Rooba
/
cpython
mirror of https://github.com/python/cpython.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

GH-83901: Improve Signature.bind error message for missing keyword-only params (#95347) 

Fixes GH-83901
This commit is contained in:
Frazer McLean 2022-10-08 00:24:17 +02:00 committed by GitHub
parent 5eaf4d6101
commit f4f8133387
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 9 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
Lib/inspect.py
View File

@ -3102,8 +3102,12 @@ def _bind(self, args, kwargs, *, partial=False):
parameters_ex = (param,)
break
else:
msg = 'missing a required argument: {arg!r}'
msg = msg.format(arg=param.name)
if param.kind == _KEYWORD_ONLY:
argtype = ' keyword-only'
else:
argtype = ''
msg = 'missing a required{argtype} argument: {arg!r}'
msg = msg.format(arg=param.name, argtype=argtype)
raise TypeError(msg) from None
else:
# We have a positional argument to process

3
Lib/test/test_inspect.py
View File

@ -3898,7 +3898,8 @@ def test(foo, *, bar):
self.call(test, 1, bar=2, spam='ham')
with self.assertRaisesRegex(TypeError,
"missing a required argument: 'bar'"):
"missing a required keyword-only "
"argument: 'bar'"):
self.call(test, 1)
def test(foo, *, bar, **bin):

1
Misc/NEWS.d/next/Library/2022-07-27-19-47-51.gh-issue-83901.OSw06c.rst Normal file
View File

@ -0,0 +1 @@
Improve :meth:`Signature.bind <inspect.Signature.bind>` error message for missing keyword-only arguments.