cython3 deb package not available on travis system, reverting to installing with pip
cython3 deb package not available on travis system, reverting to installing with pip

anubhavvardhan/qutip,cgranade/qutip,zasdfgbnm/qutip,cgranade/qutip,qutip/qutip,qutip/qutip,anubhavvardhan/qutip,zasdfgbnm/qutip