问题
i am building a new amazon instance with python 2.7.10 as default. after i have ran my machine provisioning scripts and the moment of truth arrives, celery gave me an import so i debugged the problem to billard.
the package appears to be in the correct path i.e.
sudo find -name "billiard"
./srv/ia-live/lib64/python2.7/dist-packages/billiard
where ia-live is the path of my virtualenv. checking the path in via python virtualenv executable
import sys
sys.path
['',
'/srv/ia-live/bin',
'/srv/ia-live/src/django-devserver-redux-master',
'/usr/lib/python2.7',
'/srv/ia-live/local/lib64/python2.7/site-packages',
'/srv/ia-live/local/lib/python2.7/site-packages',
'/srv/ia-live/lib64/python2.7',
'/srv/ia-live/lib/python2.7',
'/srv/ia-live/lib64/python2.7/site-packages',
'/srv/ia-live/lib/python2.7/site-packages',
'/srv/ia-live/lib64/python2.7/lib-dynload',
'/srv/ia-live/local/lib/python2.7/dist-packages',
'/srv/ia-live/local/lib/python2.7/dist-packages',
'/srv/ia-live/lib/python2.7/dist-packages',
'/usr/lib64/python2.7',
'/usr/lib/python2.7',
'/srv/ia-live/local/lib/python2.7/dist-packages/IPython/extensions',
'/home/ec2-user/.ipython']
which appears to be correct, but when i do
import billiard
ImportError: No module named billiard
i don't understand why there could be problem
回答1:
i was able to identify the problem. It is with the default python27 virtualenv and devel packages that comes with ec2-ami
for me, i had to update the system pip and system virutalenv
using
sudo -i
pip install --upgrade pip
pip install --upgrade virtualenv
and the i hard ran /usr/bin/virtualenv to create a new virtualenv. it solved the problem for me.
hope it helps somebody else too.
来源：https://stackoverflow.com/questions/33661818/python-virtualenv-importerror-with-celery-and-billiard