python-hyper/h2

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

1040 stars · 187 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

h2 is a pure-Python implementation of the HTTP/2 protocol stack that performs no I/O, making it embeddable in any program or framework. It exposes an in-memory state machine over HTTP/2 frames, letting developers build clients or servers on top of their own networking layer.

Use cases

• implement http/2 support in a python http client
• build a custom http/2 server on my own event loop
• parse and generate http/2 frames in python
• add http/2 to an existing asyncio or twisted application
• test http/2 protocol behavior without real sockets
• embed http/2 in a proxy or load balancer written in python

When to choose

• you need fine-grained control over the HTTP/2 protocol layer without a bundled network stack
• you want a pure-Python, dependency-light implementation that works with any concurrency model
• you are building an HTTP client, server, proxy, or framework that must speak HTTP/2

When to avoid

• you just want to make HTTP requests - use requests or httpx instead
• you need a complete out-of-the-box HTTP server or client with I/O included
• you need HTTP/3 or QUIC support

Facets

library · maturity stable

http-server http-client parser middleware web-development networking apis developer-tools python cross-platform http2 protocol-implementation pure-python no-io embeddable hpack framing

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