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Fri Feb 10 21:47:26 CET 2006 · https://mail.python.org/pipermail/python-dev/2006-February/060715.html

Scott Dial wrote:
> This begs the question then whether the check that is implemented has 
> any relevance to any platform other than Linux. I am no portability 
> guru, but I have to think there are other platforms where this patch 
> will cause problems.

The patch is right on all platforms conforming to the POSIX standard.
POSIX says that FD_ISSET and friends have undefined behaviour if
the file descriptor is larger than FD_SETSIZE.

For platforms not conforming to the POSIX standard, the patch errs
on the conservative side: it refuses to do something that POSIX
says has undefined behaviour, yet may be well-defined on that
platform.

Disabling this for Windows is fine with me; I also think there should
be some kind of documentation that quickly shows the potential cause
of the exception

Regards,
Martin

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[Python-Dev] Pervasive socket failures on Windows