Python filter() Example

filter() is used to iterate through a sequence to check if each object is True or False.

filter() takes two parameters. Function that tests if elements of an iterable return true or false. Iterable which can be set, tuple , or list

Ex.

filter(function , iterable)

In the example below, user input will be filtered to check if it contains a multiple of 2. How it works is a number is inputted into the console and the filter checks if the put value is Ture or False. Learn more about getting User Input here

put = input()

# function that filters 2Xs multiple
def TwoTimes(put):
    twoX = ['2', '4', '6','8' ]

    if(put in twoX):
        return True
    else:
        return False

filtered = filter(TwoTimes, put)

print('Filtered Output :')
for times in filtered:
    print(times)

OutPut:

Filtered Output :
4

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