Hi, Barbican has a plugin called dogtag[1]. This plugin imports "pki". While I tried to add pki as an extras requirement[2] I realized that it's dogtag-pki[3] that is required and not pki[4]. Using pki leads to an import error because there is code from dogtag-pki needed that is not in pki. So I started to look into dogtag-pki and wanted to add it to the global requirements repository but while doing that I realized that dogtag-pki's license is GPLv2. And according to[5] this is incompatible. How to handle this? Should the dogtag plugin be removed from barbican's source tree? Best, Tom [1] http://git.openstack.org/cgit/openstack/barbican/tree/barbican/plugin/dogtag.py [2] https://review.openstack.org/#/c/344232/ [3] https://pypi.python.org/pypi/dogtag-pki [4] https://pypi.python.org/pypi/pki [5] http://governance.openstack.org/reference/licensing.html