Study Guide: Local Web server with Python
How to spin up a local Python web server from any directory.
Python has an HTTP server built into the Standard Library that can be used to preview websites from a local directory.
The following commands will serve the current directory at http://localhost:8000.
Quit the server by entering Command-C.
(Hold down the Command key and press the C key.)
Python 3.x
$ python3 -m http.server
Python 2.x
$ python -m SimpleHTTPServer 8000
Source: https://class.ronliskey.com/study/computing/python-local-web-server/