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key_in_dict python Code Snippet in 2024

dictionarybeginner

Last Updated: 13 May 2024

Checks if the given key exists in a dictionary.

  • Use the in operator to check if d contains key.
def key_in_dict(d, key): return (key in d)
d = {'one': 1, 'three': 3, 'five': 5, 'two': 2, 'four': 4} key_in_dict(d, 'three') # True

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