Python:无法卸载'；六个'；当pip安装tld时

安装tld模块时出错，无法卸载现有的“六”模块

$ pip install tld
Collecting tld
  Using cached https://files.pythonhosted.org/packages/fa/78/dbeaeb20db795c42deb81271fd65a35c040ce2e946024eaeef5c6b184176/tld-0.9-py2.py3-none-any.whl
Collecting six>=1.9 (from tld)
  Using cached https://files.pythonhosted.org/packages/67/4b/141a581104b1f6397bfa78ac9d43d8ad29a7ca43ea90a2d863fe3056e86a/six-1.11.0-py2.py3-none-any.whl
Installing collected packages: six, tld
  Found existing installation: six 1.4.1
Cannot uninstall 'six'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.

如果出现上述错误，请尝试以下命令安装six-1.11.0和tld-0.9

$pip安装tld--忽略已安装的六个--用户

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用法：

pip安装tld——忽略已安装的六个

我在安装pytest时遇到同样的问题。。。似乎与莫哈韦osx有关。。。我已经通过以下方式修复了它：

• brew更新
• sudo安装程序-pkg/Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg-目标/
• brew重新安装python@2

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升级Python2.7.16修复了我在Mojave的问题，谢谢。这应该是MacOs用户的首选答案

$ pip install tld
Collecting tld
  Using cached https://files.pythonhosted.org/packages/fa/78/dbeaeb20db795c42deb81271fd65a35c040ce2e946024eaeef5c6b184176/tld-0.9-py2.py3-none-any.whl
Collecting six>=1.9 (from tld)
  Using cached https://files.pythonhosted.org/packages/67/4b/141a581104b1f6397bfa78ac9d43d8ad29a7ca43ea90a2d863fe3056e86a/six-1.11.0-py2.py3-none-any.whl
Installing collected packages: six, tld
  Found existing installation: six 1.4.1
Cannot uninstall 'six'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.

$ pip install tld --ignore-installed six --user
Collecting tld
  Using cached https://files.pythonhosted.org/packages/fa/78/dbeaeb20db795c42deb81271fd65a35c040ce2e946024eaeef5c6b184176/tld-0.9-py2.py3-none-any.whl
Collecting six
  Using cached https://files.pythonhosted.org/packages/67/4b/141a581104b1f6397bfa78ac9d43d8ad29a7ca43ea90a2d863fe3056e86a/six-1.11.0-py2.py3-none-any.whl
Installing collected packages: six, tld
Successfully installed six-1.11.0 tld-0.9