Hi Congress team, A question for tox testing expert on the Congress team. I'm trying to run the tox tests as described at https://github.com/openstack/congress, specifically the two commands: $ sudo pip install 'tox<1.7' $ tox -epy27 Due to conflicts with the OS-owned python config, I run these under my virtualenv created in the congress repo as: $ cd ~/git/congress $ bin/pip install 'tox<1.7' $ bin/tox -epy27 But in any event (whether I try to run the tox within the virtualenv or not), I get errors such as: c/_cffi_backend.c:15:17: fatal error: ffi.h: No such file or directory What's missing in the setup for running these tests? Note that I have all the config needed to run bash/CLI-based test scripts such as https://git.opnfv.org/cgit/copper/tree/tests/adhoc/dmz01.sh Thanks, Bryan Sullivan -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20160407/b1d851f9/attachment.html>