best option for python lex/yacc?

I'm porting a C lex/yacc based project, and would like to redo it in python. What's the best option for a python lex/yacc-like? I've googled a few things, but wanted to see the current concensus. Many TIA! Mark -- Mark Harrison Pixar Animation Studios -- http://mail.python.org/mailman/listinfo

Re: The Importance of Terminology's Quality

Why this response is so belated: = > Date: Thu, 05 Jun 2008 11:37:48 +0100 > From: Jon Harrop <[EMAIL PROTECTED]> > We all know that Java, Perl, Python and Lisp suck. Well at least you're three-quarters corr

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List Performance

If I happen to have a list that contains over 50,000 items, will the size of the list severely impact the performance of appending to the list? -- http://mail.python.org/mailman/listinfo/python-list

Re: How do web templates separate content and logic?

On Mon, Jun 30, 2008 at 11:27 AM, Tim Roberts <[EMAIL PROTECTED]> wrote: > John Salerno <[EMAIL PROTECTED]> wrote: > > > > > If it seems out of place to you, then you shouldn't do it. In general, you > need to find a model that makes sense to you, and that allows you to write > readable, workable

Re: help debugging noob code - converting binary data to images...

success, had to fill in a few blanks with some more googling, here is the finished script (used all for loops this time, saved a few more lines): == #!/usr/local/bin/python import string import Image, ImageDraw size = 2 im = Image.new("1",[8*size,8*size],1) draw = ImageDraw.Draw(im)

Re: pixel colour on screen

[EMAIL PROTECTED] wrote: > >Could anyone help me, I'm a python noob and need some help. im trying >to find some code that will, given a screen co-ordinate, will give me >the colour of that pixel in RGB. i have found a lot about getting the >pixel colour from a picture file with a given co-ordinate,

Re: frame grabber hardware

[EMAIL PROTECTED] wrote: > >can anybody recommend a simple USB or PCI framegrabber with video >input that runs under xp and has a python driver available? I just >want to get the image into a file, no special requirements. There are a vast range of inexpensive web cams that will do this job. Logit

Re: [Employment] New TurboGears Job in Eugene, OR

[EMAIL PROTECTED] (Aahz) wrote: >Paul McNett <[EMAIL PROTECTED]> wrote: >> >>They want an expert for a maximum of $25 per hour? If they find someone, >>it'll be a pretty good bullshitter looking for experience. > >Note that it's an "academic year" position -- lots and lots of vacation >time. Thi

Re: How do web templates separate content and logic?

John Salerno <[EMAIL PROTECTED]> wrote: > >No, I don't mean presentation logic at all. I mean something along the >lines of combining HTML (which is what I refer to as "content") and >Python (which is what I meant by "logic"). So for example, if you have >code like this (and this isn't necessari

Re: How to invoke the Python idle

Alon Ben-Ari wrote: Thank you yes I have This is what I got: [EMAIL PROTECTED]:~> idle bash: idle: command not found [EMAIL PROTECTED]:~> Any idea ? Alon On Sun, Jun 29, 2008 at 10:05 PM, David <[EMAIL PROTECTED] > wrote: Only-Trouble wrote: Hi all

Re: How to invoke the Python idle

Only-Trouble wrote: > Hi all > I am running openSUSE 10.3 > I am learning python on my own, it seems like the system has > already installed a python IDLE > The question is how to invoke it? If it's anything like my Red Hat system, I had to find the command first. In my case, at: /usr/lib/pyth

Re: How to invoke the Python idle

On Jun 29, 10:01 pm, Only-Trouble <[EMAIL PROTECTED]> wrote: > Hi all > I am running openSUSE 10.3 > I am learning python on my own, it seems like  the system has already > installed a python IDLE > The question is how to invoke it? > > Thanks > > Only-Trouble how about executing from the terminal

Re: Function to import module to namespace

John Machin wrote: Good questions. Short answer ... probably 'cause I've not thought the problem though completely :) > You are updating with *everything* in the 'more' module, not just the > functions. This includes such things as __name__, __doc__, __file__. > Could have interesting side-e

Re: problem with internationalized headers in email package

> + An 'encoded-word' MUST NOT appear in any portion of an 'addr-spec'. > + An 'encoded-word' MUST NOT appear within a 'quoted-string'. > + An 'encoded-word' MUST NOT be used in a Received header field. > + An 'encoded-word' MUST NOT be used in parameter of a MIME > Content-Type or Content-Dispos

