I decided to delve into the study of the Python interpreter.
To learn how the Ruby interpreter works, there is the RHG .
Actually the question is: is there an analogue of the Ruby Hacking Guide for Python?
At least write down what it is.
If it's about cpython internals documentation then:
docs.python.org/devguide/compiler.html
tech.blog.aknin.name/category/my-projects/pythons-innards/
code.google.com/edu/languages/