Hello world in Python.

hello_wat.py

def function():
  return "Hello"


class FunctionMeta(type):
  def __new__(cls, typename, bases, ns):
    return lambda: "world"


Parent = type.__new__(FunctionMeta, "function", (), {})
function.__mro_entries__ = lambda bases: (Parent,)


class Foo(function):  # <- WAT?
  pass


print(function(), end=" ")
print(Foo())

# See typing.NamedTuple for real-life example