[issue30534] error message for incorrect call degraded in 3.7

[STINNER Victor]

STINNER Victor added the comment:

Ah, Python 3.6 is not affected:

haypo at selma$ ./python
Python 3.6.1+ (heads/unpack_dict:ba4fb35, May 31 2017, 16:31:51) 
>>> abs(x=5)
TypeError: abs() takes no keyword arguments

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<http://bugs.python.org/issue30534>
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