gnu: Add python-pygments. * gnu/packages/python.scm (python-pygments, python2-pygments): New variables.
gnu: Add python-docutils. * gnu/packages/python.scm (python-docutils, python2-docutils): New variables.
gnu: Add python-jinja2. * gnu/packages/python.scm (python-jinja2, python2-jinja2): New variables.
gnu: Add python-markupsafe. * gnu/packages/python.scm (python-markupsafe, python2-markupsafe): New variables.
gnu: Add python-virtualenv. * gnu/packages/python.scm (python-virtualenv, python2-virtualenv): New variables.
gnu: Add python-itsdangerous. * gnu/packages/python.scm (python-itsdangerous, python2-itsdangerous): New variables.
gnu: Add python-oauthlib. * gnu/packages/python.scm (python-oauthlib, python2-oauthlib): New variables.
gnu: Add python-pyjwt. * gnu/packages/python.scm (python-pyjwt, python2-pyjwt): New variables.
gnu: Add python-discover. * gnu/packages/python.scm (python-discover, python2-discover): New variables.
gnu: Add python-coverage. * gnu/packages/python.scm (python-coverage, python2-coverage): New variables.
gnu: Add python-testrepository. * gnu/packages/python.scm (python-testrepository, python2-testrepository): New variables.
gnu: Add python-fixtures. * gnu/packages/python.scm (python-fixtures, python2-fixtures): New variables.
gnu: Add python-subunit. * gnu/packages/python.scm (python-subunit, python2-subunit): New variables.
gnu: Add python-testresources. * gnu/packages/python.scm (python-testresources, python2-testresources): New variables.
gnu: Add python-testscenarios. * gnu/packages/python.scm (python-testscenarios, python2-testscenarios): New variables.
gnu: Add python-testtools. * gnu/packages/python.scm (python-testtools, python2-testtools): New variables.
gnu: Add python-scripttest. * gnu/packages/python.scm (python-scriptest, python2-scripttest): New variables.
gnu: Add python-pytest. * gnu/packages/python.scm (python-pytest, python2-pytest): New variables.
gnu: Add python-py. * gnu/packages/python.scm (python-py, python2-py): New variables.
gnu: Add python-unittest2. * gnu/packages/python.scm (python-unittest2, python2-unittest2): New variables.