qh3 0.15.0

An implementation of QUIC and HTTP/3

What is qh3?

qh3 is a maintained fork of the aioquic library. It is lighter, faster, and more adapted to mass usage. Regularly improved and expect a better time to initial response in issues and PRs.

qh3 is a library for the QUIC network protocol in Python. It features a minimal TLS 1.3 implementation, a QUIC stack, and an HTTP/3 stack.

QUIC was standardized in RFC 9000 and HTTP/3 in RFC 9114. qh3 is regularly tested for interoperability against other QUIC implementations.

To learn more about qh3 please read the documentation.

Why should I use qh3?

qh3 has been designed to be embedded into Python client and server libraries wishing to support QUIC and/or HTTP/3. The goal is to provide a common codebase for Python libraries in the hope of avoiding duplicated effort.

Both the QUIC and the HTTP/3 APIs follow the “bring your own I/O” pattern, leaving actual I/O operations to the API user. This approach has a number of advantages including making the code testable and allowing integration with different concurrency models.

This library is the lowest level you can find for handling QUIC and HTTP/3. Here are higher libraries:

• mid-way: urllib3.future

• highest and easiest: niquests (Recommended!)

Features

• QUIC stack conforming with RFC 9000

• HTTP/3 stack conforming with RFC 9114

• minimal TLS 1.3 implementation conforming with RFC 8446

• IPv4 and IPv6 support

• connection migration and NAT rebinding

• logging TLS traffic secrets

• logging QUIC events in QLOG format

• HTTP/3 server push support

Requirements

qh3 requires Python 3.7 or greater.

Running the examples

qh3 comes with a number of examples illustrating various QUIC use cases.

You can browse these examples here: https://github.com/Ousret/qh3/tree/main/examples

License

qh3 is released under the BSD license.