Allow the --enable-pystats build option to be used with free-threading. The stats are now stored on a per-interpreter basis, rather than process global. For free-threaded builds, the stats structure is allocated per-thread and then periodically merged into the per-interpreter stats structure (on thread exit or when the reporting function is called). Most of the pystats related code has be moved into the file Python/pystats.c.
The Python C API ================ The C API is divided into these sections: 1. ``Include/``: Limited API 2. ``Include/cpython/``: CPython implementation details 3. ``Include/cpython/``, names with the ``PyUnstable_`` prefix: API that can change between minor releases 4. ``Include/internal/``, and any name with ``_`` prefix: The internal API Information on changing the C API is available `in the developer guide`_ .. _in the developer guide: https://devguide.python.org/c-api/