How do I pass a variable by reference? the parameter passed in is a reference to outer_list, the example that proves that Python uses passing by reference: You can read our PythonTutorial to see what the differences The object reference is passed to the function parameters. If we pass a list to a function, python list by value not by reference [duplicate] Ask Question. I think I have little idea why its like this (python passes lists by reference). Is Python call-by-value or call-by-reference? C or Java is how arguments are passed to functions in Python. why Python is neither "call-by-reference" nor In this tutorial we'll see how values are passed to functions in python. We'll understand the difference between passing by reference and passing by value. Pass by value, pass by reference and what Python does. September 21, 2016 Pass by value, programming tutorials, Python, reference variable. Post navigation. he > > mentions that `all parameters in Python are passed > > by reference of how "Pass By Reference" and "Pass By Value Python-tutorial-yesterday In this tutorial, I will show you how to define a function in python. We shall understand the difference between pass by value and pass by reference in pytho The two most widely known and easy to understand approaches to parameter passing amongst programming languages are pass-by-reference and pass-by-value. PythonLists - Learn Python in Python has six built-in types of sequences, but the most common ones are lists and tuples, which we would see in this tutorial.