How to invoke the Python idle

Hi all I am running openSUSE 10.3 I am learning python on my own, it seems like the system has already installed a python IDLE The question is how to invoke it? Thanks Only-Trouble -- http://mail.python.org/mailman/listinfo/python-list

Re: Function to import module to namespace

On Jun 30, 9:52 am, bvdp <[EMAIL PROTECTED]> wrote: > Terry Reedy wrote: > > > > > > > > > > Do you mean something like this? > > > > > >>> math.__dict__.update(string.__dict__) > > >>> dir(math) > > ['Formatter', 'Template', '_TemplateMetaclass', '__builtins__', > > > > I think t

RE: Use of the "is" statement

Maric Michaud wrote: > Le Friday 27 June 2008 18:26:45 Christian Heimes, vous avez écrit : >> Ask yourself if you are interested if f.tell() returns exactly the >> same 0 object ("is") or a number that is equal to 0 ("=="). > > That said, "f.tell() == 0" and "f.tell() != 0" should be written > "f

Re: Function to import module to namespace

Terry Reedy wrote: > > > Do you mean something like this? > >>> math.__dict__.update(string.__dict__) > >>> dir(math) > ['Formatter', 'Template', '_TemplateMetaclass', '__builtins__', I think this is working First off, 2 module files: funcs.py def func1(): print "I'm func1

Re: Function to import module to namespace

Terry Reedy wrote: bvdp wrote: Is it possible to do this from a function: import a module and append the defs in that module to an existing module/namesapce. So, in my code I have something like: # main code import mods def loadmore(n): import_module(n, mods) # end of main this

Re: UnboundLocalError problems

Mr SZ wrote: Hi, I am writing a small script that changes my pidgin status to away when I lock my screen.I'm using the DBUS API for pidgin and gnome-screensaver.Here's the code: #!/usr/bin/env python import dbus, gobject from dbus.mainloop.glib import DBusGMainLoop dbus.mainloop.glib.DBu

Re: Function to import module to namespace

bvdp wrote: Is it possible to do this from a function: import a module and append the defs in that module to an existing module/namesapce. So, in my code I have something like: # main code import mods def loadmore(n): import_module(n, mods) # end of main this will permit the add

Re: using urllib2

I didn't spend a lot of time debugging that code -- I've been using beautiful soup a lot at work lately and really pulled that out of memory at about 2:00 AM a couple days ago. In the 5 minute I spent on it, it appeared that the definitions were setup like so: Blah Definition> I was attempti

Re: list extension ?

Stef Mientki wrote: ... (approximately, I PEP-8'ed it a bit) ... class tGrid_List(list): def __init__(self, value=[]): list.__init__(self, value) # and with this new list component, I can add new attributes on the fly a = tGrid_list([2, 3]) a.New_Attribute = 'some text' # I'm not allow

list extension ?

hello, I basically need a list with a few extra attributes, so I derived a new object from a list, and it works perfect. But I wonder why the newly derived list component is much more flexible ? # so here is the new list object class tGrid_List ( list ) : def __init__ ( self, value = [] ) :

Re: gelato - nvidia and python

On 29 Jun, 17:34, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote: > > >>> dir(r) > > ['__call__', '__class__', '__cmp__', '__delattr__', '__doc__', > '__getattribute__', '__hash__', '__init__', '__module__', '__name__', > '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__self__', > '__setattr

UnboundLocalError problems

Hi, I am writing a small script that changes my pidgin status to away when I lock my screen.I'm using the DBUS API for pidgin and gnome-screensaver.Here's the code: #!/usr/bin/env python import dbus, gobject from dbus.mainloop.glib import DBusGMainLoop dbus.mainloop.glib.DBusGMainLoop(set_as_

Re: Docutils rst2html.py gives Unknown Directive type "toctree"

On Jun 19, 11:19 pm, "Calvin Cheng" <[EMAIL PROTECTED]> wrote: > Hi, > > I am attempting to convert a bunch of .txt files into html using the > docutils package. > > It works for most of the txt files except for the index.txt file which > gives 2 errors: > (1) Unknown Directive type "toctree" > (2

