Para openSUSE Tumbleweed execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:inescid:python/openSUSE_Tumbleweed/home:inescid:python.repo
zypper refresh
zypper install python39-idle
Para 15.6 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:inescid:python/15.6/home:inescid:python.repo
zypper refresh
zypper install python39-idle
Para 15.5 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:inescid:python/15.5/home:inescid:python.repo
zypper refresh
zypper install python39-idle