在Debian中，我在/usr/local/bin中找到了三个短文件:pip; pip3;和pip3.4.都一样:

In Debian, I found three short files in /usr/local/bin: pip; pip3; and pip3.4. All were identical:

#!/usr/bin/python

# -*- coding: utf-8 -*-
import re
import sys

from pip import main

if __name__ == '__main__':
    sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
    sys.exit(main())

通过将pip3(使用sudo)的第一个shebang行更改为

By changing the very first shebang line of pip3 (with sudo) to

#!/usr/bin/python3

然后确保原始点是明确的

Then ensuring that the original pip was explicitly

#!/usr/bin/python2

我所有类似的困惑和错误都消失了.

All of my similar confusion and errors disappeared.