tools.py 文件源码

def reload_once(prefix):
        """Reload all modules once."""
        try_counter = 0
        try:
            for name, module in sys.modules.items():
                if name.startswith(prefix):
                    log.debug("reloading module: '%s'", name)
                    imp.reload(module)
        except OSError as e:
            if try_counter >= Reloader.MAX_RELOAD_TRIES:
                log.fatal("Too many tries to reload and no success. Fail.")
                return
            try_counter += 1
            log.error("Received an error: %s on try %s. Try again.",
                      e, try_counter)
            Reloader.reload_once(prefix)