It doesn't look like the ppa-purge command worked. Try purging the python version installed from deadsnakes:
$ apt purge python3.8
In any case, the solution is to remove all packages that were install from that PPA (even though the PPA source list has been removed already).
It doesn't look like the ppa-purge command worked. Try purging the python version installed from deadsnakes:
$ apt purge python3.8
In any case, the solution is to remove all packages that were install from that PPA (even though the PPA source list has been removed already).