"Treading in Python, Vol. 2" by Harrison goes pretty in-depth with the usual suspects -- iterators, generators, decorators, dunder methods, etc. Then Knupp's "I

"Treading in Python, Vol. 2" by Harrison goes pretty in-depth with the usual suspects -- iterators, generators, decorators, dunder methods, etc. Then Knupp's "Idiomatic Python" is handy to review for tips and tricks. But overall I also like Beazley et. al. for a great cookbook and a good glimpse into "effective" Python.