目前,我在 Ubuntu 14.04 上运行一个 vagrant 服务器,并使用简单的 python manage.py runserver 0.0.0.0:8000
测试我的所有 django 模块。
因为我通过http://localhost:8000
使用chrome连接到django网络服务器并且服务器在虚拟机上运行,我通过使用 Vagrantfile
中的以下设置进行端口转发
config.vm.network "forwarded_port", guest: 8000, host: 8000
一切正常运行(所有模块/ View /测试均按预期运行),但是,自从我开始使用 grequests
我收到这个奇怪的错误
Exception happened during processing of request from ('10.0.2.2', 63520)
Traceback (most recent call last):
File "/home/vagrant/anaconda3/lib/python3.6/socketserver.py", line 639, in process_request_thread
self.finish_request(request, client_address)
File "/home/vagrant/anaconda3/lib/python3.6/socketserver.py", line 361, in finish_request
self.RequestHandlerClass(request, client_address, self)
File "/home/vagrant/anaconda3/lib/python3.6/socketserver.py", line 696, in __init__
self.handle()
File "/home/vagrant/anaconda3/lib/python3.6/site-packages/django/core/servers/basehttp.py", line 159, in handle
self.raw_requestline = self.rfile.readline(65537)
File "/home/vagrant/anaconda3/lib/python3.6/socket.py", line 586, in readinto
return self._sock.recv_into(b)
File "/home/vagrant/anaconda3/lib/python3.6/site-packages/gevent/_socket3.py", line 385, in recv_into
self._wait(self._read_event)
File "/home/vagrant/anaconda3/lib/python3.6/site-packages/gevent/_socket3.py", line 157, in _wait
self.hub.wait(watcher)
File "/home/vagrant/anaconda3/lib/python3.6/site-packages/gevent/hub.py", line 651, in wait
result = waiter.get()
File "/home/vagrant/anaconda3/lib/python3.6/site-packages/gevent/hub.py", line 899, in get
return self.hub.switch()
File "/home/vagrant/anaconda3/lib/python3.6/site-packages/gevent/hub.py", line 630, in switch
return RawGreenlet.switch(self)
gevent.hub.LoopExit: ('This operation would block forever', <Hub at 0x7f3b777e8af8 epoll pending=0 ref=0 fileno=34>)
请注意,我没有使用 grequests
并且简单地导入即使没有被调用或没有任何东西,它似乎也会导致此错误
大家有什么想法吗?
最佳答案
这是底层依赖项之一 - gevent
的问题,它会覆盖 python 内置函数的默认行为,例如 time
等。
你必须进行猴子补丁。 像这样的东西:
from gevent import monkey
monkey.patch_all()
这是相关的gevent
documentation .
我最近遇到了这个问题 - 因此停止使用 grequests
并实现了我自己的异步请求逻辑
关于python - 使用带有 grequests 的 django 服务器时出现神秘错误,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/43444959/