Marcin Bachry <hegel...@gmail.com> added the comment:
In the libc case you shouldn't give absolute path in CDLL: CDLL('libc.so.6') is
better. You use "/lib/libc.so.6" path, but Python (and ctypes.so) actually uses
something like "/lib/tls/i686/cmov/libc.so.6" - these are two separate
libraries with separate "errno" variables, mapped to different memory regions.
Your call to getxattr modifies errno in the former library, but ctypes
get_errno() fetches value from the latter library.
If I fix CDLL() call, the test works ok for me.
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nosy: +marcin.bachry
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue7760>
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