Comment 3 for bug 1792508

To fix this, change the shebang line in
/usr/local/lib/byobu/include/select-session.py
(or /usr/local/Cellar/byobu/5.127/lib/byobu/include/select-session.py)

from:
#!/usr/bin/python3

to:
#!/usr/bin/env python3

This makes the code more portable -- and fixes this bug

Here is patched copy:
https://github.com/gerber/byobu/blob/gerber-patch-1/usr/lib/byobu/include/select-session.py