Setup script exited with error in Sphinx setup command: Invalid environment marker: python_version<"3.5"
Makefile:123: recipe for target 'bin/python' failed
make: *** [bin/python] Error 1
The command '/bin/sh -c cd /srv/mediagoblin.example.org/mediagoblin && sudo -u mediagoblin make' returned a non-zero code: 2