Welcome, and thank you for your interest in contributing! ========================================================= If you are looking for a good way to contribute to the Cython project, please * have a look at the `Cython Hacker Guide `_, especially the section on `getting started `_. * look through the `issues that need help `_. * look through the `issues that are a good entry point for beginners `_. * ask on the `core developers mailing list `_ for guidance. If you have code that you want to contribute, please make sure that it * includes tests in the `tests/` directory (see the `Hacker Guide on Testing `_) * comes in form of a pull request We use `travis `_ and `appveyor `_ for cross-platform testing, including pull requests.