config.py

import os

class Config:
    '''
    General configuration parent class
    '''
    SQLALCHEMY_DATABASE_URI='postgresql+psycopg2://xv:greatkali@localhost/stocks'

class ProdConfig(Config):
    '''
    Pruduction configuration child class

    Args:
        Config: The parent configuration class with General configuration settings
    '''
    pass

class TestConfig(Config):
    '''
    Testing configuration child class

    Args:
        Config: The parent configuration class with General configuration settings
    '''
    pass

class DevConfig(Config):
    '''
    Development configuration child class

    Args:
        Config: The parent configuration class with General configuration settings
    '''

    DEBUG = True


config_options = {
    'development': DevConfig,
    'production': ProdConfig,
    'test': TestConfig
}