Python3 UnicodeDecodeError，无法读取cp1251编码的文件

Question

我已经将Ubuntu从14.04 (Python3.4.3)升级到16.04 (Python3.5.2)。现在，我的脚本无法读取编码cp1251的文件：

with open(fs[0], encoding='cp1251') as f:
    lines = f.readlines()
    f.close()

它给出了一个错误：

Traceback (most recent call last):
  File "/home/michael/PycharmProjects/Rad/get_info.py", line 9, in <module>
    r.get_tests()
  File "/home/michael/PycharmProjects/Rad/rad.py", line 166, in get_tests
    s = f.readlines()
  File "/usr/lib/python3.5/encodings/cp1251.py", line 23, in decode
    return codecs.charmap_decode(input,self.errors,decoding_table)[0]
UnicodeDecodeError: 'charmap' codec can't decode byte 0x98 in position 13: character maps to <undefined>

Process finished with exit code 1

调试将导致文件/usr/lib/python3.5/encodings/cp1251.py中的此代码

class IncrementalDecoder(codecs.IncrementalDecoder):
    def decode(self, input, final=False):
        return codecs.charmap_decode(input,self.errors,decoding_table)[0]

在这个Python版本中更改了什么，以及如何避免此错误？

Answer 1

因此，我发现一种方法修复了这个在Python2和3中都有效的错误：

import codecs
...........
with codecs.open(fs[0], encoding='cp1251', errors='replace') as f:
    lines = f.readlines()
    f.close()