[issue9856] Change object.__format__(s) where s is non-empty to a TypeError

[Roundup Robot]

Roundup Robot added the comment:

New changeset d91c14788729 by Andrew Svetlov in branch 'default':
Issue #9856: Replace deprecation warinigs to raising TypeError in object.__format__
http://hg.python.org/cpython/rev/d91c14788729

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<http://bugs.python.org/issue9856>
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