---
id: h2
version: "4.4.1"
license: MIT
license_treatment: permissive
maintenance: active
---

# h2 — Pure-Python HTTP/2 protocol implementation

License: permissive · Maintenance: active · Popularity: top 1,000 on PyPI

## Install

pip install h2
uv add h2
poetry add h2

## Description

=========================
h2: HTTP/2 Protocol Stack
=========================

.. image:: https://github.com/python-hyper/h2/workflows/CI/badge.svg
    :target: https://github.com/python-hyper/h2/actions
    :alt: Build Status
.. image:: https://codecov.io/gh/python-hyper/h2/branch/master/graph/badge.svg
    :target: https://codecov.io/gh/python-hyper/h2
    :alt: Code Coverage
.. image:: https://readthedocs.org/projects/h2/badge/?version=latest
    :target: https://h2.readthedocs.io/en/latest/
    :alt: Documentation Status
.. image:: https://img.shields.io/badge/chat-join_now-brightgreen.svg
    :target: https://gitter.im/python-hyper/community
    :alt: Chat community

.. image:: https://raw.github.com/python-hyper/documentation/master/source/logo/hyper-black-bg-white.png

This repository contains a pure-Python implementation of a HTTP/2 protocol
stack. It's written from the ground up to be embeddable in whatever program you
choose to use, ensuring that you can speak HTTP/2 regardless of your
programming paradigm.

You use it like this:

.. code-block:: python

    import h2.connection
    import h2.config

    config = h2.config.H2Configuration()
    conn =...

## AI interpretation — verify before relying

h2 is a pure-Python HTTP/2 protocol implementation that handles frame-level communication, header encoding, and stream management for embedding HTTP/2 support into any Python application.

Verdict: h2 is a stable, actively maintained HTTP/2 implementation suitable for production use. With no known vulnerabilities, minimal dependencies, and permissive licensing, it's a reliable choice for projects needing HTTP/2 protocol support. The low install friction and broad Python version support (3.10–3.14) make adoption straightforward.

[View on SkillFed](https://skillfed.io/packages/h2) · [View on PyPI](https://pypi.org/project/h2/)