write a function once as a coroutine and easily get blocking version or kick off a Future

handy_coroutine_decorator.py

import asyncio

def wrap_coroutine(coroutine):
    def future(*a, **kw):
        return asyncio.ensure_future(coroutine(*a, **kw))
    def sync(*a, **kw):
        return asyncio.get_event_loop().run_until_complete(coroutine(*a, **kw))
    coroutine.sync = sync
    coroutine.future = future
    return coroutine

### example

@wrap_coroutine
async def coroutine():
    await asyncio.sleep(1)
    return 'result'

coroutine() # a coroutine -- execution is deferred
coroutine.future() # a future -- execution starts now
coroutine.sync() # blocks until execution is complete