snip) > To me, the biggest setback for new programmers is the different syntax > Python has for creating functions. Instead of the common (and easy to > grasp) syntax of foo = bar It's actually a mostly *un*common syntax when it comes to functions. The only "mainstream" langua

SimPy, audio interview with creators of

SimpPy is a powerful simulation package for Python. I have just posted an interview (podcast) with Dr. Klaus Muller in Amsterdam and Professor Tony Vignaux in New Zealand about their creation, SimPY, an object-oriented, process-based discrete-event simulation language based on standard Python. Ch

Re: strange behavious of the logging module?

En Sun, 23 Sep 2007 18:53:53 -0300, Christian Meesters <[EMAIL PROTECTED]> escribi�: > import logging > logging.basicConfig(level=logging.ERROR, > format='%(levelname)-8s %(message)s', > filename='mc_rigid.log', > filemode='w') > # defi

Re: Properties and Objects...

En Sat, 22 Sep 2007 15:06:38 -0300, George V. Neville-Neil <[EMAIL PROTECTED]> escribi�: > I have been trying to switch this over to using properties, which seem > at first glance to be cleaner, but which I am having a lot of problems > with. In particular I want to add a property to an object,

Re: building a GUI

Phil Thompson wrote: > On Sunday 23 September 2007, stef mientki wrote: > >> Diez B. Roggisch wrote: >> >>> stef mientki schrieb: >>> Thomas Dybdahl Ahle wrote: > Den Sun, 23 Sep 2007 17:28:38 +0200 skrev stef mientki: > >> yadin wrote: >

strange behavious of the logging module?

Hi, having the following code: import logging logging.basicConfig(level=logging.ERROR, format='%(levelname)-8s %(message)s', filename='mc_rigid.log', filemode='w') # define a Handler which writes INFO messages or higher to the sys.stderr

Re: building a GUI

On Sunday 23 September 2007, stef mientki wrote: > Diez B. Roggisch wrote: > > stef mientki schrieb: > >> Thomas Dybdahl Ahle wrote: > >>> Den Sun, 23 Sep 2007 17:28:38 +0200 skrev stef mientki: > yadin wrote: > > if i were up to make a GUI chich are the advantages of choosing > > pyth

Re: Would Anonymous Functions Help in Learning Programming/Python?

Ron Adam wrote: > Scott David Daniels wrote: >> Ron Adam wrote: >>> How about this? >>> def integrate(fn, x1, x2, n=100):... >> The point was a pedagogic suggestion, ... > I understood your point. I just found it interesting since I've been > trying to extend my math (for use with python) s

Re: Preemption in python

En Sun, 23 Sep 2007 16:10:03 -0300, Kurtis Heimerl <[EMAIL PROTECTED]> escribi�: > I'll explain a bit more. This thread is spawned, I also have the main > thread > running a gtk windowed gui. The gui has it's own threads to deal with > button > presses and such. The problem is that the gui n

Re: Small changes in side library

En Sat, 22 Sep 2007 22:07:27 -0300, [EMAIL PROTECTED] <[EMAIL PROTECTED]> escribi�: > I have the side library which provides wide set of different > functions, but I'm going to replace some of them with mine and > provided such 'modified' library thought my project. > > The following way works w

Re: os.popen and lengthy operations

On 20 sep 2007, at 08.31, Dmitry Teslenko wrote: > Hello! > I'm using os.popen to perform lengthy operation such as building some > project from source. > It looks like this: > def execute_and_save_output( command, out_file, err_file): > > import os > > def execute_and_save_output( command, out_f

Re: building a GUI

On 9/23/07, Diez B. Roggisch <[EMAIL PROTECTED]> wrote: > > stef mientki schrieb: > > Thomas Dybdahl Ahle wrote: > >> Den Sun, 23 Sep 2007 17:28:38 +0200 skrev stef mientki: > >> > >>> yadin wrote: > >>> > >>> > if i were up to make a GUI chich are the advantages of choosing > python > ov

Re: building a GUI

Diez B. Roggisch wrote: > stef mientki schrieb: > >> Thomas Dybdahl Ahle wrote: >> >>> Den Sun, 23 Sep 2007 17:28:38 +0200 skrev stef mientki: >>> >>> yadin wrote: > if i were up to make a GUI chich are the advantages of choosing python > ov

Re: building a GUI

On 9/23/07, Diez B. Roggisch <[EMAIL PROTECTED]> wrote: > > stef mientki schrieb: > > Thomas Dybdahl Ahle wrote: > >> Den Sun, 23 Sep 2007 17:28:38 +0200 skrev stef mientki: > >> > >>> yadin wrote: > >>> > >>> > if i were up to make a GUI chich are the advantages of choosing > python > ov

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Travel around the globe...

