settings.py

import pydantic
from enum import Enum
import logging


class LogLevelEnum(Enum):
    CRITICAL = "CRITICAL"
    ERROR = "ERROR"
    WARNING = "WARNING"
    INFO = "INFO"
    DEBUG = "DEBUG"
    NOTSET = "NOTSET"


class Settings(pydantic.BaseSettings):
    postgres_dsn: pydantic.PostgresDsn
    db_connect_timeout_seconds: int = 10
    log_level: LogLevelEnum = LogLevelEnum.INFO


settings = Settings()
logging.basicConfig(level=settings.log_level.value)

Set a log level with pydantic settings!