Maintaining astropy and affiliated packages# How to create and maintain a Python package using the Astropy template Releasing a Python package Workflow for Maintainers Integrating changes via the web interface Taking over a pull request Fixing coding style issues Using Milestones and Labels Updating and Maintaining the Changelog Stale Policies Release procedure for the astropy core package Start of a new release cycle - feature freeze and branching Releasing the first feature release candidate Releasing subsequent release candidates Releasing the final version of the feature release Maintaining Bug Fix Releases Common procedures Astropy Testing Tools Details astropy.tests.helper Module Astropy Test Runner