In this entry, I’ll show you how to enable HTTP/2 for your Twisted Web-based site. HTTP/2 is the latest entry in the HTTP family of protocols. It builds on work from Google and others to improve performance (and other) shortcomings of the older HTTP/1.x protocols in wide-spread use today.
Twisted implements HTTP/2 support by building on the general-purpose H2 Python library. In fact, all you have to do to have HTTP/2 for your Twisted Web-based site (starting in Twisted 16.3.0) is install the dependencies:
$ pip install twisted[http2]
Your TLS-based site is now available via HTTP/2! A future version of Twisted will likely extend this to non-TLS sites (which requires the
Upgrade: h2c handshake) with no further effort on your part.