def _reloader_stat_loop(extra_files=None, interval=1):
    from itertools import chain
    mtimes = {}
    while 1:
        for filename in chain(_iter_module_files(), extra_files or ()):
            try:
                mtime = os.stat(filename).st_mtime
            except OSError:
                continue

            old_time = mtimes.get(filename)
            if old_time is None:
                mtimes[filename] = mtime
                continue
            elif mtime > old_time:
                _log('info', ' * Detected change in %r, reloading' % filename)
                sys.exit(3)
        time.sleep(interval)
%prog lobstr lobstr_index1 lobstr_index2 ...
dataset/ETHPy150Open Eforcers/gae-flask-todo/lib/werkzeug/serving.py/_reloader_stat_loop--crossover with--dataset/ETHPy150Open tanghaibao/jcvi/variation/str.py/lobstr