A python gist example to settings with environments. You must create a file called settings.cfg at the root of your project and put their keys in this file. It will not be committed to the repository.

.gitignore

settings.cfg

settings.cfg

[s3-dev]
s3_key: ---
secret_key: ---

[s3-hlg]
s3_key: ---
secret_key: ---

[s3-prod]
s3_key: ---
secret_key: ---

settings.py

import os
import configparser


class Settings():

    def __init__(self):
        self.environment = os.environ['ENVIRONMENT'] # dev / hlh / prod
        self.BASE_DIR = os.path.abspath(os.path.dirname(__file__))  
        
        self.__config = configparser.ConfigParser()
        self.__config.read(os.path.join(self.BASE_DIR, 'settings.cfg'))
        
    def s3_credentials(self):
        return {
            's3_key': self.__config.get('s3-{}'.format(self.environment), 'key'),
            'secret_key': self.__config.get('s3-{}'.format(self.environment), 'secret_key')
        }