CherryPy-2.1.0-final released
Hello everyone, I am happy to announce the release of CherryPy-2.1.0 If is the result of 6 months of intense development since the last stable release and the work of a growing number of contributors. CherryPy has become increasingly popular these past few months (the mailing lists now have more than 500 people) and it is also used in other popular products such as Subway and Turbogears. This release is a major step forward for CherryPy. It is packed with new features and bug fixes. Here are the main improvements in this release: - New WSGI interface, which allow CherryPy sites to be deployed on any WSGI server. People are already running it on mod_python, FastCGI, SCGI, IIS or CherryPy's own built-in HTTP server. - New implementation for sessions, which supports multiple backends - Built-in list of convenient filters for things like gzip compression, XHTML validation, caching, unicode decoding/encoding, authentication, XML-RPC wrapper, etc ... These filters can easily be enabled/disabled through configuration. - New development mode which provides things like autoreload (no need to manually restart your server when you make a change), logging of page stats, etc ... - Better handling of file uploads - Internal implementation now uses generators everywhere (no more StringIO) - New built-in HTTP server implementation *** About CherryPy: CherryPy-2 is a pythonic, object-oriented web development framework. Here is a sample Hello, World in CherryPy-2: # import cherrypy # class HelloWorld: # @cherrypy.expose # def index(self): # yield htmlbody # yield Hello world! # yield /body/html # cherrypy.root = HelloWorld() # cherrypy.server.start() Main properties: - this code starts a multi-threaded HTTP server that dispatches requests to methods - requests like http://domain/dir/page?arg1=va l1arg2=val2 are mapped to dir.page(arg1='val1', arg2='val2') - CherryPy also supports RESTful URLs like http://domain/book/science/9 - requests are mapped to an object tree that is mounted on cherrypy.root (for instance: cherrypy.root.user, cherrypy.root.user.remi, ...) - method must be explicitly exposed with a decorator @cherrypy.expose (or index.exposed = True for Python-2.3) Remi. http://www.cherrypy.org -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations.html
Re: IDE recommendation please
SPE is great I suggest you take a look at it http://www.stani.be/python/spe/ [EMAIL PROTECTED] wrote: On the Mac, I think the XCode integration you get with PyObjC is probably best. I know there are plugins for Eclipse but haven't tried any personally, so it's hard to make suggestions (I'm a dinosaur, and I prefer to develop with GVim + a command-line tool, such as Python's own interactive mode...). I'm not sure if BlackAdder (simplest and fastest to learn) and WingIDE (probably THE one most powerful Python IDE) work on the Mac (shame on me, as a Python AND Mac enthusiast, for not having tried them...), but they're surely worth investigating. Ditto for ActiveState's Komodo tool... Alex -- http://mail.python.org/mailman/listinfo/python-list
Test
The message contains Unicode characters and has been sent as a binary attachment. KWF Email scanner was unable to check following file (i.e. corrupted/encrypted zip archive): Name: message.zip Content type: application/octet-stream This file was removed by Firewall. -- http://mail.python.org/mailman/listinfo/python-list
calling a dylib in python on OS X
Hi Is there something similar to python's windll for calling DLLs on win32 but meant for calling dylib's on OS X? thanks, r.s. -- http://mail.python.org/mailman/listinfo/python-list
downloading web images
I'm just wandering if I'm doing this correct way I'm trying to download an image and store it into a file this does the job, but created file does not apear to be an image, it works fine and I can open image, I'm just wandering if there is a better way of doing this. htmlSource=urllib.urlopen(http://www.godandscience.org/images/nebula.jpg;) # Read from the object, storing the page's contents in 's'. s = htmlSource.read() htmlSource.close() myfile = open(myfile.jpg, w) myfile.write(s) myfile.close Thanks -- http://mail.python.org/mailman/listinfo/python-list
Syntax across languages
This post comes from a boring morning, if you are busy ignore this. This post is only for relaxed people. I've found this page, Syntax Across Languages, it contains many errors and omissions, but it's interesting. http://merd.sourceforge.net/pixel/language-study/syntax-across-languages.html Compared to the other languages Python comes out rather well, in quick scan only few things look better in other languages (usually all/most things are possible in all languages, so it's often just a matter of brevity, elegance, etc): - Nestable Pascal-like comments (useful): (* ... *) - Information about the current line and file as Ruby: __LINE__ __FILE__ Instead of the python version: inspect.stack()[0][2] inspect.stack()[0][1] - ~== for approximate FP equality - comparison returns 4 values (i.e. inferior, equal, superior or not comparable), as in Pliant: compare - identity function: identity as in Common Lisp (probably of little use in Python). - Exception retrying: after catching an exception, tell the snippet to be re-run retry as in Ruby - object cloning: obj.copy() obj.deepcopy() - accessing parent method: super as in Ruby, instead as in Python: super(Class, self).meth(args) - recursive flatten as in Ruby (useful) Probably there are some errors of mine too, there are many things I don't know aboyt Python yet. Bye, bearophile -- http://mail.python.org/mailman/listinfo/python-list
Re: IDE recommendation please
Alex Martelli wrote: microsnot [EMAIL PROTECTED] wrote: ... On the Mac, I think the XCode integration you get with PyObjC is probably best. I know there are plugins for Eclipse but haven't tried any personally, so it's hard to make suggestions (I'm a dinosaur, and I prefer to develop with GVim + a command-line tool, such as Python's own interactive mode...). I'm not sure if BlackAdder (simplest and fastest to learn) and WingIDE (probably THE one most powerful Python IDE) work on the Mac (shame on me, as a Python AND Mac enthusiast, for not having tried them...), but they're surely worth investigating. Ditto for ActiveState's Komodo tool... Alex Any suggestions for Linux, specifically SuSE or perhaps Red Hat? Thanks in advance, Kery -- http://mail.python.org/mailman/listinfo/python-list
Re: Syntax across languages
[EMAIL PROTECTED] wrote: - Information about the current line and file as Ruby: __LINE__ __FILE__ Instead of the python version: inspect.stack()[0][2] inspect.stack()[0][1] (that's (mostly) CPython-dependent, and should be avoided) - ~== for approximate FP equality str(a) == str(b) - comparison returns 4 values (i.e. inferior, equal, superior or not comparable), as in Pliant: compare cmp(a, b) -1 cmp(a, a) 0 cmp(b, a) 1 cmp(ä, uä) Traceback (most recent call last): File stdin, line 1, in ? UnicodeDecodeError: 'ascii' codec can't decode byte /.../ sure looks like four possible outcomes. - identity function: identity as in Common Lisp (probably of little use in Python). id(a) - Exception retrying: after catching an exception, tell the snippet to be re-run retry as in Ruby x = 0 while 1: ... try: ... x += 1 ... if x = 5: ... raise ValueError ... except ValueError: ... print retry ... continue ... else: ... break ... retry retry retry retry retry - object cloning: obj.copy() obj.deepcopy() import copy (cloning is usually a sign of a design problem in python. if you think you need it, you probably don't. if you really think you need it, import copy.) - recursive flatten as in Ruby (useful) if you can define the semantics, it's a few lines of code. if you're not sure about the semantics, a built-in won't help you... etc. /F -- http://mail.python.org/mailman/listinfo/python-list
Re: Syntax across languages
Thank you for the comments, Fredrik Lundh. (that's (mostly) CPython-dependent, and should be avoided) Then a non CPython-dependent way of doing it can be even more useful. sure looks like four possible outcomes. Right (but to me four explicit answers seem better than three answers and an exception still). id(a) I think in Python it can be something more like (but it's of little use): def identity(x): return x Or: identity = lambda x: x (cloning is usually a sign of a design problem in python. if you think you need it, you probably don't. if you really think you need it, import copy.) I agree (importing a module is worse than using a standard copy method, but I think this can be seen as a way to discourage the use of copy in Python). if you can define the semantics, it's a few lines of code. if you're not sure about the semantics, a built-in won't help you... I think the language needs a fast built-in version of it. If something is both inside Mathematica and Ruby, then probably it can be useful in Python too :-) Bye and thank you, bearophile -- http://mail.python.org/mailman/listinfo/python-list
Re: downloading web images
On Sun, 23 Oct 2005 06:52:26 +, Joe wrote: I'm just wandering if I'm doing this correct way I'm trying to download an image and store it into a file this does the job, but created file does not apear to be an image, it works fine and I can open image, I'm just wandering if there is a better way of doing this. What do you mean that the file does not appear to be an image? If it works fine and you can open the image, then what is the problem? -- Steven. -- http://mail.python.org/mailman/listinfo/python-list
Re: Syntax across languages
[EMAIL PROTECTED] wrote:
if you can define the semantics, it's a few lines of code. if you're not
sure about the semantics, a built-in won't help you...
I think the language needs a fast built-in version of it. If something
is both inside Mathematica and Ruby, then probably it can be useful in
Python too :-)
numpy already has one:
http://numeric.scipy.org/numpydoc/numpy-9.html#pgfId-36512
(it's probably there in scipy too, but the scipy docs don't appear to be
freely available. hmm...)
PIL also has one:
http://www.effbot.org/imagingbook/image.htm#image-getdata-method
there's also one in Tkinter:
import Tkinter
Tkinter._flatten([abc, 1, 2, (3, 4, 5), None, [6, 7, 8, (9,)]])
('abc', 1, 2, 3, 4, 5, 6, 7, 8, 9)
to create a generic version, you have to decide which sequences to
treat like sequences, and which sequences you don't want to treat
like sequences...
