Re: Split string but ignore quotes
On Sep 29, 5:11 pm, Scooter slbent...@gmail.com wrote: I'm attempting to reformat an apache log file that was written with a custom output format. I'm attempting to get it to w3c format using a python script. The problem I'm having is the field-to-field matching. In my python code I'm using split with spaces as my delimiter. But it fails when it reaches the user agent because that field itself contains spaces. But that user agent is enclosed with double quotes. So is there a way to split on a certain delimiter but not to split within quoted words. i.e. a line might look like 2009-09-29 12:00:00 - GET / Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; GTB5; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 3.0.04506; .NET CLR 3.5.21022)http://somehost.com200 1923 1360 31715 - Best option for you is to use shlex module as Björn said. This is quite a simple question and you would find it on your own for sure if you search python docs a little bit :) -- http://mail.python.org/mailman/listinfo/python-list
Re: Simple if-else question
On Tue, 29 Sep 2009 22:29:10 -0700, John Yeung wrote: On Sep 29, 1:15 pm, Carl Banks pavlovevide...@gmail.com wrote: Hmm, I wonder if Python should emit a warning if an else is used on a for block with no break inside. I don't think the else can be invoked in any other way. As a bonus it could catch some cases where people mistakenly use it thinking it will execute [only] when there are no iterations. [Edit from Duncan Booth] I would definitely be in favor of a warning. Yes, people should read the docs more carefully, and yes, it would cost a certain amount of annoyance to implement this. But I don't think it would get in people's way if they do know how to use else, Of course it would. It would mean that everybody who knows how to use for...else correctly would have to deal with a totally useless warning. and I think it would cut down on the number of questions from mystified beginners, some of whom are much more aggressive than this particular OP about claiming that Python is broken (when it's actually behaving as designed). By raising a warning, you are implying that the behaviour is broken, or at least suspicious. Warnings mean something needs to be warned against -- don't do this. Warnings shouldn't be perfectly legitimate behaviours on the off-chance that the user is confused. Warning, are you sure you want to put the car into reverse? Perhaps you meant neutral? What would the warning say? Warning, you have used a legitimate Python control structure but you might be confused by it. Warning, did you mean if...else instead of for...else? Then we can add a whole lot of extra warnings to protect newbies who don't read docs (and probably won't read the warnings either) from themselves: Warning, did you mean obj(1) instead of obj[1]? Warning, did you mean def f(object) instead of class f(object)? Warning, did you mean class f(object) instead of def f(object)? Warning, did you mean 2*3 instead of 2**3? Warning, did you mean %s instead of %x? Warning, we think you're helpless and don't know what you want, perhaps you should be programming in PHP? I'm sympathetic to the desire to educate the n00bs, and in fact I've even suggested similar warnings myself. But I've been convinced that this is the wrong approach. Certainly the language shouldn't assume the programmer is confused. If this sort of warning belongs anywhere (and that's a big if), it belongs in an IDE. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: How to pass a global variable to a module?
On Tuesday, 29 September 2009 20:24:53 Mars creature wrote: From the link Gregor posted, it seems no way to share variable between modules. I can understand the point that global variables tends to mess up programs. Assume that I have 10 parameters need to pass to the function. If these parameters are fixed, I can use another module to store these 10 parameters, and import to the module, as suggested by jean-michel. But what if these 10 parameters will be changed in the main program? Passing the variable to the function as a parameter suggested by Rami will certainly do, but I am wondering weather there are other ways. What you'd like to code it? You can put all the 10 things in a file called say my_params.py. Then where you need it, you do either: from my_params import * to make them available where needed, or: import my_params as p and access them as: print p.my_parm_1,p.my_parm_2,p.my_parm_3,p.my_parm_4 - Hendrik -- http://mail.python.org/mailman/listinfo/python-list
Re: Partial directory search question
chad cdal...@gmail.com wrote in message news:4e260ef3-8b0e-4613-a4f8-1c267e875...@u16g2000pru.googlegroups.com... On Sep 29, 7:20 pm, Tim Chase python.l...@tim.thechases.com wrote: What's the sanest way to print out all the files in the directory that start with the underscore? Ie, I just want to list _1, _2, _3, _4. I'd use a string's join() method to combine the results of a list-comprehension or generator that filtered the output of os.listdir() based on the startswith() method of the strings. Left intentionally oblique and code-free because this sounds a bit like a home-work problem. If you're a python coder, that should make pretty decent sense and be a one-liner to implement. -tkc Okay, sorry for the delay to the response. I got side tracked trying to stalk, I mean talk to the 59 year old neighbor girl. Anyways, I couldn't get it to one in one line. Here is what I did... % more rec.py #!/usr/local/bin/python import os import time for filename in os.listdir(/usr/bbs/confs/september): #stat = os.stat(filename) if filename.startswith(_): print filename L = [filename for filename in os.listdir(/usr/bbs/confs/september) if filename.startswith(_)] Now you have a list with the desired filtered names. ./rec.py _1 _2 _3 _4 _5 _6 _7 _8 It correctly prints out all the files in the directory that start with an underscore. -- http://mail.python.org/mailman/listinfo/python-list
Re: UnboundLocalError with extra code after return
Rich Healey healey.r...@gmail.com wrote: It seems that my problem was that I can't assign a new function to the name func within the callonce() function. I can however interact with the func object (in this case storing information about whether or not I'd called it in it's __RECALL item. Is there a cleaner solution? You want to call something, and have that something remember state between each call? If it was me I'd define a class rather than a function. class CallableOnlyOnce(object): def __init__(self, func): self.func = func def __call__(self): f = self.func if f: self.func = None return f() def callonce(func): return CallableOnlyOnce(func) @callonce def t2(): print T2 called t2() T2 called t2() -- http://mail.python.org/mailman/listinfo/python-list
Re: Most active coroutine library project?
On Wednesday, 30 September 2009 04:16:45 Grant Edwards wrote: Assembler macros are indeed a lost art. Back in the day, I remember seeing some pretty impressive macro libraries layered 2-3 deep. I've done assember macros as recently as about 2-3 years go because it was the easiest way to auto-magically generate lookup tables for use by C programs (macro assemblers always have a repeat directive, and cpp doesn't). The 803x bit handling is, in my arrogant opinion, still the best of any processor. - jump if bit set then clear as an atomic instruction rocks. The bit-addressing mode was (and still is) cool. However, the stack implementation hurts pretty badly now that memory is cheap. I shouldn't criticize the 8051. I remember switching from the 8048 to the 8051 (8751 actually, at about $300 each) and thinking it was wonderful. [Anybody who remembers fighting with the 8048 page boundaries knows what I mean.] You were lucky - I started with an 8039 and the 8048 was a step up! You are right about the stack - there are a lot of implementations now with two or more data pointers, which make a big difference. If only someone would build one with a two byte stack pointer that points into movx space, the thing would fly faster again. It would make a stunning difference to the multitasking performance if you do not have to store the whole stack. Of course, if you are mucking around in assembler, then the 128 bytes at the top of the internal memory is often enough. This is getting a bit far away from python and coroutines, though. :-) - Hendrik -- http://mail.python.org/mailman/listinfo/python-list
unicode issue
Why don't work this code on Python 2.6? Or how can I do this job?
_MAP = {
# LATIN
u'À': 'A', u'Á': 'A', u'Â': 'A', u'Ã': 'A', u'Ä': 'A', u'Å': 'A',
u'Æ': 'AE', u'Ç':'C',
u'È': 'E', u'É': 'E', u'Ê': 'E', u'Ë': 'E', u'Ì': 'I', u'Í': 'I',
u'Î': 'I',
u'Ï': 'I', u'Ð': 'D', u'Ñ': 'N', u'Ò': 'O', u'Ó': 'O', u'Ô': 'O',
u'Õ': 'O', u'Ö':'O',
u'Ő': 'O', u'Ø': 'O', u'Ù': 'U', u'Ú': 'U', u'Û': 'U', u'Ü': 'U',
u'Ű': 'U',
u'Ý': 'Y', u'Þ': 'TH', u'ß': 'ss', u'à':'a', u'á':'a', u'â': 'a',
u'ã': 'a', u'ä':'a',
u'å': 'a', u'æ': 'ae', u'ç': 'c', u'è': 'e', u'é': 'e', u'ê': 'e',
u'ë': 'e',
u'ì': 'i', u'í': 'i', u'î': 'i', u'ï': 'i', u'ð': 'd', u'ñ': 'n',
u'ò': 'o', u'ó':'o',
u'ô': 'o', u'õ': 'o', u'ö': 'o', u'ő': 'o', u'ø': 'o', u'ù': 'u',
u'ú': 'u',
u'û': 'u', u'ü': 'u', u'ű': 'u', u'ý': 'y', u'þ': 'th', u'ÿ': 'y',
# LATIN_SYMBOLS
u'©':'(c)',
# GREEK
u'α':'a', u'β':'b', u'γ':'g', u'δ':'d', u'ε':'e', u'ζ':'z',
u'η':'h', u'θ':'8',
u'ι':'i', u'κ':'k', u'λ':'l', u'μ':'m', u'ν':'n', u'ξ':'3',
u'ο':'o', u'π':'p',
u'ρ':'r', u'σ':'s', u'τ':'t', u'υ':'y', u'φ':'f', u'χ':'x',
u'ψ':'ps', u'ω':'w',
u'ά':'a', u'έ':'e', u'ί':'i', u'ό':'o', u'ύ':'y', u'ή':'h',
u'ώ':'w', u'ς':'s',
u'ϊ':'i', u'ΰ':'y', u'ϋ':'y', u'ΐ':'i',
u'Α':'A', u'Β':'B', u'Γ':'G', u'Δ':'D', u'Ε':'E', u'Ζ':'Z',
u'Η':'H', u'Θ':'8',
u'Ι':'I', u'Κ':'K', u'Λ':'L', u'Μ':'M', u'Ν':'N', u'Ξ':'3',
u'Ο':'O', u'Π':'P',
u'Ρ':'R', u'Σ':'S', u'Τ':'T', u'Υ':'Y', u'Φ':'F', u'Χ':'X',
u'Ψ':'PS', u'Ω':'W',
u'Ά':'A', u'Έ':'E', u'Ί':'I', u'Ό':'O', u'Ύ':'Y', u'Ή':'H',
u'Ώ':'W', u'Ϊ':'I', u'Ϋ':'Y',
# TURKISH
u'ş':'s', u'Ş':'S', u'ı':'i', u'İ':'I', u'ç':'c', u'Ç':'C',
u'ü':'u', u'Ü':'U',
u'ö':'o', u'Ö':'O', u'ğ':'g', u'Ğ':'G',
# RUSSIAN
u'а':'a', u'б':'b', u'в':'v', u'г':'g', u'д':'d', u'е':'e',
u'ё':'yo', u'ж':'zh',
u'з':'z', u'и':'i', u'й':'j', u'к':'k', u'л':'l', u'м':'m',
u'н':'n', u'о':'o',
u'п':'p', u'р':'r', u'с':'s', u'т':'t', u'у':'u', u'ф':'f',
u'х':'h', u'ц':'c',
u'ч':'ch', u'ш':'sh', u'щ':'sh', u'ъ':'', u'ы':'y', u'ь':'',
u'э':'e', u'ю':'yu', u'я':'ya',
u'А':'A', u'Б':'B', u'В':'V', u'Г':'G', u'Д':'D', u'Е':'E',
u'Ё':'Yo', u'Ж':'Zh',
u'З':'Z', u'И':'I', u'Й':'J', u'К':'K', u'Л':'L', u'М':'M',
u'Н':'N', u'О':'O',
u'П':'P', u'Р':'R', u'С':'S', u'Т':'T', u'У':'U', u'Ф':'F',
u'Х':'H', u'Ц':'C',
u'Ч':'Ch', u'Ш':'Sh', u'Щ':'Sh', u'Ъ':'', u'Ы':'Y', u'Ь':'',
u'Э':'E', u'Ю':'Yu', u'Я':'Ya',
# UKRAINIAN
u'Є':'Ye', u'І':'I', u'Ї':'Yi', u'Ґ':'G', u'є':'ye', u'і':'i',
u'ї':'yi', u'ґ':'g',
# CZECH
u'č':'c', u'ď':'d', u'ě':'e', u'ň':'n', u'ř':'r', u'š':'s',
u'ť':'t', u'ů':'u',
u'ž':'z', u'Č':'C', u'Ď':'D', u'Ě':'E', u'Ň':'N', u'Ř':'R',
u'Š':'S', u'Ť':'T', u'Ů':'U', u'Ž':'Z',
# POLISH
u'ą':'a', u'ć':'c', u'ę':'e', u'ł':'l', u'ń':'n', u'ó':'o',
u'ś':'s', u'ź':'z',
u'ż':'z', u'Ą':'A', u'Ć':'C', u'Ę':'e', u'Ł':'L', u'Ń':'N',
u'Ó':'o', u'Ś':'S',
u'Ź':'Z', u'Ż':'Z',
# LATVIAN
u'ā':'a', u'č':'c', u'ē':'e', u'ģ':'g', u'ī':'i', u'ķ':'k',
u'ļ':'l', u'ņ':'n',
u'š':'s', u'ū':'u', u'ž':'z', u'Ā':'A', u'Č':'C', u'Ē':'E',
u'Ģ':'G', u'Ī':'i',
u'Ķ':'k', u'Ļ':'L', u'Ņ':'N', u'Š':'S', u'Ū':'u', u'Ž':'Z'
}
def downcode(name):
downcode(uŽabovitá zmiešaná kaša)
u'Zabovita zmiesana kasa'
for key, value in _MAP.iteritems():
name = name.replace(key, value)
return name
--
http://mail.python.org/mailman/listinfo/python-list
Re: unicode issue
On Wed, Sep 30, 2009 at 9:34 AM, gentlestone tibor.b...@hotmail.com wrote: Why don't work this code on Python 2.6? Or how can I do this job? Please be more specific than it doesn't work: * What exactly are you doing * What were you expecting the result of that to be * What is the actual result? -- André Engels, andreeng...@gmail.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Most active coroutine library project?
Hendrik van Rooyen hend...@microcorp.co.za writes: You were lucky - I started with an 8039 and the 8048 was a step up! This is getting a bit far away from python and coroutines, though. :-) Getting away from python in the opposite direction, if you click http://cufp.galois.com/2008/schedule.html the second presentation Controlling Hybrid Vehicles with Haskell might interest you. Basically it's about a high level DSL that generates realtime control code written in C. From the slides: * 5K lines of Haskell/atom replaced 120K lines of matlab, simulink, and visual basic. * 2 months to port simulink design to atom. * Rules with execution periods from 1ms to 10s all scheduled at compile time to a 1 ms main loop. * Atom design clears electronic/sw testing on first pass. * Currently in vehicle testing with no major issues. Code is here: http://hackage.haskell.org/package/atom Blurb: Atom is a Haskell DSL for designing hard realtime embedded programs. Based on conditional term rewriting, atom will compile a collection of atomic state transition rules to a C program with constant memory use and deterministic execution time. -- http://mail.python.org/mailman/listinfo/python-list
Re: Simple if-else question
John Yeung wrote: On Sep 29, 1:15 pm, Carl Banks pavlovevide...@gmail.com wrote: Hmm, I wonder if Python should emit a warning if an else is used on a for block with no break inside. I don't think the else can be invoked in any other way. As a bonus it could catch some cases where people mistakenly use it thinking it will execute [only] when there are no iterations. [Edit from Duncan Booth] I would definitely be in favor of a warning. Yes, people should read the docs more carefully, and yes, it would cost a certain amount of annoyance to implement this. But I don't think it would get in people's way if they do know how to use else, and I think it would cut down on the number of questions from mystified beginners, some of whom are much more aggressive than this particular OP about claiming that Python is broken (when it's actually behaving as designed). This sort of warning is appropriate for code checkers like Pylint, Pychecker, but not for the running interpreter. tjr -- http://mail.python.org/mailman/listinfo/python-list
Re: Can I make these getters/setters?
