On Nov 5, 7:40 am, sandipm <[EMAIL PROTECTED]> wrote:
> I did fair amount of programming in python but never used c/c++ as
> mentioned below.
> any good tutorials for using C/C++ to optimize python codebase for
> performance?
> how widely do they use such kind of mixed coding practices?
[...]
Sinc
On Oct 29, 11:26 am, Dick Moores <[EMAIL PROTECTED]> wrote:
> Windows XP Pro, Python 2.5.1
>
> import msvcrt
> while True:
> if msvcrt.kbhit():
> key = msvcrt.getch()
> if key == 'Enter'
> do something
>
> Is there a way to catch the pressing of the 'Enter' key?
Yes
Jon Harrop wrote:
> Filip Wasilewski wrote:
> > Jon Harrop wrote:
> >> Filip Wasilewski wrote:
> >> > Jon, both Python and Matlab implementations discussed here use the
> >> > lifting scheme, while yours is a classic convolution based approach.
> >
Jon Harrop wrote:
> Filip Wasilewski wrote:
> > Jon, both Python and Matlab implementations discussed here use the
> > lifting scheme, while yours is a classic convolution based approach.
>
> I've done both in OCaml. The results are basically the same.
Have you tried
Jon Harrop wrote:
> Filip Wasilewski wrote:
> > Besides of that this code is irrelevant to the original one and your
> > further conclusions may not be perfectly correct. Please learn first
> > about the topic of your benchmark and different variants of wavelet
> > t
Jon Harrop wrote:
[...]
> I first wrote an OCaml translation of the Python and wrote my own
> little "slice" implementation. I have since looked up a C++ solution and
> translated that into OCaml instead:
>
> let rec d4_aux a n =
> let n2 = n lsr 1 in
> let tmp = Array.make n 0. in
> for i=0
sturlamolden wrote:
>
> Actually, there was a typo in the original code. I used d1[l-1] where I
> should have used d1[l+1]. Arrgh. Here is the corrected version, the
> Matlab code must be changed similarly. It has no relevance for the
> performance timings though.
>
>
> def D4_Transform(x, s1=None,
sturlamolden wrote:
[...]
> Here is the correct explanation:
>
> The factorization of the polyphase matrix is not unique. There are
> several valid factorizations. Our implementations corresponds to
> different factorizations of the analysis and synthesis poyphase
> matrices, and both are in a senc
robert wrote:
> I have an integer array with values limited to range(a,b) like:
>
> ia=array([1,2,3,3,3,4,...2,0,1])
>
> and want to speedly count the frequencies of the integers into get a density
> matrix.
> Is this possible without looping?
See numpy.bincount (for integers >= 0) if you mean 'w
sturlamolden wrote:
> Boris wrote:
> > Hi, is there any alternative software for Matlab? Although Matlab is
> > powerful & popular among mathematical & engineering guys, it still
> > costs too much & not publicly open. So I wonder if there's similar
> > software/lang that is open & with comparable
robert wrote:
> I'd like to use multiple CPU cores for selected time consuming Python
> computations (incl. numpy/scipy) in a frictionless manner.
>
> Interprocess communication is tedious and out of question, so I thought about
> simply using a more Python interpreter instances (Py_NewInterprete
Milos Prudek wrote:
> > A better solution would be to extract cookies from headers in the
> > request method and return them with response (see the code below). I
>
> Full solution! Wow! Thank you very much. I certainly do not deserve such
> kindness. Thanks a lot Filip!
Glad to help. All in all t
Milos Prudek wrote:
> > Overload the _parse_response method of Transport in your
> > BasicAuthTransport and extract headers from raw response. See the
> > source of xmlrpclib.py in the standard library for details.
>
> Thank you.
>
> I am a bit of a false beginner in Python. I have written only sho
Milos Prudek wrote:
> I perform a XML-RPC call by calling xmlrpclibBasicAuth which in turn calls
> xmlrpclib. This call of course sends a HTTP request with correct HTTP
> headers. The response is correctly parsed by xmlrpclib, and I get my desired
> values.
>
> However, I also need to get the raw H
Jerry Hill wrote:
> Hello all,
>
> I have a piece of code I could use some help optimizing. What I'm
> attempting to do is periodically grab a screenshot, and search for 2D
> patterns of black pixels in it. I don't care about any color other
> than black. Here's some simple code that simulates m
Jarek Zgoda wrote:
> Filip Wasilewski napisa³(a):
>
> > There is an easy way to build Python extensions on Windows with MinGW
> > and it works fine for me. Just follow these steps:
>
> It was brougt to my attention that mingw-compiled extensions for Python
> 2.4 use oth
Kevin D. Smith wrote:
> I've written a simple Python extension for UNIX, but I need to get it
> working on Windows now. I'm having some difficulties figuring out how
> to do this. I've seen web pages that say that MS Visual Studio is
> required, and other that say that's not true, that MinGW will
Steven D'Aprano wrote:
> On Sat, 24 Jun 2006 05:36:17 -0700, Filip Wasilewski wrote:
>
> > Steven D'Aprano wrote:
> >> On Fri, 23 Jun 2006 02:17:39 -0700, Filip Wasilewski wrote:
> >>
> >> > [EMAIL PROTECTED] wrote:
> >> >
> >
Steven D'Aprano wrote:
> On Fri, 23 Jun 2006 02:17:39 -0700, Filip Wasilewski wrote:
>
> > [EMAIL PROTECTED] wrote:
> >
> >> Logically, I should be able to enter x[-2:-0] to get the last and next to
> >> last characters. However, since Python doesn
[EMAIL PROTECTED] wrote:
> Logically, I should be able to enter x[-2:-0] to get the last and next to
> last characters. However, since Python doesn't distinguish between positive
> and negative zero, this doesn't work. Instead, I have to enter x[-2:].
Hooray! Logically there is no such thing as
sonjaa wrote:
> Hi
>
> last week I posted a problem with running out of memory when changing
> values in NumPy arrays. Since then I have tried many different
> approaches and
> work-arounds but to no avail.
[...]
Based on the numpy-discussion this seems to be fixed in the SVN now(?).
Anyway, you
[EMAIL PROTECTED] wrote:
> Hi all
>
> I am trying to create a lighweight tcp proxy server.
[...]
There is a bunch of nice recipies in the Python Cookbook on port
forwarding. In the [1] and [2] case it should be fairly simple to add
an extra authentication step with pyOpenSSL.
[1] http://aspn.acti
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