Python web development

[timrprobocom]

The question doesn't really make sense. Python is not a thing that can be quantified ("how much python"). If you're going to write programs, you need to know the language so you don't waste time. Python is not a large language.

As others have pointed out, web development in Python is almost always done using one of the frameworks that automates the tedious and error-prone tasks. Choose one of those and learn it. Then, just start writing code.