switch-y thing in python

switch = Switch({
    'foo': lambda x: x+1,
})

switch['foo']('bar')


switch = Switch()

@switch.handles('foo')
def handle_foo(x):
    return x+1

@switch.default()
def handle_others():
    pass

class MyThing(Switch):

    @handles('foo')
    def handles(self, x):
        return x+1

MyThing('foo')('whatever')


class MoarThingz(object):

    switch = Switch()

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

    @switch.handles('foo')
    def handle_foo(self):
        ...

    def dispatch(self, whatever, etc):
        payload = decode(whatever, etc)
        self.switch['foo'](payload)