cli.py 文件源码

def _load_plugin_commands(self):
        if self._loaded_plugin_commands:
            return
        try:
            import pkg_resources
        except ImportError:
            self._loaded_plugin_commands = True
            return

        for ep in pkg_resources.iter_entry_points('flask.commands'):
            self.add_command(ep.load(), ep.name)
        self._loaded_plugin_commands = True