Reference

This section is a quick-lookup map for the kinds of metadata a maintainer or embedder needs but doesn't want to chase across the tree.

Page	What's in it
Configuration	Build-time configure flags and runtime PyConfig / PyPreConfig fields.
Data models	Layouts of the major runtime data structures: PyObject, PyTypeObject, _PyInterpreterFrame, PyCodeObject.
Dependencies	External libraries CPython depends on or vendors.

For language-level references (syntax, semantics, stdlib API), see the user docs at https://docs.python.org/.