[Python-Dev] Replacing PyWin32's PeekNamedPipe, ReadFile, and WriteFile

[Eric Pruitt]

Hello,

I have written replacements for a few of Mark Hammond's PyWin32 functions
using ctypes to call upon the Windows kernel API. Code can be found here;
http://pastebin.com/m46de01f . When calling ReadFile, it appears that the
kernel API converts '/n' newlines '/r/n' newlines. I have not been able to
find any information about this but as far as I can tell, there is nothing
in my code that is causing the problem. Initially I suspected it related to
newline translation but the function in subprocess.Popen for translating
newlines only converts to '/n' newlines. When I replaced my ReadFile and
WriteFile functions with the PyWin32 functions I was imitating, the problem
still arose. I was hoping someone could confirm this problem for me from
experience or by testing out my code. If you would like the see the
functions used in full context, I have a Mercurial Google Code project that
can be checked out at
http://code.google.com/p/subprocdev/source/list(branch "python3k"). My
work entails modifications to subprocess.py so when
running the code, please update your PYTHONPATH variable so that my
subprocess.py will be imported.

Eric
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