[issue12424] distutils2: extension section uses bad environment marker separator

[Eli Collins]

Eli Collins <elic at assurancetechnologies.com> added the comment:

I've attached a second revision of my patch to fix this issue (9170231ebf14.diff).

Per Eric Araujo's advice, this patch changes _pop_values() to use ";;" as the environment marker separator for all fields in setupcfg's extension sections. I've also updated the documentation and related unittests.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue12424>
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