🌐 Mailman 3 April 2006 - Python-list - python.org

wxPython, wxcombobox opening
by Rony Steelandt May 2, 2006

May 2, 2006

Hi, Does somebody knows a way to automaticely open the list part of a wxCombobox when it gets the focus ? tia, Rony

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Non-web-based templating system
by qscomputing＠gmail.com May 2, 2006

May 2, 2006

Hi, I'm creating a small application in Python that uses lists and dictionaries to create a rudimentary database. I'd like to create some "fill-in-the-blanks" reports from this data, ideally by taking an RTF or plaintext file as a template and replacing placeholder tags with my data. Are there any good pre-written systems that would allow me to do this? Thanks, - QS Computing.

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resume picking items from a previous list
by kpp9c May 2, 2006

May 2, 2006

I have a several list of songs that i pick from, lets, say that there are 10 songs in each list and there are 2 lists. For a time i pick from my songs, but i only play a few of the songs in that list... now my wife, Jessica Alba, comes home, and i start playing from Jessica's list of songs. After playing a few songs, Jessica, who needs her beauty sleep, goes to bed, and i start my play loop which starts picking from my songs again... The wrinkle: only now i want it to pick first from among the 6 songs yet not played from the first time around, and *then* when the list is exhausted, shuffle the whole original list of songs and start again. Here is some working but hilariously bad code that does most of this funny biz... I've gotten this far, but can't figure out how to get the loops to keep track of what was played and what wasn't and how to pick-up the list where it left off. I know this is a dumb thing to want to do, but you know, being married to bona-fide star is not easy. # ----------------------------------------------------------- #!/usr/bin/env python import random import os def shuffleloop(iterable): """An iterator like itertools cycle, which returns elements from the iterable and saves a copy of each. When the iterable is exhausted, it return elements from the saved copy. The added wrinkle here is that the saved copy is randomly shuffled. Repeats indefinitely.""" saved = [] for element in iterable: yield element saved.append(element) while saved: random.shuffle(saved) for element in saved: yield element def playall_reload(startime, playdur, smpl_lst): '''a loop that shuffles and plays all sounds in a list. If the sequence is exhausted the list is reloaded, re-shuffled, and plyed through again. It does this as many times as needed to fill the time specified. Also returns the end of the last duration so that the begining of the next section can be fed to the next function or loop. ''' event = 0; incr = 0; lst_len = len(smpl_lst) random.shuffle(smpl_lst) smpl_loop = shuffleloop(smpl_lst) endpoint = startime + playdur while startime < endpoint: sample = smpl_loop.next() splt = os.path.split(sample) # get the duration of the current soundfile # (hard wire it for now) #incr = DUR() dur = 10 #load the sample & play it # # input(sample) # PLAY(startime, dur) # print "event %d @ %.4f --> [%s] dur: %.4f" % (event+1, startime, splt[1], dur) incr = dur startime = startime + incr event = event + 1 if (event < lst_len): print "\n\n*** Heads-up yo: <the input sequence was not exhausted> ***\n\n" return startime def test(): kevins = ['/Users/kevin/snd/songs/loveisintheair.aif', '/Users/kevin/snd/songs/boymeetsgirl.aif', '/Users/kevin/snd/songs/yourcheatingheart.aif', '/Users/kevin/snd/songs/kindletheflame.aif', '/Users/kevin/snd/songs/mywifeissohot.aif', '/Users/kevin/snd/songs/haha.aif', '/Users/kevin/snd/songs/blueberryorstrawberry.aif', '/Users/kevin/snd/songs/didyoupaytheelectricbill.aif', '/Users/kevin/snd/songs/whereistheremote.aif', '/Users/kevin/snd/songs/youspenthowmuchforthoseshoes.aif'] jessicas = ['/Users/kevin/snd/quiet_songs/iloveu.aif', '/Users/kevin/snd/quiet_songs/uloveme.aif', '/Users/kevin/snd/quiet_songs/wearehappy.aif', '/Users/kevin/snd/quiet_songs/wearesad.aif', '/Users/kevin/snd/quiet_songs/letsbreakup.aif', '/Users/kevin/snd/quiet_songs/letsgetbacktogether.aif', '/Users/kevin/snd/quiet_songs/walkinthesunshine.aif', '/Users/kevin/snd/quiet_songs/iloveutruly.aif', '/Users/kevin/snd/quiet_songs/whosefootisthat.aif', '/Users/kevin/snd/quiet_songs/ohbaby.aif'] print one = playall_reload(1.00, 20.00, kevins) print two = playall_reload(one, 180, jessicas) print three = playall_reload(two, 40.00, kevins) if __name__ == '__main__': test()

