What is the parameter passing mechanism in Python?

Python consists of two parameter passing mechanism named as-

• Pass by references: Every parameter (argument) is passed “by reference” to the functions by default. However, in case you modify the value of the parameter in the function, the impact can also be reflected in the called function.
• Pass by value: The pass by value is that at whatever time you pass the parameters to functions which are of the type such as strings, numbers, tuples. This is due to the immutable nature of them.