[Python-Dev] Re: test_file failing on Windows

[Jeremy Hylton]

open_the_file() uses errno to check the return value of fopen().  On
Windows, should it use GetLastError() ?

It seems that errno usually does the right thing on Windows, in that
it's usually set to the expected error when fopen() fails.  The change
I made checks for EINVAL on Unix, which means the mode argument was
invalid.  It looks like Windows sets errno to 0 in this case.  I
wondered if GetLastError() would provide a more helpful error code.

Jeremy