It's simple python console based on IronPython.net You can pretty much execute any command, method, change variables, create objects all in play mode
I've build it on top of https://github.com/exodrifter/unity-python
Usage and examples
Required Unity 2017.2 It could work on older Unity versions but it wasn't tested
To test in editor just open scene
and hit play.
It was tested on Windows build, WebGL is not working as far as I know other platforms not tested yet