3.13 newly defines the following unprefixed functions/macros/types via Python.h. They should probably be hidden:

• uop_get_target in Include/cpython/optimizer.h:67
• uop_get_exit_index in Include/cpython/optimizer.h:73
• uop_get_jump_target in Include/cpython/optimizer.h:79
• uop_get_error_target in Include/cpython/optimizer.h:85
• BLOOM_FILTER_WORDS in Include/cpython/optimizer.h
• UOP_FORMAT_TARGET in Include/cpython/optimizer.h
• UOP_FORMAT_EXIT in Include/cpython/optimizer.h
• UOP_FORMAT_JUMP in Include/cpython/optimizer.h
• UOP_FORMAT_UNUSED in Include/cpython/optimizer.h
• struct _bloom_filter in Include/cpython/optimizer.h:19
• struct _exit_data in Include/cpython/optimizer.h:91
• optimize_func in Include/cpython/optimizer.h:112
• CO_NO_MONITORING_EVENTS in Include/cpython/code.h:192

Some more are generated by configure:

• HAVE_CLOCK_T in ./pyconfig.h:138
• HAVE_CLOSEFROM in ./pyconfig.h:138
• HAVE_GETGRENT in ./pyconfig.h:138
• HAVE_GRANTPT in ./pyconfig.h:515
• HAVE_POSIX_OPENPT in ./pyconfig.h:849
• HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSEFROM_NP in ./pyconfig.h:849
• HAVE_PROCESS_VM_READV in ./pyconfig.h:849
• HAVE_PTSNAME in ./pyconfig.h:957
• HAVE_PTSNAME_R in ./pyconfig.h:957
• HAVE_SOCKLEN_T in ./pyconfig.h:957
• HAVE_SYS_TIMERFD_H in ./pyconfig.h:1406
• HAVE_TIMERFD_CREATE in ./pyconfig.h:1406
• HAVE_UNLOCKPT in ./pyconfig.h:1406
• HAVE___UINT128_T in ./pyconfig.h:1582
• WITH_MIMALLOC in ./pyconfig.h:1867

Linked PRs

• gh-118771: Ensure names defined in optimizer.h start with Py/_Py #118825