Nice and concise. It would be complemented nicely by a list of Python "gotchas". E.g., off the top of my head, mutable default arguments, or trying to catch mu

Nice and concise. It would be complemented nicely by a list of Python "gotchas". E.g., off the top of my head, mutable default arguments, or trying to catch multiple exceptions with "except Exception1, Exception2:". That's the kind of thing people new to the language can spend a lot of time debugging when they first run into it. Edit: and any introduction to tuples should probably show how to write empty and one-element tuples, since that can be non-intuitive. Writing (1) instead of (1,) is also a fairly common gotcha.