port select fails if invalid exists

[nhojpatrick (John Patrick)]

I've just done a weekly upgrade and a prompt appeared about python. So I did as suggested, I then played around with other python versions and discovered select doesn't clean up if active versions are uninstalled and then you try and install a new version as active.

$ sudo port select --list python3 Available versions for python3:

none (active) python35

$ ls -l /opt/local/etc/select/python3/ total 32 -rw-r--r--+ 1 root admin 145 12 Sep 13:27 base lrwxr-xr-x 1 root admin 8 21 Aug 2015 current -> python34 -rw-r--r--+ 1 root admin 20 12 Sep 13:27 none -rw-r--r--+ 1 root admin 154 18 Oct 20:11 python35 $ sudo port select --set python3 python35 Selecting 'python35' for 'python3' failed: symlink: /opt/local/etc/select/python3/current -> python35: file already exists

I would attempt a port but no idea where to start and already trying to fix the githut portgroup.

I would guess this could happen with every port select. If an invalid symlink exists and you try and set a new one it should delete the existing symlink and create it as specified.