Python 终端打开后报错

Question

当我试图通过 python 命令从终端打开 python 时，我突然遇到了一个错误，终端工作正常，但我想了解为什么会这样，谢谢提前。

PS C:\Users\blackbird> py
AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
Failed calling sys.__interactivehook__
Traceback (most recent call last):
  File "C:\Users\blackbird\AppData\Local\Programs\Python\Python38\lib\site.py", line 440, in register_readline
    readline.read_history_file(history)
  File "C:\Users\blackbird\AppData\Local\Programs\Python\Python38\lib\site-packages\pyreadline\rlmain.py", line 165, in read_history_file
    self.mode._history.read_history_file(filename)
  File "C:\Users\blackbird\AppData\Local\Programs\Python\Python38\lib\site-packages\pyreadline\lineeditor\history.py", line 82, in read_history_file
    for line in open(filename, 'r'):
  File "C:\Users\blackbird\AppData\Local\Programs\Python\Python38\lib\encodings\cp1254.py", line 23, in decode
    return codecs.charmap_decode(input,self.errors,decoding_table)[0]
UnicodeDecodeError: 'charmap' codec can't decode byte 0x9e in position 886: character maps to <undefined>
>>>

Answer 1

我注意到 pyreadline 软件包是无意中从 'requirements.txt' 文件安装到我的计算机上的。

来自documentation：

The pyreadline package is a python implementation of GNU readline functionality it is based on the ctypes based UNC readline package by Gary Bishop. It is not complete. It has been tested for use with windows 2000 and windows xp.
...
Version 2.1 of pyreadline has been verfied for Python 2.7, and 3.4, 3.5.

删除 pyreadline 包解决了问题。

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