# https://github.com/blueloveTH/pocketpy/issues/37

mp = map(lambda x:  x**2, [1, 2, 3, 4, 5]  )
assert list(mp) == [1, 4, 9, 16, 25]


assert not 3>4

def f(x):
    if x>1:
        return 1

assert f(2) == 1
assert f(0) == None