Xonsh is a cross-platform, Python-powered, Unix shell language and command prompt designed for the use of experts and novices alike.
The Xonsh language is a Python 3.4+ superset and it features additional shell primitives that make it familiar to working from IPython and Bash.
Xonsh is easily scriptable and it allows you to mix both command prompt and python syntax coupled with a rich standard library, man-page completion, typed variables, and syntax highlighting, among other features.
Xonsh is significantly different from other shell tools as can be seen in comparison to other command prompts like Bash, zsh, fish, IPython, and plumbum.
Xonsh has certain requirements to run including Python v3.4+, PLY, and prompt-toolkit.
I don't know which shell tools and command prompt you enjoy using the most but Xonsh seems to have won the hearts of many users for reasons experts celebrate over.