Michael George Lerner a écrit : Hi, As part of my GUI, I have lots of fields that people can fill in, defined like this: self.selection = Pmw.EntryField(group.interior(), labelpos='w', label_text='Selection to use: ', value='(polymer)', ) I then use self.selection.get_value() and self.selection.set_value(), and those two functions are the only ways in which I care about self.selection. I've never really used properties, getters or setters before. I tried this, but it didn't work: def __init__(self): self._selection = Pmw.EntryField(group.interior(), labelpos='w', label_text='Selection to use: ', value='(polymer)', ) self.selection = property(self._selection.get_value (),self._selection.set_value()) What you're passing here are the results of the calls to .get_value and .set_value, not the methods themselves. You'd want: self.selection = property( self._selection.get_value, self._selection.set_value ) But as Steven already mentioned, property only works as a class attribute, not as an instance attribute. What you need here is: class Parrot(object): def __init__(self): self._selection = Pmw.EntryField(...) selection = property( lambda self: self._selection.get_value(), lambda self, value: self._selection.set_value(value) ) Of course, I really have ~40 things that I'd like to do this for, not just one, so I'd like to find a fairly concise syntax. the property object is just one possible application of the descriptor protocol. You could write your own custom descriptor (warning: untested code, may contains typos etc): class FieldProperty(object): def __init__(self, fieldname): self._fieldname = fieldname def __get__(self, instance, cls): if instance is None: # can't work on the class itself return self return getattr(instance, self._fieldname).get_value() def __set__(self, instance, value): getattr(instance, self._fieldname).set_value(value) class Parrot(object): def __init__(self): self._selection = Pmw.EntryField(...) selection = FieldProperty(_selection) HTH -- http://mail.python.org/mailman/listinfo/python-list
Re: unicode issue
On 30. Sep., 09:41 h., Andre Engels andreeng...@gmail.com wrote: On Wed, Sep 30, 2009 at 9:34 AM, gentlestone tibor.b...@hotmail.com wrote: Why don't work this code on Python 2.6? Or how can I do this job? Please be more specific than it doesn't work: * What exactly are you doing * What were you expecting the result of that to be * What is the actual result? -- André Engels, andreeng...@gmail.com * What exactly are you doing replace non-ascii characters - see doctest documentation * What were you expecting the result of that to be see doctest documentation * What is the actual result? the actual result is unchanged name -- http://mail.python.org/mailman/listinfo/python-list
a questions about thread-safety of boolean variables
Hi,if I have a class A that contains a boolean variable named x, is it safe to read and change it from different threads without using locks? Is it guaranteed that A.x will be always True or False, and not any other weird value that that causes it to be inconsistent (assuming I only set it to True or False) ? I have a = A() first thread does: if a.x is True : pass 2nd thread does: a.x = False is it safe? and what if x was a dict ? especially if the only values that are set in the dictionary are simple: booleans, integers, floats, strings -- http://mail.python.org/mailman/listinfo/python-list
Re: Business issues regarding adapting Python
Python-related programming job. Positions both very rare (comparing with Java/C++ - maybe 1/100) and not pays well. And about 99% of them are web+Django. To who/what are you replying? Nope. Just a replic. BTW I agreed - just peek a good programmers and let them learn python. Literally in a days they will be able to write average production code. Don't expect hovewer that this code will be a very pythonic. Especially from guys with strong C++ - like background. My advise - show em a generators. IMHO that is a mindblowing feature for everybody who get up from static-type languages. Vladimir -- http://mail.python.org/mailman/listinfo/python-list
Re: unicode issue
I get the feeling that the problem is with the Python interactive mode. It does not have full unicode support, so uŽabovitá zmiešaná kaša is changed to u'\x8eabovit\xe1 zmie\x9aan\xe1 ka\x9aa'. If you call your code from another program, it might work correctly. -- André Engels, andreeng...@gmail.com -- http://mail.python.org/mailman/listinfo/python-list
Re: a questions about thread-safety of boolean variables
Hi, On 09/30/2009 01:53 PM, Charlie Dickens wrote: Hi, if I have a class A that contains a boolean variable named x, is it safe to read and change it from different threads without using locks? Is it guaranteed that A.x will be always True or False, and not any other weird value that that causes it to be inconsistent (assuming I only set it to True or False) ? The guarantee for A.x being only True or False, is independent of whether you use locks or not. It depends entirely on code that assigns to A.x. I have a = A() first thread does: if a.x is True : pass 2nd thread does: a.x = False is it safe? what if you have code like this: Thread 1 if a.x is True: doSomething() Thread 2 a.x == False ..and thread 2 executes *after* thread 1's 'if' condition but *before* doSomething(). If that behavior is acceptable in your application, you possibly don't even need a.x. and what if x was a dict ? especially if the only values that are set in the dictionary are simple: booleans, integers, floats, strings Same logic applies. hth, cheers, - steve -- random non tech spiel: http://lonetwin.blogspot.com/ tech randomness: http://lonehacks.blogspot.com/ what i'm stumbling into: http://lonetwin.stumbleupon.com/ -- http://mail.python.org/mailman/listinfo/python-list
Re: unicode issue
On 30. Sep., 10:35 h., Andre Engels andreeng...@gmail.com wrote: I get the feeling that the problem is with the Python interactive mode. It does not have full unicode support, so uŽabovitá zmiešaná kaša is changed to u'\x8eabovit\xe1 zmie\x9aan\xe1 ka\x9aa'. If you call your code from another program, it might work correctly. -- André Engels, andreeng...@gmail.com thx a lot I spent 2 days of my life beacause of this so doctests are unuseable for non-engish users in python - seems to be -- http://mail.python.org/mailman/listinfo/python-list
Re: unicode issue
On 30. Sep., 10:43 h., gentlestone tibor.b...@hotmail.com wrote: On 30. Sep., 10:35 h., Andre Engels andreeng...@gmail.com wrote: I get the feeling that the problem is with the Python interactive mode. It does not have full unicode support, so uŽabovitá zmiešaná kaša is changed to u'\x8eabovit\xe1 zmie\x9aan\xe1 ka\x9aa'. If you call your code from another program, it might work correctly. -- André Engels, andreeng...@gmail.com thx a lot I spent 2 days of my life beacause of this so doctests are unuseable for non-engish users in python - seems to be yes, you are right, now it works: def slugify(name): slugify(u'\u017dabovit\xe1 zmie\u0161an\xe1 ka\u0161a s.r.o') u'zabovita-zmiesana-kasa-sro' for key, value in _MAP.iteritems(): name = name.replace(key, value) return defaultfilters.slugify(name) -- http://mail.python.org/mailman/listinfo/python-list
Re: a questions about thread-safety of boolean variables
What about dictionaries? Reading values, adding new ones and the most important: changing an existing value - can it corrupt the state of the dictionary or that it is guaranteed that if I try to read the value of this key, I can only get the old one or the new one, but not something weird instead (because a different thread changed the value while this thread was trying to read it). About your remark that I don't need to check if a.x is True, I do need, and indeed it is acceptable that doSomething() will run, because this logic resides inside a loop, and it is only important for me that it will stop entering the loop sometime (I don't care if there are n iterations or n+1 or even n+m) Thanks On Wed, Sep 30, 2009 at 10:44 AM, steve st...@lonetwin.net wrote: Hi, On 09/30/2009 01:53 PM, Charlie Dickens wrote: Hi, if I have a class A that contains a boolean variable named x, is it safe to read and change it from different threads without using locks? Is it guaranteed that A.x will be always True or False, and not any other weird value that that causes it to be inconsistent (assuming I only set it to True or False) ? The guarantee for A.x being only True or False, is independent of whether you use locks or not. It depends entirely on code that assigns to A.x. I have a = A() first thread does: if a.x is True : pass 2nd thread does: a.x = False is it safe? what if you have code like this: Thread 1 if a.x is True: doSomething() Thread 2 a.x == False ..and thread 2 executes *after* thread 1's 'if' condition but *before* doSomething(). If that behavior is acceptable in your application, you possibly don't even need a.x. and what if x was a dict ? especially if the only values that are set in the dictionary are simple: booleans, integers, floats, strings Same logic applies. hth, cheers, - steve -- random non tech spiel: http://lonetwin.blogspot.com/ tech randomness: http://lonehacks.blogspot.com/ what i'm stumbling into: http://lonetwin.stumbleupon.com/ -- http://mail.python.org/mailman/listinfo/python-list
Re: How to pass a global variable to a module?
Mars creature wrote: On Sep 29, 12:49 pm, Rami Chowdhury rami.chowdh...@gmail.com wrote: On Tue, 29 Sep 2009 09:40:29 -0700, Mars creature jin...@gmail.com wrote: Dear Python users, I just start to use python and love this language. I met this problem when I try to save my functions in a separate file. The question is how I can pass a global variable to a function which is saved in another file. If I save the function I defined in the same file with the main program, there is no problem after I declare the global variable. But problem comes out when I save all the function is a separate file. Help is very much appreciated! Thanks! Jinbo In Python, as in many other languages, I'd advise that you think about whether your variable needs to be global, or whether you could (or should) simply pass the variable to the function as a parameter. HTH, Rami -- Rami Chowdhury Never attribute to malice that which can be attributed to stupidity -- Hanlon's Razor 408-597-7068 (US) / 07875-841-046 (UK) / 0189-245544 (BD) Thank you guys for the prompt and helpful response. From the link Gregor posted, it seems no way to share variable between modules. I can understand the point that global variables tends to mess up programs. Assume that I have 10 parameters need to pass to the function. If these parameters are fixed, I can use another module to store these 10 parameters, and import to the module, as suggested by jean-michel. But what if these 10 parameters will be changed in the main program? Passing the variable to the function as a parameter suggested by Rami will certainly do, but I am wondering weather there are other ways. What you'd like to code it? Thank you very much! Jinbo Why don't you post the function you're trying to code, with the parameter names ? Write the documentation for that function, write what it is supposed to do, the parameters, their purpose and the returned value. Just by doing this, you may be able to find all by yourself what should be the correct function prototype. JM -- http://mail.python.org/mailman/listinfo/python-list
Re: user authorization (with one time login) in a Python desktop application ?
Stef Mientki schrieb: By making use of the one time login on windows, I'm not sure, but I guess the user environment variable USER should hold the vald user, which has probably a one-to-one relation with the SID Environment variables are *very* easy to forge. But since you use windows, you can let windows do all the security stuff for you. Since u use sqlite, I guess that the database is stored on a file on a disk. You can use the file permission to give access only to the users permitted to access the file. But when you want to separate access at dataset/column/row level, then sqlite is not the best tool, since every user can open the database file with an other sqlite tool. Encryption will only take more time for rogue users, since the key needs to be stored in your application, and can be read by the user. I would recommend a real database server in this case, so the permission checks are out of the reach of the users. When u have a kerberos or active directory environment, some servers even can use kerberos to get the user name from the client. bye Rudi -- http://mail.python.org/mailman/listinfo/python-list
Re: Simple if-else question
On Sep 29, 6:38 pm, Duncan Booth duncan.bo...@invalid.invalid wrote: Carl Banks pavlovevide...@gmail.com wrote: Hmm, I wonder if Python should emit a warning if an else is used on a for block with no break inside. I don't think the else can be invoked in any other way. As a bonus it could catch some cases where people mistakenly use it thinking it will execute when there are no iterations. It will execute when there are no iterations. Did you mean to say people think it will execute *only* when there are no iterations? Yes thats what I thought. for-else looks similar to if-else and in if- else, else part is executed only when if part is not executed, but in for-else it has entirely a different job. Thats somewhat confusing, though it will be clear after playing around with it. - dksr -- http://mail.python.org/mailman/listinfo/python-list
Re: unicode issue
