code: def show(self, block_command_line=False, block_timing=0.05):
          
  
          self._is_open = True
          self._window.show()
          self._window.raise_()
  
          # start the blocking loop
          if block_command_line:
  
              # stop when the window closes
              while self._is_open:
                  _a.processEvents()
                  _t.sleep(block_timing)
  
              # wait a moment in case there is some shutdown stuff.
              _t.sleep(0.5)
  
          return self
docs: Shows the window and raises it.
  
          If block_command_line is 0, this will start the window up and allow you
          to monkey with the command line at the same time. Otherwise, the
          window will block the command line and process events every
          block_timing seconds.