The purpose was to upload a file and receive the content sorted alphabetically.
command-line:
Open a terminal and run "python server.py".
In another terminal run "python client.py name_of_the_file".
The file to be sent must be in the same folder.
web-server-python:
Run "python web-server.py"
http://localhost:8000/
The python web server with upload is based upon:
https://gist.github.com/UniIsland/3346170
Helpfull information:
https://pymotw.com/2/socket/tcp.html
See visible ports: http://canyouseeme.org/