[issue18307] Relative path in co_filename for zipped modules

[Vitaly Murashev]

Change by Vitaly Murashev <murashev_vitaly at mail.ru>:


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versions: +Python 2.7, Python 3.7, Python 3.8 -Python 3.3, Python 3.4

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue18307>
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