comp.lang.python Google Group

generation of keyboard events

2009-07-05T15:56:12Z

Hi,
I need to start an external program and pass the keyboard events like
F1,Right arrow key etc to the program..I am trying to use the
subprocess module to invoke the external program. I am able to invoke
but not able to generate the keyboard events and pass them on to the
external progam. Please help me in this because I am a beginner.

Python and webcam capture delay?

2009-07-05T15:26:21Z

Hi,
I'm thinking of using Python for capturing and showing live webcam
stream simultaneously between two computers via local area network.
Operating system is Windows. I'm going to begin with VideoCapture
extension, no ideas about other implementation yet. Do you have any
suggestions on how short delay I should hope to achieve in showing the

Re: Code that ought to run fast, but can't due to Python limitations.

2009-07-05T15:08:23Z

In article <mailman.2639.1246802753.8015. python-l...@python.org>,
Calls to iterators created by generators are indeed faster than an
ordinary Python call, because the stack frame is already mostly set up.

Re: Problems with using queue in Tkinter application

2009-07-05T14:56:26Z

You had it Peter. I tried the "import pydoc pydoc.gui()" in the bug
report you referenced and the same thing described there occurred.
After recompiling tcl/tk with --threads-enabled and replacing the
slackware default packages with those everything is working as I
expected. Thanks for the help.

Re: How Python Implements "long integer"?

2009-07-05T14:30:47Z

I think he means the entry point, problem is that libraries have many.

Re: Code that ought to run fast, but can't due to Python limitations.

2009-07-05T14:25:31Z

2009/7/5 Hendrik van Rooyen <m...@microcorp.co.za>:
A simple solution may be to read the whole input HTML file in a
string. This potentially requires lots of memory but I suspect that
the use case by far most common for this parser is to build a DOM (or
DOM-like) tree of the whole document. This tree usually requires much

Re: How Python Implements "long integer"?

2009-07-05T14:15:11Z

Yes, I'm trying :)
Oh, I didn't see long_as_number before. I'm reading it. That was very
helpful, thanks.
Thank you a million.
I will write your name in my "Specially thanks to" section of my
article (In font size 72) ;)
Pedram

Re: Code that ought to run fast, but can't due to Python limitations.

2009-07-05T14:03:05Z

I agree about the ord(c). However, avoiding the function call
is, I think, right now, in the realms of wishful thinking.
I cannot see how you could avoid a python function call - even if he
bites the bullet and implements my laborious scheme, he would still
have to fetch the next character to test against, inside the current state.

Re: Code that ought to run fast, but can't due to Python limitations.

2009-07-05T13:45:45Z

I am well aware that John is not a newbie.
He was complaining about Python's lack of a case statement
in the context of a state machine.
The point I was trying to make is that, if any state machine
is examined, then, if you examine any one state, the reasons
for leaving it ("state transitions") is always a subset of the

Re: question of style

2009-07-05T13:12:25Z

re is a common source of this type of bug but there are others.
4. Have re.search return a bool and possible matchobject separately:
put_match_here = []
if re.search(pat, s, target=put_match_here):
do_something_with(put_match_he re[0])
or alternatively (cleaner), have a new type of object which supports

Re: How Python Implements "long integer"?

2009-07-05T13:04:11Z

That's shocking. Everyone should be English. :-)
I'd pick one operation (e.g., addition), and trace through the
relevant functions in longobject.c. Look at the long_as_number
table to see where to get started.
In the case of addition, that table shows that the nb_add slot is
given by long_add. long_add does any necessary type conversions

ANN: A new version of the Python module which wraps GnuPG has been released.

2009-07-04T15:12:36Z

A new version of the Python module which wraps GnuPG has been
released.
What Does It Do?
================
The gnupg module allows Python programs to make use of the
functionality provided by the Gnu Privacy Guard (abbreviated GPG or
GnuPG). Using this module, Python programs can encrypt and decrypt
data, digitally sign documents and verify digital signatures, manage

Re: PSP Caching

2009-07-05T12:27:12Z

Thanks Simon,
I got around this behavior by adding "MaxRequestsPerChild 1" (default value
of this is 0) to my httpd.conf to limit the number of requests a child server
process will handle before it dies but I think it is important to keep it 0 in
production environment.
Regards,
Johnson

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2009-07-05T12:39:28Z

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Re: Is code duplication allowed in this instance?

2009-07-05T12:21:33Z

On Sun, Jul 5, 2009 at 5:54 AM, Lawrence
Heavens, no. He's too valuable as a managee.