/F
--
http://mail.python.org/mailman/listinfo/python-list
Re: Microsoft Hatred FAQ
In comp.lang.perl.misc David Schwartz [EMAIL PROTECTED] wrote: Mike Meyer [EMAIL PROTECTED] wrote in message Sorry, but nobody but the government actually owns property. In most places, you can't make non-trivial changes to your property without permission from the government. They even charge you rent on your property, only they call it property tax. I see you are a totalitarianist or perhaps a communist. If you want to live in America and discuss things that are relevent to America, let me know. Why would you say that - Mike Meyer made a point to which you have obviously no answer. Or do you deny that his comments on this matter of property are true? Axel -- http://mail.python.org/mailman/listinfo/python-list
execution order in list/generator expression
Hi, I am wondering how this is evaluated. a=(x for x in [1,2,3,4]) p=[4,5] c=[x for x in p if x in list(a)] c is [] but if I expand a first, like a = list(a) c is [4] So it seems that the if part don't get expanded ? -- http://mail.python.org/mailman/listinfo/python-list
Re: execution order in list/generator expression
[EMAIL PROTECTED] wrote: Hi, I am wondering how this is evaluated. a=(x for x in [1,2,3,4]) p=[4,5] c=[x for x in p if x in list(a)] c is [] No it isn't. In [1]: a=(x for x in [1,2,3,4]) In [2]: p=[4,5] In [3]: c=[x for x in p if x in list(a)] In [4]: c Out[4]: [4] I'm willing to bet that you used up the 'a' iterator before you ran that list comprehension, though. In [5]: c=[x for x in p if x in list(a)] In [6]: c Out[6]: [] Note that x in list(a) gets executed on each iteration, but the iterator is used up on the first time. In [7]: a=(x for x in [1,2,3,4]) In [8]: p = [4, 5, 2, 3] In [9]: c=[x for x in p if x in list(a)] In [10]: c Out[10]: [4] -- Robert Kern [EMAIL PROTECTED] In the fields of hell where the grass grows high Are the graves of dreams allowed to die. -- Richard Harter -- http://mail.python.org/mailman/listinfo/python-list
Re: execution order in list/generator expression
[EMAIL PROTECTED] wrote: Hi, I am wondering how this is evaluated. a=(x for x in [1,2,3,4]) p=[4,5] c=[x for x in p if x in list(a)] c is [] but if I expand a first, like a = list(a) c is [4] So it seems that the if part don't get expanded ? Well, for every element in p it recalculates list(a). Since the generator is exhausted after making a list from it, it gives you nothing afterwards. So after it checks the first element, it's equivalent to [x for x in p if x in []]. -- http://mail.python.org/mailman/listinfo/python-list
Re: execution order in list/generator expression
Ah, no wonder. I test with p=[5,4]. thanks. so basically, I still need to expand it first given this behaviour. Robert Kern wrote: [EMAIL PROTECTED] wrote: Hi, I am wondering how this is evaluated. a=(x for x in [1,2,3,4]) p=[4,5] c=[x for x in p if x in list(a)] c is [] No it isn't. In [1]: a=(x for x in [1,2,3,4]) In [2]: p=[4,5] In [3]: c=[x for x in p if x in list(a)] In [4]: c Out[4]: [4] I'm willing to bet that you used up the 'a' iterator before you ran that list comprehension, though. In [5]: c=[x for x in p if x in list(a)] In [6]: c Out[6]: [] Note that x in list(a) gets executed on each iteration, but the iterator is used up on the first time. In [7]: a=(x for x in [1,2,3,4]) In [8]: p = [4, 5, 2, 3] In [9]: c=[x for x in p if x in list(a)] In [10]: c Out[10]: [4] -- Robert Kern [EMAIL PROTECTED] In the fields of hell where the grass grows high Are the graves of dreams allowed to die. -- Richard Harter -- http://mail.python.org/mailman/listinfo/python-list
Re: Syntax across languages
[EMAIL PROTECTED] wrote: sure looks like four possible outcomes. Right (but to me four explicit answers seem better than three answers and an exception still). def cmp4(a, b): try: return cmp(a, b) except: return None /F -- http://mail.python.org/mailman/listinfo/python-list
Re: Syntax across languages
Thank you Fredrik Lundh for showing everybody that indeed lot of people feel the need of such function in Python too. to create a generic version, you have to decide which sequences to treat like sequences In my version I give the function some parameter(s) to define what I want to flatten. I'll probably put it in the cookbook... Bye, Bearophile -- http://mail.python.org/mailman/listinfo/python-list
Re: best way to replace first word in string?
On Sun, 23 Oct 2005 01:30:36 -0400, Mike Meyer wrote: At least, that's what it looks like to me -- I'm perplexed by the *vast* increase in speed in your version, far more than I would have predicted from pulling out the char conversion. I can think of three possibilities: Everything got faster, so it wasn't just pulling the chr conversion. Sure -- I'm not concerned about proportional speed increases. (1) Your PC is *hugely* faster than mine; It's a 3Ghz P4. Perhaps a tad faster, but not too much. (2) Your value of x is a lot smaller than I was using (you don't actually say what x you use); or It's still in the buffer, and I copied it from your timings: x = 10 (3) You are using a version and/or implementation of Python that has a different underlying implementation of string concatenation. I'm runing Python 2.4.1 built with GCC 3.4.2. There is a difference there: http://www.python.org/doc/2.4/whatsnew/node12.html Second-last paragraph: [quote] String concatenations in statements of the form s = s + abc and s += abc are now performed more efficiently in certain circumstances. This optimization won't be present in other Python implementations such as Jython, so you shouldn't rely on it; using the join() method of strings is still recommended when you want to efficiently glue a large number of strings together. (Contributed by Armin Rigo.) [end quote] -- Steven. -- http://mail.python.org/mailman/listinfo/python-list
Re: IDE recommendation please
microsnot wrote: I'm new to Python but am wondering what IDE Python developers use? I use Mac OS X 10.4.2. I have PythonIDE which comes with MacPython but I don't think that has even rudimentary intellisense. Xcode and Eclipse don't seem to support Python out of the box. Suggestions for plugins for Eclipse would also be nice. I use wingIDE and as Alex said before is the best python IDE ever... cheers -- Gian Mario Tagliaretti PyGTK GUI programming http://www.parafernalia.org/pygtk/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Syntax across languages
[EMAIL PROTECTED] wrote: Thank you Fredrik Lundh for showing everybody that indeed lot of people feel the need of such function in Python too. you seem to be missing the point: all those versions are highly optimized, and tuned for the specific use-cases. a generic flatten would be useless in all three cases. /F -- http://mail.python.org/mailman/listinfo/python-list
Re: IDE recommendation please
Dnia 23 Oct 2005 00:33:41 -0700, kery napisał(a): Any suggestions for Linux, specifically SuSE or perhaps Red Hat? Eric3 http://www.die-offenbachs.de/detlev/eric3.html Eclipse http://www.eclipse.org/ + pydev plugin http://pydev.sourceforge.net/ SPE http://pythonide.stani.be/ -- JZ -- http://mail.python.org/mailman/listinfo/python-list
Re: IDE recommendation please
Dnia Sun, 23 Oct 2005 14:54:38 +1000, microsnot napisał(a): Eclipse don't seem to support Python out of the box. It is very easy to add excelent python plugin http://pydev.sourceforge.net/ Fast install: just go to the update manager (inside the help menu) and add update site: http://pydev.sf.net/updates/ (eclipse should do the rest) An alternative is just getting the zip file and extracting it yourself in eclipse. If you choose to do it, just make sure the plugins folder is extracted on top of the eclipse plugins folder. -- JZ -- http://mail.python.org/mailman/listinfo/python-list
Re: System tray Icon
Mike Pippin wrote: How would I have an app run with just a system tray Icon??? any help would be greatly appreciated. I have no clue where to start. Choose a GUI toolkit, e.g. wxPython. -- http://mail.python.org/mailman/listinfo/python-list
os.system, IIS6.0
Hi there Since we migrated from Windows 2000 Server to Windows 2003 Server, we encountered some problems with the Python scripts calling os.system(). They either copy files (permissions on files properly set) or run local programs. While using Win 2K, everything was alright. I assume, it's caused by stronger security settings for the IUSR-Account (the programs do their work if they are run from the command prompt by the system administrator). Does anybody know how to change the permissions of the IUSR account to allow the execution of system commands or external programs? Or is it another issue which creates these problems? Some system details: - Windows 2003 Web Edition - IIS 6.0 - Python 1.5.2 (has to be this outdated version because of pyd files which depend on Python15.dll) Thanks dave -- http://mail.python.org/mailman/listinfo/python-list
Re: Python vs Ruby
Mike Meyer wrote: There were studies done in the 70s that showed that programmers produced the same number of debugged lines of code a day no matter what language they used. So a language that lets you build the same program with fewer lines of code will let you build the program in less time. In my experience the LOC count is *far* less significant than the levels of indirections. Eg. how many levels of abstraction do I have to understand to follow a traceback, or to understand what a method relly does in a complex system. -- hilsen/regards Max M, Denmark http://www.mxm.dk/ IT's Mad Science -- http://mail.python.org/mailman/listinfo/python-list
Re: System tray Icon
Questo non e' sufficiente, ma puo' essere un punto di partenza: http://www.pycode.com/modules/?id=2tab=download Bearophile -- http://mail.python.org/mailman/listinfo/python-list
Problem with subprocess.call and cp
Hallöchen! The following code from subprocess import call call(['cp', 'subdir/*.jpg', 'othersubdir/']) yields cp: call of stat for subdir/*.jpg not possible: File or directory not found (This may not be the real error message since it's back-translated from German.) I could use shell=True, however, what's going wrong here? Tschö, Torsten. -- Torsten Bronger, aquisgrana, europa vetusICQ 264-296-646 -- http://mail.python.org/mailman/listinfo/python-list
Re: Problem with subprocess.call and cp
Torsten Bronger wrote: The following code from subprocess import call call(['cp', 'subdir/*.jpg', 'othersubdir/']) yields cp: call of stat for subdir/*.jpg not possible: File or directory not found (This may not be the real error message since it's back-translated from German.) I could use shell=True, however, what's going wrong here? under Unix, it's the shell that expands glob patterns. individual commands usually don't know anything about such patterns. so if you run the cp command directly, it will look for a single file named subdir/*.jpg. if you run it via the shell, it will get a list of matching files from the shell. here's a corresponding pure-python solution, btw: import glob, shutil for file in glob.glob(subdir/*.jpg): shutil.copy(file, othersubdir) /F -- http://mail.python.org/mailman/listinfo/python-list
Re: Listening for keypress in the background
Mathias Dahl wrote: Peter Hansen [EMAIL PROTECTED] writes: How can I make it listen for a certain keypress (say, Windows-key + space) in a controlled fashion even when it is not the program having focus? I need to do this running under GNOME in Mandrake GN/Linux 10. Search Google for python keylogger. Thanks, good idea! The relevant pages I found only link to Windows-specific keyloggers though. Oops, you're quite right. Sorry! I didn't even read the second sentence in your post. Stupid me... -Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: C replacement for Queue module
Jason Lai wrote: As far as Queues go, the adding/popping is apparently done with deque which are implemented in C. The Queue class pretty much just provides blocking operations and is otherwise a very thin layer around deque. As far as primitives go, only threading.Lock is written in C and the others are pure Python, so they're not that fast, which might be a reason for Queue's slowness. BTW, I didn't mean (or expect) that one could improve significantly on Queue's performance in general just by re-writing it. I meant that if the OP took into account _his own unique situation_, he might see opportunities for improvement which Queue couldn't possibly provide, given that it's a general purpose tool. If his own situation simply involves a massive number of discrete put/get operations which cannot be bundled in any fashion, rewriting the entire Queue in C just to avoid the Python method calls (which have high setup overhead) might be the only real option. -Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: Microsoft Hatred FAQ
[EMAIL PROTECTED] wrote... In comp.lang.perl.misc David Schwartz [EMAIL PROTECTED] wrote: Mike Meyer [EMAIL PROTECTED] wrote in message Sorry, but nobody but the government actually owns property. In most places, you can't make non-trivial changes to your property without permission from the government. They even charge you rent on your property, only they call it property tax. I see you are a totalitarianist or perhaps a communist. If you want to live in America and discuss things that are relevent to America, let me know. Why would you say that - Mike Meyer made a point to which you have obviously no answer. Or do you deny that his comments on this matter of property are true? Methinks David simply missed that Mike was being facetious. (Irony and facetiousness don't translate well into print, as Frank Zappa once noted.) -- http://mail.python.org/mailman/listinfo/python-list
Re: Missing modules '_ssl', 'ext.IsDOMString', 'ext.SplitQName'
[EMAIL PROTECTED] wrote: i get the following error message when i use py2exe on my application: The following modules appear to be missing ['_ssl', 'ext.IsDOMString', 'ext.SplitQName'] I've installed PyXML-0.8.4.win32-py2.4.exe. My version of python is 2.4 I've checked in the pyxml directories and these modules are not there. Anybody have an idea what I'm doing wrong? Maybe nothing. Often py2exe will complain about modules which are not actually required by the application. If your code runs and you've tested all areas of it, then you can chalk the above up to a py2exe feature. -Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: Microsoft Hatred FAQ
[EMAIL PROTECTED] wrote... [EMAIL PROTECTED] wrote... In comp.lang.perl.misc David Schwartz [EMAIL PROTECTED] wrote: Mike Meyer [EMAIL PROTECTED] wrote in message Sorry, but nobody but the government actually owns property. In most places, you can't make non-trivial changes to your property without permission from the government. They even charge you rent on your property, only they call it property tax. I see you are a totalitarianist or perhaps a communist. If you want to live in America and discuss things that are relevent to America, let me know. Why would you say that - Mike Meyer made a point to which you have obviously no answer. Or do you deny that his comments on this matter of property are true? Methinks David simply missed that Mike was being facetious. (Irony and facetiousness don't translate well into print, as Frank Zappa once noted.) Uh, you _were_ being facetious there, weren't you Mike? -- http://mail.python.org/mailman/listinfo/python-list
Re: wxpython - passing arg to wx.app OnInit
Stuart McGraw wrote: I have a wxPython app, conventionally structured with a Application class derived from wx.App. My problem is that the app accepts a command line argument that must be acted upon within the OnInit() method of the Application class. How do I pass it cleanly from main() into app.OnInit()? In the simplified example below, dbfn is the piece of info that is in main() that OnInit() needs to use. Is a global variable is the only way? :-( There are various ways, but the simplest is to accept that sys.argv is *already* a global and just to access it directly from the Application's OnInit() method. This wiki page demonstrates: http://wiki.wxpython.org/index.cgi/UsingCommandLineArguments -Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: Syntax across languages
id(blub)
-1210548288
This is not identity in a mathematical view.
