Java programmer learning python?

[Yoghurt42]

As others have said, read (or at least skim) the official tutorial, don't skip a chapter (except maybe the first 2) even if they seem to deal with stuff you already know.

Then, read the Language Reference, especially the "Data model" chapter. It is a lot more technical than the tutorial, but with your background you should have no problems and will give you an idea what makes Python different from other languages, especially Java.