dollar_operator.py

# Build functions that can be applied with **, mimicing the dollar operator in Haskell
class ApplyableFunc():

    def __init__(self, func):
        self.func = func

    def __call__(self, *args, **kwargs):
        return self.func(*args, **kwargs)

    def __pow__(self, arg):
        return self.func(arg)

len = ApplyableFunc(len)

print(len("Hello"))
print(len ** "Hello")

print = ApplyableFunc(print)

print ** len ** "Hello"