Whew. (Wipes sweat off brow). Things like this are mentioned, in some detail, in the O'Reilly book Python in a Nutshell, IIRC, in the first edition, which is

Whew. (Wipes sweat off brow). Things like this are mentioned, in some detail, in the O'Reilly book Python in a Nutshell, IIRC, in the first edition, which is what I have. Couldn't quite wrap my head around all the material in that chapter, TBH. But I still like to read about such stuff, and I do understand bits and pieces of it.