brain.py 文件源码

def get_plugins(cls):
        """
        Dynamically loads all the plugins in the plugins folder and sorts
        them by the PRIORITY key. If no PRIORITY is defined for a given
        plugin, a priority of 0 is assumed.
        """

        logger = logging.getLogger(__name__)
        locations = [
            dingdangpath.PLUGIN_PATH,
            dingdangpath.CONTRIB_PATH,
            dingdangpath.CUSTOM_PATH
        ]
        logger.debug("Looking for plugins in: %s",
                     ', '.join(["'%s'" % location for location in locations]))
        plugins = []
        exclude_plugins = []
        # plugins that are not allow to be call via Wechat or Email
        thirdparty_exclude_plugins = ['NetEaseMusic']
        for finder, name, ispkg in pkgutil.walk_packages(locations):
            try:
                loader = finder.find_module(name)
                mod = loader.load_module(name)
            except Exception:
                logger.warning("Skipped plugin '%s' due to an error.", name,
                               exc_info=True)
            else:
                if hasattr(mod, 'WORDS'):
                    logger.debug("Found plugin '%s' with words: %r", name,
                                 mod.WORDS)
                    plugins.append(mod)
                    if name in thirdparty_exclude_plugins:
                        exclude_plugins.append(mod)
                else:
                    logger.warning("Skipped plugin '%s' because it misses " +
                                   "the WORDS constant.", name)
        plugins.sort(key=lambda mod: mod.PRIORITY if hasattr(mod, 'PRIORITY')
                     else 0, reverse=True)
        return (plugins, exclude_plugins)