def identity(x): return x
It has is uses. I had some kind of parser and had a dict like this:
{case: function, ...} It had to be a dict, because i wanted to
dynamically add and remove cases. In some cases nothing had to be done.
To represent this in the dict a identity function is needed. There
surely are other ways, but identity was the most expressive in my eyes.
Nice read, by the way. Thanks for sharing ;)
--
http://mail.python.org/mailman/listinfo/python-list
Re: IDE recommendation please
Mac users of SPE collected money for me to buy a Mac. This means that in the near future SPE will be especially improved for Mac. So feedback from Mac users is more than welcome and will probably be taken into account. SPE is a free, open source IDE with a lot of features like a debugger, UML diagrams and a GUI designer. Stani -- http://pythonide.stani.be http://pythonide.stani.be/manual/html/manual.html -- http://mail.python.org/mailman/listinfo/python-list
Re: Syntax across languages
just curious, how can this identity function be used ? In haskell,
because all functions are curried, I can sort of visualize/understand
how id is used. Not quite understand how it can be used in python.
beza1e1 wrote:
id(blub)
-1210548288
This is not identity in a mathematical view.
def identity(x): return x
It has is uses. I had some kind of parser and had a dict like this:
{case: function, ...} It had to be a dict, because i wanted to
dynamically add and remove cases. In some cases nothing had to be done.
To represent this in the dict a identity function is needed. There
surely are other ways, but identity was the most expressive in my eyes.
Nice read, by the way. Thanks for sharing ;)
--
http://mail.python.org/mailman/listinfo/python-list
Re: Syntax across languages
beza1e1 wrote:
It has is uses. I had some kind of parser and had a dict like this:
{case: function, ...} It had to be a dict, because i wanted to
dynamically add and remove cases. In some cases nothing had to be done.
To represent this in the dict a identity function is needed.
in Python, that's spelled lambda x: x (or None, in some contexts)
/F
--
http://mail.python.org/mailman/listinfo/python-list
Re: Microsoft Hatred FAQ
In [EMAIL PROTECTED], on 10/18/2005 at 01:21 PM, [EMAIL PROTECTED] said: Yes, he deserves credit for what he did. As well as blame. The commercialization of the Internet was grossly mismanaged. Take the InterNIC - please! -- Shmuel (Seymour J.) Metz, SysProg and JOAT http://patriot.net/~shmuel Unsolicited bulk E-mail subject to legal action. I reserve the right to publicly post or ridicule any abusive E-mail. Reply to domain Patriot dot net user shmuel+news to contact me. Do not reply to [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
Re: Syntax across languages
Fredrik Lundh [EMAIL PROTECTED] wrote: - comparison returns 4 values (i.e. inferior, equal, superior or not comparable), as in Pliant: compare cmp(a, b) -1 cmp(a, a) 0 cmp(b, a) 1 cmp(ä, uä) Traceback (most recent call last): File stdin, line 1, in ? UnicodeDecodeError: 'ascii' codec can't decode byte /.../ that is not because of the comparison, but because of the coercion: 'ä'+u'ä' Traceback (most recent call last): File stdin, line 1, in ? UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 0: ordinal not in range(128) sure looks like four possible outcomes. cmp(1, 1+2j) Traceback (most recent call last): File stdin, line 1, in ? TypeError: cannot compare complex numbers using , =, , = a fifth one :-) -- --- | Radovan Garabík http://kassiopeia.juls.savba.sk/~garabik/ | | __..--^^^--..__garabik @ kassiopeia.juls.savba.sk | --- Antivirus alert: file .signature infected by signature virus. Hi! I'm a signature virus! Copy me into your signature file to help me spread! -- http://mail.python.org/mailman/listinfo/python-list
How to separate directory list and file list?
With glob.glob(*) or os.listdir(cwd) I can get a combined file list with directory list, but I just wanna a bare file list, no directory list. How to get it? Tons of thanks in advance! Gonnasi -- http://mail.python.org/mailman/listinfo/python-list
Re: How to separate directory list and file list?
Hi, 2005/10/23, Gonnasi [EMAIL PROTECTED]: With glob.glob(*) or os.listdir(cwd) I can get a combined file list with directory list, but I just wanna a bare file list, no directory list. How to get it? don't know if it is the best solution, but it looks nice. :) path = /home/test files = [fn for fn in os.listdir(path) if os.path.isfile(os.path.join(path, fn))] This gives you just the list of files in a given directory. Best regards, Oliver -- Oliver Andrich [EMAIL PROTECTED] --- http://roughbook.de/ -- http://mail.python.org/mailman/listinfo/python-list
Re: How to separate directory list and file list?
Gonnasi wrote: With glob.glob(*) or os.listdir(cwd) I can get a combined file list with directory list, but I just wanna a bare file list, no directory list. How to get it? use os.path.isfile on the result. for file in glob.glob(*): if not os.path.isfile(file): continue ... deal with file ... for file in os.listdir(cwd): file = os.path.join(cwd, file) if not os.path.isfile(file): continue ... deal with file ... files = map(os.path.isfile, glob.glob(*)) files = (file for file in os.listdir(cwd) if os.path.isfile(os.path.join(cwd, file))) etc. /F -- http://mail.python.org/mailman/listinfo/python-list
ANN: CherryPy-2.1.0-final released
Hello everyone, I am happy to announce the release of CherryPy-2.1.0 If is the result of 6 months of intense development since the last stable release and the work of a growing number of contributors. CherryPy has become increasingly popular these past few months (the mailing lists now have more than 500 people) and it is also used in other popular products such as Subway and Turbogears. This release is a major step forward for CherryPy. It is packed with new features and bug fixes. Here are the main improvements in this release: - New WSGI interface, which allow CherryPy sites to be deployed on any WSGI server. People are already running it on mod_python, FastCGI, SCGI, IIS or CherryPy's own built-in HTTP server. - New implementation for sessions, which supports multiple backends - Built-in list of convenient filters for things like gzip compression, XHTML validation, caching, unicode decoding/encoding, authentication, XML-RPC wrapper, etc ... These filters can easily be enabled/disabled through configuration. - New development mode which provides things like autoreload (no need to manually restart your server when you make a change), logging of page stats, etc ... - Better handling of file uploads - Internal implementation now uses generators everywhere (no more StringIO) - New built-in HTTP server implementation *** About CherryPy: CherryPy-2 is a pythonic, object-oriented web development framework. Here is a sample Hello, World in CherryPy-2: # import cherrypy # class HelloWorld: # @cherrypy.expose # def index(self): # yield htmlbody # yield Hello world! # yield /body/html # cherrypy.root = HelloWorld() # cherrypy.server.start() Main properties: - this code starts a multi-threaded HTTP server that dispatches requests to methods - requests like http://domain/dir/page?arg1=va l1arg2=val2 are mapped to dir.page(arg1='val1', arg2='val2') - CherryPy also supports RESTful URLs like http://domain/book/science/9 - requests are mapped to an object tree that is mounted on cherrypy.root (for instance: cherrypy.root.user, cherrypy.root.user.remi, ...) - method must be explicitly exposed with a decorator @cherrypy.expose (or index.exposed = True for Python-2.3) Remi. http://www.cherrypy.org -- http://mail.python.org/mailman/listinfo/python-list
Re: High Order Messages in Python
[EMAIL PROTECTED] wrote:
I'm reading about high order messages in Ruby by Nat Pryce, and
thinking if it could be util and if so, if it could be done in Python.
