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An open python implementation of the OMEMO Multi-End Message and Object Encryption protocol.

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# python-omemo #

A Python implementation of the [OMEMO Multi-End Message and Object Encryption protocol](https://xmpp.org/extensions/xep-0384.html).

A complete implementation of [XEP-0384](https://xmpp.org/extensions/xep-0384.html) on protocol-level, i.e. more than just the cryptography. python-omemo supports different versions of the specification through so-called backends. A backend for OMEMO in the `urn:xmpp:omemo:2` namespace (the most recent version of the specification) is available in the [python-twomemo](https://github.com/Syndace/python-twomemo) Python package. A backend for (legacy) OMEMO in the `eu.siacs.conversations.axolotl` namespace is available in the [python-oldmemo](https://github.com/Syndace/python-oldmemo) package. Multiple backends can be loaded and used at the same time, the library manages their coexistence transparently.

## Installation ##

Install the latest release using pip (`pip install OMEMO`) or manually from source by running `pip install .` in the cloned repository.

## Testing, Type Checks and Linting ##

python-omemo uses [pytest](https://docs.pytest.org/en/latest/) as its testing framework, [mypy](http://mypy-lang.org/) for static type checks and both [pylint](https://pylint.pycqa.org/en/latest/) and [Flake8](https://flake8.pycqa.org/en/latest/) for linting. All tests/checks can be run locally with the following commands:

```sh
$ pip install --upgrade .[dev]
$ mypy omemo/ examples/ tests/
$ pylint omemo/ examples/ tests/
$ flake8 omemo/ examples/ tests/
$ pytest
```

## Getting Started ##

Refer to the documentation on [readthedocs.io](https://py-omemo.readthedocs.io/), or build it locally. Additional requirements to build the docs can be installed using `pip install .[docs]`. With all dependencies installed, run `make html` in the `docs/` directory. The documentation can then be found in `docs/_build/html/`.

The `functionality.md` file contains an overview of supported functionality/use cases, mostly targeted at developers.

python-omemo

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