How do I copy a dictionary in Python?

How do I copy a dictionary in Python?

You can copy a dictionary in Python using the copy() method or the dict() constructor. Which method would you like to know more about?

What's the difference between using copy() and dict()?

The copy() method creates a shallow copy of the dictionary, while dict() can create a new dictionary from an existing one. If you modify the copied dictionary, the original remains unchanged.

Can you show me an example of both methods?

Sure! Here's an example:

original = {'a': 1, 'b': 2}
copy1 = original.copy()
copy2 = dict(original)

Both copy1 and copy2 are copies of original.

What if I want to create a deep copy?

For a deep copy, you can use the copy module's deepcopy() function. This will copy nested dictionaries as well.