Three Dollar Quill

I've been polishing the tests, and now I'm down to four failures:

• One that looks like I either have no idea how to use pip, or I've messed up the implementation. I'll take either, frankly, but the implementation looks reasonable.
• Three that look about the same, all having to do with _DistInfoDistribution__dep_map. The bulk of the traceback makes it look a lot like a test issue, so I'm going to take another look. Hm, yes, I think these are invalid. I'll get rid of them.

So, that's one troublesome test left. I'll try to take care of it tomorrow, and then, at last, I can work on stuff aside from code for this. I'm just going to make super sure that I have just the one failure left, and then post this and wrap up for the night. Okay, cool, it's as good as I can manage for now.

Good night.