[issue16309] "PYTHONPATH=" different from no PYTHONPATH at all

[Armin Rigo]

Armin Rigo added the comment:

Grrr, ok, I have an "alias ls='/bin/ls'".  It seems that both "PATH=" and "unset PATH" are equivalent to "PATH=.".  This is behavior that we cannot add to PYTHONPATH, I fear, because so far "." is not implicitly included if PYTHONPATH is not set.  Or if we do it's a big change, not just an internal fix...

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue16309>
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