My company maintains several Python related projects, one of them being an application published for many years in the Mac App Store.

During the submittion of the last update for the app, we were refused by Apple to publish the software with the following reason:

Guideline 2.5.1 - Performance
Your app links against the following non-public framework(s):

• Contents/Frameworks/Python.framework/Versions/3.9/lib/libformw.5.dylib/_wadd_wchnstr
• Contents/Frameworks/Python.framework/Versions/3.9/lib/libformw.5.dylib/_wins_wch
• Contents/Frameworks/Python.framework/Versions/3.9/lib/libformw.5.dylib/_win_wch
• Contents/Frameworks/Python.framework/Versions/3.9/lib/libformw.5.dylib/_win_wchnstr
• Contents/Frameworks/Python.framework/Versions/3.9/lib/libformw.5.dylib/_win_wchnstr
• Contents/Frameworks/libpython3.9.dylib/___sprintf_chk
• Contents/Frameworks/libpython3.9.dylib/_posix_spawn
• Contents/Frameworks/libpython3.9.dylib/_posix_spawn_file_actions_addclose
• Contents/Frameworks/libpython3.9.dylib/_posix_spawn_file_actions_adddup2
• Contents/Frameworks/libpython3.9.dylib/_posix_spawn_file_actions_addopen
• Contents/Frameworks/libpython3.9.dylib/_posix_spawn_file_actions_destroy
• Contents/Frameworks/libpython3.9.dylib/_posix_spawn_file_actions_init
• Contents/Frameworks/libpython3.9.dylib/_posix_spawnattr_destroy
• Contents/Frameworks/libpython3.9.dylib/_posix_spawnattr_init
• Contents/Frameworks/libpython3.9.dylib/_posix_spawnattr_setflags
• Contents/Frameworks/libpython3.9.dylib/_posix_spawnattr_setpgroup
• Contents/Frameworks/libpython3.9.dylib/_posix_spawnattr_setsigdefault
• Contents/Frameworks/libpython3.9.dylib/_posix_spawnattr_setsigmask
• Contents/Frameworks/libpython3.9.dylib/_posix_spawnp
• Contents/Frameworks/libcrypto.1.1.dylib/___sprintf_chk
• Contents/Frameworks/libp11-kit.0.dylib/___sprintf_chk
• Contents/Frameworks/Python.framework/Versions/3.9/lib/libpanelw.5.dylib/_SP
• Contents/Frameworks/Python.framework/Versions/3.9/lib/libformw.5.dylib/_SP
• Contents/Frameworks/Python.framework/Versions/3.9/lib/libformw.5.dylib/___sprintf_chk
• Contents/Frameworks/libmpfr.6.dylib/___sprintf_chk
• Contents/Frameworks/libgnutls.30.dylib/___sprintf_chk
• Contents/Frameworks/libgnutls.30.dylib/_p11_kit_space_strdup
• Contents/Frameworks/libgnutls.30.dylib/_p11_kit_space_strlen
• Contents/Frameworks/libidn2.0.dylib/_sprintf
• Contents/Frameworks/libx264.157.dylib/___sprintf_chk
• Contents/Frameworks/Python.framework/Versions/3.9/lib/libcrypto.1.1.dylib/___sprintf_chk
• Contents/Frameworks/libssl.1.1.dylib/___sprintf_chk
• Contents/Frameworks/libxml2.2.dylib/___sprintf_chk
• Contents/Frameworks/Python.framework/Versions/3.9/Python/___sprintf_chk
• Contents/Frameworks/Python.framework/Versions/3.9/Python/_posix_spawn
• Contents/Frameworks/Python.framework/Versions/3.9/Python/_posix_spawn_file_actions_addclose
• Contents/Frameworks/Python.framework/Versions/3.9/Python/_posix_spawn_file_actions_adddup2
• Contents/Frameworks/Python.framework/Versions/3.9/Python/_posix_spawn_file_actions_addopen
• Contents/Frameworks/Python.framework/Versions/3.9/Python/_posix_spawn_file_actions_destroy
• Contents/Frameworks/Python.framework/Versions/3.9/Python/_posix_spawn_file_actions_init
• Contents/Frameworks/Python.framework/Versions/3.9/Python/_posix_spawnattr_destroy
• Contents/Frameworks/Python.framework/Versions/3.9/Python/_posix_spawnattr_init
• Contents/Frameworks/Python.framework/Versions/3.9/Python/_posix_spawnattr_setflags
• Contents/Frameworks/Python.framework/Versions/3.9/Python/_posix_spawnattr_setpgroup
• Contents/Frameworks/Python.framework/Versions/3.9/Python/_posix_spawnattr_setsigdefault
• Contents/Frameworks/Python.framework/Versions/3.9/Python/_posix_spawnattr_setsigmask
• Contents/Frameworks/Python.framework/Versions/3.9/Python/_posix_spawnp
• Contents/Frameworks/Python.framework/Versions/3.9/lib/libssl.1.1.dylib/___sprintf_chk
• Contents/Frameworks/libhogweed.6.dylib/_nettle_buffer_space
• Contents/Frameworks/libicui18n.67.dylib/_sprintf
• Contents/Frameworks/Python.framework/Versions/3.9/lib/libmenuw.5.dylib/_SP
• Contents/Frameworks/libavfilter.7.dylib/_avformat_match_stream_specifier
• Contents/Frameworks/libmpc.3.dylib/___sprintf_chk
• Contents/Frameworks/libunistring.2.dylib/___sprintf_chk
• Contents/Frameworks/libunistring.2.dylib/_sprintf
• Contents/Frameworks/Python.framework/Versions/3.9/lib/libpanelw.5.dylib/__nc_panelhook
• Contents/Frameworks/Python.framework/Versions/3.9/lib/libformw.5.dylib/__nc_wcrtomb

Next Steps

The use of non-public APIs is not permitted on the App Store as it can lead to a poor user experience should these APIs change.