WSGI server vs Web Server

[Skaperen]

why can't you just set up the wsgi container to listen to ports 80/443 directly and reduce the total workload on your server and increase the response time?

and i have already written my own little http server and am curious how much work would be involved to add wsgi support to it (not as the proxy).

edit:

that little http server i wrote is entirely in python. i wrote it back before i did anything with python3 (which is now the only python version i write for) and i have not updated it, yet. so i guess that means it is currently a python2 thing. its design is to use the http request path to find a python file and it loads it as a module and runs it in the same process. it is not a multi-user server.

edit:

the apache server and many others support the cgi method of dynamic execution. to execute python code, the code will have to be a command which runs in a separate process which exits when complete, making for a lower performing server. this includes the disadvantage of the need to store persistent data in files (and probably deal with process sharing issues) or in a database that a new connection needs to be made to for each dynamic web request.