def run_coroutine_threadsafe(coro, loop):
 ident = loop.__dict__.get('_thread_ident')
 if ((ident is not None) and (ident == threading.get_ident())):
  raise RuntimeError('Cannot be called from within the event loop')
 if (not coroutines.iscoroutine(coro)):
  raise TypeError('A coroutine object is required')
 future = concurrent.futures.Future()
 def callback():
  'Callback to call the coroutine.'
  try:
   _chain_future(ensure_future(coro, loop=loop), future)
  except Exception as exc:
   if future.set_running_or_notify_cancel():
    future.set_exception(exc)
   else:
    _LOGGER.warning('Exception on lost future: ', exc_info=True)
 loop.call_soon_threadsafe(callback)
 return future

def run_coroutine_threadsafe ( coro , loop ) : ident = loop . __dict__ . get ( '_thread_ident' ) if ( ( ident is not None ) and ( ident == threading . get_ident ( ) ) ) : raise RuntimeError ( 'Cannot be called from within the event loop' ) if ( not coroutines . iscoroutine ( coro ) ) : raise TypeError ( 'A coroutine object is required' ) future = concurrent . futures . Future ( ) def callback ( ) : try : _chain_future ( ensure_future ( coro , loop = loop ) , future ) except Exception as exc : if future . set_running_or_notify_cancel ( ) : future . set_exception ( exc ) else : _LOGGER . warning ( 'Exception on lost future: ' , exc_info = True ) loop . call_soon_threadsafe ( callback ) return future
submit a coroutine object to a given event loop .