Build a filter func tat takes list ,function as input and returns list of only those items wch pass specified condition in func

Question

l=[1,2,3]
set isEven(number)
if number % 2==0:
return True
return False
filter(l,isEven)-> Returns [2]

Answer 1

Why "build a filter func": in Python a such built-in function is already provided ( just the parameters are inversed )...

l=[1,2,3]
def isEven(number):
return True if number&1==0 else False

print(filter(isEven,l))