[issue18362] Make build_cpython.py from dev-in-a-box work outside of a box

[Brett Cannon]

Brett Cannon added the comment:

changeset fe1c35cbc9a0

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resolution:  -> fixed
stage: needs patch -> committed/rejected
status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18362>
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