In this example, you will learn to check if a key is present in a dictionary.
To understand this example, you should have the knowledge of the following Python programming topics:
Using in keyword
my_dict = {1: 'a', 2: 'b', 3: 'c'}
if 2 in my_dict:
print("present")
Output
present
Using if statement and in keyword, you can check if a key is present in a dictionary.
In the above example, 2 is present in the dictionary as a key; therefore, the output is present.
You can use not in if you want to check if a key is not present in the dictionary.
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