- pymux (tmux clone): https://github.com/jonathanslenders/pymux/
- pyvim (vim clone): https://github.com/jonathanslenders/pyvim/
Lots of community-driven CLI tools with superb autocompletion:
- ptpython: http://github.com/jonathanslenders/ptpython/
- pgcli: http://pgcli.com/ + mycli: http://mycli.net/
- complete shells: xonsh (http://xon.sh/) + ergonomica (https://ergonomica.github.io/)