themes.py 文件源码

def __load_mergers(self):
        mergers = {}
        for f in os.scandir(os.path.join(
                    os.path.dirname(os.path.realpath(__file__)),
                    "mergers")):
            if f.is_file() and f.name.endswith(".py"):
                name = f.name[:-3]
                mod = __import__("mergers.%s" % name, fromlist=["Merger"])
                try:
                    m = getattr(mod, "Merger")
                    if issubclass(m, BaseMerger):
                        merger = m()
                        logging.debug("Found merger for %s", \
                                merger.get_supported_software().keys())
                        for software in merger.get_supported_software():
                            if software in mergers:
                                mergers[software].append(merger)
                            else:
                                mergers[software] = [ merger ]
                except AttributeError:
                    logging.warning("Merger %s found but doesn't implement a Merger class inheriting from BaseMerger", name)
        return mergers