CONTRIBUTING.md

Thanks for using UrbanSim!

This is an open source project that's part of the Urban Data Science Toolkit. Development and maintenance is a collaboration between UrbanSim Inc, U.C. Berkeley's Urban Analytics Lab, and other contributors.

You can contact Sam Maurer, the lead maintainer, at maurer@urbansim.com.

If you have a problem:

• Take a look at the open issues and closed issues to see if there's already a related discussion

• Open a new issue describing the problem -- if possible, include any error messages, the operating system and version of python you're using, and versions of any libraries that may be relevant

Feature proposals:

• Take a look at the open issues and closed issues to see if there's already a related discussion

• Post your proposal as a new issue, so we can discuss it (some proposals may not be a good fit for the project)

• Please note that active development of certain UrbanSim components has moved to stand-alone libraries in UDST: Developer, Choicemodels, UrbanSim Templates

Contributing code:

• Create a new branch of UDST/urbansim, or fork the repository to your own account

• Make your changes, following the existing styles for code and inline documentation

• Add tests if possible!

• Open a pull request to the UDST/urbansim dev branch, including a writeup of your changes -- take a look at some of the closed PR's for examples

• Current maintainers will review the code, suggest changes, and hopefully merge it!

Updating the documentation:

• See instructions in docs/README.md

Preparing a release:

• Make a new branch for release prep

• Update the version number and changelog

  • CHANGELOG.md
  • setup.py
  • urbansim/__init__.py
  • docs/source/index.rst

• Make sure all the tests are passing, and check if updates are needed to README.md or to the documentation

• Open a pull request to the master branch to finalize it

• After merging, tag the release on GitHub and follow the distribution procedures below

Distributing a release on PyPI (for pip installation):

• Register an account at https://pypi.org, ask one of the current maintainers to add you to the project, and pip install twine

• Check out the copy of the code you'd like to release

• Run python setup.py sdist bdist_wheel --universal

• This should create a dist directory containing two package files -- delete any old ones before the next step

• Run twine upload dist/* -- this will prompt you for your pypi.org credentials

• Check https://pypi.org/project/urbansim/ for the new version

Distributing a release on Conda Forge (for conda installation):

• The conda-forge/urbansim-feedstock repository controls the Conda Forge release

• Conda Forge bots usually detect new releases on PyPI and set in motion the appropriate feedstock updates, which a current maintainer will need to approve and merge

• Check https://anaconda.org/conda-forge/urbansim for the new version (may take a few minutes for it to appear)