The Python DLL (python25.dll) is installed by default in your WINDOWS\System32 directory. If it is not there, look in your Python root directory, or the Python DLLs subdirectory. If you can't find it, your Python is most likely not actually installed.

The current Windows float installer is http://downloads.sourceforge.net/csound/Csound5.07.2-win32-f.exe. If you have an earlier version, the PortAudio DLL may not work; in 5.07.0 it was misnamed and also required the MSVC 8.0 runtime library. These problems are corrected in 5.07.2 (note the incremental version number).

I just now downloaded and installed the float version of Csound5.07.2 on my computer at work. I found that Python is not a problem (it was already installed on my computer) and that PortAudio works.

However, there IS a problem. Just selecting PortAudio and then enabling the Realtime I/O option on the main window of csound5gui does NOT work. There seems to be a problem with the buffer sizes not being consistent for full-duplex operation (which appears to be the default).

Fortunately, I was able to get csound5gui to play in real time with PortAudio. I un-enabled the Realtime I/O option, and then I manually typed 'dac' as the output. Probably, this disabled the sound card input and resulted in a proper buffer size.

It may be that you can find a combination of settings that will work with PortAudio and csound5gui on your computer with your sound card, perhaps by doing what I did, or by manually specifying the input buffer size, or it may be that there is a bug in csound5gui.

Hope this helps,
Mike

-----Original Message-----
>From: Art Hunkins 
>Sent: Dec 13, 2007 12:42 PM
>To: csound-devel@lists.sourceforge.net
>Subject: [Cs-dev] Finding Python25.dll
>
>Mike  G. -
>
>I'm concerned that when I run either CsoundGUI or Winsound (from current
>Windows float installer in WinXP) I get error messages about Python25.dll
>not being found - and a similar message regarding FluidSynth and
>Python25.dll. This in spite of the facts that: 1) I've requested (during
>installation) that Python 2.5 be installed; 2) that it is installed (from
>.msi); and 3) that PYTHONPATH (environment variable) now indicates
>Csound5.07/bin. However, python25.dll is nowhere to be found on my system,
>most notably not in /bin. That location finds several files with .py
>extension, but a search for "python" in a filename turns up nothing.
>
>Neither Winsound nor CsoundGUI are giving the realtime performances I
>expect (no sound), and I suspect that the Python issue is *not* responsible.
>Nonetheless, I'd like to be sure. Any idea what is happening here? And has
>the bothersome console warning regarding python not being found when it has
>purposefully not been installed ever been dealt with?
>
>Art Hunkins 
>
>
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