yml文件的更新后工具类:
import os import yaml class YamlUtils(): def __init__(self,folder_name='config'): self.foler_name = folder_name def get_yaml_load(self, file_name): yaml_filename = self.__get_yaml_file(file_name) f = open(yaml_filename, encoding='utf-8') yaml_load = yaml.full_load(f) return yaml_load def __get_yaml_file(self, file_name): """ :param file_name: the filename of the configfile :return: the objection of the config """ try: yaml_file = self.__get_file_path(self.foler_name, file_name) return yaml_file except Exception as e: print("read config file error:" + str(e)) @staticmethod def __get_file_path(folder_name, file_name): """ :param folder_name: the directory of the config ,the default directory is config :param file_name: the filename of the configfile :return: the objection of the config """ try: config_path = os.path.abspath('..') folder_path = os.path.join(config_path, folder_name) file_path = os.path.join(folder_path, file_name) return file_path except Exception as e: print('read config file failed ' + str(e)) def set_yaml(self, file_name,content): """ 调用此方法时,需新建一个YamlUtils().set_yaml(file_name,content) 用原来的设置不会生效 default_flow_style=False : 表示dump后的字典数据全部以yml格式显示,默认为为True sort_keys=False : 表示dump后的字典数据按原有的顺序示,为True时按字母的排序展示,默认为为True """ yaml_filename = self.__get_yaml_file(file_name) f = open(yaml_filename,'w', encoding='utf-8') yaml_dump = yaml.dump(content,f,allow_unicode=True, default_flow_style=False,sort_keys=False) # print("数据更新完成") return yaml_dump
yml文件原有数据顺序:
更改字段值后的顺序:
出现原因是:
yaml.dump(content,f,allow_unicode=True, default_flow_style=False,sort_keys=True)
该行的代码中sort_keys的默认值为True,改为Flase后可修复代顺序变化的问题