gentlestone wrote: Why don't work this code on Python 2.6? Or how can I do this job? _MAP = # LATIN u'À': 'A', u'Á': 'A', u'Â': 'A', u'Ã': 'A', u'Ä': 'A', u'Å': 'A', u'Æ': 'AE', u'Ç':'C', u'È': 'E', u'É': 'E', u'Ê': 'E', u'Ë': 'E', u'Ì': 'I', u'Í': 'I', u'Î': 'I', u'Ï': 'I', u'Ð': 'D', u'Ñ': 'N', u'Ò': 'O', u'Ó': 'O', u'Ô': 'O', u'Õ': 'O', u'Ö':'O', u'Ő': 'O', u'Ø': 'O', u'Ù': 'U', u'Ú': 'U', u'Û': 'U', u'Ü': 'U', u'Ű': 'U', u'Ý': 'Y', u'Þ': 'TH', u'ß': 'ss', u'à':'a', u'á':'a', u'â': 'a', u'ã': 'a', u'ä':'a', u'å': 'a', u'æ': 'ae', u'ç': 'c', u'è': 'e', u'é': 'e', u'ê': 'e', u'ë': 'e', u'ì': 'i', u'í': 'i', u'î': 'i', u'ï': 'i', u'ð': 'd', u'ñ': 'n', u'ò': 'o', u'ó':'o', u'ô': 'o', u'õ': 'o', u'ö': 'o', u'ő': 'o', u'ø': 'o', u'ù': 'u', u'ú': 'u', u'û': 'u', u'ü': 'u', u'ű': 'u', u'ý': 'y', u'þ': 'th', u'ÿ': 'y', # LATIN_SYMBOLS u'©':'(c)', # GREEK u'α':'a', u'β':'b', u'γ':'g', u'δ':'d', u'ε':'e', u'ζ':'z', u'η':'h', u'θ':'8', u'ι':'i', u'κ':'k', u'λ':'l', u'μ':'m', u'ν':'n', u'ξ':'3', u'ο':'o', u'π':'p', u'ρ':'r', u'σ':'s', u'τ':'t', u'υ':'y', u'φ':'f', u'χ':'x', u'ψ':'ps', u'ω':'w', u'ά':'a', u'έ':'e', u'ί':'i', u'ό':'o', u'ύ':'y', u'ή':'h', u'ώ':'w', u'ς':'s', u'ϊ':'i', u'ΰ':'y', u'ϋ':'y', u'ΐ':'i', u'Α':'A', u'Β':'B', u'Γ':'G', u'Δ':'D', u'Ε':'E', u'Ζ':'Z', u'Η':'H', u'Θ':'8', u'Ι':'I', u'Κ':'K', u'Λ':'L', u'Μ':'M', u'Ν':'N', u'Ξ':'3', u'Ο':'O', u'Π':'P', u'Ρ':'R', u'Σ':'S', u'Τ':'T', u'Υ':'Y', u'Φ':'F', u'Χ':'X', u'Ψ':'PS', u'Ω':'W', u'Ά':'A', u'Έ':'E', u'Ί':'I', u'Ό':'O', u'Ύ':'Y', u'Ή':'H', u'Ώ':'W', u'Ϊ':'I', u'Ϋ':'Y', # TURKISH u'ş':'s', u'Ş':'S', u'ı':'i', u'İ':'I', u'ç':'c', u'Ç':'C', u'ü':'u', u'Ü':'U', u'ö':'o', u'Ö':'O', u'ğ':'g', u'Ğ':'G', # RUSSIAN u'а':'a', u'б':'b', u'в':'v', u'г':'g', u'д':'d', u'е':'e', u'ё':'yo', u'ж':'zh', u'з':'z', u'и':'i', u'й':'j', u'к':'k', u'л':'l', u'м':'m', u'н':'n', u'о':'o', u'п':'p', u'р':'r', u'с':'s', u'т':'t', u'у':'u', u'ф':'f', u'х':'h', u'ц':'c', u'ч':'ch', u'ш':'sh', u'щ':'sh', u'ъ':'', u'ы':'y', u'ь':'', u'э':'e', u'ю':'yu', u'я':'ya', u'А':'A', u'Б':'B', u'В':'V', u'Г':'G', u'Д':'D', u'Е':'E', u'Ё':'Yo', u'Ж':'Zh', u'З':'Z', u'И':'I', u'Й':'J', u'К':'K', u'Л':'L', u'М':'M', u'Н':'N', u'О':'O', u'П':'P', u'Р':'R', u'С':'S', u'Т':'T', u'У':'U', u'Ф':'F', u'Х':'H', u'Ц':'C', u'Ч':'Ch', u'Ш':'Sh', u'Щ':'Sh', u'Ъ':'', u'Ы':'Y', u'Ь':'', u'Э':'E', u'Ю':'Yu', u'Я':'Ya', # UKRAINIAN u'Є':'Ye', u'І':'I', u'Ї':'Yi', u'Ґ':'G', u'є':'ye', u'і':'i', u'ї':'yi', u'ґ':'g', # CZECH u'č':'c', u'ď':'d', u'ě':'e', u'ň':'n', u'ř':'r', u'š':'s', u'ť':'t', u'ů':'u', u'ž':'z', u'Č':'C', u'Ď':'D', u'Ě':'E', u'Ň':'N', u'Ř':'R', u'Š':'S', u'Ť':'T', u'Ů':'U', u'Ž':'Z', # POLISH u'ą':'a', u'ć':'c', u'ę':'e', u'ł':'l', u'ń':'n', u'ó':'o', u'ś':'s', u'ź':'z', u'ż':'z', u'Ą':'A', u'Ć':'C', u'Ę':'e', u'Ł':'L', u'Ń':'N', u'Ó':'o', u'Ś':'S', u'Ź':'Z', u'Ż':'Z', # LATVIAN u'ā':'a', u'č':'c', u'ē':'e', u'ģ':'g', u'ī':'i', u'ķ':'k', u'ļ':'l', u'ņ':'n', u'š':'s', u'ū':'u', u'ž':'z', u'Ā':'A', u'Č':'C', u'Ē':'E', u'Ģ':'G', u'Ī':'i', u'Ķ':'k', u'Ļ':'L', u'Ņ':'N', u'Š':'S', u'Ū':'u', u'Ž':'Z' } def downcode(name): downcode(uŽabovitá zmiešaná kaša) u'Zabovita zmiesana kasa' for key, value in _MAP.iteritems(): name =ame.replace(key, value) return name Works for me: rrr = downcode(uŽabovitá zmiešaná kaša) print repr(rrr) print rrr prints out: u'Zabovita zmiesana kasa' Zabovita zmiesana kasa I did have to add an encoding declaration as line 2 of the file: #-*- coding: latin-1 -*- and I had to convince my editor (Komodo) to save the file in utf-8. DaveA -- http://mail.python.org/mailman/listinfo/python-list
Re: Simple if-else question
On Sep 30, 7:12 am, Steven D'Aprano ste...@remove.this.cybersource.com.au wrote: On Tue, 29 Sep 2009 22:29:10 -0700, John Yeung wrote: On Sep 29, 1:15 pm, Carl Banks pavlovevide...@gmail.com wrote: Hmm, I wonder if Python should emit a warning if an else is used on a for block with no break inside. I don't think the else can be invoked in any other way. As a bonus it could catch some cases where people mistakenly use it thinking it will execute [only] when there are no iterations. [Edit from Duncan Booth] I would definitely be in favor of a warning. Yes, people should read the docs more carefully, and yes, it would cost a certain amount of annoyance to implement this. But I don't think it would get in people's way if they do know how to use else, Of course it would. It would mean that everybody who knows how to use for...else correctly would have to deal with a totally useless warning. and I think it would cut down on the number of questions from mystified beginners, some of whom are much more aggressive than this particular OP about claiming that Python is broken (when it's actually behaving as designed). By raising a warning, you are implying that the behaviour is broken, or at least suspicious. Warnings mean something needs to be warned against -- don't do this. Warnings shouldn't be perfectly legitimate behaviours on the off-chance that the user is confused. Warning, are you sure you want to put the car into reverse? Perhaps you meant neutral? What would the warning say? Warning, you have used a legitimate Python control structure but you might be confused by it. Warning, did you mean if...else instead of for...else? Then we can add a whole lot of extra warnings to protect newbies who don't read docs (and probably won't read the warnings either) from themselves: Warning, did you mean obj(1) instead of obj[1]? Warning, did you mean def f(object) instead of class f(object)? Warning, did you mean class f(object) instead of def f(object)? Warning, did you mean 2*3 instead of 2**3? Warning, did you mean %s instead of %x? Warning, we think you're helpless and don't know what you want, perhaps you should be programming in PHP? I'm sympathetic to the desire to educate the n00bs, and in fact I've even suggested similar warnings myself. But I've been convinced that this is the wrong approach. Certainly the language shouldn't assume the programmer is confused. If this sort of warning belongs anywhere (and that's a big if), it belongs in an IDE. -- Steven Read the suggestion again - it's not a warning on the for-else structure, it's a warning when the for-else doesn't contain a break; he's theorising that a for-else without a break will always trigger the else, in which case it's almost certainly an error, and having the warning is not a bad idea. However, I assume you can get past the else by raising an exception, so the idea becomes a little muddled - do you warn when there is no break and no explicit raise caught outside the loop? What about an implicit exception? I would guess that code intentionally using an implicit exception to break out of a for loop is in need of a warning (and the author in need of the application of a lart), but I'm sure you could construct a plausible situation where it wouldn't be that bad... Anyway, I'm ambivalently on the fence. Iain -- http://mail.python.org/mailman/listinfo/python-list
Re: Simple if-else question
Iain King iaink...@gmail.com wrote: However, I assume you can get past the else by raising an exception, so the idea becomes a little muddled - do you warn when there is no break and no explicit raise caught outside the loop? What about an implicit exception? I would guess that code intentionally using an implicit exception to break out of a for loop is in need of a warning (and the author in need of the application of a lart), but I'm sure you could construct a plausible situation where it wouldn't be that bad... Anyway, I'm ambivalently on the fence. I think that in all cases of a for loop not containing break the following are exactly equivalent: for expr: suite1 else: suite2 and for expr: suite1 suite2 If you exit from the loop by an exception or a return statement suite2 is not executed in either case. The only case where the else clause makes a difference is when you break from the loop. So a warning for 'else' following a breakless for loop is not entirely unreasonable as you can rewrite the code without the else. However, if Python were going to start generating warnings though I'd much rather see it warn or even error for accessing a guaranteed uninitialised local variable. -- http://mail.python.org/mailman/listinfo/python-list
Re: Partial directory search question
import os
for filename in os.listdir(/usr/bbs/confs/september):
#stat = os.stat(filename)
if filename.startswith(_):
print filename
yes, as lallous mentioned, this can be done as a
list-comprehension/generator. If printing is all you want to do,
it's a nice and concise way:
print '\n'.join(fname for fname in os.listdir(loc) if
fname.startswith('_'))
If you're doing more processing than just printing it, your
for-loop is a better (clearer) way to go. If you have lots of
processing code, it might help to do the inverse:
for filename in os.listdir(location):
if not filename.startswith('_'): continue
lots()
of_processing()
and_your_complex_logic()
goes()
here()
It removes one level of indentation depth and makes it clear that
you don't intend to do anything with the non-leading-underscore
versions (rather than looking for a corresponding else: line
possibly screens later).
-tkc
--
http://mail.python.org/mailman/listinfo/python-list
Re: Storing a C pointer in a Python class instance
Thanks everyone. Finally, I used Falcolas suggestion and took into consideration sturlamolden's comments. Regards, Elias lallous lall...@lgwm.org wrote in message news:h9sgcn$iv...@aioe.org... Hello From my C extension module I want to store a C pointer in a given PyObject. The only way I figure how to do it is to use Py_BuildValues and store the poiner casted to Py_ssize_t, thus: Py_BuildValues(n, (Py_ssize_t)my_ptr) Can it be done differently? Regards, Elias -- http://mail.python.org/mailman/listinfo/python-list
Python book
Hello Can anyone suggest a good book Python book for advancing from beginner level? (I started with Learning Python 3rd ed) Regards, Elias -- http://mail.python.org/mailman/listinfo/python-list
Re: Python book
Learning Python and Python in a nutshell from O'Reilly Regards Parikshat Dubey On Wed, Sep 30, 2009 at 5:28 PM, lallous lall...@lgwm.org wrote: Hello Can anyone suggest a good book Python book for advancing from beginner level? (I started with Learning Python 3rd ed) Regards, Elias -- http://mail.python.org/mailman/listinfo/python-list -- -Fear not the path of truth, for the lack of people walking on it. Practice yourself, for heaven's sake, in little things; and thence proceed to greater. -- http://mail.python.org/mailman/listinfo/python-list
Re: Storing a C pointer in a Python class instance
Hello After using the PyCObject, I cannot pickle the class anymore. Any simple solution to this problem? (or resorting to __reduce__ is the only solution?) Thanks, Elias Falcolas garri...@gmail.com wrote in message news:9d3790aa-f7d9-4bb5-a81f-5428b2d60...@v25g2000yqk.googlegroups.com... On Sep 29, 2:27 am, lallous lall...@lgwm.org wrote: Hello From my C extension module I want to store a C pointer in a given PyObject. The only way I figure how to do it is to use Py_BuildValues and store the poiner casted to Py_ssize_t, thus: Py_BuildValues(n, (Py_ssize_t)my_ptr) Can it be done differently? Regards, Elias You can use a PyCObject_FromVoidPtr http://docs.python.org/c-api/cobject.html PyArg_ParseTuple(args, O, pyVoidPointer); castPointer = (type *) PyCObject_AsVoidPtr(pyVoidPointer); return PyCObject_FromVoidPtr((void *) castPointer, NULL); -- http://mail.python.org/mailman/listinfo/python-list
Re: Python book
On Wed, 2009-09-30 at 17:38 +0530, Parikshat Dubey wrote: Learning Python and Python in a nutshell from O'Reilly Regards Parikshat Dubey How to think like a computer scientist in python is a good book to go from beginner to intermediate level. another good book is dive into python. Mail me off the list if you want the soft book in compressed format. Happy hacking. Krishnakant. -- http://mail.python.org/mailman/listinfo/python-list
Python 2.6.3rc1 available
The first (and hopefully last) release candidate for Python 2.6.3 is now available via http://www.python.org/download/releases/2.6.3/ Source releases and Windows binaries are currently available, and Mac OS X binaries should be forthcoming. Nearly 100 bugs have been fixed since 2.6.2. Barring any unforeseen problems, we will make the final 2.6.3 release this Friday, October 2nd. Please give this release candidate a spin and let us know if you encounter any show stopping problems. Enjoy, -Barry PGP.sig Description: This is a digitally signed message part -- http://mail.python.org/mailman/listinfo/python-list
SQLObject 0.10.8
Hello! I'm pleased to announce version 0.10.8, a minor bugfix release of 0.10 branch of SQLObject. What is SQLObject = SQLObject is an object-relational mapper. Your database tables are described as classes, and rows are instances of those classes. SQLObject is meant to be easy to use and quick to get started with. SQLObject supports a number of backends: MySQL, PostgreSQL, SQLite, Firebird, Sybase, MSSQL and MaxDB (also known as SAPDB). Where is SQLObject == Site: http://sqlobject.org Development: http://sqlobject.org/devel/ Mailing list: https://lists.sourceforge.net/mailman/listinfo/sqlobject-discuss Archives: http://news.gmane.org/gmane.comp.python.sqlobject Download: http://cheeseshop.python.org/pypi/SQLObject/0.10.8 News and changes: http://sqlobject.org/News.html What's New == News since 0.10.7 - * Fixed a bug in logging to console - convert unicode to str. * Fixed an obscure bug in ConnectionHub triggered by an SQLObject class whose instances can be coerced to boolean False. For a more complete list, please see the news: http://sqlobject.org/News.html Oleg. -- Oleg Broytmanhttp://phd.pp.ru/p...@phd.pp.ru Programmers don't die, they just GOSUB without RETURN. -- http://mail.python.org/mailman/listinfo/python-list
SQLObject 0.11.2
Hello! I'm pleased to announce version 0.11.2, a minor bugfix release of 0.11 branch of SQLObject. What is SQLObject = SQLObject is an object-relational mapper. Your database tables are described as classes, and rows are instances of those classes. SQLObject is meant to be easy to use and quick to get started with. SQLObject supports a number of backends: MySQL, PostgreSQL, SQLite, Firebird, Sybase, MSSQL and MaxDB (also known as SAPDB). Where is SQLObject == Site: http://sqlobject.org Development: http://sqlobject.org/devel/ Mailing list: https://lists.sourceforge.net/mailman/listinfo/sqlobject-discuss Archives: http://news.gmane.org/gmane.comp.python.sqlobject Download: http://cheeseshop.python.org/pypi/SQLObject/0.11.2 News and changes: http://sqlobject.org/News.html What's New == News since 0.11.1 - * Fixed a bug in logging to console - convert unicode to str. * Fixed an obscure bug in ConnectionHub triggered by an SQLObject class whose instances can be coerced to boolean False. For a more complete list, please see the news: http://sqlobject.org/News.html Oleg. -- Oleg Broytmanhttp://phd.pp.ru/p...@phd.pp.ru Programmers don't die, they just GOSUB without RETURN. -- http://mail.python.org/mailman/listinfo/python-list
Re: is this whiff/wsgi claim true?
