Bruce Eckel recently reminded us in his Ode to the Python Quick Reference (PQR) that Richard Gruet and his collaborators have done the community a great service by preparing and maintaining these notes. The documents are available under a Creative Commons license.
If you want to know the specifics of a given version of Python then the series goes all the way back to version 1.5.2, making it valuable in archaeological terms too!
What more need be said? Thanks, guys, the PQR is an invaluable resource that truly caters to an international market.