Checks if the given key exists in a dictionary.
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
Sorts the given dictionary by key.
Find the key of the minimum or maximum value in a Python dictionary.
Finds the first key in the provided dictionary that has the given value.
Retrieves the value of the nested key indicated by the given selector list from a dictionary or list.