old_contents: import os
  basedir = os.path.abspath(os.path.dirname(__file__))
  
  
  class Config:
      SECRET_KEY = os.environ.get('SECRET_KEY') or 'hard to guess string'
      SQLALCHEMY_COMMIT_ON_TEARDOWN = True
      SQLALCHEMY_TRACK_MODIFICATIONS = False
      WTF_CSRF_ENABLED = False
      #MAIL_SERVER = 'smtp.googlemail.com'
      #MAIL_PORT = 587
      #MAIL_USE_TLS = True
      #MAIL_USERNAME = os.environ.get('MAIL_USERNAME')
      #MAIL_PASSWORD = os.environ.get('MAIL_PASSWORD')
      #FLASKY_MAIL_SUBJECT_PREFIX = '[Flasky]'
      #FLASKY_MAIL_SENDER = 'Flasky Admin <flasky@example.com>'
      #FLASKY_ADMIN = os.environ.get('FLASKY_ADMIN')
  
      @staticmethod
      def init_app(app):
          pass
  
  
  class DevelopmentConfig(Config):
      DEBUG = True
      SQLALCHEMY_DATABASE_URI = os.environ.get('DEV_DATABASE_URL') or \
          'sqlite:///' + os.path.join(basedir, 'data-dev.sqlite')
  
  
  class TestingConfig(Config):
      TESTING = True
      SQLALCHEMY_DATABASE_URI = os.environ.get('TEST_DATABASE_URL') or \
          'sqlite:///' + os.path.join(basedir, 'data-test.sqlite')
  
  
  class ProductionConfig(Config):
      SQLALCHEMY_DATABASE_URI = os.environ.get('DATABASE_URL') or \
          'sqlite:///' + os.path.join(basedir, 'data.sqlite')
  
  
  config = {
      'development': DevelopmentConfig,
      'testing': TestingConfig,
      'production': ProductionConfig,
  
      'default': os.environ.get('CONFIG') or DevelopmentConfig
  }
  
new_contents: import os
  basedir = os.path.abspath(os.path.dirname(__file__))
  
  
  class Config:
      SECRET_KEY = os.environ.get('SECRET_KEY') or 'hard to guess string'
      SQLALCHEMY_COMMIT_ON_TEARDOWN = True
      SQLALCHEMY_TRACK_MODIFICATIONS = False
      WTF_CSRF_ENABLED = False
      #MAIL_SERVER = 'smtp.googlemail.com'
      #MAIL_PORT = 587
      #MAIL_USE_TLS = True
      #MAIL_USERNAME = os.environ.get('MAIL_USERNAME')
      #MAIL_PASSWORD = os.environ.get('MAIL_PASSWORD')
      #FLASKY_MAIL_SUBJECT_PREFIX = '[Flasky]'
      #FLASKY_MAIL_SENDER = 'Flasky Admin <flasky@example.com>'
      #FLASKY_ADMIN = os.environ.get('FLASKY_ADMIN')
  
      @staticmethod
      def init_app(app):
          pass
  
  
  class DevelopmentConfig(Config):
      DEBUG = True
      SQLALCHEMY_DATABASE_URI = os.environ.get('DEV_DATABASE_URL') or \
          'sqlite:///' + os.path.join(basedir, 'data-dev.sqlite')
  
  
  class TestingConfig(Config):
      TESTING = True
      SQLALCHEMY_DATABASE_URI = os.environ.get('TEST_DATABASE_URL') or \
          'sqlite:///' + os.path.join(basedir, 'data-test.sqlite')
  
  
  class ProductionConfig(Config):
      SQLALCHEMY_DATABASE_URI = os.environ.get('DATABASE_URL') or \
          'sqlite:///' + os.path.join(basedir, 'data.sqlite')
  
  
  config = {
      'development': DevelopmentConfig,
      'testing': TestingConfig,
      'production': ProductionConfig,
  
      'default': ProductionConfig if os.environ.get('CONFIG') == "production" else DevelopmentConfig
  }
  
  
  
subject: Fix config