本文由 大侠(AhcaoZhu)原创，转载请声明。
链接: https://blog.csdn.net/Ahcao2008

?摘要

• 全文介绍python的 async_timeout 模块（异步 I/O 的超时设置）、函数、类及类的方法和属性。
• 它通过代码抓取并经AI智能翻译和人工校对。
• 是一部不可多得的权威字典类工具书。它是系列集的一部分。后续陆续发布、敬请关注。【原创：AhcaoZhu大侠】

?模块图

async_timeout
	◆asyncio

?类关系图

◆object
	◆BaseException
		◆Exception
			◆EOFError
				◆asyncio.streams.IncompleteReadError
			◆RuntimeError
				◆asyncio.events.SendfileNotAvailableError
			◆asyncio.queues.QueueEmpty
			◆asyncio.queues.QueueFull
			◆asyncio.streams.LimitOverrunError
			◆concurrent.futures._base.Error
				◆asyncio.base_futures.InvalidStateError
	◆_asyncio.Future
		◆_asyncio.Task
	async_timeout.timeout
	◆asyncio.events.AbstractEventLoop
		◆asyncio.base_events.BaseEventLoop
			◆asyncio.proactor_events.BaseProactorEventLoop
				◆asyncio.windows_events.ProactorEventLoop
			◆asyncio.selector_events.BaseSelectorEventLoop
				◆asyncio.windows_events._WindowsSelectorEventLoop
	◆asyncio.events.AbstractEventLoopPolicy
		◆asyncio.events.BaseDefaultEventLoopPolicy
			◆asyncio.windows_events.WindowsProactorEventLoopPolicy
			◆asyncio.windows_events.WindowsSelectorEventLoopPolicy
	◆asyncio.events.AbstractServer
	◆asyncio.events.Handle
		◆asyncio.events.TimerHandle
	◆asyncio.locks.Event
	◆asyncio.locks._ContextManagerMixin
		◆asyncio.locks.Condition
		◆asyncio.locks.Lock
		◆asyncio.locks.Semaphore
			◆asyncio.locks.BoundedSemaphore
	◆asyncio.protocols.BaseProtocol
		◆asyncio.protocols.BufferedProtocol
		◆asyncio.protocols.DatagramProtocol
		◆asyncio.protocols.Protocol
			◆asyncio.streams.FlowControlMixin
				◆asyncio.streams.StreamReaderProtocol
		◆asyncio.protocols.SubprocessProtocol
	◆asyncio.queues.Queue
		◆asyncio.queues.LifoQueue
		◆asyncio.queues.PriorityQueue
	◆asyncio.streams.StreamReader
	◆asyncio.streams.StreamWriter
	◆asyncio.transports.BaseTransport
		◆asyncio.transports.DatagramTransport
		◆asyncio.transports.ReadTransport
			◆asyncio.transports.Transport
		◆asyncio.transports.SubprocessTransport
		◆asyncio.transports.WriteTransport
			◆asyncio.transports.ReadTransport
	◆asyncio.windows_events.IocpProactor

?模块全展开

☘️【async_timeout】

async_timeout, fullname=async_timeout, file=async_timeout_init_.py

?统计

?常量

?bool

1 PY_37 True

?模块

?2 asyncio

asyncio, fullname=asyncio, file=asyncio_init_.py

?3 sys

sys, fullname=sys

?函数

?4 current_task(loop: asyncio.events.AbstractEventLoop) -> ‘asyncio.Task[Any]’

current_task(loop: asyncio.events.AbstractEventLoop) -> ‘asyncio.Task[Any]’, module=async_timeout, line:105 at site-packagesasync_timeout_init_.py

?类

?5 traceback

traceback, traceback, module=builtins

TracebackType(tb_next, tb_frame, tb_lasti, tb_lineno)
创建一个新的traceback对象。

data

1 tb_frame=<member ‘tb_frame’ of ‘traceback’ objects> kind:data type:member_descriptor class:<class ‘traceback’>
2 tb_lasti=<member ‘tb_lasti’ of ‘traceback’ objects> kind:data type:member_descriptor class:<class ‘traceback’>
3 tb_lineno=<member ‘tb_lineno’ of ‘traceback’ objects> kind:data type:member_descriptor class:<class ‘traceback’>
4 tb_next=<attribute ‘tb_next’ of ‘traceback’ objects> kind:data type:getset_descriptor class:<class ‘traceback’>

?6 async_timeout.timeout

timeout, async_timeout.timeout, module=async_timeout, line:13 at site-packagesasync_timeout_init_.py

超时上下文管理器。
当您想要在代码块周围应用超时逻辑或在 asyncio.wait_for 并不合适。例如:
    >>> with timeout(0.001):
    ...     async with aiohttp.get('https://github.com') as r:
    ...         await r.text()
    timeout - 以秒为单位的值或None来禁用超时逻辑循环
    loop - 兼容的事件循环

property

1 expired=<property object at 0x000001C17F000138> kind:property type:property class:<class ‘async_timeout.timeout’>
2 remaining=<property object at 0x000001C17F0BD908> kind:property type:property class:<class ‘async_timeout.timeout’>

?剩余

7 doc
8 loader <_frozen_importlib_external.SourceFileLoader object at 0x000001C17EFC1108>
9 spec ModuleSpec(name=‘async_timeout’, loader=<_frozen_importlib_external.SourceFileLoader object at 0x000001C17EFC1108>, origin=‘…libsite-packagesasync_timeoutinit.py’, submodule_search_locations=[‘…libsite-packagesasync_timeout’])
10 Optional typing.Optional
11 Type typing.Type
12 Any typing.Any

☘️【asyncio】

asyncio, fullname=asyncio, file=asyncio_init_.py

☘️【sys】

sys, fullname=sys