[issue7774] sys.executable: wrong location if zeroth command argument is modified.

[Florent Xicluna]

Florent Xicluna <florent.xicluna at gmail.com> added the comment:

Actually there's 3 steps to fix this:
1) do not absolutize the sys.executable if it is empty (in Modules/getpath.c)
2) change sysconfig.py to deal with empty sys.executable (see this patch)
3) do a best effort to provide a valid sys.executable.
   It should be possible in most cases.

See message above for details on (3):
http://bugs.python.org/issue7774#msg98284

Patch attached for (2). (Fixes tests)

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keywords: +patch
Added file: http://bugs.python.org/file16521/issue7774_sysconfig.diff

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