Serhiy Storchaka added the comment:
Here is a patch with smaller (in comparison with issue27358) change for 3.5
that improves error message when pass a non-mapping as second var-keyword
argument.
Unpatched:
>>> f(**{'a': 1}, **[])
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'list' object is not a mapping
>>> f(**{'a': 1}, **0)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'int' object is not iterable
Patched:
>>> f(**{'a': 1}, **[])
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: f() argument after ** must be a mapping, not list
>>> f(**{'a': 1}, **0)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: f() argument after ** must be a mapping, not int
----------
assignee: -> serhiy.storchaka
priority: deferred blocker -> normal
versions: +Python 3.5 -Python 3.6, Python 3.7
Added file:
http://bugs.python.org/file44924/build-map-unpack-with-call-error-messages-3.5.patch
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Python tracker <[email protected]>
<http://bugs.python.org/issue28257>
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