Irit Katriel <iritkatr...@gmail.com> added the comment:
Reproduced on 3.11.
>>> x = {None: ''}
>>> ''.format(**x)
''
>>> '{x}'.format(**x)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
KeyError: 'x'
----------
components: +Library (Lib)
nosy: +iritkatriel
versions: +Python 3.11 -Python 3.5, Python 3.6, Python 3.7
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue39694>
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