[issue12190] intern filenames in bytecode

[Roundup Robot]

Roundup Robot <devnull at devnull> added the comment:

New changeset 27359a4e0f8c by Benjamin Peterson in branch 'default':
try to use the same str object for all code filenames when compiling or unmarshalling (#12190)
http://hg.python.org/cpython/rev/27359a4e0f8c

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nosy: +python-dev

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<http://bugs.python.org/issue12190>
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