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HTTP/2 framing layer for Python

Project description

======================================
hyperframe: Pure-Python HTTP/2 framing
======================================

.. image:: https://travis-ci.org/python-hyper/hyperframe.png?branch=master
:target: https://travis-ci.org/python-hyper/hyperframe

This library contains the HTTP/2 framing code used in the `hyper`_ project. It
provides a pure-Python codebase that is capable of decoding a binary stream
into HTTP/2 frames.

This library is used directly by `hyper`_ and a number of other projects to
provide HTTP/2 frame decoding logic.

Contributing
============

hyperframe welcomes contributions from anyone! Unlike many other projects we
are happy to accept cosmetic contributions and small contributions, in addition
to large feature requests and changes.

Before you contribute (either by opening an issue or filing a pull request),
please `read the contribution guidelines`_.

.. _read the contribution guidelines: http://hyper.readthedocs.org/en/development/contributing.html

License
=======

hyperframe is made available under the MIT License. For more details, see the
``LICENSE`` file in the repository.

Authors
=======

hyperframe is maintained by Cory Benfield, with contributions from others. For
more details about the contributors, please see ``CONTRIBUTORS.rst``.

.. _hyper: http://python-hyper.org/


Release History
===============

3.1.1 (2016-01-18)
------------------

**Bugfixes**

- Correctly error when receiving Ping frames that have insufficient data.

3.1.0 (2016-01-13)
------------------

**API Changes**

- Added new ``InvalidFrameError`` that is thrown instead of ``struct.error``
when parsing a frame.

**Bugfixes**

- Fixed error when trying to serialize frames that use Priority information
with the defaults for that information.
- Fixed errors when displaying the repr of frames with non-printable bodies.

3.0.1 (2016-01-08)
------------------

**Bugfixes**

- Fix issue where unpadded DATA, PUSH_PROMISE and HEADERS frames that had empty
bodies would raise ``InvalidPaddingError`` exceptions when parsed.

3.0.0 (2016-01-08)
------------------

**Backwards Incompatible API Changes**

- Parsing padded frames that have invalid padding sizes now throws an
``InvalidPaddingError``.

2.2.0 (2015-10-15)
------------------

**API Changes**

- When an unknown frame is encountered, ``parse_frame_header`` now throws a
``ValueError`` subclass: ``UnknownFrameError``. This subclass contains the
frame type and the length of the frame body.

2.1.0 (2015-10-06)
------------------

**API Changes**

- Frames parsed from binary data now carry a ``body_len`` attribute that
matches the frame length (minus the frame header).

2.0.0 (2015-09-21)
------------------

**API Changes**

- Attempting to parse unrecognised frames now throws ``ValueError`` instead of
``KeyError``. Thanks to @Kriechi!
- Flags are now validated for correctness, preventing setting flags that
``hyperframe`` does not recognise and that would not serialize. Thanks to
@mhils!
- Frame properties can now be initialized in the constructors. Thanks to @mhils
and @Kriechi!
- Frames that cannot be sent on a stream now have their stream ID defaulted
to ``0``. Thanks to @Kriechi!

**Other Changes**

- Frames have a more useful repr. Thanks to @mhils!

1.1.1 (2015-07-20)
------------------

- Fix a bug where ``FRAME_MAX_LEN`` was one byte too small.

1.1.0 (2015-06-28)
------------------

- Add ``body_len`` property to frames to enable introspection of the actual
frame length. Thanks to @jdecuyper!

1.0.1 (2015-06-27)
------------------

- Fix bug where the frame header would have an incorrect length added to it.

1.0.0 (2015-04-12)
------------------

- Initial extraction from `hyper`_.

.. _hyper: http://hyper.readthedocs.org/

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