How do you check if a key exists in a dictionary in Python?

 You can check if a key exists in a dictionary in Python by using the 'in' Keyword. Here's an example:

Output:

In this example, the 'in' the keyword is used to check if the string 'apple' exists as a key in the 'my_dict' Dictionary. If the key exists, it prints a message saying that the key exists in the dictionary, otherwise it prints a message saying that the key does not exist in the dictionary.