[issue20942] _frozen_importlib should not have a __file__ attribute

[Eric Snow]

Eric Snow added the comment:

As I've thought about it, I've gone from -0 to +1 on applying this to both 3.4 and 3.5.  The bug and fix should impact very little* code.  In fact, I doubt anyone would have noticed if Nick hadn't. :)  It would be nice to have this right in 3.4.

* Effectively this is limited to consumers of imp.init_frozen(), PyImport_ImportFrozenModule(), and PyImport_ImportFrozenModule().  That includes importing frozen importlib and Py_FrozenMain().

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue20942>
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