Can't pickle local object '_createenviron. .encodekey'報錯解決

關於selenium傳參報錯問題，用下面是報錯信息：

Traceback (most recent call last):
  File "D:/code/read_book/main.py", line 327, in <module>
    main()
  File "D:/code/read_book/main.py", line 303, in main
    read_one.start()
  File "C:\Users\23914\AppData\Local\Programs\Python\Python38-32\lib\multiprocessing\process.py", line 121, in start
    self._popen = self._Popen(self)
  File "C:\Users\23914\AppData\Local\Programs\Python\Python38-32\lib\multiprocessing\context.py", line 224, in _Popen
    return _default_context.get_context().Process._Popen(process_obj)
  File "C:\Users\23914\AppData\Local\Programs\Python\Python38-32\lib\multiprocessing\context.py", line 326, in _Popen
    return Popen(process_obj)
  File "C:\Users\23914\AppData\Local\Programs\Python\Python38-32\lib\multiprocessing\popen_spawn_win32.py", line 93, in __init__
    reduction.dump(process_obj, to_child)
  File "C:\Users\23914\AppData\Local\Programs\Python\Python38-32\lib\multiprocessing\reduction.py", line 60, in dump
    ForkingPickler(file, protocol).dump(obj)
AttributeError: Can't pickle local object '_createenviron.<locals>.encodekey'

找了很久的問題，發現是導包問題，把

from multiprocessing import Process, Queue

改為：

from multiprocessing.dummy import Process, Queue

問題解決！