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qsnow6
V2EX  ›  Python

Python 协程 BUG?

  •  
  •   qsnow6 · Feb 10, 2017 · 3238 views
    This topic created in 3554 days ago, the information mentioned may be changed or developed.

    参照aiohttp 官网的教程,写了个示例,发现语法报错。

    import asyncio
    import aiohttp
    async with aiohttp.ClientSession() as session:
        async with session.get('https://api.github.com/events') as resp:
            print(resp.status)
            print(await resp.text())
    -------------
      File "/Users/zed/PycharmProjects/example/used_aiohttp/1.py", line 3
        async with aiohttp.ClientSession() as session:
                 ^
    SyntaxError: invalid syntax
    

    现在是不支持这样的写法了吗

    async with xxxxx as xxxx:
        pass
    
    11 replies  •  2017-02-10 11:11:06 +08:00
    freestyle
    freestyle
    Feb 10, 2017
    1
    得用 async def xxx(): 包起来
    qsnow6
    qsnow6
    OP
    Feb 10, 2017
    3
    @freestyle 包起来是可以的
    但是看官网的示例是这么写的,还以为是我的姿势不对。。
    qsnow6
    qsnow6
    OP
    Feb 10, 2017
    4
    qsnow6
    qsnow6
    OP
    Feb 10, 2017
    5
    ![]( )
    qsnow6
    qsnow6
    OP
    Feb 10, 2017
    6
    ![]( )
    ?
    qsnow6
    qsnow6
    OP
    Feb 10, 2017
    7
    ![]( )
    a87150
    a87150
    Feb 10, 2017
    8
    ```
    import asyncio
    import aiohttp

    async def fetch():
    async with aiohttp.ClientSession() as session:
    async with session.get('https://api.github.com/events') as r:
    print(r.status)
    print(await r.text())

    loop = asyncio.get_event_loop()
    loop.run_until_complete(fetch())
    loop.close()
    ```
    我估计官网是默认你会用 asyncio
    a87150
    a87150
    Feb 10, 2017
    9
    原来回复不能用 markdown
    LukeXuan
    LukeXuan
    Feb 10, 2017 via Android
    10
    其实我觉得挺需要一个 apython 直接在 async def 环境内执行. py 文件
    chy373180
    chy373180
    Feb 10, 2017
    11
    要写在 async def 内
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