将“requests_html”与“FastAPI”一起使用
将“requests_html”与“FastAPI”一起使用
提问于 2020-12-24 15:39:37
我正在尝试使用带有js渲染和FastAPI的requests_html库
script.py
from fastapi import FastAPI
from requests_html import HTMLSession
app = FastAPI()
@app.get('/')
def func():
with HTMLSession() as session:
r = session.get('https://stackoverflow.com')
r.html.render()
return r.text当使用uvicorn script:app --reload运行并访问http://127.0.0.1:8000/时，我得到以下错误：
...
r.html.render()
File "c:\users\a\appdata\local\programs\python\python37\lib\site-packages\requests_html.py", line 586, in render
self.browser = self.session.browser # Automatically create a event loop and browser
File "c:\users\a\appdata\local\programs\python\python37\lib\site-packages\requests_html.py", line 727, in browser
self.loop = asyncio.get_event_loop()
File "c:\users\a\appdata\local\programs\python\python37\lib\asyncio\events.py", line 644, in get_event_loop
% threading.current_thread().name)
RuntimeError: There is no current event loop in thread 'ThreadPoolExecutor-0_0'.你知道怎样才能让他们一起工作吗？
回答 1
Stack Overflow用户
回答已采纳
发布于 2020-12-24 16:49:50
你必须在Uvicorn中使用AsyncHTMLSession
from fastapi import FastAPI
from requests_html import AsyncHTMLSession
app = FastAPI()
@app.get('/')
async def func():
asession = AsyncHTMLSession()
r = await asession.get('https://stackoverflow.org/')
await r.html.arender()
return r.text页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/65435377
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