Re: using urllib2

Okay, now I ran in it the shell, and this is what happened: >>> for tabs in soup.findAll('table', {'class': 'luna-Ent'}): ... tabs.findAll('td')[-1].contents[-1].string ... u' ' u' ' u' ' u' ' u' ' u'not complex or compound; single. ' u' ' u' ' u' ' u' ' u' ' u'inconsequential or rudimentary

Re: gelato - nvidia and python

On Jun 29, 5:34 pm, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote: > Did somebody worked with gelato from nvidia and python? > I have some C cod from books nvidia . > This is : > " > GelatoAPI *r = GelatoAPI::CreateRenderer(); > r->Camera ("main"); > ... API calls through r ... > r->Render ("main")

Re: Function to import module to namespace

Le Sunday 29 June 2008 21:08:36 bvdp, vous avez écrit : > Is it possible to do this from a function: import a module and append > the defs in that module to an existing module/namesapce. > > So, in my code I have something like: > > # main code > import mods > > def loadmore(n): > import_module

Function to import module to namespace

Is it possible to do this from a function: import a module and append the defs in that module to an existing module/namesapce. So, in my code I have something like: # main code import mods def loadmore(n): import_module(n, mods) # end of main this will permit the addition of the th

Re: using urllib2

Actually after looking at this, the code is preactically the same, except the definitions. So what COULD be going wrong here? Alexnb wrote: > > Okay, so i've hit a new snag and can't seem to figure out what is wrong. > What is happening is the first 4 definitions of the word "simple" don't > sho

Re: tkinter, loading image error, TclError: couldn't recognize data in image file "C:/users/me/desktop/images/blob4.jpg"

defn noob wrote: from Tkinter import * import os master = Tk() w = Canvas(master, width=800, height=600) print os.path.exists('C:/me/saftarn/desktop/images/blob4.jpg') im = PhotoImage(file = 'C:/users/saftarn/desktop/images/blob4.jpg') #im = file = 'C:/users/me/desktop/images/blob4.jpg' pic

Re: using urllib2

Okay, so i've hit a new snag and can't seem to figure out what is wrong. What is happening is the first 4 definitions of the word "simple" don't show up. The html is basicly the same, with the exception of noun turning into adj. Ill paste the html of the word cheese, and then the one for simple, a

Re: Why is recursion so slow?

On Sun, Jun 29, 2008 at 2:35 PM, Terry Reedy <[EMAIL PROTECTED]> wrote: > > People should read posts to the end before replying, in case it actually > says what one thinks it should, but just in a different order than one > expected. Well, pardon me. -- http://mail.python.org/mailman/listinfo/pyth

Re: Why is recursion so slow?

Dan Upton wrote: On Sun, Jun 29, 2008 at 1:27 AM, Terry Reedy <[EMAIL PROTECTED]> wrote: slix wrote: Recursion is awesome for writing some functions, like searching trees etc but wow how can it be THAT much slower for computing fibonacci- numbers? The comparison below has nothing to do with

Re: C++ or Python

On Sun, 29 Jun 2008 11:20:45 +0200, Sebastian \"lunar\" Wiesner wrote: > Dan Stromberg <[EMAIL PROTECTED]>: > >> things like passing a method as a function parameter is a no-brainer >> (requires extra syntax in java because of the cautious type system - >> not sure about C++). > > C++ has functi

Re: complex numbers should respect the "I" representation

On Jun 29, 8:39 pm, Grant Edwards <[EMAIL PROTECTED]> wrote: > On 2008-06-29, Roy Smith <[EMAIL PROTECTED]> wrote: > > >> I think complex numbers should respect the "i" or "I" > >> representation, instead of "j". No reason being cute and using > >> a different character instead of the traditional >

Re: Beginner's Python development questions

On Jun 29, 12:46 am, "Łukasz Dąbek" <[EMAIL PROTECTED]> wrote: > Hello! > > I'm newcomer to Python development and I have some questions (I didn't > found answers for these): >     1. Some bugs at bugs.python.org are assigned but it didn't changed > for many months (example:http://bugs.python.org/i

Re: using urllib2

On Jun 29, 12:50 pm, Alexnb <[EMAIL PROTECTED]> wrote: > No I figured it out. I guess I never knew that you aren't supposed to split a > url like "http://www.goo\ > gle.com" But I did and it gave me all those errors. Anyway, I had a > question. On the original code you had this for loop: > > for ta