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Add file to zip, or replace file in zip
by abcd May 1, 2006

May 1, 2006

I have a script which zips up a directory, once it does with that (before it closes the zip file) I want to replace a file that was added to the zip, say "Foo.txt". So I tried this... [code] z = zipfile.ZipFile("blah.zip", "w") # zip the directory #... z.writestr("c:\\path\\to\\current\\foo_txt_file\\Foo.txt", "some new data") z.close() All this does is add a new Foo.txt file in the zip alongside the existing one....any suggestions? Thanks

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self modifying code
by Robin Becker May 1, 2006

May 1, 2006

When young I was warned repeatedly by more knowledgeable folk that self modifying code was dangerous. Is the following idiom dangerous or unpythonic? def func(a): global func, data data = somethingcomplexandcostly() def func(a): return simple(data,a) return func(a) It could be replaced by data = somethingcomplexandcostly() def func(a): return simple(data,a) but this always calculates data. -- Robin Becker

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Using a browser as a GUI: which Python package
by André May 1, 2006

May 1, 2006

First, an apology: I realise that I don't know enough about what I am asking to make sure to use the proper language to phrase my question. I would like to use a browser (e.g. Firefox) as a simple GUI "framework". Note that this is to be done on a single user machine, so the question of sandboxing is not really relevant here. The simplest application I would like to start with would be one with two "windows" (within a browser window) and a single button. One window would be used as a Python code editor; the other as an output window. On clicking on the button, the code in the editor window would be run by Python with the result appearing in the output window. [A more advanced, future version, would be to have Python create some graphical code (e.g. SVG) that could be passed to the browser to be displayed within the output window.] Ideally, I would prefer a Python-based solution only. My ultimate goal would be to port the main features of two wxPython-based apps I wrote (rur-ple and Lightning Compiler, both found at https://sourceforge.net/project/showfiles.php?group_id=125834) within a standard browser. Any help/pointers would be appreciated. André

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critique this little script, if you like
by John Salerno May 1, 2006

May 1, 2006

# Create new subdomain directory (with subdirectories) in my 1and1 folder import os import sys subdirs = [r'\cgi-bin', r'\images', r'\styles'] #if len(sys.argv) == 1: # subdomain = raw_input('Enter subdomain name: ') #else: # subdomain = sys.argv[1] try: subdomain = sys.argv[1] except IndexError: subdomain = raw_input('Enter subdomain name: ') path = r'C:\Documents and Settings\John Salerno\My Documents\My Webs\1and1\johnjsalerno.com\\' + subdomain os.mkdir(path) for subdir in subdirs: os.mkdir(path + subdir) Just a simple script I wrote as an experiment, and it works nicely anyway. My two questions are these: 1. Like my other post, I'm wondering if it's okay to handle the ending backlash as I did in path 2. Between the if block or the try block, which is more Pythonic? The try block seems nicer because it doesn't have such an ugly-looking check to make.

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ending a string with a backslash
by John Salerno May 1, 2006

May 1, 2006

I have this: subdomain = raw_input('Enter subdomain name: ') path = r'C:\Documents and Settings\John Salerno\My Documents\My Webs\1and1\johnjsalerno.com\' + subdomain Obviously the single backslash at the end of 'path' will cause a problem, and escaping it with a backslash seems to fix this problem, but how does escaping work when I already have it as a raw string? When I test it out and then print string, I get something like this: C:\Documents and Settings\John Salerno\My Documents\My Webs\1and1\johnjsalerno.com\\test But I don't see how this is valid, since all the backslashes are single (which is correct) except the last one. Somehow this still works when I tried to create the new directory -- os.mkdir(path) -- but I wasn't sure if this is the right way to go about it, or if there is some other, better way to handle the final backslash.

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python and xulrunner
by joe.hrbek＠gmail.com May 1, 2006

May 1, 2006

Hi everyone, sorry, this post is a bit off topic. I posted this on a devel xul thread on the mozilla groups but didn't get a response. My hope is that some of you may have interest in this and have tried it yourself. I've been trying to get xulrunner compiled with python (in windows) but have been unsuccessful. I've been following this: <http://michaelthornhill.blogspot.com/2005/07/giving-python-legs-with-...>. I know it's a linux based tutorial, but the steps are generally the same aside from required os linkers/compilers - which i've obtained reading the standard mozilla compile instructions for windows. Has anyone else tried this and had luck with it? -j

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Measure memory usage in Python
by Rune Strand May 1, 2006

May 1, 2006

Is there a way to measure how much memory a data structure use? For instance, what is the footprint of a particular list object like [0,1,2,3,4,5,6,7,8,9]?

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