Tutorial CPython internals: A ten-hour codewalk through the Python interpreter source code by Philip Guo

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Very nice and detailed video tut by Philip Guo

Here are nine lectures walking through the internals of CPython, the canonical Python interpreter implemented in C. They were from a dynamic programming languages course that I taught in Fall 2014 at the University of Rochester. The format isn't ideal, but I haven't seen this level of detail about CPython presented online, so I wanted to share these videos.

Lecture 1 - Interpreter and source code overview

Lecture 2 - Opcodes and main interpreter loop

This lecture references:

• Include/opcode.h
• Python/ceval.c
• Python dis module and bytecode reference

Lecture 3 - Frames, function calls, and scope

• Include/code.h
• Include/frameobject.h
• Objects/frameobject.c
• Python/ceval.c

Lecture 4 - PyObject: The core Python object

• Include/object.h
• Objects/object.c
• Python data model (Python API)
• Python object protocol (C API)

Lecture 5 - Example Python data types

• Objects/abstract.c
• Include/stringobject.h
• Objects/stringobject.c

Lecture 6 - Code objects, function objects, and closures

• Include/code.h
• Include/funcobject.h
• Objects/codeobject.c
• Objects/funcobject.c

Lecture 7 - Iterators

• Include/iterobject.h
• Objects/iterobject.c
• Objects/abstract.c
• Python/ceval.c

Lecture 8 - User-defined classes and objects

• Include/classobject.h
• Objects/classobject.c
• Objects/abstract.c
• Python/ceval.c

Lecture 9 - Generators

• Include/genobject.h
• Objects/genobject.c
• Python/ceval.c