Key in dictionary
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Checks if the given key exists in a dictionary.
- Use the
in
operator to check ifd
containskey
.
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