Re: using urllib2

No I figured it out. I guess I never knew that you aren't supposed to split a url like "http://www.goo\ gle.com" But I did and it gave me all those errors. Anyway, I had a question. On the original code you had this for loop: for tabs in soup.findAll('table', {'class': 'luna-Ent'}): yield

Re: Docutils rst2html.py gives Unknown Directive type "toctree"

Getting the same error in the apache logs here, no idea where it's coming from: [Sun Jun 29 18:25:50 2008] [error] :10: (ERROR/3) Unknown directive type "toctree". [Sun Jun 29 18:25:50 2008] [error] [Sun Jun 29 18:25:50 2008] [error] .. toctree:: [Sun Jun 29 18:25:50 2008] [error]:maxdepth: 2

Re: gelato - nvidia and python

On Sun, Jun 29, 2008 at 11:34 AM, [EMAIL PROTECTED] < [EMAIL PROTECTED]> wrote: > Did somebody worked with gelato from nvidia and python? > I have some C cod from books nvidia . > This is : > " > GelatoAPI *r = GelatoAPI::CreateRenderer(); > r->Camera ("main"); > ... API calls through r ... > r->R

gelato - nvidia and python

Did somebody worked with gelato from nvidia and python? I have some C cod from books nvidia . This is : " GelatoAPI *r = GelatoAPI::CreateRenderer(); r->Camera ("main"); ... API calls through r ... r->Render ("main"); delete r; // Finished with this renderer " the code for python i create is only

Re: help debugging noob code - converting binary data to images...

Wonderful, thank you! Will try them out this evening. The image module syntax looks more like what I was expecting than TKinter. All the online drawing examples I found yesterday used TKinter; image was only shown to manipulate pre-made images. Larry -- http://mail.python.org/mailman/listinfo/p

Re: py2exe, PyQT, QtWebKit and jpeg problem

On 6月20日, 下午11时04分, Carbonimax <[EMAIL PROTECTED]> wrote: > hello > > I have a problem with py2exe and QtWebKit : > I make a program with a QtWebKit view. > If I launch the .py directly, all images (jpg, png) are displayed but > if I compile it with py2exe I have only png images. No jpg ! > No erro

Re: Unnormalizing normalized path in Windows

Julien <[EMAIL PROTECTED]> wrote: > In Windows, when a path has been normalized with os.path.normpath, you > get something like this: > > C:/temp/my_dir/bla.txt # With forward slashes instead or backward > slashes. > > Is it possible to revert that? > magic_function('C:/temp/my_dir/bla.t

Re: Why is recursion so slow?

On Sun, 29 Jun 2008 10:03:46 -0400, Dan Upton <[EMAIL PROTECTED]> wrote: On Sun, Jun 29, 2008 at 1:27 AM, Terry Reedy <[EMAIL PROTECTED]> wrote: slix wrote: Recursion is awesome for writing some functions, like searching trees etc but wow how can it be THAT much slower for computing fibonacc

Re: Testing for Null?

On Jun 29, 3:12 am, c0mrade <[EMAIL PROTECTED]> wrote: > Try something like this... > > list = ['lkdfjsldk', None, '', '0', 'slfkjsdlfj', 'lsdgjdlfg', False, True] > for n, it in enumerate(list): >     if not it: print 'Error on this definition' >     else: print '%d. %s' % (n+1, it) > > Results: >

Re: windows installers and license agreement

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Darren Dale wrote: > Is it possible to create a windows installer using distutils that > includes a > prompt for the user to agree to the terms of the license? > > Thanks, > Darren Yeah. In your setup.py script, have it pop up a console window with th

Re: Why is recursion so slow?

