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[備忘録]Python YAML ログ 書き方

Posted at

pyファイル

import logging

class Common:
    config: dict
    logger: logging.Logger

    def __init__(self):
        config_file = load_yaml('./basic.yaml')
        self.config = load_yaml(config_file['configuration_file'])
        filename = "xxx"
        create_dir(os.path.dirname(filename))
        logging.basicConfig(
            filename=filename,
            level=get_log_level(self.config['log']['level']),
            format=self.config['log']['format']
        )
        self.logger = logging.getLogger()

    
    # 設定ファイルのパスを取得する
    def get_filepath(dirname: str, filename: str) -> os.path:
        return os.path.abspath(os.path.join(os.path.dirname(__file__), f'./{dirname}/{filename}'))
    
    # yaml を読み込む
    def load_yaml(filename: str) -> dict:
        file_path: str = get_filepath(dirname='configures', filename=filename)
        try:
            with Path(file_path).open('r', encoding='utf-8') as stream:
                return yaml.full_load(stream)
        except FileNotFoundError:
            print(f'{file_path} が見つかりません。')
            raise
    
    # ディレクトリを作成する
    def create_dir(dirname: str) -> None:
        os.makedirs(dirname, exist_ok=True)

    # ログレベルを返す
    #   指定が非対応の場合は DEBUG
    def get_log_level(level: str) -> int:
        if level == 'info':
            return logging.INFO
        elif level == 'warn':
            return logging.WARN
        elif level == 'error':
            return logging.ERROR
        return logging.DEBUG

yamlファイル

# ログ出力に関連する設定
log:
  # ログ出力先ディレクトリ
  #   app からの相対パスまたは絶対パスで記述すること
  dir: './log'
  # ログ・ファイル名
  #   datetime の書式に従うこと
  filename: '%Y-%m-%d.log'
  # ログ書式
  #   logging の書式に従うこと
  format: '%(asctime)s:%(levelname)s:%(message)s'
  # ログレベル
  #   'debug', 'info', 'warn', 'error' に対応
  level: 'debug'
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