is_eq, is_gt, etc helper methods

[aldanor]

Just a thought: why don't we add is_eq(), is_gt() etc methods (alongside the compare and rich_compare), for the sake of newcomer-friendliness? Sort of the same as is_none() etc.

Also, note explicitly in trait impl docstrings (and in is_eq/is_ne docstrings) that PartialEq compares pointers, which may otherwise lead to confusion.

(Here's a use case example. I've used pyo3 and rust-numpy for quite a lot and I've read large chunks of its sources but never needed to compare Python objects before for some reason. When I did, I started searching docs.rs and source code and gh repo for "eq" but was unable to find anything. It took me a good while till I randomly stumbled on rich_compare. Maybe I'm still missing something?)

[davidhewitt]

I think having is_eq() etc. is a great idea! PRs very welcome.

[mejrs]

I started searching docs.rs and source code and gh repo for "eq" but was unable to find anything.

At the very least we can make some doc aliases for that.