ref: 2d83ae8fb215c12f56e860f04217d5117dc44b43
dir: /sys/lib/python/idlelib/testcode.py/
import string def f(): a = 0 b = 1 c = 2 d = 3 e = 4 g() def g(): h() def h(): i() def i(): j() def j(): k() def k(): l() l = lambda: test() def test(): string.capwords(1) f()