[issue14140] packaging tests: add helpers to create and inspect a tree of files

[Éric Araujo]

Changes by Éric Araujo <merwok at netwok.org>:


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resolution:  -> out of date
stage: needs patch -> committed/rejected
status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue14140>
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