RustPython/extra_tests/generator/not_impl_modules_footer.txt

def dir_of_mod_or_default(module, default=None):
    try:
        mod = set(dir(__import__(module)))
        return mod
    except (ImportError, AttributeError):
        return default

mod_names = [
    name.decode() for name, ext in map(os.path.splitext, os.listdir(libdir))
    if ext == b'.py' or os.path.isdir(f'{libdir}/{name}')]
mod_names += list(sys.builtin_module_names)

not_imported = {'not imported'}
rustpymods = {
    mod: (dir_of_mod_or_default(mod, not_imported) if mod not in ("this", "antigravity") else None)
    for mod in mod_names
}

for modname, cpymod in cpymods.items():
    if modname in rustpymods:
        rustpymod = rustpymods[modname]
        if rustpymod:
            if rustpymod == not_imported:
                print(f"{modname} (existing but not importable)")
                continue
            for item in cpymod - rustpymod:
                print(f"{modname}.{item}")
    else:
        print(f"{modname} (entire module)")