How do I deep copy lists in Python safely and idiomatically?

In Python, a deep copy of a list can be made using the copy module, which ensures that all nested objects are copied as well. This prevents any unintended alterations of the original list when modifying the copied one.

Example of Deep Copying a List:

import copy original_list = [[1, 2, 3], [4, 5, 6]] deep_copied_list = copy.deepcopy(original_list) # Modifying the deep copy deep_copied_list[0][0] = 'Changed' print("Original List:", original_list) print("Deep Copied List:", deep_copied_list)

deep copy Python lists copy module deepcopy nested objects

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