Tutorial Python 2.7: Filter Function with example

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Filters In Python:
Filter function filters the iterables means it will return those items on which the given condition is true

Code:

#program to print each even number of list
mylist = [1,2,3,4,5,6,7,8,9]
mylist = list(filter(lambda x: x%2==0, mylist))
print(mylist)

It is not necessary to use lambda functions; you can also create your own functions and call them as  an argument in the filter function just like this.

Code:

mylist = [1,2,3,4,5,6,7,8,9]
def greaterThan(num):
    return num > 5
list_2 = list(filter(greaterThan,mylist))
print(list_2)

But using lambda functions make it easy to write code and readable.

Note: We use filters with iterables like list, tuple etc..