Python 配置文件加载且自动更新（watchdog），,安装依赖：pip i

Python 配置文件加载且自动更新（watchdog），,安装依赖：pip i

安装依赖：pip installwatchdog

#!/usr/bin/env python3# -*- coding: utf-8 -*-import loggingimport osimport threadingfrom configparser import ConfigParser, NoOptionErrorfrom watchdog.events import FileSystemEventHandlerfrom watchdog.observers import Observerlock = threading.Lock()class ConfigFileModifyHandler(FileSystemEventHandler):    def on_modified(self, event):        if os.path.relpath(event.src_path) == ‘app.config‘:            Config.get_instance().load_config()class Config(object):    __instance = None    def __init__(self, config_file_path=None):        logging.debug(‘配置初始化‘)        self.config = ConfigParser()        self.config_file_path = config_file_path or os.path.join(os.path.dirname(__file__), ‘../app.config‘)        self.load_config()        self._init_config_file_observer()    def _init_config_file_observer(self):        logging.debug(‘配置文件监控‘)        event_handler = ConfigFileModifyHandler()        observer = Observer()        observer.schedule(event_handler, path=os.path.dirname(self.config_file_path), recursive=False)        observer.setDaemon(True)        observer.start()    @staticmethod    def get_instance():        if Config.__instance:            return Config.__instance        try:            lock.acquire()            if not Config.__instance:                Config.__instance = Config()        finally:            lock.release()        return Config.__instance    def load_config(self):        logging.debug(‘加载配置‘)        self.config.read(self.config_file_path, ‘utf-8‘)    def get(self, key, default=None):        """        获取配置        :param str key: 格式 [section].[key] 如：app.name        :param Any default: 默认值        :return:        """        map_key = key.split(‘.‘)        if len(map_key) < 2:            return default        section = map_key[0]        if not self.config.has_section(section):            return default        option = ‘.‘.join(map_key[1:])        try:            return self.config.get(section, option)        except NoOptionError:            return defaultdef get(key, default=None):    """    获取配置    :param str key: 格式 [section].[key] 如：app.name    :param Any default: 默认值    :return:    """    return Config.get_instance().get(key, default)

Python 配置文件加载且自动更新（watchdog）