Rails is basically just super Django. Its aims to be a similar proposition. If you find it too complex you should look at Flask like the other poster suggested.
I'm working from the perspective that you want to get this over the finish line as soon as possible and its about delivering the product. With that assumption, I'd say stick with Django because you'll have everything you need and the built in admin site should let you take big shortcuts.
If you want to learn more and make more decisions yourself Flask would be a good option, you just might have to set things up that you'd get for free with Django. If you're OK with that, then that's cool.