Contributions are welcome, and they are greatly appreciated! Every little bit helps, and credit will always be given.

You can contribute in many ways:

Types of Contributions

Report Bugs

Report bugs at

If you are reporting a bug, please include:

  • Your operating system name and version.
  • Any details about your local setup that might be helpful in troubleshooting.
  • Detailed steps to reproduce the bug.

Fix Bugs

Look through the GitHub issues for bugs. Anything tagged with “bug” and “help wanted” is open to whoever wants to implement it.

Implement Features

Look through the GitHub issues for features. Anything tagged with “enhancement” and “help wanted” is open to whoever wants to implement it.

Write Documentation

htheatpump could always use more documentation, whether as part of the official htheatpump docs, in docstrings, or even on the web in blog posts, articles, and such.

Submit Feedback

The best way to send feedback is to file an issue at

If you are proposing a feature:

  • Explain in detail how it would work.
  • Keep the scope as narrow as possible, to make it easier to implement.
  • Remember that this is a volunteer-driven project, and that contributions are welcome :)

Get Started!

Ready to contribute? Here’s how to set up htheatpump for local development.

  1. Fork the htheatpump repository on GitHub.

  2. Clone your fork locally:

    $ git clone
  3. Install your local copy into a virtualenv [1]. Assuming you have virtualenvwrapper installed, this is how you set up your fork for local development under Python 3.7:

    $ mkvirtualenv hthp-py37 -p python3.7
    $ cd htheatpump/
    $ python develop
  4. Install all project dependencies for local development (and testing):

    $ pip install -r requirements/develop.pip
    $ pip install -r requirements/test.pip
  5. Create a branch for local development:

    $ git checkout -b name-of-your-bugfix-or-feature

    Now you can make your changes locally.

  6. When you’re done making changes, check that your changes pass flake8 and the tests (using pytest), including testing other Python versions with tox:

    $ flake8 htheatpump tests samples
    $ pytest
    $ tox

    There are also a few tests which only run if a heat pump is connected. These can be executed by passing the argument --connected to the test commands:

    $ pytest --connected
    $ tox -- --connected

    To change the default device (/dev/ttyUSB0) and baudrate (115200) use the arguments --device and --baudrate:

    $ pytest --connected --device /dev/ttyUSB1 --baudrate 9600
    $ tox -- --connected --device /dev/ttyUSB1 --baudrate 9600
  7. Commit your changes and push your branch to GitHub:

    $ git add .
    $ git commit -m "A description of your changes."
    $ git push origin name-of-your-bugfix-or-feature
  8. Submit a pull request through the GitHub website.

[1]If you need more information about Python virtual environments take a look at this article on RealPython.

Pull Request Guidelines

Before you submit a pull request, check that it meets these guidelines:

  1. The pull request should include tests.
  2. If the pull request adds functionality, the docs should be updated. Put your new functionality into a function with a docstring, and add the feature to the list in README.rst.
  3. The pull request should work for Python 3.5, 3.6, 3.7 and 3.8. Check and make sure that the tests pass for all supported Python versions.


To run a subset of tests:

$ pytest tests/