simple http server for debugging, in one line of python

 https://linuxconfig.org/running-a-simple-http-web-server-with-one-terminal-command-and-python

We just need to run the following line in the directory which we want as the server's home directory - 

python3 -m http.server --bind 127.0.0.1 9000

Used this while troubleshooting OpenSpace showcomposer ui issues.