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Re: Untrusted python code

Thomas Dybdahl Ahle <[EMAIL PROTECTED]> writes: > Hi, I have an application for which I want users to be able to make > themes. > I've planed a rather advanced model (in xml), which gives themes the > option to redefine various drawing methods. > Now I don't want those themes to be able to take o

Re: database persistence with mysql, sqlite

coldpizza wrote: > I want to run a database query and then display the first 10 records > on a web page. Then I want to be able to click the 'Next' link on the > page to show the next 10 records, and so on. > My question is how to implement paging, i.e. the 'Next/Prev' NN > records without reestab

Re: Preemption in python

I ran a brief program to just test the threading properties of my VM, it seems to be preempting that application. Are there any interesting locks in the gtk package that I might not be playing well with? The reader thread that only runs on a blocking call is at the end of my response. I'll expla

Re: Preemption in python

On Sat, 2007-09-22 at 19:28 -0700, Kurtis Heimerl wrote: > Hi, I'm developing my first python application, a multi-threaded cell > phone gadget on ubuntu 7.10. I've just split off my first thread, and > I've noticed something extremely strange: There doesn't seem to be any > preemption. There are c

Re: building a GUI

stef mientki schrieb: > Thomas Dybdahl Ahle wrote: >> Den Sun, 23 Sep 2007 17:28:38 +0200 skrev stef mientki: >> >>> yadin wrote: >>> >>> if i were up to make a GUI chich are the advantages of choosing python over matlab or java? >>> The best is Delphi, >>> second i

Re: building a GUI

Thomas Dybdahl Ahle wrote: > Den Sun, 23 Sep 2007 17:28:38 +0200 skrev stef mientki: > >> yadin wrote: >> >> >>> if i were up to make a GUI chich are the advantages of choosing python >>> over matlab or java? >>> >>> >> The best is Delphi, >> second is VB, >> > > That sounds mos

Untrusted python code

Hi, I have an application for which I want users to be able to make themes. I've planed a rather advanced model (in xml), which gives themes the option to redefine various drawing methods. Now I don't want those themes to be able to take over the current user, but I'd still like the scripts to b

Re: building a GUI

Den Sun, 23 Sep 2007 17:28:38 +0200 skrev stef mientki: > yadin wrote: > >> if i were up to make a GUI chich are the advantages of choosing python >> over matlab or java? >> > The best is Delphi, > second is VB, That sounds mostly like a personal preference :) I would certainly suggest Python ver

Re: I could use some help making this Python code run faster using only Python code.

> Yes, Digital Mars D is what I was referring to and yes I know D is not > as efficient as C++. If I knew of a good C++ compiler that is not > from Microsoft that works natively with Windows I would be happy to > consider using it. I've had good luck with MinGW (gcc compiled for windows). http:/

Re: [Bulk] Re: Writing Object Data to Disk

On Sun, 2007-09-23 at 18:34 +0200, David wrote: > > I would like to know if "Pickling" the class object is the only way of > > writing it to disk for persistent storage. Also, do we have a concept > > similar to "array of objects" in Python? The number of objects is only > > known at "run-time". >

Re: An Editor that Skips to the End of a Def

Matthew Woodcraft <[EMAIL PROTECTED]> writes: > Lawrence D'Oliveiro <[EMAIL PROTECTED]> wrote:> > >> > > An interesting story. They say they picked a test for the express > purpose of proving that in some circumstances cursor keys ca

Re: Factory function with keyword arguments

Steven D'Aprano wrote: > On Sun, 23 Sep 2007 03:55:45 -0500, Ron Adam wrote: > >> Steven D'Aprano wrote: >>> I'm writing a factory function that needs to use keywords in the >>> produced function, not the factory. Here's a toy example: > > [snip] > > Thanks everyone who answered, you've given

Re: Writing Object Data to Disk

> I would like to know if "Pickling" the class object is the only way of > writing it to disk for persistent storage. Also, do we have a concept > similar to "array of objects" in Python? The number of objects is only > known at "run-time". Have a look at YAML. http://freshmeat.net/projects/syck/

Re: building a GUI

On Sep 23, 4:28 pm, stef mientki <[EMAIL PROTECTED]> wrote: > yadin wrote: > > if i were up to make a GUI chich are the advantages of choosing python > > over matlab or java? > > As MatLab has a very lousy GUI, > any other language would be an advantage ;-) > > The best is Delphi, > second is VB, >

Re: annoying stdin/stdout + pipes problem

> I want to create a program that reads input from stdio that can prompt > a user for input while doing so without getting into problems. ... > As you can see I have commented out what I'd like to do but do not > know how to. Can I somehow halt the previous print to stdout (cat > input.txt) - if so

Re: building a GUI

yadin wrote: > if i were up to make a GUI chich are the advantages of choosing python > over matlab or java? > > As MatLab has a very lousy GUI, any other language would be an advantage ;-) The best is Delphi, second is VB, then comes SciLab, Python, etc I don't know where Java fits in. But as

Re: can I run pythons IDLE from a command line??

