Error: class uri 'gevent' invalid or not
[Traceback (most recent call
File "/usr/lib/python2.7/site-packages/gunicorn/util.py", line 139, in
mod = import_module('.'.
File "/usr/lib/python2.7/importlib/__init__.py", line 37, in
__import__(name)
__import__(name)
File "/usr/lib/python2.7/site-packages/gunicorn/workers/ggevent.py", line 24, in
from gevent.server import
File "/usr/lib/python2.7/site-packages/gevent/server.py", line 6, in
from gevent.socket import EWOULDBLOCK,
File "/usr/lib/python2.7/site-packages/gevent/socket.py", line 659, in
from gevent.ssl import sslwrap_simple as ssl, SSLError as sslerror, SSLSocket as
File "/usr/lib/python2.7/site-packages/gevent/ssl.py", line 386, in
def get_server_certificate(addr, ssl_version=PROTOCOL_SSLv3,
NameError: name 'PROTOCOL_SSLv3' is not
]
]