parameters: (fn, section, key, default=None)
docstring: Wrapper for ConfigParser functions that allows you to return a default
      value on failure.
  
      Keyword Arguments:
      fn -- config parser function to use
      section -- section of config file to read
      key -- key to attempt to access from section
      default -- default value to return on error
docstring_summary: Wrapper for ConfigParser functions that allows you to return a default
      value on failure.
docstring_tokens: Wrapper for ConfigParser functions that allows you to return a default value on failure .
function: def cfg_get(fn, section, key, default=None):
      """Wrapper for ConfigParser functions that allows you to return a default
      value on failure.
  
      Keyword Arguments:
      fn -- config parser function to use
      section -- section of config file to read
      key -- key to attempt to access from section
      default -- default value to return on error
      """
      try:
          v = fn(section, key)
          return v
      except ConfigParser.NoOptionError:
          return default
function_tokens: def cfg_get ( fn , section , key , default = None ) : try : v = fn ( section , key ) return v except ConfigParser . NoOptionError : return default