Nice sunday afternoon exercise. Yes, you can do this in python. This is
based on a relatively naive translation of the ruby version:
class HigherOrderMessage(object):
def __init__(self,handler):
self.handler = handler
class Do(HigherOrderMessage):
def __HOM__(self, methname, *args):
implement ruby's method_missing idea
try:
for e in self.handler:
meth = getattr(e, methname)
meth(*args)
except TypeError: # Handle non-iterator, could be nicer
if self.handler is not None:
meth = getattr(self.handler, methname)
meth(*args)
def __getattribute__(self, methname):
try:
return super(Do,self).__getattribute__(methname)
except AttributeError:
def myHom(*args):
return self.__HOM__(methname, *args)
return myHom
class Where(HigherOrderMessage):
def __HOM__(self, methname, *args):
implement ruby's method_missing idea
try:
r = List()
for e in self.handler:
meth = getattr(e, methname)
if meth(*args):
r.append(e)
return r
except TypeError:
r = List()
if self.handler is not None:
meth = getattr(self.handler, methname)
if meth(*args):
r.append(self.handler)
return r
#
def __getattribute__(self, methname):
Probably belongs in the baseclass
try:
return super(Where,self).__getattribute__(methname)
except AttributeError:
def myHom(*args):
return self.__HOM__(methname, *args)
return myHom
class enumerable(object):
def do(self):return Do(self)
def where(self): return Where(self)
class List(enumerable,list):
List using enumerable as a mixin
class Claimant(enumerable):
def __init__(self, name, age, gender):
self.name = name
self.age = age
self.gender = gender
self.benefits = 0
def retired(self):
return (self.gender == male and self.age = 65) or \
(self.gender == female and self.age = 60)
def receive_benefit(self,amount):
self.benefits = self.benefits + amount
def __str__(self):
return %s,%s age: %s benefits: %s % (
self.name,
self.gender,
str(self.age),
str(self.benefits)
)
#
# Create an enumerable list capable of responding to
#
claimants = List([ # Just a list which is enumerable as well
Claimant(tom, 32, male),
Claimant(dick, 64, male),
Claimant(harry, 128, male),
Claimant(Ivanova, 32, female),
Claimant(Kochansky, 64, female),
Claimant(Sung, 128, female),
])
# First the normal python way I prefer this)
for claimant in claimants:
if claimant.retired():
claimant.receive_benefit(50)
# Display the results
for claimant in claimants: print str(claimant)
print
# The more direct translation of :
# claimants.select {|e| e.retired?}.each {|e| e.receive_benefit 50}
[ e.receive_benefit(50) for e in claimants if e.retired() ]
# Display the results
for claimant in claimants: print str(claimant)
print
# The single claimant version of the higher order message approach
# re-uses the last claimant from above. This one unconditionally
# grants benefits.
#
claimant.do().receive_benefit(50)
print claimant
print
# Iterating over a bunch of Claimants with the higher order message
# approach. This conditionally updates the claimaints
claimants.where().retired().do().receive_benefit(50)
# display results
for claimant in claimants: print str(claimant)
I'm not convinced I'd actually *use* this approach(*), but it does show that
you can certainly take this approach in python. It's certainly interesting
though.
(*) Largely because there's a bunch of magic happening as far as the user
(next programmer to edit the file) is concerned. After all you can't
find the definition of retried in where or claimant; you can't
find the definition of receive_benefit in do, retired, where
or claimants.
I'm also pretty sure there's other things you'd want to do more than the
above generally speaking if you wanted to handle inheritance/etc nicely.
(That does make me wonder as well if you'd need to do more in ruby as
well)
However, this certainly isn't a case of ruby can do this, and python
can't, because clearly python CAN do it :-)
Regards,
Michael
--
http://mail.python.org/mailman/listinfo/python-list
bsddb version?
Anybody knows which version bsddb is released with py2.3 and py2.4? Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: How to separate directory list and file list?
Gonnasi wrote:
With
glob.glob(*)
or
os.listdir(cwd)
I can get a combined file list with directory list, but I just wanna a
bare file list, no directory list. How to get it?
Using Jason Orendorff's path module, it's just this:
from path import path
path('.').files() # returns list of files in current dir
-Peter
--
http://mail.python.org/mailman/listinfo/python-list
Re: bsddb version?
leasun wrote: Anybody knows which version bsddb is released with py2.3 and py2.4? Is this what you wanted? Python 2.4.1 (#65, Mar 30 2005, 09:13:57) [MSC v.1310 32 bit (Intel)] on win32 import bsddb bsddb.__version__ '4.3.0' I'll leave it up to you to do the work to find out what it is on Python2.3... I hope you can manage the effort. ;-) -Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: How to separate directory list and file list?
Gonnasi [EMAIL PROTECTED] wrote:
With
glob.glob(*)
or
os.listdir(cwd)
I can get a combined file list with directory list, but I just wanna a
bare file list, no directory list. How to get it?
Tons of thanks in advance!
Gonnasi
Using the path module (http://www.jorendorff.com/articles/python/path/):
from path import path
path('.').files()
George
--
http://mail.python.org/mailman/listinfo/python-list
Re: Python vs Ruby
Mike Meyer [EMAIL PROTECTED] wrote:
...
Of course, these results only apply where the complexity (e.g., number
of operators, for example) in a single line of code is constant.
I'm not sure what you're trying to say here. The tests ranged over
things from PL/I to assembler. Are you saying that those two languages
have the same complexity in a single line?
Not necessarily, since PL/I, for example, is quite capable of usages at
extremes of operator density per line. So, it doesn't even have the
same complexity as itself, if used in widely different layout styles.
If the studies imply otherwise, then I'm reminded of the fact that both
Galileo and Newton published alleged experimental data which can be
shown to be too good to be true (fits the theories too well, according
to chi-square tests etc)...
for item in sequence: blaap(item)
or
for item in sequence:
blaap(item)
are EXACTLY as easy (or hard) to write, maintain, and document -- it's
totally irrelevant that the number of lines of code has doubled in the
second (more standard) layout of the code!-)
The studies didn't deal with maintenance. They only dealt with
documentation in so far as code was commented.
On the other hand, studies of reading comprehension have shown that
people can read and comprehend faster if the line lengths fall within
certain ranges. While it's a stretch to assume those studies apply to
code, I'd personally be hesitant to assume they don't apply without
some reseach. If they do apply, then your claims about the difficulty
of maintaining and documenting being independent of the textual line
lengths are wrong. And since writing code inevitable involves
debugging it - and the studies specified debugged lines - then the
line length could affect how hard the code is to write as well.
If time to code depends on textual line lengths, then it cannot solely
depend on number of lines at the same time. If, as you say, the studies
prove that speed of delivering debugged code depends strictly on the
LOCs in the delivered code, then those studies would also be showing
that the textual length of the lines is irrelevant to that speed (since,
depending on coding styles, in most languages one can trade off
textually longer lines for fewer lines).
OTOH, the following mental experiment shows that the purported
deterministic connection of coding time to LOC can't really hold:
say that two programmers, Able and Baker, are given exactly the same
task to accomplish in (say) language C, and end up with exactly the same
correct source code for the resulting function;
Baker, being a honest toiling artisan, codes and debugs his code in
expansive style, with lots of line breaks (as lots of programming
shops practice), so, given the final code looks like:
while (foo())
{
bar();
baz();
}
(etc), he's coding 5 lines for each such loop;
Able, being able, codes and debugs extremely crammed code, so the same
final code looks, when Able is working on it, like:
while (foo()) { bar(); baz(); }
so, Able is coding 1 line for each such loop, 5 times less than Baker
(thus, by hypothesis, Able must be done 5 times faster);
when Able's done coding and debugging, he runs a code beautifier
utility which runs in negligible time (compared to the time it takes to
code and debug the program) and easily produces the same expansively
laid-out code as Baker worked with all the time.
So, Able is 5 times faster than Baker yet delivers identical final code,
based, please note, not on any substantial difference in skill, but
strictly on a trivial trick hinging on a popular and widely used kind of
code-reformatting utility.
Real-life observation suggests that working with extremely crammed code
(to minimize number of lines) and beautifying it at the end is in fact
not a sensible coding strategy and cannot deliver such huge increases in
coding (and debugging) speed. Thus, either those studies or your
reading of them must be fatally flawed in this respect (most likely,
some putting hands forward footnote about coding styles and tools in
use was omitted from the summaries, or neglected in the reading).
Such misunderstandings have seriously damaged the practice of
programming (and managements of programming) in the past. For example,
shops evaluating coders' productivity in terms of lines of code have
convinced their coders to distort their style to emit more lines of code
in order to be measured as more productive -- it's generally trivial to
do so, of course, in many cases, e.g.
for i in range(100):
a[i] = i*i
can easily become 100 lines a[0] = 0 and so on (easily produced by
copy and paste or editor macros, or other similarly trivial means). At
the other extreme, some coders (particularly in languages suitable for
extreme density, such as Perl) delight in producing one-liner
(unreadable) ``very clever'' equivalents of straightforward loops that
would take up a few lines if
Re: How to separate directory list and file list?
Gonnasi [EMAIL PROTECTED] wrote:
With
glob.glob(*)
or
os.listdir(cwd)
I can get a combined file list with directory list, but I just wanna a
bare file list, no directory list. How to get it?
I see everybody's suggesting os.path.* solutions, and they're fine, but
an interesting alternative is os.walk:
__, thedirs, thefiles = os.walk('.').next()
thefiles is the list of filenames (and thedirs is the list of directory
names), and each is sorted alphabetically. (I'm assigning to '__' the
absolute path of the current directory, meaning I intend to ignore it).
