Networks used in real life, and where to go from here.
Some popular companies and applications that use Twisted:
More success stories are on Twisted’s website.
Twisted’s documentation contains a number of howtos, including web servers and clients, SMTP (mail) clients, DNS servers, and SSH servers. Complete list of tutorials and examples are listed here.
There are a number of excellent tutorials written by Dave Peticolas that don’t assume existing knowledge about networking or concurrency.
Gordon McMillan wrote a socket programming tutorial that makes use of Python’s socket library instead of Twisted.
There are a couple other popular network libraries written in Python: