I know Python quite well; I have done several significant projects in it over the last few years. I have also read every page of the Django book and the vast majority of the official documentation. I became quite familiar with the internals of it, as I have spent many hours studying the source code before setting off to completely customize things.

What did I say which indicates a lack of experience?

I didn't feel this way in the beginning. At first, I quite liked Django. It was a huge time saver. I don't even really dislike Django now, our project has simply out grown it.