[LOCI] Failed to build Trove image

The command I am using: docker build . \ --build-arg FROM=loci-base:ubuntu \ --build-arg PYTHON3=yes \ --build-arg PROJECT=trove \ --tag loci-trove:ubuntu The error: http://paste.openstack.org/show/791311/ Then I changed pydep.txt: uwsgi [!trove] and ran again, another error occured: http://paste.openstack.org/show/791313/ However, if removed '--build-arg PYTHON3=yes' in the command (even without modifying pydep.txt), the image could be built sucessfully. Does LOCI support to build Python 3 image or I did something wrong? - Best regards, Lingxian Kong Catalyst Cloud