Question

I have being using fabric to deploy an app with virtualenv. I was using fabric 1.4 and upgraded to 1.5.1 last week. My script stopped working.

It can’t install the requirements. It seems it’s not activating the virtualenv. In my code, I have:

with cd('%(path)s' % env):
        with prefix('source bin/activate'):
            run('pip install -U distribute')

I’m getting a permission denied error: error: could not delete '/usr/local/lib/python2.7/dist-packages/pkg_resources.py': Permission denied

The command being executed is:

Executed: /bin/bash -l -c "cd /var/www/myproject && source bin/activate && export PATH=\"\\$PATH:\\"/var/www/myproject\\" \" && pip install -U distribute"

If I ssh to the remote machine and run cd /var/www/myproject && source bin/activate && pip install -U distribute, it works just fine.

Why is my fabric script not working?

Thanks in advance

Answer 1

Instead of the serial approach with..

source bin/activate
pip install -U distribute

..directly use the pip executable of the virtualenv:

myenv/bin/pip install -U distribute