[issue33967] functools.singledispatch: Misleading exception when calling without arguments

[Serhiy Storchaka]

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

The purpose of using assertRaisesRegexp() was testing the error message. assertRaises() doesn't do this. Needed to restore the appropriate assertion method, but using a non-deprecated alias: assertRaisesRegex().

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nosy: +serhiy.storchaka
resolution: fixed -> 
stage: resolved -> needs patch
status: closed -> open

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<https://bugs.python.org/issue33967>
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