Para tumbleweed execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:oliviercalle/tumbleweed/home:oliviercalle.repo
zypper refresh
zypper install python-pyserial
Para openSUSE Slowroll execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:oliviercalle/openSUSE_Slowroll/home:oliviercalle.repo
zypper refresh
zypper install python-pyserial
Para 16.0 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:oliviercalle/16.0/home:oliviercalle.repo
zypper refresh
zypper install python-pyserial
Para 15.6 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:oliviercalle/15.6/home:oliviercalle.repo
zypper refresh
zypper install python-pyserial