piwheels is a project for automating building Raspberry Pi platform wheels (pre-compiled binary distributions) for all Python packages found on PyPI.
piwheels.org is a Python package repository providing Raspberry Pi wheels built by the project. See the homepage for usage and more information about the service.
If you have an issue with the piwheels project (i.e. related to the source code here, not the packages hosted on piwheels.org) on the piwheels/piwheels issue tracker.
If you're interested in developing with piwheels, or running your own instance, see the project documentation at piwheels.readthedocs.org.