Do not crash in "too few arguments" error with anon argument #3313
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gvanrossum
approved these changes
May 3, 2017
test-data/unit/check-functions.test
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| @@ -2039,3 +2039,8 @@ l: List[int] = make_list() | |||
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| bad = make_list() # E: Need type annotation for variable | |||
| [builtins fixtures/list.pyi] | |||
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| [case testAnonymousArgumentError] | |||
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mypy/messages.py
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| @@ -575,7 +575,7 @@ def too_few_arguments(self, callee: CallableType, context: Context, | |||
| msg = 'Missing positional argument' | |||
| else: | |||
| msg = 'Missing positional arguments' | |||
| if callee.name and diff: | |||
| if callee.name and [d for d in diff if d is not None]: | |||
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This could just be if callee.name and any(diff): ... Or if that's too cryptic use any(d is not None for d in diff).
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Heh. Should be all, thanks for the collaborative catch.
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... wow, who'd have thunk I'd get something so simple wrong so many times. |
It's the release pressure. Happens to me all the time. Also, this logic is pretty subtle. And thanks for fixing this under pressure! |
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This should fix #3312