test_path.py 文件源码

def teardown_environment():
    """Restore things that were remembered by the setup_environment function
    """
    (oldenv, os.name, sys.platform, path.get_home_dir, IPython.__file__, old_wd) = oldstuff
    os.chdir(old_wd)
    reload(path)

    for key in list(env):
        if key not in oldenv:
            del env[key]
    env.update(oldenv)
    if hasattr(sys, 'frozen'):
        del sys.frozen

# Build decorator that uses the setup_environment/setup_environment