Question

终端输出值千言万语，我想

[~] $ python
Python 3.4.3 (default, Jun 22 2016, 16:03:29)
[GCC 4.9.3] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import asyncio
>>> async def fun():
  File "<stdin>", line 1
    async def fun():
            ^
SyntaxError: invalid syntax

Answer 1

Python 3.5中引入了async和await语法。（https://docs.python.org/3/reference/compound_stmts.html#coroutines）

在Python 3.4中，您需要使用@asyncio.coroutine装饰器和yield from语法。（https://docs.python.org/3.4/library/asyncio-task.html#coroutines）

Answer 2

在Python 3.5中添加了async关键字。

Python 3.4.3 asyncio关键字SyntaxError

2 个答案: