Qing1998
commented
6 years ago python 版本3.6以上才能在async里面使用yield 参考：https://stackoverflow.com/questions/47376408/why-cant-i-yield-from-inside-an-async-function?noredirect=1&lq=1 3.6以后async里面也不能用yield from，貌似是因为编译起来太费时了。 参考：https://stackoverflow.com/questions/47376408/why-cant-i-yield-from-inside-an-async-function?noredirect=1&lq=1 关于test.py原网页有学员在评论了提供了测试成功的代码 import orm from models import User,Blog,Comment import asyncio
async def test(loop): await orm.create_pool(loop,user='root',password='password',db ='python') u = User(name='Test',email ='test@example.com',passwd='123456',image='about.blank') await u.save()
if name == 'main': loop = asyncio.get_event_loop() loop.run_until_complete(test(loop)) print('Test finished.') loop.close() 但是orm.py里面也有async里面使用yield from的写法，这个我在尝试解决、、等我测试好了分享
jiuxiaxixi
clone工程变切换branch到day4运行以下测试代码 ` import orm from models import User, Blog, Comment
def test(): yield from orm.create_pool(user='www-data', password='www-data', database='awesome')
for x in test(): pass
import orm
File "C:\Users\Administrator\Desktop\github\awesome-python3-webapp\www\orm.py", line 16
__pool = yield from aiomysql.create_pool(
^
SyntaxError: 'yield from' inside async function
`
查了2天资料没找到问题出在哪，不知道是不是python版本的问题
出现了这个错误在windows上，python3.6.2$ python test_model.py Traceback (most recent call last): File "test_model.py", line 1, in