astrofrog/astropy — pull request #29 by mhvk (2013-07-05 20:08:53+00:00)
Title: Treat dimensionless units the same way as angles

@astrofrog - this simple change makes the code and implementation so much more symmetric that I couldn't resist... Of course, feel free to reject -- but note that I didn't even have to edit one of your exception messages, suggesting your thinking on dimensions is similar to mine at least half the time ;-)