[issue15801] Weird string interpolation behaviour

[Roundup Robot]

Roundup Robot added the comment:

New changeset 2801bf875a24 by Benjamin Peterson in branch '2.7':
use the stricter PyMapping_Check (closes #15801)
http://hg.python.org/cpython/rev/2801bf875a24

New changeset 4d431e719646 by Benjamin Peterson in branch '3.2':
use the stricter PyMapping_Check (closes #15801)
http://hg.python.org/cpython/rev/4d431e719646

New changeset 263d09ce3e9e by Benjamin Peterson in branch 'default':
merge 3.2 (#15801)
http://hg.python.org/cpython/rev/263d09ce3e9e

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nosy: +python-dev
resolution:  -> fixed
stage:  -> committed/rejected
status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue15801>
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