Modifying a Dictionary

You can modify dictionaries by adding, changing, or removing key-value pairs:

Adding key-value pairs

  my_dict = {'name': 'Alice', 'age': 30, 'city': 'New York'}

# Adding a new key-value pair
my_dict["email"] = "alice@example.com"
print(my_dict)  # Output: {'name': 'Alice', 'age': 30, 'city': 'New York', 'email': 'alice@example.com'}

Changing an existing value

This example illustrates how to modify a value associated with a key.

  my_dict["age"] = 31
  print(my_dict)  # Output: {'name': 'Alice', 'age': 31, 'city': 'New York', 'email': 'alice@example.com'}

Removing a key-value pair

  del my_dict["city"]
  print(my_dict)  # Output: {'name': 'Alice', 'age': 31, 'email': 'alice@example.com'}