gistfile1.txt

Error: class uri 'gevent' invalid or not found: 

[Traceback (most recent call last):
  File "/root/venvs/project1/local/lib/python2.7/site-packages/gunicorn-19.1.1-py2.7.egg/gunicorn/util.py", line 139, in load_class
    mod = import_module('.'.join(components))
  File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
  File "/root/venvs/project1/local/lib/python2.7/site-packages/gunicorn-19.1.1-py2.7.egg/gunicorn/workers/ggevent.py", line 22, in <module>
    raise RuntimeError("You need gevent installed to use this worker.")
RuntimeError: You need gevent installed to use this worker.
]