Ask HN: Why Python over Ruby?

I would like to understand why Python is so much more popular than Ruby. Much of the software I've seen supports Python for scripting (e.g. Miro, OpenMoko, XBMC/Boxee), and people don't seem to care so much for Ruby. At the same time, people agree that Ruby is great for writing DSLs.

I don't want a flame war or religious arguments. I would like to understand what made Python win in this space. Thanks so much for commenting!