[issue3440] Starting any program as a subprocess fails when subprocess.Popen has env argument

[Paul Morelle]

Paul Morelle <madprog at htkc.org> added the comment:

I have just figured out that if you initialize env with
os.environ.copy() and then add/modify its components, then the bug
disappears:

env = os.environ.copy()
env['FOO'] = 'BAR'
[…]

But I have no idea (for the moment) of which variable is mandatory or not.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue3440>
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