regarding http://aaron.oirt.rutgers.edu/myapp/docs/W1000.concepts On Sep 27, 11:12 pm, Дамјан Георгиевски gdam...@gmail.com wrote: mod_wsgi (the apache module) can be configured to automatically run any .wsgi file dropped in a folder just like CGI ... see here http://code.google.com/p/modwsgi/wiki/ConfigurationDirectives#WSGIScr... Thanks. I think this observation makes a liar of me :(. I'll have to reword the claim. I could split hairs to assert that this is not the same thing, but it's close enough -- Aaron Watters === Speak roughly to your little boy and beat him when he sneezes. He only does it to annoy because he knows it teases. I speak severely to my boy and beat him when he sneezes For he can thoroughly enjoy the pepper when he pleases! -- Lewis Carroll -- http://mail.python.org/mailman/listinfo/python-list
Re: unicode issue
On 30. Sep., 11:45 h., Dave Angel da...@dejaviewphoto.com wrote: gentlestone wrote: Why don't work this code on Python 2.6? Or how can I do this job? _MAP = # LATIN u'À': 'A', u'Á': 'A', u'Â': 'A', u'Ã': 'A', u'Ä': 'A', u'Å': 'A', u'Æ': 'AE', u'Ç':'C', u'È': 'E', u'É': 'E', u'Ê': 'E', u'Ë': 'E', u'Ì': 'I', u'Í': 'I', u'Î': 'I', u'Ï': 'I', u'Ð': 'D', u'Ñ': 'N', u'Ò': 'O', u'Ó': 'O', u'Ô': 'O', u'Õ': 'O', u'Ö':'O', u'Ő': 'O', u'Ø': 'O', u'Ù': 'U', u'Ú': 'U', u'Û': 'U', u'Ü': 'U', u'Ű': 'U', u'Ý': 'Y', u'Þ': 'TH', u'ß': 'ss', u'à':'a', u'á':'a', u'â': 'a', u'ã': 'a', u'ä':'a', u'å': 'a', u'æ': 'ae', u'ç': 'c', u'è': 'e', u'é': 'e', u'ê': 'e', u'ë': 'e', u'ì': 'i', u'í': 'i', u'î': 'i', u'ï': 'i', u'ð': 'd', u'ñ': 'n', u'ò': 'o', u'ó':'o', u'ô': 'o', u'õ': 'o', u'ö': 'o', u'ő': 'o', u'ø': 'o', u'ù': 'u', u'ú': 'u', u'û': 'u', u'ü': 'u', u'ű': 'u', u'ý': 'y', u'þ': 'th', u'ÿ': 'y', # LATIN_SYMBOLS u'©':'(c)', # GREEK u'α':'a', u'β':'b', u'γ':'g', u'δ':'d', u'ε':'e', u'ζ':'z', u'η':'h', u'θ':'8', u'ι':'i', u'κ':'k', u'λ':'l', u'μ':'m', u'ν':'n', u'ξ':'3', u'ο':'o', u'π':'p', u'ρ':'r', u'σ':'s', u'τ':'t', u'υ':'y', u'φ':'f', u'χ':'x', u'ψ':'ps', u'ω':'w', u'ά':'a', u'έ':'e', u'ί':'i', u'ό':'o', u'ύ':'y', u'ή':'h', u'ώ':'w', u'ς':'s', u'ϊ':'i', u'ΰ':'y', u'ϋ':'y', u'ΐ':'i', u'Α':'A', u'Β':'B', u'Γ':'G', u'Δ':'D', u'Ε':'E', u'Ζ':'Z', u'Η':'H', u'Θ':'8', u'Ι':'I', u'Κ':'K', u'Λ':'L', u'Μ':'M', u'Ν':'N', u'Ξ':'3', u'Ο':'O', u'Π':'P', u'Ρ':'R', u'Σ':'S', u'Τ':'T', u'Υ':'Y', u'Φ':'F', u'Χ':'X', u'Ψ':'PS', u'Ω':'W', u'Ά':'A', u'Έ':'E', u'Ί':'I', u'Ό':'O', u'Ύ':'Y', u'Ή':'H', u'Ώ':'W', u'Ϊ':'I', u'Ϋ':'Y', # TURKISH u'ş':'s', u'Ş':'S', u'ı':'i', u'İ':'I', u'ç':'c', u'Ç':'C', u'ü':'u', u'Ü':'U', u'ö':'o', u'Ö':'O', u'ğ':'g', u'Ğ':'G', # RUSSIAN u'а':'a', u'б':'b', u'в':'v', u'г':'g', u'д':'d', u'е':'e', u'ё':'yo', u'ж':'zh', u'з':'z', u'и':'i', u'й':'j', u'к':'k', u'л':'l', u'м':'m', u'н':'n', u'о':'o', u'п':'p', u'р':'r', u'с':'s', u'т':'t', u'у':'u', u'ф':'f', u'х':'h', u'ц':'c', u'ч':'ch', u'ш':'sh', u'щ':'sh', u'ъ':'', u'ы':'y', u'ь':'', u'э':'e', u'ю':'yu', u'я':'ya', u'А':'A', u'Б':'B', u'В':'V', u'Г':'G', u'Д':'D', u'Е':'E', u'Ё':'Yo', u'Ж':'Zh', u'З':'Z', u'И':'I', u'Й':'J', u'К':'K', u'Л':'L', u'М':'M', u'Н':'N', u'О':'O', u'П':'P', u'Р':'R', u'С':'S', u'Т':'T', u'У':'U', u'Ф':'F', u'Х':'H', u'Ц':'C', u'Ч':'Ch', u'Ш':'Sh', u'Щ':'Sh', u'Ъ':'', u'Ы':'Y', u'Ь':'', u'Э':'E', u'Ю':'Yu', u'Я':'Ya', # UKRAINIAN u'Є':'Ye', u'І':'I', u'Ї':'Yi', u'Ґ':'G', u'є':'ye', u'і':'i', u'ї':'yi', u'ґ':'g', # CZECH u'č':'c', u'ď':'d', u'ě':'e', u'ň':'n', u'ř':'r', u'š':'s', u'ť':'t', u'ů':'u', u'ž':'z', u'Č':'C', u'Ď':'D', u'Ě':'E', u'Ň':'N', u'Ř':'R', u'Š':'S', u'Ť':'T', u'Ů':'U', u'Ž':'Z', # POLISH u'ą':'a', u'ć':'c', u'ę':'e', u'ł':'l', u'ń':'n', u'ó':'o', u'ś':'s', u'ź':'z', u'ż':'z', u'Ą':'A', u'Ć':'C', u'Ę':'e', u'Ł':'L', u'Ń':'N', u'Ó':'o', u'Ś':'S', u'Ź':'Z', u'Ż':'Z', # LATVIAN u'ā':'a', u'č':'c', u'ē':'e', u'ģ':'g', u'ī':'i', u'ķ':'k', u'ļ':'l', u'ņ':'n', u'š':'s', u'ū':'u', u'ž':'z', u'Ā':'A', u'Č':'C', u'Ē':'E', u'Ģ':'G', u'Ī':'i', u'Ķ':'k', u'Ļ':'L', u'Ņ':'N', u'Š':'S', u'Ū':'u', u'Ž':'Z' } def downcode(name): downcode(uŽabovitá zmiešaná kaša) u'Zabovita zmiesana kasa' for key, value in _MAP.iteritems(): name =ame.replace(key, value) return name Works for me: rrr = downcode(uŽabovitá zmiešaná kaša) print repr(rrr) print rrr prints out: u'Zabovita zmiesana kasa' Zabovita zmiesana kasa I did have to add an encoding declaration as line 2 of the file: #-*- coding: latin-1 -*- and I had to convince my editor (Komodo) to save the file in utf-8. DaveA great, thanks you all, I changed utf-8 to latin-1 in the header and it works for me too how mutch time could I save, just ask in this forum -- http://mail.python.org/mailman/listinfo/python-list
Python logging and 1.5.2 compatibility
I'm planning to officially drop support for Python 1.5.2 in the logging package. When the logging package was introduced in Python 2.3, many Linux distros were shipping 1.5.2 as the system's Python, even though 2.2 had been out for a while. So it seemed important to support 1.5.2 for those sysadmins who wanted to use logging with their system Python. The Linux landscape has changed a bit since then. Most Linux distros ship with much more recent versions of Python, and so I no longer see 1.5.2 support as important. Dropping support for 1.5.2 means that future changes to logging will not be concerned with 1.5.2 compatibility. For example, boolean values which were 0/1 in the logging package will at some point be replaced by False/True, and newer language features will start to be used when changes are made. There are no plans for a specific cleanup exercise at the moment. In fact some changes made a while ago inadvertently broke 1.5.2 compatibility, but no-one's complained. So I'm assuming the whole thing is really a non-issue, and this post is just to keep everyone in the picture. A 1.5.2-compatible version of the package is still available via http://www.red-dove.com/python_logging.html if anyone needs it. This version is not actively maintained, but that shouldn't be an issue. Regards, Vinay Sajip -- http://mail.python.org/mailman/listinfo/python-list
Re: print object attributes recursively
lallous lall...@lgwm.org (l) wrote: l Hello l Suppose I have this code: l class X: ldef __init__(self, n): lself.L = [x for x in xrange(0, n+1)] l class Y: ldef __init__(self, n): lself.M = [X(x) for x in xrange(0, n)] l t = Y(5) l How can I easily print t and all its nested attributes? (Something like l PHP's print_r()) I don't know what print_r does, but in your example above print [x.L for x in t.M] would work. Probably you would split this into two methods in X and Y. -- Piet van Oostrum p...@vanoostrum.org WWW: http://pietvanoostrum.com/ PGP key: [8DAE142BE17999C4] -- http://mail.python.org/mailman/listinfo/python-list
Re: logging.handlers.SMTPHandler question
akonsu wrote: hello, SMTPHAndler seems to email every single record separately. is there a way to collect all log output and then send it in a single email message? or do i have to do it manually? You want the SummarisingHandler from this package: http://www.simplistix.co.uk/software/python/mailinglogger cheers, Chris -- Simplistix - Content Management, Batch Processing Python Consulting - http://www.simplistix.co.uk -- http://mail.python.org/mailman/listinfo/python-list
Re: Repeated output when logging exceptions
Vinay Sajip wrote: I'm not sure why you need all the code you've posted. The logging package allows you to add tracebacks to your logs by using the exception() method, which logs an ERROR with a traceback and is specifically intended for use from within exception handlers. You can also use the exc_info=True parameter with any logging method... Chris -- Simplistix - Content Management, Batch Processing Python Consulting - http://www.simplistix.co.uk -- http://mail.python.org/mailman/listinfo/python-list
Re: Repeated output when logging exceptions
John Gordon wrote: If I didn't do all that in a class, where would I do it? I find the configureLoggers method of ZConfig most convenient for this: http://pypi.python.org/pypi/ZConfig cheers, Chris -- Simplistix - Content Management, Batch Processing Python Consulting - http://www.simplistix.co.uk -- http://mail.python.org/mailman/listinfo/python-list
Re: problems trying to build python 2.6 as a shared library
Marco Nawijn wrote: 2. Add path to dynamic linker configuration file. This typically is in '/etc/ld.so.conf'. See man page for ld for more information. Yes, this was it. Don't forget to run ldconfig after you've changed /etc/ld.so.conf It's frustrating how the contents of this file vary from distro to distro, particularly w.r.t. /usr/local/lib :-( Chris -- Simplistix - Content Management, Batch Processing Python Consulting - http://www.simplistix.co.uk -- http://mail.python.org/mailman/listinfo/python-list
Re: Can I make these getters/setters?
Excellent. I now understand why it was broken, and a slightly tweaked version of FieldProperty does what I want. Thanks! -- http://mail.python.org/mailman/listinfo/python-list
Re: Cannot get POST to work
tedpot...@gmail.com tedpot...@gmail.com (t) wrote:
t Hi,
t I'm trying to post data to a short test script in php I wrote.
t The python code to do the post is
t import httplib
t #server address
t conn = httplib.HTTPConnection(localhost)
headers = {Content-type: application/x-www-form-urlencoded,
Accept: text/plain}
t #file location
t conn.request(POST, /programming/bots/test.php,ted=fred)
conn.request(POST, /programming/bots/test.php, ted=fred, headers)
t r1 = conn.getresponse()
t print r1.status, r1.reason
t data1 = r1.read()
t print data1
t conn.close()
t print new ok
t The PHP script is
t printhello br;
t print $_POST[ted];
t Ted post
--
Piet van Oostrum p...@vanoostrum.org
WWW: http://pietvanoostrum.com/
PGP key: [8DAE142BE17999C4]
--
http://mail.python.org/mailman/listinfo/python-list
Re: unicode issue
I recommend to use UTF-8 coding(specially in GNU/Linux) then write this in the second line: #-*- coding: latin-1 -*- -- http://mail.python.org/mailman/listinfo/python-list
Re: unicode issue
Dave Angel da...@dejaviewphoto.com wrote in message news:4ac328d4.3060...@dejaviewphoto.com... gentlestone wrote: Why don't work this code on Python 2.6? Or how can I do this job? _MAP = # LATIN u'À': 'A', u'Á': 'A', u'Â': 'A', u'Ã': 'A', u'Ä': 'A', u'Å': 'A', u'Æ': 'AE', u'Ç':'C', u'È': 'E', u'É': 'E', u'Ê': 'E', u'Ë': 'E', u'Ì': 'I', u'Í': 'I', u'Î': 'I', u'Ï': 'I', u'Ð': 'D', u'Ñ': 'N', u'Ò': 'O', u'Ó': 'O', u'Ô': 'O', u'Õ': 'O', u'Ö':'O', u'Ő': 'O', u'Ø': 'O', u'Ù': 'U', u'Ú': 'U', u'Û': 'U', u'Ü': 'U', u'Ű': 'U', u'Ý': 'Y', u'Þ': 'TH', u'ß': 'ss', u'à':'a', u'á':'a', u'â': 'a', u'ã': 'a', u'ä':'a', u'å': 'a', u'æ': 'ae', u'ç': 'c', u'è': 'e', u'é': 'e', u'ê': 'e', u'ë': 'e', u'ì': 'i', u'í': 'i', u'î': 'i', u'ï': 'i', u'ð': 'd', u'ñ': 'n', u'ò': 'o', u'ó':'o', u'ô': 'o', u'õ': 'o', u'ö': 'o', u'ő': 'o', u'ø': 'o', u'ù': 'u', u'ú': 'u', u'û': 'u', u'ü': 'u', u'ű': 'u', u'ý': 'y', u'þ': 'th', u'ÿ': 'y', # LATIN_SYMBOLS u'©':'(c)', # GREEK u'α':'a', u'β':'b', u'γ':'g', u'δ':'d', u'ε':'e', u'ζ':'z', u'η':'h', u'θ':'8', u'ι':'i', u'κ':'k', u'λ':'l', u'μ':'m', u'ν':'n', u'ξ':'3', u'ο':'o', u'π':'p', u'ρ':'r', u'σ':'s', u'τ':'t', u'υ':'y', u'φ':'f', u'χ':'x', u'ψ':'ps', u'ω':'w', u'ά':'a', u'έ':'e', u'ί':'i', u'ό':'o', u'ύ':'y', u'ή':'h', u'ώ':'w', u'ς':'s', u'ϊ':'i', u'ΰ':'y', u'ϋ':'y', u'ΐ':'i', u'Α':'A', u'Β':'B', u'Γ':'G', u'Δ':'D', u'Ε':'E', u'Ζ':'Z', u'Η':'H', u'Θ':'8', u'Ι':'I', u'Κ':'K', u'Λ':'L', u'Μ':'M', u'Ν':'N', u'Ξ':'3', u'Ο':'O', u'Π':'P', u'Ρ':'R', u'Σ':'S', u'Τ':'T', u'Υ':'Y', u'Φ':'F', u'Χ':'X', u'Ψ':'PS', u'Ω':'W', u'Ά':'A', u'Έ':'E', u'Ί':'I', u'Ό':'O', u'Ύ':'Y', u'Ή':'H', u'Ώ':'W', u'Ϊ':'I', u'Ϋ':'Y', # TURKISH u'ş':'s', u'Ş':'S', u'ı':'i', u'İ':'I', u'ç':'c', u'Ç':'C', u'ü':'u', u'Ü':'U', u'ö':'o', u'Ö':'O', u'ğ':'g', u'Ğ':'G', # RUSSIAN u'а':'a', u'б':'b', u'в':'v', u'г':'g', u'д':'d', u'е':'e', u'ё':'yo', u'ж':'zh', u'з':'z', u'и':'i', u'й':'j', u'к':'k', u'л':'l', u'м':'m', u'н':'n', u'о':'o', u'п':'p', u'р':'r', u'с':'s', u'т':'t', u'у':'u', u'ф':'f', u'х':'h', u'ц':'c', u'ч':'ch', u'ш':'sh', u'щ':'sh', u'ъ':'', u'ы':'y', u'ь':'', u'э':'e', u'ю':'yu', u'я':'ya', u'А':'A', u'Б':'B', u'В':'V', u'Г':'G', u'Д':'D', u'Е':'E', u'Ё':'Yo', u'Ж':'Zh', u'З':'Z', u'И':'I', u'Й':'J', u'К':'K', u'Л':'L', u'М':'M', u'Н':'N', u'О':'O', u'П':'P', u'Р':'R', u'С':'S', u'Т':'T', u'У':'U', u'Ф':'F', u'Х':'H', u'Ц':'C', u'Ч':'Ch', u'Ш':'Sh', u'Щ':'Sh', u'Ъ':'', u'Ы':'Y', u'Ь':'', u'Э':'E', u'Ю':'Yu', u'Я':'Ya', # UKRAINIAN u'Є':'Ye', u'І':'I', u'Ї':'Yi', u'Ґ':'G', u'є':'ye', u'і':'i', u'ї':'yi', u'ґ':'g', # CZECH u'č':'c', u'ď':'d', u'ě':'e', u'ň':'n', u'ř':'r', u'š':'s', u'ť':'t', u'ů':'u', u'ž':'z', u'Č':'C', u'Ď':'D', u'Ě':'E', u'Ň':'N', u'Ř':'R', u'Š':'S', u'Ť':'T', u'Ů':'U', u'Ž':'Z', # POLISH u'ą':'a', u'ć':'c', u'ę':'e', u'ł':'l', u'ń':'n', u'ó':'o', u'ś':'s', u'ź':'z', u'ż':'z', u'Ą':'A', u'Ć':'C', u'Ę':'e', u'Ł':'L', u'Ń':'N', u'Ó':'o', u'Ś':'S', u'Ź':'Z', u'Ż':'Z', # LATVIAN u'ā':'a', u'č':'c', u'ē':'e', u'ģ':'g', u'ī':'i', u'ķ':'k', u'ļ':'l', u'ņ':'n', u'š':'s', u'ū':'u', u'ž':'z', u'Ā':'A', u'Č':'C', u'Ē':'E', u'Ģ':'G', u'Ī':'i', u'Ķ':'k', u'Ļ':'L', u'Ņ':'N', u'Š':'S', u'Ū':'u', u'Ž':'Z' } def downcode(name): downcode(uŽabovitá zmiešaná kaša) u'Zabovita zmiesana kasa' for key, value in _MAP.iteritems(): name =ame.replace(key, value) return name Works for me: rrr = downcode(uŽabovitá zmiešaná kaša) print repr(rrr) print rrr prints out: u'Zabovita zmiesana kasa' Zabovita zmiesana kasa I did have to add an encoding declaration as line 2 of the file: #-*- coding: latin-1 -*- and I had to convince my editor (Komodo) to save the file in utf-8. Why decare latin-1 and save in utf-8? I'm not sure how you got that to work because those encodings aren't equivalent. I get: Traceback (most recent call last): File stdin, line 1, in module File testit.py, line 1 SyntaxError: encoding problem: utf-8 In fact, some of the characters in the above code don't map to latin-1. Traceback (most recent call last): File stdin, line 1, in module UnicodeEncodeError: 'latin-1' codec can't encode character u'\u0150' in position 309: ordinal not in range(256) import unicodedata as ud ud.name(u'\u0150') -Mark -- http://mail.python.org/mailman/listinfo/python-list
python memory use
The chart at http://shootout.alioth.debian.org/u32q/benchmark.php?test=alllang=javasteadylang2=pythonbox=1 is very interesting to me because it shows CPython using much less memory than Java for most tests. I'd be interested in knowing whether anybody can share info about how representative those test results are. For instance, suppose we're talking about a huge dictionary that maps integers to lists of integers (something I use in my code). Would something like that really take up much more memory in Java (using the closest equivalent Java data structures) than in CPython? I find it hard to believe that that would be the case, but I'm quite curious. (I could test the particular case I mention, but I'm wondering if someone has some fundamental knowledge that would lead to a basic understanding.) -- Gary Robinson CTO Emergent Music, LLC personal email: gary...@me.com work email: grobin...@flyfi.com Company: http://www.flyfi.com Blog:http://www.garyrobinson.net -- http://mail.python.org/mailman/listinfo/python-list
Re: unicode issue
Dave Angel da...@dejaviewphoto.com (DA) wrote: DA Works for me: DA rrr = downcode(uŽabovitá zmiešaná kaša) DA print repr(rrr) DA print rrr DA prints out: DA u'Zabovita zmiesana kasa' DA Zabovita zmiesana kasa DA I did have to add an encoding declaration as line 2 of the file: DA #-*- coding: latin-1 -*- DA and I had to convince my editor (Komodo) to save the file in utf-8. *Seems to work*. If you save in utf-8 the coding declaration also has to be utf-8. Besides, many of these characters won't be representable in latin-1. The reason it worked is that these characters were translated into two- or more-bytes sequences and replace did work with these. But it's dangerous, as they are then no longer the unicode characters they were intended to be. -- Piet van Oostrum p...@vanoostrum.org WWW: http://pietvanoostrum.com/ PGP key: [8DAE142BE17999C4] -- http://mail.python.org/mailman/listinfo/python-list