On Sat, 22 Sep 2007 17:53:09 +0200, Thomas Jollans wrote: > On Saturday 22 September 2007, [EMAIL PROTECTED] wrote: >> Hi, >> Is their a version of pythons IDLE that will run in a dos command line? >> The reason is that I would like to be able to run python code >> interactively from my parable by

Re: building a GUI

yadin wrote: > if i were up to make a GUI chich are the advantages of choosing python > over matlab or java? > This question is WAY to broad to give sane advice. You might want to state your context, objectives and restrictions are. Since you brought up Matlab, I suspect you're going after a sci

Re: Getting rid of bitwise operators in Python 3?

: arguments and dicts, which are lot more versatile. Another major use, : talking to hardware, is not something oft done in Python either. Are you sure? I've been doing lots of exactly that for 4 years, and I'm not the only one round here... Python makes an excellent language for talking to

building a GUI

if i were up to make a GUI chich are the advantages of choosing python over matlab or java? -- http://mail.python.org/mailman/listinfo/python-list

Re: newb: Question regarding custom exception

crybaby <[EMAIL PROTECTED]> wrote: > Why you specify type and name of the exception in your custom > exceptions, It's up to you, if you're interested in the actual exception object you catch it, otherwise not. Take a look at this: -- Law

Re: newb: Question regarding custom exception

On Sun, 23 Sep 2007 05:32:28 -0700, crybaby wrote: > Why you specify type and name of the exception in your custom > exceptions, > but not in built in exceptions > except IOError: > print "no file by the name ccy_rates*.txt" > > except MyError, e: > print e.msg Yo

annoying stdin/stdout + pipes problem

Hi, I want to create a program that reads input from stdio that can prompt a user for input while doing so without getting into problems. A simplified version of what I want: I have an input file ***>cat input.txt foo bar baz fubar barooba xyxxyt raboof txet black knight And a file that replaces

newb: Question regarding custom exception

Why you specify type and name of the exception in your custom exceptions, but not in built in exceptions except IOError: print "no file by the name ccy_rates*.txt" except MyError, e: print e.msg Also, when you do: try: raise MyError(23) In "try: MyError(23) ", y

Re: An Editor that Skips to the End of a Def

Paul Rubin writes: > [EMAIL PROTECTED] (John J. Lee) writes: >> > I think mousing takes more mental work than typing, >> I'm not sure this is a matter for debate, as much as physical >> measurement. > > I don't know of any way to physically measure mental work. fMRI is

Re: Factory function with keyword arguments

Steven D'Aprano <[EMAIL PROTECTED]> writes: > A valuable lesson... always measure before guessing whether code > will be slow or not. And after measuring, don't guess then either :-) -- \"Science doesn’t work by vote and it doesn’t work by | `\ authority." —Richard D

Re: Factory function with keyword arguments

On Sun, 23 Sep 2007 03:55:45 -0500, Ron Adam wrote: > Steven D'Aprano wrote: >> I'm writing a factory function that needs to use keywords in the >> produced function, not the factory. Here's a toy example: [snip] Thanks everyone who answered, you've given me a lot of good ideas. I've run some t

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directpython question

Hello, I've got IBM Thinkpad 30 laptop with configuration: IBM Thinkpad R30 P3 Mobile Celeron 900mhz 128mb sdram pc133 15gb hdd cd-rom Teac cd-224e 56K V.90/92 10/100 Ethernet lpt port ps2 port 2 x usb port vga-out pcmcia ,then I have been install directx 9.0c,Python 2.5 and directpython for pyth

Re: Factory function with keyword arguments

On 9/23/07, Ron Adam <[EMAIL PROTECTED]> wrote: > > > Steven D'Aprano wrote: > > I'm writing a factory function that needs to use keywords in the produced > > function, not the factory. Here's a toy example: > http://docs.python.org/whatsnew/pep-309.html -- http://mail.python.org/mailman/listinfo

Re: Factory function with keyword arguments

Steven D'Aprano wrote: > I'm writing a factory function that needs to use keywords in the produced > function, not the factory. Here's a toy example: > I thought of doing this: > > def factory(flag): > if flag: kw = 'spam' > else: kw = 'ham' > def foo(obj, arg): > kwargs =

Re: Would Anonymous Functions Help in Learning Programming/Python?

Scott David Daniels wrote: > Ron Adam wrote: >> >> Scott David Daniels wrote: >>> Cristian wrote: On Sep 21, 3:44 pm, Ron Adam <[EMAIL PROTECTED]> wrote: > I think key may be to discuss names and name binding with your friend. >>> Here's an idea: >>> >>> import math >>> >>> def sin_

Re: newb: glob on windows os.renames creates many nested folders

crybaby wrote: > when I do this in my python code and run it in windows xp, it creates > ctemp//.../.../../ so on and creates file t. Not file starting > with the name complist and ending with .txt (complist*.txt). Any idea > why this may be? glob only works in *nix not on windows? > > os.r

Re: subprocess -popen - reading stdout from child - hangs

On Sep 22, 8:28 pm, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote: > Let's say I have this Python file called loop.py: > > import sys > print 'hi' > sys.stdout.flush() Add sys.stdout.close() > while 1: > pass > > And I want to call it from another Python process and read the value > 'hi'. Ho