class_docstr: Exception thrown when there is a problem parsing a configuration file.
code: def __str__(self):
      return self.msg
  
imports: from __future__ import division, absolute_import, print_function
  import sys
  import re
  import os
label_desc: Use image node_id 2 for calling the FormatError obj's underlying member method code with example usage: obj.__str__() and returns: self