how to convert code that uses cmp to python3

[Ben Finney]

Antoon Pardon <antoon.pardon at rece.vub.ac.be> writes:

> With this method I have to traverse the two tuples almost always
> twice. Once to find out if they are equal and if not a second time to
> find out which is greater.

You are essentially describing the new internal API of comparison
operators. That's pretty much unavoidable.

If you want to avoid repeating an expensive operation – the computation
of the comparison value for an object – you could add an LRU cache to
that function. See ‘functools.lru_cache’.

-- 
 \      “He that would make his own liberty secure must guard even his |
  `\                             enemy from oppression.” —Thomas Paine |
_o__)                                                                  |
Ben Finney