# Installation

To install pyOpenSSL:

    $ pip install pyopenssl

If you are installing in order to develop on pyOpenSSL, move to the root directory of a pyOpenSSL checkout, and run:

    $ pip install -e .

Warning

As of 0.14, pyOpenSSL is a pure-Python project. That means that if you encounter any kind of compiler errors, pyOpenSSL’s bugtracker is the wrong place to report them because we cannot help you.

Please take the time to read the errors and report them/ask help from the appropriate project. The most likely culprit being cryptography that contains OpenSSL’s library bindings.

## Supported OpenSSL Versions

pyOpenSSL supports the same platforms and releases as the upstream cryptography project does. Currently that means:

- 1.1.0

- 1.1.1

- 3.0

You can always find out the versions of pyOpenSSL, cryptography, and the linked OpenSSL by running `python -m OpenSSL.debug`.

## Documentation

The documentation is written in reStructuredText and built using Sphinx:

    $ cd doc
    $ make html