py.lib.aw_config: src/aw_config/env.py annotate

awgur@0	1 # coding: utf-8
awgur@0	2
awgur@0	3 from os import environ as sysenv
awgur@0	4 from typing import Optional, Any
awgur@0	5 from .error import Error
awgur@0	6
awgur@0	7
awgur@0	8 class EnvConfigError(Error):
awgur@0	9 def __init__(self, param_name: str, message: Any):
awgur@0	10 super().__init__(f'Ошибка в параметре: {param_name} - {message}')
awgur@0	11
awgur@0	12
awgur@0	13 def get_env(name: str, type_name: type, default: Optional[Any] = None, mandatory: bool = False):
awgur@0	14 try:
awgur@0	15 return type_name(sysenv[name])
awgur@0	16
awgur@0	17 except (ValueError, TypeError) as e:
awgur@0	18 raise EnvConfigError(name, f'Ошибка преобразования типа - {e}')
awgur@0	19
awgur@0	20 except KeyError:
awgur@0	21 if default is None and not mandatory:
awgur@0	22 raise EnvConfigError(name, 'Не установлен параметр')
awgur@0	23
awgur@0	24 else:
awgur@0	25 return default

py.lib.aw_config