An expression that just provides the filename list is
os.walk('.').next()[2]
although this may be a tad too obscure to recommend it!-)
Alex
--
http://mail.python.org/mailman/listinfo/python-list
Re: Syntax across languages
[EMAIL PROTECTED] wrote: ... - Information about the current line and file as Ruby: __LINE__ __FILE__ Instead of the python version: inspect.stack()[0][2] inspect.stack()[0][1] __file__ is around in Python, too, but there's no __line__ (directly). - identity function: identity as in Common Lisp (probably of little use in Python). I've seen enough occurrences of lambda x: x in Python code with a generally functional style that I'd love to have operator.identity (and a few more trivial functions like that) for readability;-) - object cloning: obj.copy() obj.deepcopy() Like (say) container.length() versus len(container), I'm perfectly comfortable relying on functions rather than methods. It even makes it easier to allow several alternative ways for an object to provide such functionality (e.g. by implementing __getstate__ and maybe __setstate__ as opposed to __copy__ and maybe __deepcopy__) -- which would be feasible even with a method, of course (Template Method DP), but IS easier when relying on functions (and operators). - accessing parent method: super as in Ruby, instead as in Python: super(Class, self).meth(args) Ruby's syntax may be better for a single-inheritance language, but Python's, while less elegant, may be more appropriate in the presence of multiple inheritance. - recursive flatten as in Ruby (useful) Usage too rare to deserve a built-in method, IMHO, considering the ease of coding the equivalent: def flatten(x): if not isinstance(x, list): yield x for y in x: yield flatten(y) What I _do_ envy Ruby's syntax, a little, is the convention of ending methodnames with exclamation mark to indicate modifies in-place (and, secondarily, question mark to indicate predicates). The distinction between, e.g., y = x.sort() and x.sort!() in Ruby is much clearer, IMHO, than that between, say, y = sorted(x) and x.sort() in Python... Alex -- http://mail.python.org/mailman/listinfo/python-list
Re: Syntax across languages
[EMAIL PROTECTED] [EMAIL PROTECTED] wrote: just curious, how can this identity function be used ? In haskell, because all functions are curried, I can sort of visualize/understand how id is used. Not quite understand how it can be used in python. There was a very recent example posted to this group (by Robin Becker, I believe, looking for ways to override property), something like: def __init__(self, validate=None): if not validate: validate = lambda x: x self.validate = validate and later on, self.validate is always unconditionally called to extract a valid value from an input argument to another method -- a nicer style, arguably, than assigning self.validate unconditionally and then having to test each and every time in the other method. Such subcases of the well-known Null Object design pattern, where you don't want to store None to mean no such object but, to avoid repeated testing, rather want to store an object which reliably does nothing, are reasonably common. In an abstract way, they're somewhat akin to having the 'pass' statement in the language itself;-). Alex -- http://mail.python.org/mailman/listinfo/python-list
Re: Syntax across languages
Alex I've seen enough occurrences of lambda x: x in Python code with Alex a generally functional style that I'd love to have Alex operator.identity (and a few more trivial functions like that) for Alex readability;-) But, but, but [Skip gets momentarily apoplectic, then recovers...] operator.identity is way more to type than lambda x: x. Plus you have to remember to import the operator module. 0.5 wink Not to mention which (from pydoc operator): [The operator module] exports a set of functions implemented in C corresponding to the intrinsic operators of Python. Last time I checked, Python didn't have an intrinsic identity operator. For which reason, I'd be -1 on the idea of an identity function, certainly in the operator module. Skip -- http://mail.python.org/mailman/listinfo/python-list
Re: calling a dylib in python on OS X
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 [EMAIL PROTECTED] wrote: | Hi | | Is there something similar to python's windll for calling DLLs on win32 | but meant for calling dylib's on OS X? | | thanks, | | r.s. | Can you be more specific about what you are trying to do/what dylib you want to call? - -- Cheers, Kevin Walzer, PhD WordTech Software - Tame the Terminal http://www.wordtech-software.com sw at wordtech-software.com -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.1 (Darwin) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFDW8ZmJmdQs+6YVcoRAvKPAJ0TUW8hgRN6AOn/nBP1v12kqmLXrQCfc5B1 uVv3uBAz7I/jO7l/htpuTb0= =oXiv -END PGP SIGNATURE- -- http://mail.python.org/mailman/listinfo/python-list
Re: Syntax across languages
[EMAIL PROTECTED] wrote: Alex I've seen enough occurrences of lambda x: x in Python code with Alex a generally functional style that I'd love to have Alex operator.identity (and a few more trivial functions like that) for Alex readability;-) But, but, but [Skip gets momentarily apoplectic, then recovers...] operator.identity is way more to type than lambda x: x. Plus you have to remember to import the operator module. 0.5 wink But, it's way more readable, IMHO. Not to mention which (from pydoc operator): [The operator module] exports a set of functions implemented in C corresponding to the intrinsic operators of Python. Last time I checked, Python didn't have an intrinsic identity operator. attrgetter and itemgetter don't exactly correspond to intrinsic operators, either (getitem, and the built-in getattr, are more like that)... yet module operator exports them today, offering more readable (and faster) alternatives to lambda x: x[y] and lambda x: getattr(x, y). For which reason, I'd be -1 on the idea of an identity function, certainly in the operator module. I'm not at all wedded to having 'identity' in the operator module (which may arguably be the wrong placement for 'attrgetter' and 'itemgetter' too). But identity is a useful primitive for a functional style of Python programming, so having it SOMEwhere would be nice, IMHO. Alex -- http://mail.python.org/mailman/listinfo/python-list
Re: calling a dylib in python on OS X
[EMAIL PROTECTED] wrote: Hi Is there something similar to python's windll for calling DLLs on win32 but meant for calling dylib's on OS X? ctypes should work just fine on Macs, just as well as on Windows and Linux machines as well as many other Unix dialects. Try http://starship.python.net/crew/theller/ctypes/ ... Alex -- http://mail.python.org/mailman/listinfo/python-list
Re: Microsoft Hatred FAQ
entropy [EMAIL PROTECTED] writes: [EMAIL PROTECTED] wrote... [EMAIL PROTECTED] wrote... In comp.lang.perl.misc David Schwartz [EMAIL PROTECTED] wrote: Mike Meyer [EMAIL PROTECTED] wrote in message Sorry, but nobody but the government actually owns property. In most places, you can't make non-trivial changes to your property without permission from the government. They even charge you rent on your property, only they call it property tax. I see you are a totalitarianist or perhaps a communist. If you want to live in America and discuss things that are relevent to America, let me know. Why would you say that - Mike Meyer made a point to which you have obviously no answer. Or do you deny that his comments on this matter of property are true? Methinks David simply missed that Mike was being facetious. (Irony and facetiousness don't translate well into print, as Frank Zappa once noted.) Uh, you _were_ being facetious there, weren't you Mike? No, I wasn't. The statements I made are true: the government charges you taxes on your property, and in most places restricts the changes you can make to it and the things you can do in it. I used the words rent and ownership in an unconventional way to emphasize the point. The conventional usage of ownwership ignores these kinds of facts. So you can talk about your house even if you're renting it, or if the bank still owns most of the house. There are political groups that are unhappy with these facts, and like to point out the inconsistencies in the usage of the word ownership. See URL: http://www.huppi.com/kangaroo/L-propertyrights.htm and URL: http://magazine.14850.com/9307/politics.html for examples of this. David claimed that everyone had a right to do whatever they wanted with their property. This is simply false throughout most of the civilized world - zoning laws control what kinds of business you can run on your property, various laws designed to control the looks of the town dictate what you can do to the exterior or lawn, flood and earthquake laws state what kinds of structural changes you can make, and so on. I took the view of a political extremist to point out that he was wrong. David predictably used that to tar me as an extremist from the other end of the spectrum. mike -- Mike Meyer [EMAIL PROTECTED] http://www.mired.org/home/mwm/ Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information. -- http://mail.python.org/mailman/listinfo/python-list
Re: wxpython - passing arg to wx.app OnInit
Peter Hansen [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Stuart McGraw wrote: I have a wxPython app, conventionally structured with a Application class derived from wx.App. My problem is that the app accepts a command line argument that must be acted upon within the OnInit() method of the Application class. How do I pass it cleanly from main() into app.OnInit()? In the simplified example below, dbfn is the piece of info that is in main() that OnInit() needs to use. Is a global variable is the only way? :-( There are various ways, but the simplest is to accept that sys.argv is *already* a global and just to access it directly from the Application's OnInit() method. This wiki page demonstrates: http://wiki.wxpython.org/index.cgi/UsingCommandLineArguments -Peter I simplied the my code for posting. In my real program, the thing being passed is not a command line argument per se, but the result of signifigant processing dependent on the command line argument. I do not want to repeat that processing in the wx.App method. Would you elaborate on the other ways? -- http://mail.python.org/mailman/listinfo/python-list
ANN: PyLZMA 0.1.0 released
Hi, I'm pleased to announce the release of PyLZMA 0.1.0 PyLZMA is a platform independent python library that provides compression using the LZMA algorithm by Igor Pavlov. The LZMA algorithm usually performs better than the zlib or bz2 algorithms. Changes from 0.0.3: * updated to 7-zip 4.23 and LZMA SDK 4.27 * fixed compilation problems with GCC 4 on Linux * added matchfinder algorithms HashChain and Patricia in addition to the default BinTree * support for multithreaded compression on Windows * new usage.txt documentation * added compatibility decompression methods for compressed data without the end of stream marker if the total uncompressed size is unknown You can download the source and Windows installers of the new version from the projects area of my homepage at http://www.joachim-bauch.de The latest sourcecode can be found in the subversion repository at http://fancycode.com/viewcvs/pylzma/trunk/?root=python Greetings, Joachim signature.asc Description: OpenPGP digital signature -- http://mail.python.org/mailman/listinfo/python-list
Localized strftime()
Hi! I'm trying to get a localized date format from strftime() but it seems that is doesn't have any parameters for that or any information about this issue in Python docs. For example I want to turn this: 19 Oct, 2005 to this(slovene language): 19 Okt, 2005 Thanks for help, Sebastjan -- http://mail.python.org/mailman/listinfo/python-list
Re: IDE recommendation please
I'm new to Python but am wondering what IDE Python developers use? I use Mac OS X 10.4.2. Just look in the archives of the Pythonmac mailinglist. We have discussed this very subject intensively recently, with a pretty extensive review of the different IDEs available. I'll get a copy of WingIDE as soon as I get my new PowerMac. Suggestions for plugins for Eclipse would also be nice. Err, Eclipse (imho) is a H-O-G. Sincerely, Wolfgang -- http://mail.python.org/mailman/listinfo/python-list
Re: Localized strftime()
Sebastjan Trepca wrote: I'm trying to get a localized date format from strftime() but it seems that is doesn't have any parameters for that or any information about this issue in Python docs. For example I want to turn this: 19 Oct, 2005 to this(slovene language): 19 Okt, 2005 you must call locale.setlocale first, to switch from the default C locale to a locale of your choice. http://docs.python.org/lib/module-locale.html import time print time.strftime(%a, %d %b %Y %H:%M:%S) Sun, 23 Oct 2005 20:38:56 import locale locale.setlocale(locale.LC_TIME, sv_SE) # swedish 'sv_SE' print time.strftime(%a, %d %b %Y %H:%M:%S) sön, 23 okt 2005 20:39:15 locale.setlocale(locale.LC_TIME, sl_SI) 'sl_SI' print time.strftime(%a, %d %b %Y %H:%M:%S) ned, 23 okt 2005 20:39:32 /F -- http://mail.python.org/mailman/listinfo/python-list
Re: Microsoft Hatred FAQ
Steven D'Aprano [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] No, not at all. It is the gravest act of self-contradiction to maintain that one should be allowed to pursue one's own interest while denying that same right to others. This is perhaps the most ignorant thing I've seen written down by somebody educated for a long, long long time. An individual's self-interest may very well include theft, murder or rape, to mention just a few examples. You are dishonest, lying sack of shit. DS -- http://mail.python.org/mailman/listinfo/python-list
Re: Microsoft Hatred FAQ
