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How to set the python type hinting for a dictionary variable?

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How to set the python type hinting for a dictionary variable?

  1. How to set the python type hinting for a dictionary variable?

    Dict takes two “arguments”, the type of its keys and the type of its values. For a dict that maps strings to integers

  2. set the python type hinting for a dictionary variable

    Dict takes two “arguments”, the type of its keys and the type of its values. For a dict that maps strings to integers

Method 1

Dict takes two “arguments”, the type of its keys and the type of its values. For a dict that maps strings to integers, use

def doSomething(value: Dict[str, int]):

The documentation could probably be a little more explicit, though.

Method 2

Update to answer due to new releases:

Python 3.9 on:

Use lowercase dict in the same method as the accepted answer. typing.Dict and similar upper case generic types which mirror built-ins are deprecated due to PEP 585:

def my_func(value: dict[str, int]):
    pass

Summery

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