Filter function in Python

 The filter() function returns an iterator were the items are filtered through a function to test if the item is accepted or not.

For example :

ages = [5, 12, 17, 18, 24, 32]

def myFunc(x):

  if x < 18:

    return False

  else:

    return True

adults = filter(myFunc, ages)

for x in adults:

  print(x)

Output:

18
24
32

Source : https://www.w3schools.com/python/ref_func_filter.asp