Sample interface for reading configuration files

config.py

import os


# Configuration variable names as constants
APP_NAME = 'MY_APP_NAME'
APP_AWS_KEY = 'MY_APP_AWS_KEY'
APP_AWS_SECRET_KEY = 'MY_APP_AWS_SECRET_KEY'


class Config(object):

    def __init__(self, config=None):
        """Initialize config with mapping.

        :param config: (Defaults to os.environ) A dict-like config object.
        :type config: dict
        """
        self.config = config if config else os.environ

    def get(self, key, default=None):
        return self.config.get(key, default)

    def get_bool(self, key, default=False):
        return self.config.get(key, str(default)).lower() in ('true', 't', '1')