Re: Simple if-else question
On Sep 30, 3:40 am, Iain King iaink...@gmail.com wrote: Read the suggestion again - it's not a warning on the for-else structure, it's a warning when the for-else doesn't contain a break; he's theorising that a for-else without a break will always trigger the else, in which case it's almost certainly an error, and having the warning is not a bad idea. I actually had minor moment of confusion, somehow I was thinking that if no break appeared in the for-block then the else-block would be impossible to execute (the opposite of what actually happens). Even then just kind of throwing the idea out there, wasn't really advocating it. Now that I am no longer confused I definitely don't think there should be a warning. Carl Banks -- http://mail.python.org/mailman/listinfo/python-list
Re: Storing a C pointer in a Python class instance
On Sep 30, 5:24 am, lallous lall...@lgwm.org wrote: Hello After using the PyCObject, I cannot pickle the class anymore. Any simple solution to this problem? (or resorting to __reduce__ is the only solution?) You can't pickle a CObject, you'd have to create a custom type (one that implements one of the pickling methods) for that. Or arrange for whatever object contains the CObject to pack and unpack it manually. Out of curiosity, what kind of data you storing in this CObject? Maybe we can help you choose a better way to handle it at the C level. Carl Banks -- http://mail.python.org/mailman/listinfo/python-list
Re: Partial directory search question
Rami Chowdhury Never attributed to malice that which can be attributed to stupidity. -- Hanlon's Razor 408-597-7068 (US) / 07875-841-046 (UK) / 0189-245544 (BD) On Tuesday 29 September 2009 19:54:17 chad wrote: On Sep 29, 7:52 pm, chad cdal...@gmail.com wrote: On Sep 29, 7:20 pm, Tim Chase python.l...@tim.thechases.com wrote: What's the sanest way to print out all the files in the directory that start with the underscore? Ie, I just want to list _1, _2, _3, _4. I'd use a string's join() method to combine the results of a list-comprehension or generator that filtered the output of os.listdir() based on the startswith() method of the strings. Left intentionally oblique and code-free because this sounds a bit like a home-work problem. If you're a python coder, that should make pretty decent sense and be a one-liner to implement. -tkc Okay, sorry for the delay to the response. I got side tracked trying to stalk, I mean talk to the 59 year old neighbor girl. Anyways, I couldn't get it to one in one line. Here is what I did... % more rec.py #!/usr/local/bin/python import os import time for filename in os.listdir(/usr/bbs/confs/september): #stat = os.stat(filename) if filename.startswith(_): print filename ./rec.py _1 _2 _3 _4 _5 _6 _7 _8 It correctly prints out all the files in the directory that start with an underscore. er *couldn't get it into a one liner*. To get it into one line, I suggest: http://docs.python.org/tutorial/datastructures.html#list-comprehensions -- http://mail.python.org/mailman/listinfo/python-list
Re: Python book
My favorite book is Python Essential Reference from David M. Beazley. It is not a beginner book. It is about the python language and not about a framework or third-party library. It is much more complete than for instance Dive into python, but maybe somewhat more difficult. - Patrick lallous wrote: Hello Can anyone suggest a good book Python book for advancing from beginner level? (I started with Learning Python 3rd ed) Regards, Elias -- http://mail.python.org/mailman/listinfo/python-list
Re: Most active coroutine library project?
On Wednesday, 30 September 2009 09:46:38 Paul Rubin wrote: Getting away from python in the opposite direction, if you click http://cufp.galois.com/2008/schedule.html the second presentation Controlling Hybrid Vehicles with Haskell might interest you. Basically it's about a high level DSL that generates realtime control code written in C. From the slides: * 5K lines of Haskell/atom replaced 120K lines of matlab, simulink, and visual basic. * 2 months to port simulink design to atom. * Rules with execution periods from 1ms to 10s all scheduled at compile time to a 1 ms main loop. * Atom design clears electronic/sw testing on first pass. * Currently in vehicle testing with no major issues. Code is here: http://hackage.haskell.org/package/atom Blurb: Atom is a Haskell DSL for designing hard realtime embedded programs. Based on conditional term rewriting, atom will compile a collection of atomic state transition rules to a C program with constant memory use and deterministic execution time. Awesome! Thank you - Hendrik -- http://mail.python.org/mailman/listinfo/python-list
SVG PIL decoder
I would like to open svg files with PIL, but svg doesn't seem to be supported. Does anyone know about a svg decoder for the PIL? - Patrick -- http://mail.python.org/mailman/listinfo/python-list
Re: [Image-SIG] Some issue with easy_install and PIL/Imaging
Fredrik Lundh wrote: On Fri, Sep 11, 2009 at 3:49 PM, Chris Withers ch...@simplistix.co.uk wrote: Klein Stéphane wrote: Resume : 1. first question : why PIL package in pypi don't work ? Because Fred Lundh have his package distributions unfortunate names that setuptools doesn't like... It used to support this, but no longer does. To me, that says more about the state of setuptools than it does about the state of PIL, which has been using the same naming convention for 15 years. Yep, but it is now in the minority, and consistency in package naming is always good. Would there be any problems for you in naming the distribution in a setuptools-friendly way from the next point release? cheers, Chris -- Simplistix - Content Management, Batch Processing Python Consulting - http://www.simplistix.co.uk -- http://mail.python.org/mailman/listinfo/python-list
Re: SVG PIL decoder
On Wednesday 30 September 2009 18:01:50 Patrick Sabin wrote: I would like to open svg files with PIL, but svg doesn't seem to be supported. Does anyone know about a svg decoder for the PIL? Have a look at Cairo (python-cairo) in conjunction with librsvg (python-rsvg) -- that'll fix you up. You can go from an SVG to a PNG/array and thence into PIL if you need to. \d -- home: http://otherwise.relics.co.za/ 2D vector animation : https://savannah.nongnu.org/projects/things/ Font manager : https://savannah.nongnu.org/projects/fontypython/ -- http://mail.python.org/mailman/listinfo/python-list
Re: unicode issue
Piet van Oostrum wrote: Dave Angel da...@dejaviewphoto.com (DA) wrote: DA Works for me: DA rrr = downcode(uŽabovitá zmiešaná kaša) DA print repr(rrr) DA print rrr DA prints out: DA u'Zabovita zmiesana kasa' DA Zabovita zmiesana kasa DA I did have to add an encoding declaration as line 2 of the file: DA #-*- coding: latin-1 -*- DA and I had to convince my editor (Komodo) to save the file in utf-8. *Seems to work*. If you save in utf-8 the coding declaration also has to be utf-8. Besides, many of these characters won't be representable in latin-1. The reason it worked is that these characters were translated into two- or more-bytes sequences and replace did work with these. But it's dangerous, as they are then no longer the unicode characters they were intended to be. Thanks for the correction. What I meant by works for me is that the single example in the docstring translated okay. But I do have a lot to learn about using Unicode in sources, and I want to learn. So tell me, how were we supposed to guess what encoding the original message used? I originally had the mailing list message (in Thunderbird email). When I copied (copy/paste) to Komodo IDE (text editor), it wouldn't let me save because the file type was ASCII. So I randomly chosen latin-1 for file type, and it seemed to like it. At that point I expected and got errors from Python because I had no coding declaration. I used latin-1, and still had problems, though I forget what they were. Only when I changed the file encoding type again, to utf-8, did the errors go away. I agree that they should agree, but I don't know how to reconcile the copy/paste boundary, the file type (without BOM, which is another variable), the coding declaration, and the stdout implicit ASCII encoding. I understand a bunch of it, but not enough to be able to safely walk through the choices. Is this all written up in one place, to where an experienced programmer can make sense of it? I've nibbled at the edges (even wrote a UTF-8 encoder/decoder a dozen years ago). DaveA -- http://mail.python.org/mailman/listinfo/python-list
Re: Storing a C pointer in a Python class instance
On Sep 29, 11:16 am, sturlamolden sturlamol...@yahoo.no wrote: On 29 Sep, 19:11, Carl Banks pavlovevide...@gmail.com wrote: CObjects can be passed a C function as a deallocator; this should work as reliably as a custom class deallocator. Except that __del__ prevents cyclic GC. You are mistaken on two counts. First of all, a CObject is not a container. It can't prevent cyclic GC because it's never a part of a cycle. Second, CObjects do not have a __del__ method. They call the supplied constructor from the type's tp_dealloc slot. Use of the tp_dealloc slot does not, by itself, prevent cyclic GC. Bottom line is, the CObject's deallocator is as reliable as a custom type's tp_dealloc. Carl Banks -- http://mail.python.org/mailman/listinfo/python-list
Re: Python logging and 1.5.2 compatibility
On Sep 30, 1:26 pm, Vinay Sajip vinay_sa...@yahoo.co.uk wrote: A 1.5.2-compatible version of the package is still available viahttp://www.red-dove.com/python_logging.htmlif anyone needs it. This version is not actively maintained, but that shouldn't be an issue. Regards, Vinay Sajip As long as people can dig up an old version, everything should be fine. It's not like you're asking people to port over a quarter million lines of working code to the latest and untested :-) -- TerryP. -- http://mail.python.org/mailman/listinfo/python-list
Re: python memory use
On Sep 30, 9:38 am, Gary Robinson gary...@me.com wrote: The chart athttp://shootout.alioth.debian.org/u32q/benchmark.php?test=alllang=ja...is very interesting to me because it shows CPython using much less memory than Java for most tests. Which version of Python? If you're talking 3.x for Windows, any memory usage statistics are meaningless. I'd be interested in knowing whether anybody can share info about how representative those test results are. For instance, suppose we're talking about a huge dictionary that maps integers to lists of integers (something I use in my code). Would something like that really take up much more memory in Java (using the closest equivalent Java data structures) than in CPython? I find it hard to believe that that would be the case, but I'm quite curious. (I could test the particular case I mention, but I'm wondering if someone has some fundamental knowledge that would lead to a basic understanding.) -- Gary Robinson CTO Emergent Music, LLC personal email: gary...@me.com work email: grobin...@flyfi.com Company:http://www.flyfi.com Blog: http://www.garyrobinson.net -- http://mail.python.org/mailman/listinfo/python-list
Re: print object attributes recursively
On Sep 30, 1:49 pm, Piet van Oostrum p...@cs.uu.nl wrote: I don't know what print_r does, but in your example above print [x.L for x in t.M] would work. Probably you would split this into two methods in X and Y. -- Piet van Oostrum p...@vanoostrum.org WWW:http://pietvanoostrum.com/ PGP key: [8DAE142BE17999C4] PHP's print_r() is basically a recursive pretty printer; if you know Perl, think of it as PHPs idea of Data::Dumper. Personally, when I want to know whats in something, I invoke dir() on it and filter the results accordingly. Whether it is smart or stupid, it works well at an interactive prompt. -- http://mail.python.org/mailman/listinfo/python-list
Re: python memory use
On Sep 30, 7:38 am, Gary Robinson gary...@me.com wrote: The chart athttp://shootout.alioth.debian.org/u32q/benchmark.php?test=all〈=ja...is very interesting to me because it shows CPython using much less memory than Java for most tests. I'd be interested in knowing whether anybody can share info about how representative those test results are. For instance, suppose we're talking about a huge dictionary that maps integers to lists of integers (something I use in my code). Would something like that really take up much more memory in Java (using the closest equivalent Java data structures) than in CPython? I find it hard to believe that that would be the case, but I'm quite curious. (I could test the particular case I mention, but I'm wondering if someone has some fundamental knowledge that would lead to a basic understanding.) 1) That URL is approximate averages rather than the straight Java measurements. 2) Unless the programs are using *a lot* of memory you're just seeing default JVM memory use. 3) More of the Java programs may have been re-written to use quad core, which may use extra buffering. So look for tasks that use a lot of memory and watch for time/space tradeoffs - 2.1 Java 6 -server #229.32259,868 62 Python #614 min 674,316 167 Python #238 min 221,236 http://shootout.alioth.debian.org/u32/benchmark.php?test=binarytreeslang=all 2.8 Java 6 -server #246.87363,488 34 Python 9 min439,196 http://shootout.alioth.debian.org/u32/benchmark.php?test=knucleotidelang=all 2.5 Java 6 -server #42.87 473,324 6.5 Python #37.67 543,908 http://shootout.alioth.debian.org/u32/benchmark.php?test=revcomplang=all -- http://mail.python.org/mailman/listinfo/python-list
M2Crypto 0.20.1 won't build on Red Hat Linux
M2Crypto, from http://pypi.python.org/packages/source/M/M2Crypto/M2Crypto-0.20.1.tar.gz won't build on Red Hat Linux / 386. The error is swig -python -I/usr/local/include/python2.5 -I/usr/include -includeall -o SWIG/_m2crypto_wrap.c SWIG/_m2crypto.i /usr/include/openssl/opensslconf.h:27: Error: CPP #error This openssl-devel package does not work your architecture?. Use the -cpperraswarn option to continue swig processing. error: command 'swig' failed with exit status 1 It's some incompatibility between Red Hat include file packaging and M2Crypto. There was at one time a note on how to deal with this problem, but it's been deleted. It's still in Google's cache, though. http://74.125.155.132/search?q=cache:Bv79oR0b-msJ:www.heikkitoivonen.net/blog/2009/02/09/m2crypto-build-wrapper-for-fedora-core-based-distributions/+M2Crypto+buildingcd=2hl=enct=clnkgl=us I think I went through this mess two years ago, building M2Crypto 0.17. But I've forgotten the solution. What's current thinking on this? (I know, Python 2.6 has new SSL support, but MySQLdb doesn't support Python 2.6, so I can't convert yet.) John Nagle -- http://mail.python.org/mailman/listinfo/python-list
Re: python memory use
Honestly, the only performance data involving Java, that would ever surprise me: is when a Java program takes less time to startup and get going, then the computer it is being run from did ;). When planning-ahead for a project, I look at what performance the language implementations offer, in the light of Blazingly fast on all but the extreme cases or Fast enough for the job, and still cycles leftover to toast bread with like questions; the rest gets more specific to the problem domain. I have only ever had one main stream language prove to slow for my needs over the years, and that was because it was the least optimal use for perl... although I must admit, I would never want to try software rendering in pure Python (to what extent that is possible). -- http://mail.python.org/mailman/listinfo/python-list
Re: Python book
