code: def cleanup():
          
          for install_dir in linters.INSTALL_DIRS:
              try:
                  shutil.rmtree(install_dir, ignore_errors=True)
              except Exception:
                  print(
                      "{0}\nFailed to delete {1}".format(
                          traceback.format_exc(), install_dir
                      )
                  )
                  sys.stdout.flush()
docs: Delete standard installation directories.