Also definitely learn about using sum on non-numbers, and the key argument to min and max. They can be incredibly handy, but I hardly see them used. Have a cont

Also definitely learn about using sum on non-numbers, and the key argument to min and max. They can be incredibly handy, but I hardly see them used. Have a contrived example: >>> max(['aaa', 'bb', 'c'], key=lambda item: len(item)) 'aaa'