命令行输入python，出现一大串警告内容如下所示：

Type "help", "copyright", "credits" or "license" for more information.
Failed calling sys.__interactivehook__
Traceback (most recent call last):
  File "D:\anaconda3\lib\site.py", line 439, in register_readline
    readline.read_history_file(history)
  File "D:\anaconda3\lib\site-packages\pyreadline\rlmain.py", line 165, in read_history_file
    self.mode._history.read_history_file(filename)
  File "D:\anaconda3\lib\site-packages\pyreadline\lineeditor\history.py", line 82, in read_history_file
    for line in open(filename, 'r'):
UnicodeDecodeError: 'gbk' codec can't decode byte 0x9a in position 140: illegal multibyte sequence

解决办法：

找到安装路径D:\anaconda3\Lib\site-packages\pyreadline\lineeditor中的history.py文件，第82行

for line in open(filename, 'r'):

改为

for line in open(filename, 'r', encoding='utf-8'):

完美解决！！