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Title: A Guide to Copying Variables in Python
Introduction:
In Python, understanding how to create copies of variables is crucial to avoid unexpected behavior when working with mutable objects like lists or dictionaries. This tutorial will explore different methods to make a copy of a variable in Python, covering both shallow and deep copy techniques.
Shallow Copy:
A shallow copy creates a new object, but it does not create copies of the nested objects within the original variable. Instead, it copies references to the nested objects. The copy module provides the copy() function to perform shallow copies.
Deep Copy:
A deep copy creates a new object and recursively creates copies of all nested objects within the original variable. The copy module also provides the deepcopy() function for this purpose.
Slice Copy:
For simple, one-dimensional sequences like lists or tuples, using slicing can create a shallow copy.
Using list() and dict() Constructors:
For lists and dictionaries, using the constructors can create shallow copies.