I like core python programming and dive into python. On Wed, Sep 30, 2009 at 11:57 AM, Patrick Sabin patrick.just4...@gmail.comwrote: My favorite book is Python Essential Reference from David M. Beazley. It is not a beginner book. It is about the python language and not about a framework or third-party library. It is much more complete than for instance Dive into python, but maybe somewhat more difficult. - Patrick lallous wrote: Hello Can anyone suggest a good book Python book for advancing from beginner level? (I started with Learning Python 3rd ed) Regards, Elias -- http://mail.python.org/mailman/listinfo/python-list -- http://www.goldwatches.com -- http://mail.python.org/mailman/listinfo/python-list
Re: is there some error crashing reporting
Stef Mientki wrote: like MadExcept for Delphi http://www.madshi.net/madExceptDescription.htm which catches any error, send an email with the error report and complete system analysis to the author, and continues the program (if possible) thanks, Stef apparently there isn't any such tool ;-( thanks, Stef -- http://mail.python.org/mailman/listinfo/python-list
Re: Python book
On Wed, Sep 30, 2009 at 7:58 AM, lallous lall...@lgwm.org wrote: Hello Can anyone suggest a good book Python book for advancing from beginner level? (I started with Learning Python 3rd ed) Regards, Elias dive into python and, for me, foundations of python network programming- narrowly targeted, but practical and full of good examples. Geremy Condra -- http://mail.python.org/mailman/listinfo/python-list
Problem building Python from source
Trying to do a vanilla cmmi: ~/Python-2.6.3rc1$ ./configure ~/Python-2.6.3rc1$ make ... Traceback (most recent call last): ... ImportError: No module named cStringIO make: *** [sharedmods] Error 1 The fix is to uncomment the line in Modules/Setup #cStringIO cStringIO.c Question: Is there an argument to ./configure or make, or an environment setting which will make cStringIO available without editing Modules/Setup ? Thanks, Kent -- http://mail.python.org/mailman/listinfo/python-list
Re: UnboundLocalError with extra code after return
Duncan Booth wrote: / class CallableOnlyOnce(object): /def __init__(self, func): self.func = func def __call__(self): f = self.func if f: self.func = None return f() / def callonce(func): / return CallableOnlyOnce(func) / @callonce /def t2(): print T2 called / t2() /T2 called / t2() // / You don't need both the CallableOnlyOnce class and the callonce function. How about the following ... just for fun, it provides the extra functionality of counting the number of times a function was *called*, even though it was *executed* only once: -- class ExecOnlyOnce(object): def __init__(self, f): print Making function '%s' into a one-shot % f.__name__ self.func = f self.func_call_count = 0 def __call__(self): print Calling one-shot function:, self.func.__name__ self.func_call_count += 1 if self.func_call_count == 1: return self.func() @ExecOnlyOnce def func1(): print inside original function: func1 return 111 @ExecOnlyOnce def func2(): print inside original function: func2 return 222 # run the functions # collect return values just once for each function r1 = func1() r2 = func2() func1() func1() func2() func1() # summary print \nSummary: for fn in (func1, func2): print Function '%s' was called %d times % (fn.func.__name__, fn.func_call_count) print r1 =, r1 print r2 =, r2 -- Output: Making function 'func1' into a one-shot Making function 'func2' into a one-shot Calling one-shot function: func1 inside original function: func1 Calling one-shot function: func2 inside original function: func2 Calling one-shot function: func1 Calling one-shot function: func1 Calling one-shot function: func2 Calling one-shot function: func1 Summary: Function 'func1' was called 4 times Function 'func2' was called 2 times r1 = 111 r2 = 222 -John -- http://mail.python.org/mailman/listinfo/python-list
Quick compare string to list
I'm reading in a text file, and for each line in the file, I'm looking for the existence of phrases from a list. The list contains approx. 120 items currently but will most likely grow. This procedure itself is not the main function of my program and only grew out of the need to reformat certain phrases I'm finding in a file before re-outputting it. But as I suspected, this searching of the lists slows the whole process way way down. Was looking for ideas of a better way to do this. I basically have mylist=[] ... code that reads in the flat file into string 'flatfileString' ... for listitem in mylist: if flatfileString.count(listitem): ...whatever...I found it. -- http://mail.python.org/mailman/listinfo/python-list
Re: Quick compare string to list
Scooter wrote: I'm reading in a text file, and for each line in the file, I'm looking for the existence of phrases from a list. The list contains approx. 120 items currently but will most likely grow. This procedure itself is not the main function of my program and only grew out of the need to reformat certain phrases I'm finding in a file before re-outputting it. But as I suspected, this searching of the lists slows the whole process way way down. Was looking for ideas of a better way to do this. I basically have mylist=[] ... code that reads in the flat file into string 'flatfileString' ... for listitem in mylist: if flatfileString.count(listitem): ...whatever...I found it. I would try: turn mylist into my_re and compile for line in file: while search line for first occurence of any phase returns yes: process reduce line to remainder of line after phrase found # assuming no overlaps tjr -- http://mail.python.org/mailman/listinfo/python-list
Re: Quick compare string to list
On 9/30/2009 11:36 AM Scooter said...
I'm reading in a text file, and for each line in the file, I'm looking
for the existence of phrases from a list. The list contains approx.
120 items currently but will most likely grow. This procedure itself
is not the main function of my program and only grew out of the need
to reformat certain phrases I'm finding in a file before re-outputting
it. But as I suspected, this searching of the lists slows the whole
process way way down. Was looking for ideas of a better way to do
this.
I basically have
mylist=[]
...
code that reads in the flat file into string 'flatfileString'
...
for listitem in mylist:
if flatfileString.count(listitem):
...whatever...I found it.
Whatever you do next to reformat those certain phrases will require a
second scan which doubles the time involved, and as you don't save the
count anyway, if mylist were exchange couplets you could use replace
directly. Something like:
mylist = [('Chevy','Chevrolet'),
('GM','General Motors'),
(... etc... )
]
for wrong,right in mylist:
flatfileString=flatfileString.replace(wrong,right)
Flavor to taste,
Emile
--
http://mail.python.org/mailman/listinfo/python-list
Re: python memory use
Gary Robinson gary...@me.com writes: I'd be interested in knowing whether anybody can share info about how representative those test results are. For instance, suppose we're talking about a huge dictionary that maps integers to lists of integers (something I use in my code). Would something like that really take up much more memory in Java (using the closest equivalent Java data structures) than in CPython? I find it hard to believe that that would be the case, but I'm quite curious. Arrays of Java ints would use less memory than lists of Python's boxed integers. If you want unboxed ints in Python, use the array module. -- http://mail.python.org/mailman/listinfo/python-list
Re: Python book
On Sep 30, 4:58 am, lallous lall...@lgwm.org wrote: Can anyone suggest a good book Python book for advancing from beginner level? (I started with Learning Python 3rd ed) From: James Matthews nyt...ail.com Date: Wed Sep 30 18:47:58 CEST 2009 I like core python programming and dive into python. hi Elias, and welcome to Python! thanks for the plug james! this question is asked somewhat regularly. i addressed it a few years but most of my reply still applies: http://www.mail-archive.com/python-list@python.org/msg109993.html one big difference is that Alan Gauld's tutorial is now located at http://www.alan-g.me.uk ... another difference is that a good number of ultra-beginner (new to programming not just Python) books have come on the market as well. finally, i created a DVD + PowerPoint version of Core Python called Python Fundamentals if you want to watch video presentations on topics in addition to reading. if you're also looking to take an intensive Python training course that will take you beyond beginner status, i'm offering one in about 6-7 weeks (near San Francisco) where i'll *give* you a copy of Core Python :-) ... and speaking of which, i'm actually starting to research what it would take to bring the book to a 3rd edition and soliciting assistance from the community. more info on both the course and the next edition here: http://mail.python.org/pipermail/baypiggies/2009-September/005483.html hope this helps! -- wesley - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Core Python Programming, Prentice Hall, (c)2007,2001 Python Fundamentals, Prentice Hall, (c)2009 http://corepython.com wesley.j.chun :: wescpy-at-gmail.com python training and technical consulting cyberweb.consulting : silicon valley, ca http://cyberwebconsulting.com -- http://mail.python.org/mailman/listinfo/python-list
Re: How to pass a global variable to a module?
On Sep 30, 5:31 am, Jean-Michel Pichavant jeanmic...@sequans.com wrote: Mars creature wrote: On Sep 29, 12:49 pm, Rami Chowdhury rami.chowdh...@gmail.com wrote: On Tue, 29 Sep 2009 09:40:29 -0700, Mars creature jin...@gmail.com wrote: Dear Python users, I just start to use python and love this language. I met this problem when I try to save my functions in a separate file. The question is how I can pass a global variable to a function which is saved in another file. If I save the function I defined in the same file with the main program, there is no problem after I declare the global variable. But problem comes out when I save all the function is a separate file. Help is very much appreciated! Thanks! Jinbo In Python, as in many other languages, I'd advise that you think about whether your variable needs to be global, or whether you could (or should) simply pass the variable to the function as a parameter. HTH, Rami -- Rami Chowdhury Never attribute to malice that which can be attributed to stupidity -- Hanlon's Razor 408-597-7068 (US) / 07875-841-046 (UK) / 0189-245544 (BD) Thank you guys for the prompt and helpful response. From the link Gregor posted, it seems no way to share variable between modules. I can understand the point that global variables tends to mess up programs. Assume that I have 10 parameters need to pass to the function. If these parameters are fixed, I can use another module to store these 10 parameters, and import to the module, as suggested by jean-michel. But what if these 10 parameters will be changed in the main program? Passing the variable to the function as a parameter suggested by Rami will certainly do, but I am wondering weather there are other ways. What you'd like to code it? Thank you very much! Jinbo Why don't you post the function you're trying to code, with the parameter names ? Write the documentation for that function, write what it is supposed to do, the parameters, their purpose and the returned value. Just by doing this, you may be able to find all by yourself what should be the correct function prototype. JM The function I am trying to code is quite simple and nothing special. I guess what I wanted to say was how to avoid typing all parameters everytime I am using the function. I used to use common block in Fortran to keep the frequently used data. I could've put all parameters in a file and import it, if they are unchangable. But in my case the parameters are changing. Allow me to say, unpacking the list or dictionary is the answer I wanted, although this is too trivial for some of you. Based on the discussion (correct me if I'm wrong), 1, try to avoid global, 2, if parameters are constant, put them in a tuple/list/dictionary and import them 3, if parameters are changeable, pack them into a list/dictionary and use *params (for list) or **params (for dict) to unpack and pass to the function. I want to thank you all! It's quite bit learning for me from your discussion. Jinbo -- http://mail.python.org/mailman/listinfo/python-list
How different are a generator's send and next methods
As far as I can tell, a generator's .next() is equivalent to .send(None). Is this true? If so, aren't they unified in a method with a single argument which defaults to None? - Andrey -- http://mail.python.org/mailman/listinfo/python-list
Re: python memory use
Gary Robinson: (I could test the particular case I mention, but I'm wondering if someone has some fundamental knowledge that would lead to a basic understanding.) Java is one of the languages most avid of memory, often even more than Python 2.x. Some bad people have said that Java developers were not that interested in saving RAM because Sun sells hardware, and the more RAM it uses the more they can sell ;-) More seriously, Java uses a complex hybrid generational garbage collectors, while CPython uses a much simpler reference count GC + cycle detector. A reference counter usually has a lower performance compared to good generational garbage collectors, especially if they are hybridized with several other algorithms, but it's simpler (and most things in CPython design are designed for simplicity even when they are a little less efficient, and among other things this simplicity helps this OpenSource project recruit and keep developers), it's almost deterministic (so for example in some situations you can forget to close a file) so it often uses less memory because in any moment you have only the objects you are using (reference cycles add a little extra complexity in this). While a generational GC keeps a lot of extra memory unused, free, etc. There are studies that show that if you use such kind of good generational GCs and you pay about a 2-5X memory penalty you can have a language about as fast as ones where you manually manage memory. Indeed today good Java programs are often no more than 2X slower than C++ and sometimes are about as fast or even faster (thanks to other optimizations, like a strong inlining of virtual methods done by HotSpot). If you want a language that uses less RAM you can try FreePascal :-) I think that among the languages designed to work with a GC, the D language is among the ones that uses less memory (because so far its GC is not that good, so it saves memory while being slower than the advanced GC used by Sun Java). On 64 bit systems Java Sun has added an optimization, certain pointers are compressed in 32 bits, reducing memory usage. Similar things may be done by the LLVM too in future: http://llvm.org/pubs/2005-06-12-MSP-PointerCompSlides.pdf Maybe someday 64-bit CPython will do the same, or maybe UnlandenSwallow or PyPy (Jthon in a sense may do it already if you use it on a 64 bit Java. I don't know). Bye, bearophile -- http://mail.python.org/mailman/listinfo/python-list
Re: Quick compare string to list
Scooter: I'm reading in a text file, and for each line in the file, I'm looking for the existence of phrases from a list. The list contains approx. 120 items currently but will most likely grow. This procedure itself is not the main function of my program and only grew out of the need to reformat certain phrases I'm finding in a file before re-outputting it. But as I suspected, this searching of the lists slows the whole process way way down. Was looking for ideas of a better way to do this. Know your basic computer science :-) http://en.wikipedia.org/wiki/Aho-Corasick_algorithm There are probably C implementations that can be used from Python, like: http://hkn.eecs.berkeley.edu/~dyoo/python/ahocorasick/ Bye, bearophile -- http://mail.python.org/mailman/listinfo/python-list
RotatingFileHandler issue
Hi.
