[issue20884] importlib/__init__.py can not be loaded without __file__ - breaks cxFreeze

[Nick Coghlan]

Nick Coghlan added the comment:

OK, that sounds reasonable. That means I think we need to:

1. add an explicit porting note to the What's New for 3.4.0 final about frozen modules no longer defining __file__

2. fix importlib.__init__ to tolerate freezing again in 3.4.1

3. remove _frozen_importlib.__file__ in 3.4.1 (or 3.5?)

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<http://bugs.python.org/issue20884>
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