python bytes.decode() 无法解码 git 对象

Question

我有以下代码：

import zlib
import os

...

    for current, subs, files in os.walk('.'):
        for filename in files:
            
            # in format ##/#{38}
            
            path = os.path.join(current, filename)[2:]

            # 'info/' and 'pack/' exist
            # don't worry about packed files
            # assume empty (excluding . and ..)

            with open(path, 'r') as file:
                
                # returns bytes object
                # assuming UTF-8 encoding (default) vs. legacy
                # https://git-scm.com/docs/git-commit#_discussion
                # .decode() also defaults to utf-8
                
                print(zlib.decompress(file.read()).decode())

当前目录是

.git/objects/

，我收到以下错误：

    print(zlib.decompress(file.read()).decode())
                          ^^^^^^^^^^^
  File "<frozen codecs>", line 322, in decode
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb1 in position 8: invalid start byte

我试图分析的

.git

目录没有指定替代编码方法。