Wow. I hadn't realized that syntax like "for a[::i] in" is valid Python. Attribute assignment (for x.foo in) seem to work too. I'm not sure if there will ever b

Wow. I hadn't realized that syntax like "for a[::i] in" is valid Python. Attribute assignment (for x.foo in) seem to work too. I'm not sure if there will ever be any reason to use those in real code, but it's nice trivia to know for Python golfing.