What is Call By Reference in Python?
In Python, “call by reference” is a way of handing arguments to functions where the reference to the real object gets passed instead of the object’s actual value. This means that if you make changes to the object within the function, those changes directly affect the original object outside the function. It’s important to highlight that this approach in Python is not the same as the traditional “call-by-reference” used in some other programming languages. Python follows its own model, often called “pass-by-object-reference,” emphasizing the passing of references to objects while maintaining its unique characteristics.
Is Python call by reference or call by value
Python utilizes a system, which is known as “Call by Object Reference” or “Call by assignment”. If you pass arguments like whole numbers, strings, or tuples to a function, the passing is like a call-by-value because you can not change the value of the immutable objects being passed to the function. Passing mutable objects can be considered as call by reference or Python pass by assignment because when their values are changed inside the function, then it will also be reflected outside the function.