UnicodeDecodeError: 'gbk' codec can't decode byte 0xa6 in position 9737: illegal multibyte sequence

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 with Path(CURRENT_DIR, 'templates', 'technical_500.html').open() as fh:

修改为：

with Path(CURRENT_DIR, 'templates', 'technical_500.html').open(encoding='utf-8') as fh:

https://blog.csdn.net/qq_37232731/article/details/89684409