Developers: The PyMOL Source Code is Organized into a Hierarchy

Core Python

Modules

Including the

Official “API”

Layer 5 - main.c

Contributed

Modules

Layer 4 - Python API Back-End

Layer 3 - Executive Layer & Selector

Layer 2 - Complex & Derived Objects

Layer 1 - Base Objects & Python Utilities

Layer 0 - C Tool Kits & C Utilities

C code

Python code &

C code wrapped

in Python