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#

parselglossy could always use more documentation, whether as part of the official parselglossy 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 parselglossy for local development.

  1. Fork the parselglossy repo on GitHub.

  2. Clone your fork locally:

    $ git clone
  3. Install your local copy into a virtual environment. We recommend using Pipenv. This is how you set up your fork for local development:

    $ pipenv install --dev -e .
  4. Create a branch for local development:

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

    Now you can make your changes locally.

  5. When you’re done making changes, check that your changes pass flake8 and the tests:

    $ flake8 parselglossy tests
    $ py.test

    To get flake8, just pip install it into your virtual environment.

  1. Formatting of your contributions should be coherent with that of the rest of the code. We use Black and its default code style. Black is beta software and requires Python 3.6+, but it can easily be installed in your virtual environment. The code ships with Git pre-commit hooks. You can install pre-commit and enable them with:

    $ pre-commit install --install-hooks
  1. Commit your changes and push your branch to GitHub:

    $ git add .
    $ git commit -sm "Your detailed description of your changes."
    $ git push origin name-of-your-bugfix-or-feature

    Note the use of the -s flag when committing. This ensures that you have read and agreed to the Developer Certificate of Origin (DCO) by signing off your commits.

  2. Submit a pull request through the GitHub website.

Pull Request Guidelines#

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

  1. All commits should be signed-off

  2. The pull request should include tests.

  3. 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.

  4. The pull request should work for Python 3.6 and 3.7. Check and make sure that the tests pass for all supported Python versions.

Additional Development Packages#

There are many ways you can set up your development environment to work on parselglossy. The minimal, working specification is given in the Pipfile and will allow you to run test as done on the continuous integration services. In addition to the essential development packages, you might want to additionally install:

  • Python language server for modern integration with your editor. Note that this will need some configuration work on your part to set up the integration.

  • mypy for optional type checking and the pyls-mypy integration plugin with the language server. As the library evolves and stabilises, we might introduce type checking as an additional test to the test suite.

  • isort for automatic sorting of import statements and the pyls-isort integration plugin with language server.

  • The pyls-black integration plugin for the Black code formatter and the language server.

  • If you use Emacs, importmagic can be integrated to provide symbol resolution.


A reminder for the maintainers on how to deploy. Make sure all your changes are committed (including an entry in HISTORY.rst). Then run:

  1. Bump the version by editing __version__ in parselglossy/ For this follow PEP 440.

  2. Stage and commit the change to a branch:

    $ git add parselglossy/
    $ git commit -sm "Bump version: x.y.z -> X.Y.Z"
  3. Submit a pull request targeting either the master branch or a release branch.

  4. Once the pull request is accepted, create and push a tag. Travis will then automatically deploy to PyPI if tests pass for the Python 3.6 lane:

    $ git tag -a vX.Y.Z -m "Version X.Y.Z release" -s # -s is to GPG-sign the tag
  5. If everything worked out, write a minimal summary of the release via the GitHub web user interface.