code: def _get_user_ns_object(shell, path):
      
      parts = path.split('.', 1)
      name, attr = parts[0], parts[1:]
      if name in shell.user_ns:
          if attr:
              try:
                  return _getattr(shell.user_ns[name], attr[0])
              except AttributeError:
                  return None
          else:
              return shell.user_ns[name]
      return None
docs: Get object from the user namespace, given a path containing
      zero or more dots.  Return None if the path is not valid.