lambda _, __, ___, ____, _____, ______, _______, ________: print "Hello, W…TF"

[phd_ru]

Obfuscating "Hello world!":

…getattr(
        __import__(True.__class__.__name__[_] + [].__class__.__name__[__]),
        ().__class__.__eq__.__class__.__name__[:__] +
        ().__iter__().__class__.__name__[_____:________]
    )…

Найдено в Python Weekly.