To uninstall xonsh just follow these instructions.
sudo apt-get remove xonsh
This will remove just the xonsh package itself.
sudo apt-get remove --auto-remove xonsh
This will remove the xonsh package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for xonsh then this will work.
sudo apt-get purge xonsh
Or similarly, like this xonsh
sudo apt-get purge --auto-remove xonsh
|Maintainer||Gordon Ball <firstname.lastname@example.org>|
|Description||Python-powered, cross-platform, Unix-gazing shell xonsh is based on Python, with additional syntax added that makes calling subprocess commands, manipulating the environment, and dealing with the file system easy. Xonsh supports all normal Python constructs and a subset of those available in bash.|