how to define and call a python function code example

Example 1: create function in python

def myFunction():
  print('I am running in a function!')

Example 2: what does * mean in python in functions

>>> numbers = [2, 1, 3, 4, 7]
>>> more_numbers = [*numbers, 11, 18]
>>> print(*more_numbers, sep=', ')
2, 1, 3, 4, 7, 11, 18