On Sun, Jun 29, 2008 at 1:27 AM, Terry Reedy <[EMAIL PROTECTED]> wrote: > > > slix wrote: >> >> Recursion is awesome for writing some functions, like searching trees >> etc but wow how can it be THAT much slower for computing fibonacci- >> numbers? > > The comparison below has nothing to do with re

Unnormalizing normalized path in Windows

Hi, In Windows, when a path has been normalized with os.path.normpath, you get something like this: C:/temp/my_dir/bla.txt # With forward slashes instead or backward slashes. Is it possible to revert that? >>> magic_function('C:/temp/my_dir/bla.txt') 'C:\temp\my_dir\bla.txt' I wonder if ther

Re: complex numbers should respect the "I" representation

On 2008-06-29, Roy Smith <[EMAIL PROTECTED]> wrote: >> I think complex numbers should respect the "i" or "I" >> representation, instead of "j". No reason being cute and using >> a different character instead of the traditional >> representation? > > Ask any electrical engineer what j means. And a

Re: pxssh submit su commands = very very slow

On Jun 29, 4:45 am, Dan Stromberg <[EMAIL PROTECTED]> wrote: > On Sat, 28 Jun 2008 19:08:59 -0700, gert wrote: > > this does the same except 100 times faster ? > > > I don't understand the logic about the prompt, its not the same as the > > output from the bash shell ? > > > [EMAIL PROTECTED]:~# ca

windows installers and license agreement

Is it possible to create a windows installer using distutils that includes a prompt for the user to agree to the terms of the license? Thanks, Darren -- http://mail.python.org/mailman/listinfo/python-list

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Recommended for everyone to an Asian pornographic website，There are many beauty photos and movies.URL: http://www.loioi.com If you need more sites, then contact me. e-mail: [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list

Re: pixel colour on screen

Dennis Lee Bieber wrote: On Sat, 28 Jun 2008 11:47:46 -0700 (PDT), [EMAIL PROTECTED] declaimed the following in comp.lang.python: Could anyone help me, I'm a python noob and need some help. im trying to find some code that will, given a screen co-ordinate, will give me the colour of that pixel

tkinter, loading image error, TclError: couldn't recognize data in image file "C:/users/me/desktop/images/blob4.jpg"

from Tkinter import * import os master = Tk() w = Canvas(master, width=800, height=600) print os.path.exists('C:/me/saftarn/desktop/images/blob4.jpg') im = PhotoImage(file = 'C:/users/saftarn/desktop/images/blob4.jpg') #im = file = 'C:/users/me/desktop/images/blob4.jpg' pic = w.create_image(0, 0

problem with internationalized headers in email package

Hi. From RFC 2047: + An 'encoded-word' MUST NOT appear in any portion of an 'addr-spec'. + An 'encoded-word' MUST NOT appear within a 'quoted-string'. + An 'encoded-word' MUST NOT be used in a Received header field. + An 'encoded-word' MUST NOT be used in parameter of a MIME Content-Type or Cont

Re: What is "@" used for ?

On Jun 29, 3:39 pm, gops <[EMAIL PROTECTED]> wrote: > Hi. > > I am noob in python. while reading some source code I came across , > this funny thing called @ in some function , > > def administrator(method): >     @functools.wraps(method) >     def wrapper(self, *args, **kwargs): >         user = u

Re: help debugging noob code - converting binary data to images...

On Jun 29, 4:47 pm, Lie <[EMAIL PROTECTED]> wrote: > On Jun 29, 11:18 am, [EMAIL PROTECTED] wrote: > > > > > Ok I'm a Python noob, been doing OK so far, working on a data > > conversion program and want to create some character image files from > > an 8-bit ROM file. > > > Creating the image I've g

Re: help debugging noob code - converting binary data to images...

On Jun 29, 11:18 am, [EMAIL PROTECTED] wrote: > Ok I'm a Python noob, been doing OK so far, working on a data > conversion program and want to create some character image files from > an 8-bit ROM file. > > Creating the image I've got down, I open the file and use TK to draw > the images... but > >

Re: HTML Parsing

Stefan Behnel <[EMAIL PROTECTED]>: > [EMAIL PROTECTED] wrote: >> I am trying to build my own web crawler for an experiement and I don't >> know how to access HTTP protocol with python. >> >> Also, Are there any Opensource Parsing engine for HTML documents >> available in Python too? That would be

Re: C++ or Python

Dan Stromberg <[EMAIL PROTECTED]>: > things like passing a method as a function parameter is a no-brainer > (requires extra syntax in java because of the cautious type system - not > sure about C++). C++ has function pointers and functors, therefore this is not really an issue with C++. -- Fre

What is "@" used for ?

Hi. I am noob in python. while reading some source code I came across , this funny thing called @ in some function , def administrator(method): @functools.wraps(method) def wrapper(self, *args, **kwargs): user = users.get_current_user() if not user: if self.req