[issue33669] str.format should raise exception when placeholder number doesn't match argument number

[Serhiy Storchaka]

Serhiy Storchaka <storchaka+cpython at gmail.com> added the comment:

If issue28308 be implemented, it may be that the Python compiler itself will emit a warning.

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue33669>
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