A function is a block of code that allows us to reuse the same code whenever we call it.

def my_function():
    print("Hello from Python for researchers tutorial!")

my_function()
# Hello from Python for researchers tutorial!

A function with an argument:

def function1(fname):
    print(fname + " Azad Othman Rasul")

function1("Anas")
# Anas Azad Othman Rasul
function1("Aviar")
# Aviar Azad Othman Rasul
function1("Muhammad")
# Muhammad Azad Othman Rasul

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