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Showing posts with label
swap
.
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Showing posts with label
swap
.
Show all posts
Thursday, April 1, 2010
Python: Swapping the keys and values of a dictionary
A function to swap the keys and immutable values of a dictionary.
def swap_dict(a_dict):
return {val:key for key, val in a_dict.items()}
Example of usage:
>>> print(swap_dict({1: 'a', 2: 'b', 3: 'c'}))
{'a': 1, 'c': 3, 'b': 2}
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