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Python Exercise: Check if a given key already exists in a dictionary

Python dictionary: Exercise-4 with Solution

Write a Python program to check if a given key already exists in a dictionary.

Sample Solution:-

Python Code:

d = {1: 10, 2: 20, 3: 30, 4: 40, 5: 50, 6: 60}
def is_key_present(x):
  if x in d:
      print('Key is present in the dictionary')
  else:
      print('Key is not present in the dictionary')
is_key_present(5)
is_key_present(9)

Sample Output:

Key is present in the dictionary                                                                              
Key is not present in the dictionary

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