code: def copy_to_clipboard(self, url):
          
          if url is None:
              self.term.flash()
              return
  
          try:
              clipboard_copy(url)
          except (ProgramError, OSError) as e:
              _logger.exception(e)
              self.term.show_notification(
                  'Failed to copy url: {0}'.format(e))
          else:
              self.term.show_notification(
                  ['Copied to clipboard:', url], timeout=1)
docs: Attempt to copy the selected URL to the user's clipboard