This one is particularly thorny ...

• _hypothesis_stubs
• interpreters Add test.support.interpreters at 3.13.2 #5684
• __init__.py (partial from Update struct to 3.13.3 and update parts of test.support #5702)
• ast_helper.py
• asynchat.py
• asyncore.py
• bytecode_helper.py
• hashlib_helper.py
• hypothesis_helper.py Upgrade parts of test.support #5686
• i18n_helper.py Upgrade parts of test.support #5686
• import_helper.py
• logging_helper.py
• numbers.py
• os_helper.py
• pty_helper.py Upgrade parts of test.support #5686
• refleak_helper.py
• script_helper.py
• smtpd.py Upgrade parts of test.support #5686
• socket_helper.py (partially from Remove nntplib #5683)
• testcase.py
• threading_helper.py
• venv.py Upgrade parts of test.support #5686
• warnings_helper.py