Serhiy Storchaka <[email protected]> added the comment:
I don't think the index in error message is needed. Unlike to str.join() which
accepts arbitrary iterables of arbitrary names, the fromlist usually is a short
tuple.
Interesting, what happen if the fromlist is not a list or tuple?
>>> __import__('encodings', fromlist=iter(('aliases', b'codecs')))
<module 'encodings' from '/home/serhiy/py/cpython/Lib/encodings/__init__.py'>
Import is successful because the iterator was exhausted by "'*' in fromlist".
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<https://bugs.python.org/issue21720>
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