I have a RotatingFileHandler for my logging system. I have it set to rotate
once the file becomes 5MB in size. Here is the conf line I have in my
logging config file:
[handler_fileHandlerDebugNoRequest]
class=handlers.RotatingFileHandler
formatter=formatterNoRequest
args=('/web/logs/gobuzz_debug.log', 'a', 5242880, 8)
However, my logging folder contains these files:
-rw-r--r-- 1 www-data www-data 566K Sep 30 16:35 gobuzz_debug.log
-rw-r--r-- 1 www-data www-data 4.2M Sep 30 16:35 gobuzz_debug.log.1
-rw-r--r-- 1 www-data www-data 572K Sep 30 16:36 gobuzz_debug.log.2
-rw-r--r-- 1 www-data www-data 558K Sep 30 16:35 gobuzz_debug.log.3
-rw-r--r-- 1 www-data www-data 3.7K Sep 29 20:52 gobuzz_debug.log.4
-rw-r--r-- 1 www-data www-data 3.7K Sep 29 20:52 gobuzz_debug.log.5
-rw-r--r-- 1 www-data www-data 566K Sep 30 16:36 gobuzz_debug.log.6
-rw-r--r-- 1 www-data www-data 1.6M Sep 30 16:36 gobuzz_debug.log.7
-rw-r--r-- 1 www-data www-data 45K Sep 29 20:50 gobuzz_debug.log.8
-rwxrwxrwx 1 www-data www-data 691K Sep 28 09:39 gobuzz_error.log
Clearly, the files are rotating far before they hit 5MB. The consequence of
such being that I'm losing a lot of log data. What gives? Am I doing
something wrong?
Thanks,
Max
--
http://mail.python.org/mailman/listinfo/python-list
Re: Storing a C pointer in a Python class instance
On 30 Sep, 19:03, Carl Banks pavlovevide...@gmail.com wrote: Second, CObjects do not have a __del__ method. They call the supplied constructor from the type's tp_dealloc slot. Use of the tp_dealloc slot does not, by itself, prevent cyclic GC. Bottom line is, the CObject's deallocator is as reliable as a custom type's tp_dealloc. You are right. I did not look at the PyCObject_* API close enough. I thought of wrapping the CObject with a Python class, and calling the destructor from __del__. That would be less reliable. S.M. -- http://mail.python.org/mailman/listinfo/python-list
Re: unicode issue
Dave Angel da...@ieee.org (DA) wrote: [snip] DA Thanks for the correction. What I meant by works for me is that the DA single example in the docstring translated okay. But I do have a lot to DA learn about using Unicode in sources, and I want to learn. DA So tell me, how were we supposed to guess what encoding the original DA message used? I originally had the mailing list message (in Thunderbird DA email). When I copied (copy/paste) to Komodo IDE (text editor), it wouldn't DA let me save because the file type was ASCII. So I randomly chosen latin-1 DA for file type, and it seemed to like it. You can see the encoding of the message in its headers. But it is not important, as the Unicode characters you see is what it is about. You just copy and paste them in your Python file. The Python file does not have to use the same encoding as the message from which you pasted. The editor will do the proper conversion. (If it doesn't throw it away immediately.) Only for the Python file you must choose an encoding that can encode all the characters that are in the file. In this case utf-8 is the only reasonable choice, but if there are only latin-1 characters in the file then of course latin-1 (iso-8859-1) will also be good. Any decent editor will only allow you to save in an encoding that can encode all the characters in the file, otherwise you will lose some characters. Because Python must also know which encoding you used and this is not in itself deductible from the file contents, you need the coding declaration. And it must be the same as the encoding in which the file is saved, otherwise Python will see something different than you saw in your editor. Sooner or later this will give you a big headache. DA At that point I expected and got errors from Python because I had no coding DA declaration. I used latin-1, and still had problems, though I forget what DA they were. Only when I changed the file encoding type again, to utf-8, did DA the errors go away. I agree that they should agree, but I don't know how to DA reconcile the copy/paste boundary, the file type (without BOM, which is DA another variable), the coding declaration, and the stdout implicit ASCII DA encoding. I understand a bunch of it, but not enough to be able to safely DA walk through the choices. DA Is this all written up in one place, to where an experienced programmer can DA make sense of it? I've nibbled at the edges (even wrote a UTF-8 DA encoder/decoder a dozen years ago). I don't know a place. Usually utf-8 is a safe bet but in some cases can be overkill. And then in you Python input/output (read/write) you may have to use a different encoding if the programs that you have to communicate with expect something different. -- Piet van Oostrum p...@vanoostrum.org WWW: http://pietvanoostrum.com/ PGP key: [8DAE142BE17999C4] -- http://mail.python.org/mailman/listinfo/python-list
Re: Quick compare string to list
On Wed, 30 Sep 2009 11:36:03 -0700, Scooter wrote:
I'm reading in a text file, and for each line in the file, I'm looking
for the existence of phrases from a list. The list contains approx. 120
items currently but will most likely grow. This procedure itself is not
the main function of my program and only grew out of the need to
reformat certain phrases I'm finding in a file before re-outputting it.
But as I suspected, this searching of the lists slows the whole process
way way down. Was looking for ideas of a better way to do this.
I basically have
mylist=[]
...
code that reads in the flat file into string 'flatfileString' ...
for listitem in mylist:
if flatfileString.count(listitem):
...whatever...I found it.
For starters, why are you bothering to count occurrences of the string if
you only need a There/Not There answer? That's wasteful... it means the
code has to walk the entire length of the flatfileString every single
time. Now, string.count() is likely to be fast because it's written in C,
but it's not instantaneous. Better is:
for listitem in mylist:
if listitem in flatfileString:
process()
That should show a small improvement, but you can probably do better.
Here's two more simple approaches worth trying, all untested:
# Use a regex.
r = re.compile('|'.join(mylist)) # item 0 or item 1 or ...
if r.search(flatfileString):
process()
# Use a loop, re-writing it as a list comprehension for speed.
if any([item in flatfileString for item in mylist]):
process()
# As above, but a generator expression instead.
if any(item in flatfileString for item in mylist):
process()
You will probably find that which approach is faster depends on how many
items are in mylist.
If none of these approaches are fast enough, you may need to look at a
more complicated approach, such as Bearophile's suggestion.
--
Steven
--
http://mail.python.org/mailman/listinfo/python-list
Re: Most active coroutine library project?
On Mon, 28 Sep 2009 15:44:48 +0100, Grant Edwards inva...@invalid.invalid wrote: $10 is pretty expensive for a lot of applications. I bet that processor also uses a lot of power and takes up a lot of board space. If you've only got $2-$3 in the money budget, 200uA at 1.8V in the power budget, and 6mm X 6mm of board-space, your choices are limited. Besides If you can get by with 256 or 512 bytes of RAM, why pay 4X the price for a 1K part? Besides which, the 8032 instruction set and development tools are icky compared to something like an MSP430 or an AVR. ;) [The 8032 is still head and shoulders above the 8-bit PIC family.] I was going to say, you want 256 bytes of RAM, you profligate so-and-so? Here, have 32 bytes of data space and stop your whining :-) -- Rhodri James *-* Wildebeest Herder to the Masses -- http://mail.python.org/mailman/listinfo/python-list
Re: iterate over list while changing it
In article mailman.430.1253826262.2807.python-l...@python.org, Terry Reedy tjre...@udel.edu wrote: Torsten Mohr wrote: a = [1, 2, 3, 4, 5, 6] for i, x in enumerate(a): If you change a list while iterating over, start at the tail. This only applies if you add/remove elements; simply updating elements does not require starting at the tail. -- Aahz (a...@pythoncraft.com) * http://www.pythoncraft.com/ Normal is what cuts off your sixth finger and your tail... --Siobhan -- http://mail.python.org/mailman/listinfo/python-list
Re: SVG PIL decoder
Donn wrote:
Have a look at Cairo (python-cairo) in conjunction with librsvg (python-rsvg)
-- that'll fix you up. You can go from an SVG to a PNG/array and thence into
PIL if you need to.
Thanks for the tip. Got it work, although it was a bit tricky, as
resizing doesn't seem to be supported by python-rsvg and
cairo.ImageSurface.create_from_png doesn't allow StringIO or
TemporaryFile for some reason (got Memory Error). So the code, if
someone else needs it or someone can improve it:
def open_svg_as_image(fn, width, height):
tmpfd, tmppath = tempfile.mkstemp(.png)
tmpfile = os.fdopen(tmpfd,'w')
file = StringIO.StringIO()
svgsurface = cairo.SVGSurface (file, width, height)
svgctx = cairo.Context(svgsurface)
svg = rsvg.Handle(file=fn)
svgwidth = svg.get_property('width')
svgheight = svg.get_property('height')
svgctx.scale(width/float(svgwidth),height/float(svgheight))
svg.render_cairo(svgctx)
svgsurface.write_to_png(tmpfile)
tmpfile.close()
svgsurface.finish()
tmpfile = open(tmppath, 'r')
imgsurface = cairo.ImageSurface.create_from_png(tmpfile)
imgwidth = imgsurface.get_width()
imgheight = imgsurface.get_height()
data = imgsurface.get_data()
im = Image.frombuffer(RGBA,(imgwidth, imgheight),
data ,raw,RGBA,0,1)
os.remove(tmppath)
return im
--
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Re: Most active coroutine library project?
On 2009-09-30, Rhodri James rho...@wildebst.demon.co.uk wrote: On Mon, 28 Sep 2009 15:44:48 +0100, Grant Edwards inva...@invalid.invalid wrote: $10 is pretty expensive for a lot of applications. I bet that processor also uses a lot of power and takes up a lot of board space. If you've only got $2-$3 in the money budget, 200uA at 1.8V in the power budget, and 6mm X 6mm of board-space, your choices are limited. Besides If you can get by with 256 or 512 bytes of RAM, why pay 4X the price for a 1K part? Besides which, the 8032 instruction set and development tools are icky compared to something like an MSP430 or an AVR. ;) [The 8032 is still head and shoulders above the 8-bit PIC family.] I was going to say, you want 256 bytes of RAM, you profligate so-and-so? Here, have 32 bytes of data space and stop your whining :-) What? You had 1's? All we had were 0's. And we _liked_ it. -- Grant -- http://mail.python.org/mailman/listinfo/python-list
Re: Python logging and 1.5.2 compatibility
In article mailman.693.1254317221.2807.python-l...@python.org, Vinay Sajip vinay_sa...@yahoo.co.uk wrote: I'm planning to officially drop support for Python 1.5.2 in the logging package. Sounds good -- posting publicly about it is definitely appreciated. -- Aahz (a...@pythoncraft.com) * http://www.pythoncraft.com/ Normal is what cuts off your sixth finger and your tail... --Siobhan -- http://mail.python.org/mailman/listinfo/python-list
sympy returns a dictionary sometimes, and sometimes a list of tuples...why?
Hello,
I wrote a very simple script using sympy, and things were working
fine, except for one problem. So I have:
from sympy import *
x, y = symbols('x','y',real=True)
alpha,beta,gamma=symbols('alpha','beta','gamma',real=True)
alpha_p,beta_p,gamma_p=symbols('alpha_p','beta_p','gamma_p',real=True)
L = symbols('L',real=True)
and then I look at solutions to some equations, like:
solution=solve([beta*y - alpha*(1+y/L) ,
-beta_p*x + alpha_p ], [x, y])
print solution
which prints (correctly):
{x: alpha_p/beta_p, y: L*alpha/(-alpha + L*beta)}
now, if I do:
solution=solve([beta*y - alpha*(1+y/L) - gamma*x*(1+y/L),
-beta_p*x + alpha_p - gamma_p*y], [x, y])
print solution
I get a very long solution, which isn't a problem, but it isn't a
dictionary: I can't tell what is the solution for x and for y. What
I get is:
[(-(alpha*beta_p*abs(gamma)*abs(gamma_p) + alpha_p*gamma*abs(gamma)
*abs(gamma_p) - L*beta*beta_p*abs(gamma)*abs(gamma_p) -
L*gamma*gamma_p*abs(gamma)*abs(gamma_p) - gamma*gamma_p*
(2*alpha*alpha_p*beta_p*gamma - 2*L*alpha_p*beta*beta_p*gamma +
2*L*alpha*beta_p*gamma*gamma_p + alpha**2*beta_p**2 +
alpha_p**2*gamma**2 + L**2*beta**2*beta_p**2 +
L**2*gamma**2*gamma_p**2 - 2*L*alpha*beta*beta_p**2 +
2*L*alpha_p*gamma_p*gamma**2 + 2*beta*beta_p*gamma*gamma_p*L**2)**
(1/2))/(2*beta_p*gamma*abs(gamma)*abs(gamma_p)) + alpha_p/beta_p,
(alpha*beta_p*abs(gamma)*abs(gamma_p) + alpha_p*gamma*abs(gamma)*abs
(gamma_p) - L*beta*beta_p*abs(gamma)*abs(gamma_p) -
L*gamma*gamma_p*abs(gamma)*abs(gamma_p) - gamma*gamma_p*
(2*alpha*alpha_p*beta_p*gamma - 2*L*alpha_p*beta*beta_p*gamma +
2*L*alpha*beta_p*gamma*gamma_p + alpha**2*beta_p**2 +
alpha_p**2*gamma**2 + L**2*beta**2*beta_p**2 +
L**2*gamma**2*gamma_p**2 - 2*L*alpha*beta*beta_p**2 +
2*L*alpha_p*gamma_p*gamma**2 + 2*beta*beta_p*gamma*gamma_p*L**2)**
(1/2))/(2*gamma*gamma_p*abs(gamma)*abs(gamma_p))), (-(alpha*beta_p*abs
(gamma)*abs(gamma_p) + alpha_p*gamma*abs(gamma)*abs(gamma_p) -
L*beta*beta_p*abs(gamma)*abs(gamma_p) - L*gamma*gamma_p*abs(gamma)*abs
(gamma_p) + gamma*gamma_p*(2*alpha*alpha_p*beta_p*gamma -
2*L*alpha_p*beta*beta_p*gamma + 2*L*alpha*beta_p*gamma*gamma_p +
alpha**2*beta_p**2 + alpha_p**2*gamma**2 + L**2*beta**2*beta_p**2 +
L**2*gamma**2*gamma_p**2 - 2*L*alpha*beta*beta_p**2 +
2*L*alpha_p*gamma_p*gamma**2 + 2*beta*beta_p*gamma*gamma_p*L**2)**
(1/2))/(2*beta_p*gamma*abs(gamma)*abs(gamma_p)) + alpha_p/beta_p,
(alpha*beta_p*abs(gamma)*abs(gamma_p) + alpha_p*gamma*abs(gamma)*abs
(gamma_p) - L*beta*beta_p*abs(gamma)*abs(gamma_p) -
L*gamma*gamma_p*abs(gamma)*abs(gamma_p) + gamma*gamma_p*
(2*alpha*alpha_p*beta_p*gamma - 2*L*alpha_p*beta*beta_p*gamma +
2*L*alpha*beta_p*gamma*gamma_p + alpha**2*beta_p**2 +
alpha_p**2*gamma**2 + L**2*beta**2*beta_p**2 +
L**2*gamma**2*gamma_p**2 - 2*L*alpha*beta*beta_p**2 +
2*L*alpha_p*gamma_p*gamma**2 + 2*beta*beta_p*gamma*gamma_p*L**2)**
(1/2))/(2*gamma*gamma_p*abs(gamma)*abs(gamma_p)))]
which, if you ignore the complexity, is a list of two items, each
item is a tuple of length 2. What does this mean? I can handle the
mess of the solution, but I'd like to know what is a solution for x,
and for y. Why isn't it in a dictionary? Am I doing something wrong?
thanks,
Brian Blais
--
Brian Blais
bbl...@bryant.edu
http://web.bryant.edu/~bblais
--
http://mail.python.org/mailman/listinfo/python-list
ActivePython 3.1.1.2 vs Python 3.1.1 for OSX?
