<filename>config.py
import os
basedir = os.path.abspath(os.path.dirname(__file__))


class Config():
    SECRET_KEY = os.environ.get('SECRET_KEY') or 'you-will-never-guess-this'
    SQLALCHEMY_DATABASE_URI = os.environ.get('DATABASE_URL') or \
        'sqlite:///' + os.path.join(basedir, 'app.db')
    SQLALCHEMY_TRACK_MODIFICATIONS = False
    IMAGES_PATH = ['static', 'static/test']
<filename>config.py
import os
basedir = os.path.abspath(os.path.dirname(__file__))


class Config():
    SECRET_KEY = os.environ.get('SECRET_KEY') or 'you-will-never-guess-this'
    SQLALCHEMY_DATABASE_URI = os.environ.get('DATABASE_URL') or \
        'sqlite:///' + os.path.join(basedir, 'app.db')
    SQLALCHEMY_TRACK_MODIFICATIONS = False
    IMAGES_PATH = ['static', 'static/test']