If you understand the basics of Python, you will be able to understand Django in a much more comprehensive way. For example, by having a greater understanding of Python, you will be able to identify the bits of Django that are plain Python and the bits that are unique to Django.
This course is only meant to be a very basic introduction to Python so you can better understand how Django works. It's not meant to be a complete tutorial on Python - that would require an entire book on its own!
To get full benefit out of Django, I highly recommend you expand your knowledge of Python as soon as possible. In each lesson, I have included links to Django and Python documentation where you can find extra information about each Python topic.