check if value in dict python code example

Example 1: python check if value exists in any key

>>> d = {'1': 'one', '3': 'three', '2': 'two', '5': 'five', '4': 'four'}
>>> 'one' in d.values()
True

Example 2: how to know if a key is in a dictionary python

dict = {"key1": 1, "key2": 2}

if "key1" in dict:

Example 3: check if dict key contains specific key and value

if (key, value) in d.items():
	print("yes")

Example 4: python check if false in dict

a_dictionary = {"a": 1, "b": 2}
contains_1 = 1 in a_dictionary.values()
print(contains_1)