python - 通过 pip 安装 SQLAlchemy 时出现 UnicodeDecodeError

Question

我正在尝试通过 pip 安装 SQLAlchemy。然而，我失败了。

我的操作系统是Windows 10中文版，使用的是Python 3.6.0。

我在互联网上搜索了我的问题，得到了很多解决方案，说我可以将 sys.setdefaultencoding 添加到某个文件中。但我使用的是Python3。

我还发现了一个issue on Github这似乎正是我的问题。但是将我的代码页更改为 866 或 65001 根本不起作用...

信息如下:

C:\Users\59740>pip install SQLAlchemy
Collecting SQLAlchemy
  Using cached SQLAlchemy-1.1.4.tar.gz
Installing collected packages: SQLAlchemy
  Running setup.py install for SQLAlchemy ... error
Exception:
Traceback (most recent call last):
  File "c:\program files\python36\lib\site-packages\pip\compat\__init__.py", line 73, in console_to_str
    return s.decode(sys.__stdout__.encoding)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb6 in position 34: invalid start byte

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:\program files\python36\lib\site-packages\pip\basecommand.py", line 215, in main
    status = self.run(options, args)
  File "c:\program files\python36\lib\site-packages\pip\commands\install.py", line 342, in run
    prefix=options.prefix_path,
  File "c:\program files\python36\lib\site-packages\pip\req\req_set.py", line 784, in install
    **kwargs
  File "c:\program files\python36\lib\site-packages\pip\req\req_install.py", line 878, in install
    spinner=spinner,
  File "c:\program files\python36\lib\site-packages\pip\utils\__init__.py", line 676, in call_subprocess
    line = console_to_str(proc.stdout.readline())
  File "c:\program files\python36\lib\site-packages\pip\compat\__init__.py", line 75, in console_to_str
    return s.decode('utf_8')
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb6 in position 34: invalid start byte

Answer 1

打开\python36\lib\site-packages\pip\compat__init__.py 75return s.decode('utf_8') 更改为

return s.decode('cp936')

其他:chcp cmd 显示当前代码页