Reverse / invert a dictionary mapping

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一整个雨季
一整个雨季 2020-11-21 11:47

Given a dictionary like so:

my_map = {\'a\': 1, \'b\': 2}

How can one invert this map to get:

inv_map = {1: \'a\', 2: \'b\'         


        
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  •  闹比i
    闹比i (楼主)
    2020-11-21 11:57

    I would do it that way in python 2.

    inv_map = {my_map[x] : x for x in my_map}
    

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