Python SSL connection "EOF occurred in violation of protocol"

Question

I'm using Django Celery task to connect to Facebook Graph API with requests lib using Gevent. Issue I'm constantly running at is that every now and then I get EOF occurred in violation of protocol exception. I've searched around and various sources offer different fixes but none seems to work.

I've tried monkey patching the ssl module(gevent.monkey.patch_all()) and some others too but no luck.

I'm not even sure if this is openssl issue as some sources might suggest as I haven't encountered it before applying Gevent optimisation

Connection error: [Errno 8] _ssl.c:504: EOF occurred in violation of protocol Traceback (most recent call last): File "/home/user/workspace/startup/project/events/tasks.py", line 52, in _process_page data = requests.get(current_url) File "/home/user/workspace/startup/env/local/lib/python2.7/site-packages/requests/api.py", line 55, in get return request('get', url, **kwargs) File "/home/user/workspace/startup/env/local/lib/python2.7/site-packages/requests/api.py", line 44, in request return session.request(method=method, url=url, **kwargs) File "/home/user/workspace/startup/env/local/lib/python2.7/site-packages/requests/sessions.py", line 354, in request resp = self.send(prep, **send_kwargs) File "/home/user/workspace/startup/env/local/lib/python2.7/site-packages/requests/sessions.py", line 460, in send r = adapter.send(request, **kwargs) File "/home/user/workspace/startup/env/local/lib/python2.7/site-packages/requests/adapters.py", line 250, in send raise SSLError(e) SSLError: [Errno 8] _ssl.c:504: EOF occurred in violation of protocol 

I'm using latest 1.0rc Gevent version.

Another issue that keeps poping up time to time although URL is correct is: Retrying (5 attempts remain) after connection broken by 'error(2, 'No such file or directory')': /ID/events?limit=5000&fields=description,name,location,start_time,end_time&access_token=TOKEN

Answer 1

Using the forced TLSv1 fix as suggested by J.F Sebastian fixed all the issues I was facing.

Hints for future questions regarding:

• DNSError exception - upgrading Gevent from 0.13.X to 1.0rc fixes this issue

• SSL issues - look at fix in link provided by J.F Sebastian