costart(cofunc, ...) -> generator Starts a cofunction by calling its __cocall__ method and passing along any other supplied arguments. If cofunc is a function defined using the 'codef' keyword, the result is a generator object. Other objects implementing __cocall__ are expected to return an object obeying the iterator protocol. costart returned f got args ('spam', 42) f got kwds {'vehicle': 'hovercraft'} StopIteration tomato Traceback (most recent call last): File "test6.py", line 18, in costart() TypeError: Too few arguments to 'costart'