Issue #15502: Finish bringing importlib.abc in line with the current state of the import system. Also make importlib.invalidate_caches() work with sys.meta_path instead of sys.path_importer_cache to completely separate the path-based import system from the overall import system. Patch by Eric Snow.

#include "Python.h"

#ifndef PLATFORM
#define PLATFORM "unknown"
#endif

const char *
Py_GetPlatform(void)
{
	return PLATFORM;
}