class asyncio.Lock(*, loop=None) Primitive lock objects. A primitive lock is a synchronization primitive that is not owned by a particular coroutine when locked. A primitive lock is in one of two states, ‘locked’ or ‘unlocked’. It is created in the unlocked state. It has two basic methods, acquire() and release(). When the state is unlocked, acquire() changes the state to locked and returns immediately. When the state is locked, acquire() blocks until a call to release() in another coroutine

consumed Total number of to be consumed bytes.

exception asyncio.LimitOverrunError Reached the buffer limit while looking for a separator. consumed Total number of to be consumed bytes.

class asyncio.LifoQueue A subclass of Queue that retrieves most recently added entries first.

asyncio.iscoroutinefunction(func) Return True if func is determined to be a coroutine function, which may be a decorated generator function or an async def function.

asyncio.iscoroutine(obj) Return True if obj is a coroutine object, which may be based on a generator or an async def coroutine.

exception asyncio.InvalidStateError The operation is not allowed in this state.

partial Read bytes string before the end of stream was reached (bytes).

expected Total number of expected bytes (int).

exception asyncio.IncompleteReadError Incomplete read error, subclass of EOFError. expected Total number of expected bytes (int). partial Read bytes string before the end of stream was reached (bytes).