code: def parseFile( self, file_or_filename ):
          
          try:
              file_contents = file_or_filename.read()
          except AttributeError:
              f = open(file_or_filename, "rb")
              file_contents = f.read()
              f.close()
          return self.parseString(file_contents)
docs: Execute the parse expression on the given file or filename.
             If a filename is specified (instead of a file object),
             the entire file is opened, read, and closed before parsing.