JFIFxxC      C  " }!1AQa"q2#BR$3br %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz w!1AQaq"2B #3RbrJFIFxxC      C  " }!1AQa"q2#BR$3br %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz w!1AQaq"2B #3Rbrimport contextlib from .py39 import import_helper @contextlib.contextmanager def isolated_modules(): """ Save modules on entry and cleanup on exit. """ (saved,) = import_helper.modules_setup() try: yield finally: import_helper.modules_cleanup(saved) vars(import_helper).setdefault('isolated_modules', isolated_modules)