old_contents: # The default locale to use if no locale selector is registered. This
  # defaults to 'en'.
  BABEL_DEFAULT_LOCALE = "zh-hans"
  
  # The timezone to use for user facing dates. This defaults to 'UTC' which
  # also is the timezone your application must use internally.
  BABEL_DEFAULT_TIMEZONE = "Asia/Shanghai"
  
  # The theme to use for the blog. Themes are located at the themes directory,
  # each one in a subdirectory.
  THEME = "casper"
  
  # The title of your blog.
  BLOG_TITLE = "Test Blog"
  
  # Description of your blog. This will also be placed into a meta tag in the
  # head section.
  BLOG_DESCRIPTION = "An empty blog"
  
  # The database name to make available as the db attribute. Default: app.name.
  MONGO_DBNAME = "epen"
  
  # The host name or IP address of your MongoDB server. Default: “localhost”.
  MONGO_HOST = "localhost"
  
  # The port number of your MongoDB server. Default: 27017.
  MONGO_PORT = "27017"
  
  # The user name for mongodb authentication. Default: None
  MONGO_USERNAME ＝ None
  
  # The password for mongodb authentication. Default: None
  MONGO_PASSWORD = None
  
new_contents: # The default locale to use if no locale selector is registered. This
  # defaults to 'en'.
  BABEL_DEFAULT_LOCALE = "zh-hans"
  
  # The timezone to use for user facing dates. This defaults to 'UTC' which
  # also is the timezone your application must use internally.
  BABEL_DEFAULT_TIMEZONE = "Asia/Shanghai"
  
  # The theme to use for the blog. Themes are located at the themes directory,
  # each one in a subdirectory.
  THEME = "casper"
  
  # The title of your blog.
  BLOG_TITLE = "Test Blog"
  
  # Description of your blog. This will also be placed into a meta tag in the
  # head section.
  BLOG_DESCRIPTION = "An empty blog"
  
  # The database name to make available as the db attribute. Default: app.name.
  MONGO_DBNAME = "epen"
  
  # The host name or IP address of your MongoDB server. Default: “localhost”.
  MONGO_HOST = "localhost"
  
  # The port number of your MongoDB server. Default: 27017.
  MONGO_PORT = "27017"
  
  # The user name for mongodb authentication. Default: None
  MONGO_USERNAME = None
  
  # The password for mongodb authentication. Default: None
  MONGO_PASSWORD = None
  
subject: fix a typo in config.py