python311-kiwi from Virtualization:WSL:instarball project
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Add repository and install manually
For openSUSE Leap 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Virtualization:WSL:instarball/openSUSE_Leap_15.6/Virtualization:WSL:instarball.repo zypper refresh zypper install python311-kiwi