code: def selecttabindex(self, window_name, object_name, tab_index):
          
          children = self._get_tab_children(window_name, object_name)
          length = len(children)
          if tab_index < 0 or tab_index > length:
              raise LdtpServerException(u"Invalid tab index %s" % tab_index)
          tab_handle = children[tab_index]
          if not tab_handle.AXEnabled:
              raise LdtpServerException(u"Object %s state disabled" % object_name)
          tab_handle.Press()
          return 1
docs: Select tab based on index.
          
          @param window_name: Window name to type in, either full name,
          LDTP's name convention, or a Unix glob.
          @type window_name: string
          @param object_name: Object name to type in, either full name,
          LDTP's name convention, or a Unix glob. 
          @type object_name: string
          @param tab_index: tab to select
          @type data: integer
  
          @return: 1 on success.
          @rtype: integer