Steven D'Aprano [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] On Sat, 22 Oct 2005 18:02:44 -0700, David Schwartz wrote: I see you are a totalitarianist or perhaps a communist. If you want to live in America and discuss things that are relevent to America, let me know. In other words, why don't you go back to Russia, you commie pinko fascist Jew Nazi. No. Mike Meyer has got just as much right to live in America as David Schwartz. Nice to see how quickly Americans' supposed love of freedom disappears once they are exposed to views that contradict their own. This is about whether we're talking *ABOUT* America, you idiot. It's as if he said the press has no freedom, and I replied, if you want to talk about some country where that's true, fine, but this discussion presumed America as the basis. Remember, he is the one who said the government owned the economy. That may be true in some countries, but it's simply *FALSE* in this country. Our government has limited powers and ownership of the economy is not one of them. DS -- http://mail.python.org/mailman/listinfo/python-list
Re: Microsoft Hatred FAQ
Mike Meyer [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] I am not saying Microsoft did not know the law. I am saying that no rational person could have expected the law to be applied to Microsoft that way it was. The law *must* put a person on notice of precisely what conduct it prohibits. However, in this case, the law's applicability was conditioned on an abritrary and irrational choice of what the relevant market was. MS has a long history of dancing with the DOJ, and has been repeatedly warned about the legality - or lack thereof - of their behavior. No rational person who knew of that history could expect the law to be applied to MS in any way other than the way it was. Since when does the DOJ get to make the law? (George Bush's claims to the contrary not withstanding.) The issue is whether the *LAW* put Microsoft on notice. A just law must itself put people on notice as to precisely what conduct constitutes a violation of that law. In that case, we hav an *awful* lot of unjust laws, because laws seldom disallow precise behavior. That is true. A law *must* put a reasonable person on notice of precisely what conduct it prohibits and what it does not. At the fringes, the tie goes to the runner, that is, the conduct is not illegal. The law is not supposed to care about things that are trivial. (Except in genuine private entity versus private entity non-criminal cases, where the law really is about the slightest tip of the scales and there is no presumption for either party.) Which is the only rational way for a system of laws to work. Requiring that the law predict *everything* that someone might do to harm others and explicitly listing all those cases is silly. That's not what I'm asking for. I'm asking that the law *clearly* put people on notice of what conduct is prohibited. That's very easy in legitimate laws, because we all know what it means to punch someone or to rob them. It becomes very difficult in illegitimate laws, because there is no reasonable test to decide whether something is a 'monopoly' or not. This burden makes it harder for the government to pass unjust laws, and that is a good thing. Instead, you outline a class of actions and tag them all as illegal. That's why we have laws against assault and battery and unsafe driving. And laws against exercising monopoly power in an unfair manner. Interesting how you, again, equate a gun and an argument. It is very important to you to justify responding to arguments with guns. However, I reject that premise at its roots, not just in your application of it. DS -- http://mail.python.org/mailman/listinfo/python-list
Re: Microsoft Hatred FAQ
[EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] In comp.lang.perl.misc David Schwartz [EMAIL PROTECTED] wrote: Mike Meyer [EMAIL PROTECTED] wrote in message Sorry, but nobody but the government actually owns property. In most places, you can't make non-trivial changes to your property without permission from the government. They even charge you rent on your property, only they call it property tax. I see you are a totalitarianist or perhaps a communist. If you want to live in America and discuss things that are relevent to America, let me know. Why would you say that - Mike Meyer made a point to which you have obviously no answer. Or do you deny that his comments on this matter of property are true? His comments are not applicable to America. They are applicable to a country where the government owns the economy. No reply is needed to his comments except to point out that they only apply to a communist or totalitarian state. We don't have one here, so his argument doesn't apply. I am not saying because you are a communist, your argument is wrong. I am saying, because your argument is based upon communist or totalitarian premises about the relationship between the government and the economy, it does not apply to the United States, and we were talking about the United States. I really felt that this was obvious, but I guess it wasn't. DS -- http://mail.python.org/mailman/listinfo/python-list
Re: Microsoft Hatred FAQ
Mike Meyer [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] David claimed that everyone had a right to do whatever they wanted with their property. This is simply false throughout most of the civilized world - zoning laws control what kinds of business you can run on your property, various laws designed to control the looks of the town dictate what you can do to the exterior or lawn, flood and earthquake laws state what kinds of structural changes you can make, and so on. I took the view of a political extremist to point out that he was wrong. David predictably used that to tar me as an extremist from the other end of the spectrum. Here's a question for you, Mike. Presumably, you have the right not to be shot for no reason at all. Does that right act as a bulletproof vest that actually physically prevents me from shooting you? If I argued that a person had a right not to be shot for no reason at all by a random stranger, would you point out that such shootings occur throughout the civilized world as some kind of refutation? The way you respond to what I'm saying shows that you really don't have any clue whatsoever of what the words I'm using *mean*. Do you even know what a right is? (Such that, for example, it's possible for rogue governments to violate the rights of their citizens even if those governments don't recognize those rights.) DS -- http://mail.python.org/mailman/listinfo/python-list
Re: wxpython - passing arg to wx.app OnInit
Stuart McGraw wrote: I simplied the my code for posting. In my real program, the thing being passed is not a command line argument per se, but the result of signifigant processing dependent on the command line argument. I do not want to repeat that processing in the wx.App method. Would you elaborate on the other ways? In that case, override __init__ something like this: class Application(wx.App): def __init__(self, *pargs, clargs=None, **kwargs): self.clargs = clargs or [] # store reference to args # call parent class initializer wx.App.__init__(self, *pargs, **kwargs) def OnInit(self): # use self.clargs here app = Application(redirect=0, clargs=[dbfn]) or whatever... I just guessed at what you meant to do with dbfn though, but I think the basic idea is clear enough. -Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: Microsoft Hatred FAQ
Mike Meyer [EMAIL PROTECTED] wrote: ... David claimed that everyone had a right to do whatever they wanted with their property. This is simply false throughout most of the civilized world - zoning laws control what kinds of business you can Incidentally, the perfectly good rationale for this universal existence of limitations to doing whatever you want with your property is known in economics as *externalities*. Transactions that appear to involve just one or two parties, and be entirely voluntary between them, may in fact produce all sort of beneficial or detrimental effects on further parties who have not necessarily agreed to that. For example, I may own a certain lot of land, but if on that lot I place a siren blaring and a huge flashing red sign, the energy of the sound waves and light will inevitably also affect other nearby places, which I do _not_ own (either they're commons, or owned by somebody else), imposing an externality on owners and/or users of those nearby places. Of course, while some externalities are entirely obvious (it's hard to argue against such sirens and flashing lights being otherwise), many others are subtler and more debatable, so one reasonable society might acknowledge a certain class of externality and try to regulate it while another might prefer not to do so. But the general concept of society as a whole placing limitations on private owners' uses of the property, based on externalities certain uses might impose on unwilling parties, is as solid as a rock, both practically and theoretically -- however much anarchists or extreme libertarians might wish otherwise. Alex -- http://mail.python.org/mailman/listinfo/python-list
Re: Microsoft Hatred FAQ
David Schwartz [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Mike Meyer [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] David claimed that everyone had a right to do whatever they wanted with their property. This is simply false throughout most of the civilized world - zoning laws control what kinds of business you can run on your property, various laws designed to control the looks of the town dictate what you can do to the exterior or lawn, flood and earthquake laws state what kinds of structural changes you can make, and so on. I took the view of a political extremist to point out that he was wrong. David predictably used that to tar me as an extremist from the other end of the spectrum. Here's a question for you, Mike. Presumably, you have the right not to be shot for no reason at all. Does that right act as a bulletproof vest that actually physically prevents me from shooting you? If I argued that a person had a right not to be shot for no reason at all by a random stranger, would you point out that such shootings occur throughout the civilized world as some kind of refutation? The way you respond to what I'm saying shows that you really don't have any clue whatsoever of what the words I'm using *mean*. Do you even know what a right is? (Such that, for example, it's possible for rogue governments to violate the rights of their citizens even if those governments don't recognize those rights.) I'd be interested in hearing what you think a right is? In Florida, for example, you have the right to gun someone down if you think they're a bit too menacing. In Canada, most people find that reprehensible. So does a Floridian visiting Canada have their rights infringed on by our rogue government because they're not allowed to gun down menacing looking Canadians at will? Should they be able to exercise that right regardless and not have to face the consequences of our laws? I think right, however, was the wrong choice of words in this thread; there is rarely anything codifying a company's right to succeed at all costs and at the expense of all competition (except Crown Corporations and the like, which are created (in theory, anyway) in the interest of general population as opposed to it). Your question here appears to be one of ethics. Is MS ethically bankrupt for pursuing business practices that run counter to society's established norms, and should they be punished for doing so? And is their behaviour the more reprehensible because of the contempt they show for the decisions of society's judicial arm. Matt -- http://mail.python.org/mailman/listinfo/python-list
Tricky Areas in Python
What possible tricky areas/questions could be asked in Python based Technical Interviews? -- http://mail.python.org/mailman/listinfo/python-list
Re: Localized strftime()
Great, it works, thanks :) On 23/10/05, Fredrik Lundh [EMAIL PROTECTED] wrote: Sebastjan Trepca wrote: I'm trying to get a localized date format from strftime() but it seems that is doesn't have any parameters for that or any information about this issue in Python docs. For example I want to turn this: 19 Oct, 2005 to this(slovene language): 19 Okt, 2005 you must call locale.setlocale first, to switch from the default C locale to a locale of your choice. http://docs.python.org/lib/module-locale.html import time print time.strftime(%a, %d %b %Y %H:%M:%S) Sun, 23 Oct 2005 20:38:56 import locale locale.setlocale(locale.LC_TIME, sv_SE) # swedish 'sv_SE' print time.strftime(%a, %d %b %Y %H:%M:%S) sön, 23 okt 2005 20:39:15 locale.setlocale(locale.LC_TIME, sl_SI) 'sl_SI' print time.strftime(%a, %d %b %Y %H:%M:%S) ned, 23 okt 2005 20:39:32 /F -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: Tricky Areas in Python
PyPK wrote: What possible tricky areas/questions could be asked in Python based Technical Interviews? I would try to check if the applicant understands the Python data model: http://docs.python.org/ref/objects.html Because I thinkt that's fundamental to understanding the Python language and understanding complexity of operations. -- Gerhard -- http://mail.python.org/mailman/listinfo/python-list
Re: Microsoft Hatred FAQ
