Traceback (most recent call last):


 "runner.py", line 18, in <module>

import gevent


 "/opt/mnemosyne/env/local/lib/python2.7/site-packages/gevent/__init__.py", line 36, in <module>

from gevent.hub import get_hub, iwait, wait


 "/opt/mnemosyne/env/local/lib/python2.7/site-packages/gevent/hub.py", line 8, in <module>

import greenlet
# http://pypi.python.org/pypi/greenlet/
ImportError: /opt/mnemosyne/env/local/lib/python2.7/site-packages/greenlet.so: undefined symbol: _PyTrash_thread_deposit_object


Traceback (most recent call last):


 "<string>", line 3, in <module>


 "setuptools/__init__.py", line 12, in <module>

import setuptools.version


 "setuptools/version.py", line 1, in <module>

import pkg_resources


 "pkg_resources/__init__.py", line 70, in <module>

import packaging.version

ImportError: No module named packaging.version