I am just curious which I should use. I am going to start learning Python soon. Are they comparable and I just do a eenie meenie minie moe? Bob -- http://mail.python.org/mailman/listinfo/python-list
Re: SVG PIL decoder
On Thursday 01 October 2009 01:08:28 Patrick Sabin wrote: Thanks for the tip. Got it work, although it was a bit tricky, as resizing doesn't seem to be supported by python-rsvg and cairo.ImageSurface.create_from_png doesn't allow StringIO or My best suggestions are to visit the Cairo website -- inside there somewhere is a recipe page with many samples in Python. Next would be http://www.tortall.net/mu/wiki/CairoTutorial. Third is a tutorial I made (perhaps less useful) on my site http://otherwise.relics.co.za/wiki/Tuts/Python/Cairo/ links at bottom of that page Fourth is to join the ca...@cairographics.org mailing list at http://lists.cairographics.org/mailman/listinfo/cairo they are super helpful. Lastly is my animation API (in sig)which is also Python and may help you with the source. The general idea for scaling is to use matrices (cairo provides all commands) and then output the surface to a file-like object. My animation API brings selected snippets of SVG in from an Inkscape file (tagged by id), animates them by tweening and can output each frame to another SVG or to a PNG. HTH, \d -- home: http://otherwise.relics.co.za/ 2D vector animation : https://savannah.nongnu.org/projects/things/ Font manager : https://savannah.nongnu.org/projects/fontypython/ -- http://mail.python.org/mailman/listinfo/python-list
Re: How to pass a global variable to a module?
Mars creature wrote: On Sep 30, 5:31 am, Jean-Michel Pichavant jeanmic...@sequans.com wrote: Mars creature wrote: On Sep 29, 12:49 pm, Rami Chowdhury rami.chowdh...@gmail.com wrote: On Tue, 29 Sep 2009 09:40:29 -0700, Mars creature jin...@gmail.com wrote: Dear Python users, I just start to use python and love this language. I met this problem when I try to save my functions in a separate file. The question is how I can pass a global variable to a function which is saved in another file. If I save the function I defined in the same file with the main program, there is no problem after I declare the global variable. But problem comes out when I save all the function is a separate file. Help is very much appreciated! Thanks! Jinbo In Python, as in many other languages, I'd advise that you think about whether your variable needs to be global, or whether you could (or should) simply pass the variable to the function as a parameter. HTH, Rami -- Rami Chowdhury Never attribute to malice that which can be attributed to stupidity -- Hanlon's Razor 408-597-7068 (US) / 07875-841-046 (UK) / 0189-245544 (BD) Thank you guys for the prompt and helpful response. From the link Gregor posted, it seems no way to share variable between modules. I can understand the point that global variables tends to mess up programs. Assume that I have 10 parameters need to pass to the function. If these parameters are fixed, I can use another module to store these 10 parameters, and import to the module, as suggested by jean-michel. But what if these 10 parameters will be changed in the main program? Passing the variable to the function as a parameter suggested by Rami will certainly do, but I am wondering weather there are other ways. What you'd like to code it? Thank you very much! Jinbo Why don't you post the function you're trying to code, with the parameter names ? Write the documentation for that function, write what it is supposed to do, the parameters, their purpose and the returned value. Just by doing this, you may be able to find all by yourself what should be the correct function prototype. JM The function I am trying to code is quite simple and nothing special. I guess what I wanted to say was how to avoid typing all parameters everytime I am using the function. I used to use common block in Fortran to keep the frequently used data. I could've put all parameters in a file and import it, if they are unchangable. But in my case the parameters are changing. Write a function that calls the function you want to call, taking the arguments you want to retype, and filling in all the arguments you don't: def stand_in (great, nifty): call a_function (bo, great, ri, nifty, ng) Mel. -- http://mail.python.org/mailman/listinfo/python-list
Python and ASP - failure on 2nd and subsequent page loads
I would be grateful for any advice about a problem which is preventing me from using Python for my current project. I am hoping to use Python 2.6.2 on the server side with Microsoft ASP [not ASP.NET; version details below]. The behavior I see is: 1. Load very simple page [text below] into browser [Firefox or IE, versions below]. Everything displays, fine. 2. Exit browser, restart it, and reload the same page; or open a second tab and load the same page. 3. In either case, page fails to load, with error: Python ActiveX Scripting Engine, ASP 0211 (0x80020009) A built-in ASP object has been referenced, which is no longer valid. If I edit the page in any way, or just 'touch' it, and refresh the browser, the page will load correctly the first time, and then fail again as described. The page I am using has no actual Python scripting, just the LANGUAGE directive. Here is the complete page text: %...@language=python% HTML head/head body h1Python Test/h1 p /body /html Of course, things don't get any better if I put in % % with some actual Python in between. I found a five-year-old newsgroup posting with what seemed to be a similar (but not identical) problem. This thread said that the problem went away if server-side debugging was turned off. I have it turned off, no effect.I also tried adding some Response object settings to disallow cacheing, but these did not have any effect. Version Info: Python: 2.6.2 PyWin: pywin32-214 (I ran the client\pyscript.py and server\axsite.py scripts for setup) Client OS: Windows XP Pro SP2 Browsers: Firefox 3.0.14, IE 8.0.6 [identical bug] Server: IIS 5.1 Note, I also tried using Python 3.1 with corresponding pywin, but I could not get that to work with ASP at all; just got server 500 errors. I'd prefer to use Python 2.6.2 anyway since I am fairly new to Python. I would be very grateful for any expert pointers on this, since if I can't solve it I will probably have to go use PHP, Javascript, or something else. Thank you! -- http://mail.python.org/mailman/listinfo/python-list
Re: iterate over list while changing it
a = [1, 2, 3, 4, 5, 6] for i, x in enumerate(a): If you change a list while iterating over, start at the tail. ...reversed(enumerate(a)) Python 2.6.2 (r262:71600, Jul 20 2009, 02:19:59) a = [1, 2, 3, 4, 5, 6] reversed(enumerate(a)) Traceback (most recent call last): File stdin, line 1, in module TypeError: argument to reversed() must be a sequence no such list method, which mean you did not run the above before posting. Boo! -- дамјан ( http://softver.org.mk/damjan/ ) Teaching a pig to sing wastes your time annoys the pig. -- http://mail.python.org/mailman/listinfo/python-list
Re: Partial directory search question
Tim Chase python.l...@tim.thechases.com wrote:
If you're doing more processing than just printing it, your
for-loop is a better (clearer) way to go. If you have lots of
processing code, it might help to do the inverse:
for filename in os.listdir(location):
if not filename.startswith('_'): continue
lots()
of_processing()
and_your_complex_logic()
goes()
here()
Personally, I'd still go with a generator to drive the for-loop:
underscored_files = (f for f in os.listdir(location) if not
f.startswith('_'))
for filename in underscored_files:
etc...
What I'm traversing in the for-loop is far more obvious (to me) from
the name of the generator than from having to parse the first few
lines of the loop. It's a lot easier to genericise that behaviour too.
--
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Re: Simple if-else question
dksr dksre...@gmail.com wrote: Yes thats what I thought. for-else looks similar to if-else and in if- else, else part is executed only when if part is not executed, but in for-else it has entirely a different job. If you think of if-else more in terms of the else-branch occurring when the if-condition is no longer true (as opposed to 'not executing'), they're a lot more similar in approach than different. -- http://mail.python.org/mailman/listinfo/python-list
Re: sympy returns a dictionary sometimes, and sometimes a list of tuples...why?
Brian Blais wrote:
Hello,
I wrote a very simple script using sympy, and things were working fine,
except for one problem. So I have:
You will probably want to ask on the sympy mailing list:
http://groups.google.com/group/sympy
from sympy import *
x, y = symbols('x','y',real=True)
alpha,beta,gamma=symbols('alpha','beta','gamma',real=True)
alpha_p,beta_p,gamma_p=symbols('alpha_p','beta_p','gamma_p',real=True)
L = symbols('L',real=True)
and then I look at solutions to some equations, like:
solution=solve([beta*y - alpha*(1+y/L) ,
-beta_p*x + alpha_p ], [x, y])
print solution
which prints (correctly):
{x: alpha_p/beta_p, y: L*alpha/(-alpha + L*beta)}
now, if I do:
solution=solve([beta*y - alpha*(1+y/L) - gamma*x*(1+y/L),
-beta_p*x + alpha_p - gamma_p*y], [x, y])
print solution
I get a very long solution, which isn't a problem, but it isn't a
dictionary: I can't tell what is the solution for x and for y. What I
get is:
[(-(alpha*beta_p*abs(gamma)*abs(gamma_p) +
alpha_p*gamma*abs(gamma)*abs(gamma_p) -
L*beta*beta_p*abs(gamma)*abs(gamma_p) -
L*gamma*gamma_p*abs(gamma)*abs(gamma_p) -
gamma*gamma_p*(2*alpha*alpha_p*beta_p*gamma -
2*L*alpha_p*beta*beta_p*gamma + 2*L*alpha*beta_p*gamma*gamma_p +
alpha**2*beta_p**2 + alpha_p**2*gamma**2 + L**2*beta**2*beta_p**2 +
L**2*gamma**2*gamma_p**2 - 2*L*alpha*beta*beta_p**2 +
2*L*alpha_p*gamma_p*gamma**2 +
2*beta*beta_p*gamma*gamma_p*L**2)**(1/2))/(2*beta_p*gamma*abs(gamma)*abs(gamma_p))
+ alpha_p/beta_p, (alpha*beta_p*abs(gamma)*abs(gamma_p) +
alpha_p*gamma*abs(gamma)*abs(gamma_p) -
L*beta*beta_p*abs(gamma)*abs(gamma_p) -
L*gamma*gamma_p*abs(gamma)*abs(gamma_p) -
gamma*gamma_p*(2*alpha*alpha_p*beta_p*gamma -
2*L*alpha_p*beta*beta_p*gamma + 2*L*alpha*beta_p*gamma*gamma_p +
alpha**2*beta_p**2 + alpha_p**2*gamma**2 + L**2*beta**2*beta_p**2 +
L**2*gamma**2*gamma_p**2 - 2*L*alpha*beta*beta_p**2 +
2*L*alpha_p*gamma_p*gamma**2 +
2*beta*beta_p*gamma*gamma_p*L**2)**(1/2))/(2*gamma*gamma_p*abs(gamma)*abs(gamma_p))),
(-(alpha*beta_p*abs(gamma)*abs(gamma_p) +
alpha_p*gamma*abs(gamma)*abs(gamma_p) -
L*beta*beta_p*abs(gamma)*abs(gamma_p) -
L*gamma*gamma_p*abs(gamma)*abs(gamma_p) +
gamma*gamma_p*(2*alpha*alpha_p*beta_p*gamma -
2*L*alpha_p*beta*beta_p*gamma + 2*L*alpha*beta_p*gamma*gamma_p +
alpha**2*beta_p**2 + alpha_p**2*gamma**2 + L**2*beta**2*beta_p**2 +
L**2*gamma**2*gamma_p**2 - 2*L*alpha*beta*beta_p**2 +
2*L*alpha_p*gamma_p*gamma**2 +
2*beta*beta_p*gamma*gamma_p*L**2)**(1/2))/(2*beta_p*gamma*abs(gamma)*abs(gamma_p))
+ alpha_p/beta_p, (alpha*beta_p*abs(gamma)*abs(gamma_p) +
alpha_p*gamma*abs(gamma)*abs(gamma_p) -
L*beta*beta_p*abs(gamma)*abs(gamma_p) -
L*gamma*gamma_p*abs(gamma)*abs(gamma_p) +
gamma*gamma_p*(2*alpha*alpha_p*beta_p*gamma -
2*L*alpha_p*beta*beta_p*gamma + 2*L*alpha*beta_p*gamma*gamma_p +
alpha**2*beta_p**2 + alpha_p**2*gamma**2 + L**2*beta**2*beta_p**2 +
L**2*gamma**2*gamma_p**2 - 2*L*alpha*beta*beta_p**2 +
2*L*alpha_p*gamma_p*gamma**2 +
2*beta*beta_p*gamma*gamma_p*L**2)**(1/2))/(2*gamma*gamma_p*abs(gamma)*abs(gamma_p)))]
which, if you ignore the complexity, is a list of two items, each item
is a tuple of length 2. What does this mean? I can handle the mess of
the solution, but I'd like to know what is a solution for x, and for y.
Why isn't it in a dictionary? Am I doing something wrong?
I suspect that the latter are two possible solutions given as an (x,y) pair.
Possibly, they should be given as a list of dicts. Ask on the sympy mailing list.
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless enigma
that is made terrible by our own mad attempt to interpret it as though it had
an underlying truth.
-- Umberto Eco
--
http://mail.python.org/mailman/listinfo/python-list
Re: ActivePython 3.1.1.2 vs Python 3.1.1 for OSX?
On 1 Oct, 00:51, Robert Hicks sigz...@gmail.com wrote: I am just curious which I should use. I am going to start learning Python soon. Are they comparable and I just do a eenie meenie minie moe? Bob First off, a great choice of language to begin trying! Is it your first language (I'm guessing not), or do you come from another 'background'. Basically, Active is a possible 'superset' of the main distro. of Python. So, for Windows, for instance, it will offer com objects etc... I normally stick with the Python core, then use additional libraries where appropriate. Just my 2p, Jon. -- http://mail.python.org/mailman/listinfo/python-list
Re: ActivePython 3.1.1.2 vs Python 3.1.1 for OSX?
On Sep 30, 9:07 pm, Jon Clements jon...@googlemail.com wrote: On 1 Oct, 00:51, Robert Hicks sigz...@gmail.com wrote: I am just curious which I should use. I am going to start learning Python soon. Are they comparable and I just do a eenie meenie minie moe? Bob First off, a great choice of language to begin trying! Is it your first language (I'm guessing not), or do you come from another 'background'. Basically, Active is a possible 'superset' of the main distro. of Python. So, for Windows, for instance, it will offer com objects etc... I normally stick with the Python core, then use additional libraries where appropriate. Just my 2p, Jon. Yes, I currently do my SA stuff in Perl. We added a product that uses Python (and as a side my son wants to learn Blender) so I thought I might look into it is as well. Thank you for the reply. Bob -- http://mail.python.org/mailman/listinfo/python-list
Re: ActivePython 3.1.1.2 vs Python 3.1.1 for OSX?
On Sep 30, 4:51 pm, Robert Hicks sigz...@gmail.com wrote: I am just curious which I should use. I am going to start learning Python soon. Are they comparable and I just do a eenie meenie minie moe? ActivePython is essentially same as the installers from python.org - but it also comes with additional documentation and tutorials, such as: Python FAQs A snapshot of the Python Enhancement Proposals (PEPs) (For the most recent version, refer to the PEPs on python.org .) Dive Into Python (A tutorial for programmers) Non-Programmers Tutorial For Python http://docs.activestate.com/activepython/3.1/whatsincluded.html Also note that 2.6.x is probably the best bet if you are going to use some 3rd party libraries (after you learn the basics of Python) .. because 3.x does not have many of those libraries ported yet. http://www.activestate.com/activepython/ Further, early next week - a new release of ActivePython-2.6 will be made available that will include, for the first time, a new Python package manager (PyPM) from ActiveState that makes it easier to install packages from pypi.python.org (without having to compile them yourself). This is similar to PPM from ActivePerl. -srid -- http://mail.python.org/mailman/listinfo/python-list
Re: ActivePython 3.1.1.2 vs Python 3.1.1 for OSX?
On Sep 30, 9:28 pm, srid sridhar.ra...@gmail.com wrote: On Sep 30, 4:51 pm, Robert Hicks sigz...@gmail.com wrote: I am just curious which I should use. I am going to start learning Python soon. Are they comparable and I just do a eenie meenie minie moe? ActivePython is essentially same as the installers from python.org - but it also comes with additional documentation and tutorials, such as: Python FAQs A snapshot of the Python Enhancement Proposals (PEPs) (For the most recent version, refer to the PEPs on python.org .) Dive Into Python (A tutorial for programmers) Non-Programmers Tutorial For Python http://docs.activestate.com/activepython/3.1/whatsincluded.html Also note that 2.6.x is probably the best bet if you are going to use some 3rd party libraries (after you learn the basics of Python) .. because 3.x does not have many of those libraries ported yet. http://www.activestate.com/activepython/ Further, early next week - a new release of ActivePython-2.6 will be made available that will include, for the first time, a new Python package manager (PyPM) from ActiveState that makes it easier to install packages from pypi.python.org (without having to compile them yourself). This is similar to PPM from ActivePerl. -srid Thanks! Bob -- http://mail.python.org/mailman/listinfo/python-list
