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Fix typo in TypeVar docstring (#8142)

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"can be used do declare" → "can be used to declare"
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João D. Ferreira 2018-07-07 16:41:20 +01:00 • committed by Ivan Levkivskyi
parent 2800dcf656
commit 86bfed372b
1 changed files with 1 additions and 1 deletions
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Lib/typing.py
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@ -509,7 +509,7 @@ class TypeVar(_Final, _Immutable, _root=True):
At runtime, isinstance(x, T) and issubclass(C, T) will raise TypeError. At runtime, isinstance(x, T) and issubclass(C, T) will raise TypeError.
Type variables defined with covariant=True or contravariant=True Type variables defined with covariant=True or contravariant=True
can be used do declare covariant or contravariant generic types. can be used to declare covariant or contravariant generic types.
See PEP 484 for more details. By default generic types are invariant See PEP 484 for more details. By default generic types are invariant
in all type variables. in all type variables.