Matt Garrish [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] I'd be interested in hearing what you think a right is? A right is a scope of authority. That is, a sphere within which one's decision is sovereign. In Florida, for example, you have the right to gun someone down if you think they're a bit too menacing. In Canada, most people find that reprehensible. So does a Floridian visiting Canada have their rights infringed on by our rogue government because they're not allowed to gun down menacing looking Canadians at will? That's obviously a complicated question but totally unrelated to the issue at hand, which was one's sovereignty over one's own property. Obviously issues where a person has to use force against another are going to be complicated. The existence of complicated questions doesn't make the simple ones complicated. Should they be able to exercise that right regardless and not have to face the consequences of our laws? I think there are objective criteria in which the use of force is justified regardless of the laws. However, the strategic decision of whether to use objectively justifiable force when one may not be able to justify it to non-objective observers who may use force against you is going to be a complicated one. I think right, however, was the wrong choice of words in this thread; there is rarely anything codifying a company's right to succeed at all costs and at the expense of all competition (except Crown Corporations and the like, which are created (in theory, anyway) in the interest of general population as opposed to it). My point was that the Microsoft corporation was not an impersonal entity. It is an entity that is supposed to embody the will and rights of its shareholders and exists to allow them to act together for their own benefit. Your question here appears to be one of ethics. Is MS ethically bankrupt for pursuing business practices that run counter to society's established norms, and should they be punished for doing so? And is their behaviour the more reprehensible because of the contempt they show for the decisions of society's judicial arm. It is only proper to show contempt for bad decisions. MS obligation was to comply with the law and not perform actions that the law put them on clear notice were prohibited. The court's determination of the relevent market, on wich all of their other decisions were predicated, was arbitrary and bizarre, and the law did not provide any notice of how the market would be determined. In the sense of interchangeability, almost all operating systems are monopolies. And if you go by application, Windows, Linux, and FreeBSD are all interchangeable -- there is nothing significant you can do on one that you can't do on the other. DS -- http://mail.python.org/mailman/listinfo/python-list
TurboGears the Podcast
Can be found at http://www.awaretek.com/python/index.html -- http://mail.python.org/mailman/listinfo/python-list
Hengelsportbeurs
http://www.drentorganisatiebureau.nl/beurs/indexfront.html Nog zin om te gaan? -- http://mail.python.org/mailman/listinfo/python-list
PyGTK color blackout
Without success I try to understand the color mechanism in PyGTK. It's about the classes Color an Colormap, and their methods and related functions and other paraphernalia. If anyone knows about a tutorial-like systematic description, I will be very grateful. -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Amsterdam - 020 6257991 -- http://mail.python.org/mailman/listinfo/python-list
Re: IDE recommendation please
Gian Mario Tagliaretti wrote: microsnot wrote: I'm new to Python but am wondering what IDE Python developers use? I use Mac OS X 10.4.2. I have PythonIDE which comes with MacPython but I don't think that has even rudimentary intellisense. Xcode and Eclipse don't seem to support Python out of the box. Suggestions for plugins for Eclipse would also be nice. I use wingIDE and as Alex said before is the best python IDE ever... cheers I too am a happy Wing IDE user. The debugging features are very convenient. regards Steve -- Steve Holden +44 150 684 7255 +1 800 494 3119 Holden Web LLC www.holdenweb.com PyCon TX 2006 www.python.org/pycon/ -- http://mail.python.org/mailman/listinfo/python-list
Re: IDE recommendation please
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 microsnot wrote: | I'm new to Python but am wondering what IDE Python developers use? I use Mac | OS X 10.4.2. I have PythonIDE which comes with MacPython but I don't think | that has even rudimentary intellisense. Xcode and Eclipse don't seem to | support Python out of the box. Suggestions for plugins for Eclipse would | also be nice. | The situation has been pretty bleak, and I've tried (even maintained Mac packages for awhile) nearly all the open-source IDE's out there, including SPE, Boa, Eric3, etc. They all crashed constantly in my experience. SPE has been making more of a Mac push since I stopped maintaining Mac packages so it may have improved. Komodo is a good IDE and is currently in beta testing on OS X: see www.activestate.com for the particulars. It's more polished than any of the open-source tools (though it should be for the $300 that the pro version costs), and runs natively (as an Aqua app). Komodo is not Python-only, but if you are developing commercially it is a very good tool to consider. WingIDE is also very powerful, but runs only as an X11 app on the Mac. That may or may not be a problem for you. I've ultimately settled on a primitive set of tools myself, Emacs or IDLE, plus the console. Fewer bells and whistles, but they are stable, and don't get in my way. - -- Cheers, Kevin Walzer, PhD WordTech Software - Tame the Terminal http://www.wordtech-software.com sw at wordtech-software.com -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.1 (Darwin) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFDXAIlJmdQs+6YVcoRAqsKAJ0YX14aGH5pUpujXb+wmYoWbGUkWQCfX0oK 6kiXX9w+rAIbo5qCYGUWIuc= =YSju -END PGP SIGNATURE- -- http://mail.python.org/mailman/listinfo/python-list
Re: Microsoft Hatred FAQ
David Schwartz [EMAIL PROTECTED] writes: Instead, you outline a class of actions and tag them all as illegal. That's why we have laws against assault and battery and unsafe driving. And laws against exercising monopoly power in an unfair manner. Interesting how you, again, equate a gun and an argument. It is very important to you to justify responding to arguments with guns. However, I reject that premise at its roots, not just in your application of it. Another straw man. I never mentioned the word gun at all, and none of the crimes I discussed require a gun. You apparently aren't interested in constructive intercourse on the question. You're just interesting in knocking down your own arguments. Personally, I'd rather not watch you masterbate. mike -- Mike Meyer [EMAIL PROTECTED] http://www.mired.org/home/mwm/ Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information. -- http://mail.python.org/mailman/listinfo/python-list
Re: Tricky Areas in Python
hmm Thats one thing. Also I was thinking of something like benefites of python over other languages. Probably that coould be one ? -- http://mail.python.org/mailman/listinfo/python-list
Re: Microsoft Hatred FAQ
David Schwartz [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Matt Garrish [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] I'd be interested in hearing what you think a right is? A right is a scope of authority. That is, a sphere within which one's decision is sovereign. Then why were you claiming that a government can infringe on a person's rights if those rights are not codified or even accepted by those people? The idea of inalienable rights for anyone in a Western society only exists if you believe that the rights of Western societies are inalienable and should be respected everywhere. There is a huge arrogance in that assumption, though, and once you enter a jurisdiction that does not hold your rights to be inalienable they are no longer your rights. You can have generally agreed upon rights, but as you note, those rights can only be hoped for if the systems exist to enforce them. Once those systems erode, you no longer have rights only hopes. The more you allow those systems to be eroded, the less you can expect your rights to exist. In the end, the slippery slope theory would suggest that if you allow MS to get away with bad business practices you are in effect giving all companies the right to leverage whatever means are at their disposal to do the same, to the detriment of society. In Florida, for example, you have the right to gun someone down if you think they're a bit too menacing. In Canada, most people find that reprehensible. So does a Floridian visiting Canada have their rights infringed on by our rogue government because they're not allowed to gun down menacing looking Canadians at will? That's obviously a complicated question but totally unrelated to the issue at hand, which was one's sovereignty over one's own property. Obviously issues where a person has to use force against another are going to be complicated. The existence of complicated questions doesn't make the simple ones complicated. I brought it up as an example of why rights are difficult in all cases. You can't claim that anyone has a right to the land they live on. Your only legitimacy to ownership comes through goverment and its ability to enforce that legitimacy for you. And if you really want to get contentious, in Canada and the US your only legitimacy comes from an artificial transaction between a landowner and your government at some time in the past to legitimize its sovereignty over Native American land. Your only real right when it comes to land ownership is to receive some kind of compensation if it is taken away. Your government could decide at any time to expropriate your property to build a new highway (for example), and you'd be out in the cold. You can try to fight the government in court but more often than not you'll lose because the greater good of society outweighs your right to own the land (and the assumption is always that governments work for the greater good of society). And add to that all the covenants and municipal laws you have to obey when purchasing property and the notion that you have sovereignty over your land becomes even less tenable. Matt -- http://mail.python.org/mailman/listinfo/python-list
Re: Microsoft Hatred FAQ
On Sun, 23 Oct 2005 11:43:44 -0700, David Schwartz wrote: You are dishonest, lying sack of shit. And David posts his true colours to the mast at last. When rational argument and logical thoughts fails, fall back on personal insults. -- Steven. -- http://mail.python.org/mailman/listinfo/python-list
Re: Python variables are bound to types when used?
On Sat, 22 Oct 2005, Fredrik Lundh wrote: [EMAIL PROTECTED] wrote: reset your brain: http://effbot.org/zone/python-objects.htm Is it really a good idea to say that objects have names? Isn't it cleaner to describe objects without any reference to names or variables or whatnot, then introduce names, namespaces and references as tools for working with objects? You go on to explain this clearly, but it's a bit of a confusing way to start! tom PS Sorry to be following up to a message other than the one i'm actually replying to - the original, i'm afraid, is an ex-message. -- It is a laborious madness, and an impoverishing one, the madness of composing vast books. -- Jorge Luis Borges -- http://mail.python.org/mailman/listinfo/python-list
Re: Microsoft Hatred FAQ
Mike Meyer [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] David Schwartz [EMAIL PROTECTED] writes: Instead, you outline a class of actions and tag them all as illegal. That's why we have laws against assault and battery and unsafe driving. And laws against exercising monopoly power in an unfair manner. Interesting how you, again, equate a gun and an argument. It is very important to you to justify responding to arguments with guns. However, I reject that premise at its roots, not just in your application of it. Another straw man. I never mentioned the word gun at all, and none of the crimes I discussed require a gun. You can't be that stupid, can you?! Tell me it wasn't obvious to you that the phrase a gun and an argument means the difference between force and disagreement. You apparently aren't interested in constructive intercourse on the question. You're just interesting in knocking down your own arguments. Personally, I'd rather not watch you masterbate. You're are the one who brought up assault and battery and unsafe driving, equating Microsoft's persuasive negotiation tactics with force in an attempt to justify responding to them with force. DS -- http://mail.python.org/mailman/listinfo/python-list
Re: Microsoft Hatred FAQ
Matt Garrish wrote: body not downloaded That does it. From this point on my newsfilter is killing (leaving on the server) any articles cross-posted to more than three groups. To all of the snivelling punks polluting the Usenet with their verbal diarrhea here: Shut up and go away. Done. (I haven't read a single post here, but don't need to. A bunch of aliases with no posting histories equals trolls equals verbal diarrhea.) And my killfile thanks you for the sumptuous feast all of the aliases used on this thread have given it. Do your Mommy's know that you are playing with their computers again? AC -- Homepage: http://home.earthlink.net/~alanconnor/ Fanclub: http://www.pearlgates.net/nanae/kooks/alanconnor.shtml -- http://mail.python.org/mailman/listinfo/python-list
Re: Microsoft Hatred FAQ
Matt Garrish [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] A right is a scope of authority. That is, a sphere within which one's decision is sovereign. Then why were you claiming that a government can infringe on a person's rights if those rights are not codified or even accepted by those people? The idea of inalienable rights for anyone in a Western society only exists if you believe that the rights of Western societies are inalienable and should be respected everywhere. There is a huge arrogance in that assumption, though, and once you enter a jurisdiction that does not hold your rights to be inalienable they are no longer your rights. You can have generally agreed upon rights, but as you note, those rights can only be hoped for if the systems exist to enforce them. Once those systems erode, you no longer have rights only hopes. The more you allow those systems to be eroded, the less you can expect your rights to exist. This would suggest that rogue governments can't infringe on the rights of their people because those people have no rights since their societies don't recognize any. This is another principle I reject at its roots. Your rights exist whether or not others choose to respect them. DS -- http://mail.python.org/mailman/listinfo/python-list
