[issue30534] error message for incorrect call degraded in 3.7

[STINNER Victor]

STINNER Victor added the comment:

> Note that some error messages are "takes no keyword arguments", but others are "does not take keyword arguments" or "doesn't take keyword arguments".

We already have a _PyArg_NoKeywords() function. Maybe we could add a new _PyErr_NoKeywords() function which would just raise the error?

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue30534>
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