What is Call By Value in Python?
In Python, the common way of passing function arguments is through “call by value.” This means that when you pass a variable to a function, you’re essentially handing over the actual value of the variable itself, not the reference to the object it’s pointing to. Consequently, any changes made to the variable within the function don’t directly affect the original variable outside the function. This approach is consistent with the principles of “call by value” and sets it apart from the “call by reference” mechanisms seen in some other programming languages. In simpler terms, the function deals with a copy of the variable’s value, ensuring that the original variable remains unchanged in the broader context of the program.
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.