[$] Changing the Python release cadence

There has been discussion about the release cadence of Python for a coupleof years now. The 18-month cycle between major releases of the languageis seen by some core developers as causingtoo muchdelay in getting new features into the hands of users. Now there are twocompeting proposals for ways to shorten that cycle, either to one year orby creating a rolling-release model. In general, the steering councilhas seemed inclined toward making some kind of release-cycle change-one ofthose Python Enhancement Proposals (PEPs) may well form the basis ofPython's release cadence moving forward.