Seems pretty neat so far, but I don't understand the motivation behind not allowing you to call str(template) and get the template as a normal string. I could imagine it being very useful to be able to gather up the template itself in a string to do stringy things with.

The only reason I could imagine, is if you are trying to protect developers from themselves, which kinda goes against the "we're all adults here" mentality that makes Python so great. I suppose it's easy enough to add that functionality, but come on.