ref: a021f054b0aaba768b9182dadd2da4b76fdf9576
dir: /sys/src/cmd/python/Demo/classes/README/
Examples of classes that implement special operators (see reference manual): Complex.py Complex numbers Dates.py Date manipulation package by Tim Peters Dbm.py Wrapper around built-in dbm, supporting arbitrary values Range.py Example of a generator: re-implement built-in range() Rat.py Rational numbers Rev.py Yield the reverse of a sequence Vec.py A simple vector class bitvec.py A bit-vector class by Jan-Hein B\"uhrman (For straightforward examples of basic class features, such as use of methods and inheritance, see the library code.)