[TheLoneWolfling]

At least it's less magic than puLP:

  prob += x*2 + y, "foo"

This sets the objective function of prob to (2x+y), and assigns it a name of "foo".

  prob += x*2 + y > 3, "abcd"

That puts a constraint that 2x + y > 3, called "abcd".

On both of these the string is optional.

I'm also conflicted. On one hand, it's about the most compact syntax you can get for something like this - when similar libraries in languages without operator overloading resort to passing strings into functions... On the other hand, it can be utterly incomprehensible if you haven't gone through the documentation.