class Foo:
    def __init__(self):
        self.val = 42
    def __lt__(self, o):
        print('call lt',o)
        if isinstance(o,(int,float)):
            return self.val < o
        return NotImplemented
    def __le__(self, o):
        print('call le',o)
        if isinstance(o,(int,float)):
            return self.val <= o
        return NotImplemented
    def __gt__(self, o):
        print('call gt',o)
        if isinstance(o,(int,float)):
            return self.val > o
        return NotImplemented
    def __ge__(self, o):
        print('call ge',o)
        if isinstance(o,(int,float)):
            return self.val >= o
        return NotImplemented

print(Foo() < 43)
print(Foo() > 43)
print(Foo() > 41)
print(Foo() < 41)
print(Foo() >= 41)
print(Foo() >= 42)
print(Foo() <= 43)
print(Foo() <= 42)
print('---')
print(43 > Foo())
print(43 < Foo())
print(41 < Foo())
print(41 > Foo())
print(41 <= Foo())
print(42 <= Foo())
print(43 >= Foo())
print(42 >= Foo())