It's nice to see software last like this. Some personal anecdotes
Back in the day, when I was first picking up on frameworks, I saw Django and TurboGears. A friend of mine went with Django while I went with TG. I don't really know what the status of TG is anymore but back then, I thought SQLObject, Mochikit etc. were awesome. I think I took the wrong fork in the road then.
I once attended a "web" panel at PyCon India where there was a discussion between proponents of various frameworks. The Django guy had a nice quote - "I don't know what the standard Python web framework of Python will look like in another 20 years but I'm quite sure that it will be called Django". His point was about the longevity of the project and it's ability to adapt.