code: def _set_active_tools(self, plot):
          "Activates the list of active tools"
          for tool in self.active_tools:
              if isinstance(tool, util.basestring):
                  tool_type = TOOL_TYPES[tool]
                  matching = [t for t in plot.toolbar.tools
                              if isinstance(t, tool_type)]
                  if not matching:
                      self.param.warning('Tool of type %r could not be found '
                                         'and could not be activated by default.'
                                         % tool)
                      continue
                  tool = matching[0]
              if isinstance(tool, tools.Drag):
                  plot.toolbar.active_drag = tool
              if isinstance(tool, tools.Scroll):
                  plot.toolbar.active_scroll = tool
              if isinstance(tool, tools.Tap):
                  plot.toolbar.active_tap = tool
              if isinstance(tool, tools.Inspection):
                  plot.toolbar.active_inspect.append(toolf _set_active_tools(self, plot):
          "Activates the list of active tools"
          for tool in self.active_tools:
              if isinstance(tool, util.basestring):
                  tool_type = TOOL_TYPES[tool]
                  matching = [t for t in plot.toolbar.tools
                              if isinstance(t, tool_type)]
                  if not matching:
                      self.param.warning('Tool of type %r could not be found '
                                         'and could not be activated by default.'
                                         % tool)
                      continue
                  tool = matching[0]
              if isinstance(tool, tools.Drag):
                  plot.toolbar.active_drag = tool
              if isinstance(tool, tools.Scroll):
                  plot.toolbar.active_scroll = tool
              if isinstance(tool, tools.Tap):
                  plot.toolbar.active_tap = tool
              if isinstance(tool, tools.Inspection):
                  plot.toolbar.active_inspect.append(tool)
docs: Activates the list of active tools