[issue17636] Modify IMPORT_FROM to fallback on sys.modules

[Kristján Valur Jónsson]

Kristján Valur Jónsson added the comment:

Like I mentioned on python-dev, it worries me a bit that this could be considered "unexpected", i.e. when there is a conflict between a legitimage attribute member of a module, and a submodule of the same name.

Also, I wonder if this isn't a bigger change to the import mechanism, than simply:
| Another would be
| to always require an 'as' clause in this case, so that you would have 
| to write'
|    import .foo as foo
which would possibly only require a change to the syntax.

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nosy: +kristjan.jonsson

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<http://bugs.python.org/issue17636>
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