> Then use the `total_ordering` decorator to provide the remaining rich comparison methods.
While we're here, worth highlighting `cmp_to_key` as well for `sorted` etc. calls.
> it's a little annoying Python didn't keep __cmp__ around since there's no direct replacement that's just as succinct
The rationale offered at the time (https://docs.python.org/3/whatsnew/3.0.html) was admittedly weak, but at least this way there isn't confusion over what happens if you try to use both ways (because one of them just isn't a way any more).
While we're here, worth highlighting `cmp_to_key` as well for `sorted` etc. calls.
> it's a little annoying Python didn't keep __cmp__ around since there's no direct replacement that's just as succinct
The rationale offered at the time (https://docs.python.org/3/whatsnew/3.0.html) was admittedly weak, but at least this way there isn't confusion over what happens if you try to use both ways (because one of them just isn't a way any more).