Replace the legacy code base powering PyPI with Warehouse, e.g., redirect web browser and API requests for pypi.python.org to pypi.org. Warehouse (as instantiated at PyPI.org) at this milestone is good enough to be the main entryway to Python packages. Not necessarily at feature parity with the old PyPI system.

We already auto deploy the master branch to both pypi.org and test.pypi.org, and pypi.org and pypi.python.org share data stores (so they're really just two different views over the same data) (and test.pypi.org and testpypi.python.org also share data store), so this is all live and usable right now. Launching is really just flipping the switch to make people go to the new site by default.

Legacy codebase will remain up temporarily at http://legacy.pypi.org/; see #1294.

See the whole roadmap.