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Thanks for Your Help!

Contributing is so kind of you. In pyrk, all contributions, bug reports, bug fixes, documentation improvements, enhancements and ideas are welcome.

The GitHub "issues" tab contains some issues labeled "first PR". Those are open issues that would be a good quick way to get started. Browse them to see if you want to get started on one.

Bug Reports

  • Please include a short but detailed, self-contained Python snippet or explanation for reproducing the problem.

  • Explain what the expected behavior was, and what you saw instead.

Instructions for setting up a development environment

The pyrk project aims to to be compatible between Python 2.7 and 3.x, so it is important to test in both platforms before submitting a pull request. Anaconda is the recommended distribution to use to work on pyrk; we will assume that if you want to use another distribution or your own set up, you can translate the instructions.

You can download Anaconda at for the full install. You can also download a mini Anaconda install for a bare-bones install -- this is good for a build server or if you don't have much space. The mini Anaconda installs are available at

Once your Anaconda package is installed and available, create a Python 2.7 and 3.6 environment in Anaconda --

  • conda create -q -n pyrk-27-test-environment python=2.7 scipy numpy matplotlib nose pytables flake8
  • conda create -q -n pyrk-36-test-environment python=3.6 scipy numpy matplotlib nose pytables flake8

Each of these commands will take a bit of time -- give it a few minutes to download and install the packages and their dependences. Once complete, switch to each and install additional packages needed to run and test.

Activate the 2.7 environment and install nose and pint

  • source activate pyrk-27-test-environment
  • pip install nose pint

Activate the 3.6 environment and install nose and pint

  • source activate pyrk-27-test-environment
  • pip install nose pint
Run the tests

Tests are automatically detected and run with nose. To run them, use the nosetests script that was made available when nose was installed and add the pyrk code into the PYTHONPATH variable so that the tests can find the implementation code.

Start in the root directory where you have cloned the pyrk repository and run for Python 2.7 --

  • source active pyrk-27-test-environment
  • nosetests pyrk

And then for Python 3.6 --

  • source activate pyrk-36-test-environment
  • nosetests pyrk
Run style tests with flake8

Adherance to style checks in flake8 is encouraged though not strictly enforced. While you should not feel compelled to fix existing failures, please do not add additional flake8 issues.

  • run flake8 from the root of the pyrk working directory to get all flake8 issues
  • run flake8 and provide a filename to just run checks on that file
Pull Requests
  • Make sure the test suite passes on your computer. To do so, run nosetests in the tests directory.
  • Please reference relevant Github issues in your commit message using GH1234 or #1234.
  • Changes should be PEP8 compatible PEP8.
  • Keep style fixes to a separate commit to make your PR more readable.
  • Docstrings ideally follow the sphinx autodoc
  • Write tests.
  • When writing tests, please make sure they are in a test directory.
  • When you start working on a PR, start by creating a new branch pointing at the latest commit on github master.
  • Please avoid rebasing if possible. Nothing wrong with rebase... it is just confusing for @katyhuff .
  • The pyrk copyright policy is detailed in the pyrk LICENSE.

More developer docs

  • We are working on it.


Note, this contributing file was adapted from the one at the pandas repo. Thanks pandas!