Haskell-like composition for python functions

composable.py

def composable(func, contains=None):
    class Wrapper:
        @wraps(func)
        def __call__(self, *args, **kwargs):
            return func(*args, **kwargs)
        def __getattr__(self, name):
            if name in locals():
                comp = locals[name]
            elif name in globals():
                comp = globals()[name]
            else:
                raise AttributeError()
            def wrapper(*args, **kwargs):
                return func(comp(*args, **kwargs))
            return composable(wrapper, (contains or []) + [func])
        def __repr__(self):
            contains_str = ', '.join(f.__name__ for f in (contains if contains is not None else []) + [func])
            return '<Composable of [{}]>'.format(contains_str)
    return Wrapper()