[lucaspmelo]
> I would like to ask as a feature request that "inf" be almost equal to
> "inf".

Sounds reasonable to me.  Just so long as float('-inf') isn't almost equal 
to float('inf');  that would be weird.

One could almost make a case for values very close to the upper limit of 
the floating-point range being almost equal to float('inf'), but I think 
that's taking things a bit too far.