python3 optional code example
Example: python optional parameters
def my_func(a = 1, b = 2, c = 3):
print(a + b + c)
my_func()
#OUTPUT = 6
my_func(2)
#This changes the value of a to 2
#OUTPUT = 7
my_func(c = 2)
#This changes the value of c to 2
#OUTPUT = 5