Python - Dictionary Methods Part 4: Copying and Comparing Dictionaries

These methods focus on replicating or comparing dictionaries.

Methods and Examples

copy() Method Creates a shallow copy of the dictionary.

my_dict = {"name": "Alice", "age": 26}

new_dict = my_dict.copy()

print(new_dict)  # Output: {'name': 'Alice', 'age': 26}

Explanation: copy() ensures that the original dictionary remains unchanged.

Comparison Operators Compare dictionaries for equality.

another_dict = {"name": "Alice", "age": 26}

print(my_dict == another_dict)  # Output: True

Explanation: Dictionaries are equal if they have identical keys and values.

Checking Subset or Superset

print(all(key in my_dict for key in another_dict))  # Output: True

Explanation: Use logical checks to identify subsets.