Re: Microsoft Hatred FAQ
On Sun, 23 Oct 2005 13:52:38 -0700, David Schwartz wrote: The court's determination of the relevent market, on wich all of their other decisions were predicated, was arbitrary and bizarre, and the law did not provide any notice of how the market would be determined. You keep saying that, as if people could do their word processing and run their financial accounting software on the micro-controllers of microwave ovens or the computer in their car engine. The market of desktop PC is a perfectly obvious and natural market. You are the one insisting on arbitrarily lumping together who knows what other products in with the desktop PC. I say who knows for a reason -- the only two examples you have come up with were Apple Macintoshes and desktop PCs running Linux (both less than 5% of the market *now*, and even less back when the court was investigating Microsoft). Making your position even more bizarre, both of these products were recognised by the court as part of the market in question, both were recognised as potential competing products put at risk due to Microsoft's illegal behaviour. In the sense of interchangeability, almost all operating systems are monopolies. You don't know what the word monopoly actually means in either law or economics, do you? What you have written is a perfectly grammatical sentence that makes no sense whatsoever. If OSes are monopolies, then they are NOT interchangeable -- but you state in the very next sentence that they are. And if you go by application, Windows, Linux, and FreeBSD are all interchangeable -- there is nothing significant you can do on one that you can't do on the other. Try telling that to a business that needs to do computerised book-keeping of wages and payroll. -- Steven. -- http://mail.python.org/mailman/listinfo/python-list
Re: Tricky Areas in Python
I usually start by asking how you make variables private within classes. That seems to tell me if they understand something about the design of the language and it's a quick filter to tell if they know something about the syntax. The other question that I use is asking about 3rd party libraries that they have found useful. That can lead into some good questions about what they like about those libraries and what they dislike. That question helps me understand whether they've thought at all about how to design in Python. If I can't get a good conversation started with either of those, I'll ask what they don't like about Python, to see if they've actually used it to solve a real problem, or if they've just read the tutorial. As always, the best interview questions are open-ended, and give the candidate some room to really show their stuff (or give them enough rope to hang themselves). -- http://mail.python.org/mailman/listinfo/python-list
Re: calling a dylib in python on OS X
You can use Pyrex which will generate a C module for you. vic On 22 Oct 2005 23:40:17 -0700, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Hi Is there something similar to python's windll for calling DLLs on win32 but meant for calling dylib's on OS X? thanks, r.s. -- http://mail.python.org/mailman/listinfo/python-list -- Never attribute to malice that which can be adequately explained by stupidity. - Hanlon's Razor -- http://mail.python.org/mailman/listinfo/python-list
Re: Microsoft Hatred FAQ
On Sat, 22 Oct 2005 19:54:58 -0300, Shmuel (Seymour J.) Metz [EMAIL PROTECTED] wrote or quoted : As well as blame. The commercialization of the Internet was grossly mismanaged. Take the InterNIC - please! As global bureaucracies go, I think they have done a good job. Can you imagine herding the cats of egotistical dictators and politicians from every country on earth who have not a clue about what the function of domain are? -- Canadian Mind Products, Roedy Green. http://mindprod.com Again taking new Java programming contracts. -- http://mail.python.org/mailman/listinfo/python-list
Re: Syntax across languages
On Sun, 23 Oct 2005, Fredrik Lundh wrote: [EMAIL PROTECTED] wrote: - ~== for approximate FP equality str(a) == str(b) This is taken from the AI 754 standard, i take it? :) Seriously, that's horrible. Fredrik, you are a bad man, and run a bad railway. However, looking at the page the OP cites, the only mention of that operator i can find is in Dylan, and in Dylan, it's nothing to do with approximate FP equality - it means 'not identical', which we can spell is not. What would approximate FP equality even mean? How approximate? - Exception retrying: after catching an exception, tell the snippet to be re-run retry as in Ruby x = 0 while 1: ... try: ... x += 1 ... if x = 5: ... raise ValueError ... except ValueError: ... print retry ... continue ... else: ... break ... retry retry retry retry retry That works well for trivial cases, and not at all for anything complex. If you have this sort of structure: def reverse_the_polarity_of_the_neutron_flow(): five_hundred_lines_of_code() and_dozens_of_layers_of_nesting_and_indirection() interrossitor.activate() # can raise InterrossitorError do_what_we_came_here_to_do() try: reverse_the_polarity_of_the_neutron_flow() except InterrossitorError: degausser.degauss(interrossitor) interrossitor.activate() RETRY # how do you implement this? You're in trouble. I realise that this snippet is not a hugely compelling example, but the point is that there could be some corrective action that you can take in an exception handler which, for some reason, you can't write close enough to the source of the exception that control can carry on flowing in the right direction. What you can do - and this is fairly high-grade evil of a different sort - is package the exception-handling specifics in a function, and pass that in, to be applied at the appropriate point: def reverse_the_polarity_of_the_neutron_flow(ie_hdlr): five_hundred_lines_of_code() and_dozens_of_layers_of_nesting_and_indirection() try: interrossitor.activate() # can raise InterrossitorError except InterrossitorError, e: ie_hdlr(e) do_what_we_came_here_to_do() def handle_interrossitor_error(e): degausser.degauss(interrossitor) interrossitor.activate() reverse_the_polarity_of_the_neutron_flow(handle_interrossitor_error) You can even do extra bonus higher-order-functioning: def reverse_the_polarity_of_the_neutron_flow(ie_hdlr): five_hundred_lines_of_code() and_dozens_of_layers_of_nesting_and_indirection() ie_hdlr(interrossitor.activate) do_what_we_came_here_to_do() def handle_interrossitor_error(fn): try: fn() except InterrossitorError, e: degausser.degauss(interrossitor) interrossitor.activate() reverse_the_polarity_of_the_neutron_flow(handle_interrossitor_error) Although i can't see any reason why you'd want to. - recursive flatten as in Ruby (useful) if you can define the semantics, it's a few lines of code. if you're not sure about the semantics, a built-in won't help you... While we're on the subject, we had a big recursive flatten bake-off round here a few months back: look for a thread called flatten(), [was Re: map/filter/reduce/lambda opinions andbackground unscientific mini-survey], and filter out the posts with code from the posts with rants. There are all sorts of solutions, coming at the problem from different angles, but the end of it is more or less here: http://groups.google.co.uk/group/comp.lang.python/msg/0832db53bd2700db Looking at the code now, i can see a couple of points where i could tweak my flatten even more, but i think the few microseconds it might save aren't really worth it! tom -- It is a laborious madness, and an impoverishing one, the madness of composing vast books. -- Jorge Luis Borges -- http://mail.python.org/mailman/listinfo/python-list
how to count and extract images
I'm trying to get the location of the image uisng
start = s.find('a href=somefile') + len('a
href=somefile')
stop = s.find('Save File/a/B',
start) fileName = s[start:stop]
and then construct the url with the filename to download the image
which works fine as cause every image has the Save File link and I can
count number of images easy the problem is when there is more than image I
try using while loop downlaod files, wirks fine for the first one but
always matches the same, how can count and thell the look to skip the fist
one if it has been downloaded and go to next one, and if next one is
downloaded go to next one, and so on.
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Re: Syntax across languages
Tom Anderson [EMAIL PROTECTED] wrote: ... What would approximate FP equality even mean? How approximate? In APL, it meant to within [a certain quad-global whose name I don't recall] in terms of relative distance, i.e., if I recall correctly, a=b meant something like abs(a-b)/(abs(a)+abs(b)) quadEpsilon or thereabouts. Not too different from Numeric.allclose, except the latter is richer (it takes both absolute and relative epsilons, and also implies an and-reduce if the objects being compared are arrays). Alex -- http://mail.python.org/mailman/listinfo/python-list
Re: how to count and extract images
Joe [EMAIL PROTECTED] wrote:
I'm trying to get the location of the image uisng
start = s.find('a href=somefile') + len('a
href=somefile')
stop = s.find('Save File/a/B',
start) fileName = s[start:stop]
and then construct the url with the filename to download the image
which works fine as cause every image has the Save File link and I can
count number of images easy the problem is when there is more than image I
try using while loop downlaod files, wirks fine for the first one but
always matches the same, how can count and thell the look to skip the fist
one if it has been downloaded and go to next one, and if next one is
downloaded go to next one, and so on.
Pass the index from where the search must start as the second argument
to the s.find method -- you're already doing that for the second call,
so it should be pretty obvious it will also work for the first one, no?
Alex
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Re: Tricky Areas in Python
PyPK [EMAIL PROTECTED] wrote: What possible tricky areas/questions could be asked in Python based Technical Interviews? I like to present code that seems like it should work, but has some kind of relatively subtle problem, either of correctness in some corner case, or of performance, etc -- and I ask them what they would say if they were to code-review that code, or how they would help a student who came to them with that code and complaints about it not working, c. This tells me whether they have real-world Python experience, and how deep, or whether they've carefully studied the appropriate areas of Python in a Nutshell and the Cookbook (and I'm biased enough to think that the second kind of preparation is almost as good as the first kind...;-). Not sure whether you think this count as tricky... they're typically problems that do come up in the real world, from (e.g.): for string_piece in lots_of_pieces: bigstring += string_piece (a typical performance-trap) to for item in somelist: if isbad(item): somelist.remove(item) (with issues of BOTH correctness and performance), to class Sic: def getFoo(self): ... def setFoo(self): ... foo = property(getFoo, setFoo) to class Base(object) def getFoo(self): ... def setFoo(self): ... foo = property(getFoo, setFoo) class Derived(Base): def getFoo(self): and so on, and so forth. If a candidate makes short work of a couple of these, and I've been asked to focus my part of the interview solely on Python coding, I may branch out into more advanced stuff such as asking for an example use case for a closure, a custom descriptor, or an import hook, for example -- those are the cases in which I'm trying to decide if, on a scale of 1 to 5, the candidate's Python competence is about 4 or well over 4 (I would not consider having no idea of why one might want to code a custom descriptor to be at all disqualifying -- it would just mean I'd rate the candidate 4 out of five, instead of 4.5 or more, for Python coding competence). Alex -- http://mail.python.org/mailman/listinfo/python-list
Re: how to count and extract images
Joe [EMAIL PROTECTED] writes:
start = s.find('a href=somefile') + len('a
href=somefile')
stop = s.find('Save File/a/B',
start) fileName = s[start:stop]
and then construct the url with the filename to download the image
which works fine as cause every image has the Save File link and I can
count number of images easy the problem is when there is more than image I
try using while loop downlaod files, wirks fine for the first one but
always matches the same, how can count and thell the look to skip the fist
one if it has been downloaded and go to next one, and if next one is
downloaded go to next one, and so on.
To answer your question, use the first optional argument to find in both
invocations of find:
stop = 0
while end = 0:
start = s.find('a href=somefile', stop) + len('a href=somefile')
stop = s.find('Save File/a/B', start)
fileName = s[start:stop]
Now, to give you some advice: don't do this by hand, use an HTML
parsing library. The code above is incredibly fragile, and will break
on any number of minor variations in the input text. Using a real
parser not only avoids all those problems, it makes your code shorter.
I like BeautifulSoup:
soup = BeautifulSoup(s)
for anchor in soup.fetch('a'):
fileName = anchor['href']
to get all the hrefs. If you only want the ones that have Save File
in the link text, you'd do:
soup = BeautifulSoup(s)
for link in soup.fetchText('Save File'):
fileName = link.findParent('a')['href']
mike
--
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Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information.
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