Start with flask. It's very small and you won't have wasted any time learning it if you later choose not to use it. In reality, you should have both in your t

Start with flask. It's very small and you won't have wasted any time learning it if you later choose not to use it. In reality, you should have both in your toolbelt. I use them both, and at work I use the two equivalents in ruby (rails & sinatra). You'll want Django for big crud apps, and you'll want flask for smaller apps and custom APIs.