This is a basic Blockly interface to Vector. It is built using Google Blockly, more information can be foun here:
https://developers.google.com/blockly

To start the  navigate to the dirctory containing vector_server.py and run the following command:
python3 -m vector_server.py

or Windows
py -3 -m vector_server

This should start a python http.server on the local host to allowing requests to Vector.  A web browser should then open displaying the Blockly page.

It requires the anki_vector SDK to be installed and working. More information can be found here:
https://developer.anki.com/vector/docs