code: def tryImportClass(self):
          
          logger.info("Importing: {}".format(self.fullClassName))
          self._triedImport = True
          self._exception = None
          self._cls = None
          try:
              for pyPath in self.pythonPath.split(':'):
                  if pyPath and pyPath not in sys.path:
                      logger.debug("Appending {!r} to the PythonPath.".format(pyPath))
                      sys.path.append(pyPath)
              self._cls = import_symbol(self.fullClassName) # TODO: check class?
          except Exception as ex:
              self._exception = ex
              logger.warn("Unable to import {!r}: {}".format(self.fullClassName, ex))
              if DEBUGGING:
                  raise
docs: Tries to import the registered class.
              Will set the exception property if and error occurred.