[issue17901] _elementtree.TreeBuilder raises IndexError on end if constructed with element_factory=None

[Roundup Robot]

Roundup Robot added the comment:

New changeset c430bea30457 by Eli Bendersky in branch '3.3':
Issue #17901: fix TreeBuilder construction for an explicit element_factory=None
http://hg.python.org/cpython/rev/c430bea30457

New changeset e79df5d1f680 by Eli Bendersky in branch 'default':
Issue #17901: fix TreeBuilder construction for an explicit element_factory=None
http://hg.python.org/cpython/rev/e79df5d1f680

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nosy: +python-dev

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue17901>
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