* bpo-38070: _Py_DumpTraceback() writes <no Python frame> (GH-16244)
When a Python thread has no frame, _Py_DumpTraceback() and
_Py_DumpTracebackThreads() now write "<no Python frame>", rather than
writing nothing.
(cherry picked from commit 8fa3e1740b)
* bpo-38070: Enhance _PyObject_Dump() (GH-16243)
_PyObject_Dump() now dumps the object address for freed objects and
objects with ob_type=NULL.
(cherry picked from commit b39afb7876)
* bpo-38070: Add _PyRuntimeState.preinitializing (GH-16245)
Add _PyRuntimeState.preinitializing field: set to 1 while
Py_PreInitialize() is running.
_PyRuntimeState: rename also pre_initialized field to preinitialized.
(cherry picked from commit d3b904144e)
* bpo-38070: Py_FatalError() logs runtime state (GH-16246)
(cherry picked from commit 1ce16fb097)
47bbab9f76