give default value to variable in python code example

Example 1: how to set a default parameter in python

def my_function(num1,num2=0):		#if num2 is not given, it will default it to zero
  return num1 + num2

print(my_function(1,2))				#prints out 3
print(my_function(4))				#prints out 4 since num2 got defaulted to 0

Example 2: python default function value

def munge(sep: AnyStr = None): ...
def munge(input: AnyStr, sep: AnyStr = None, limit=1000): ...