This is a modest proposal to consider having sorted containers (http://www.grantjenks.com/docs/sortedcontainers/) in standard library. I know that usually adding stuff to standard library requires some strong arguments, so I will try my best to give my reasons here:

>>> Boys = {'Tim': 18,'Charlie':12,'Robert':25}

Girls = {'Tiffany':22}  

>>> print(cmp(Girls, Boys))

Traceback (most recent call last):

  File "<stdin>", line 1, in <module>

NameError: name 'cmp' is not defined

>>> Girls.__gt__(Boys)

NotImplemented

-- H