Instead of long and uninteresting output for all checked libraries, only print found issues by default. Add a new -v/--verbose option to list all symbols (useful for checking that the script finds the symbols).
mypy
Tools/build/check_warnings.py
Tools/build/deepfreeze.py
Tools/build
generate_stdlib_module_names
check_extension_modules
Tools/build/update_file.py
Tools/build/verify_ensurepip_wheels.py