sudo pip install six --upgrade
Requirement already up-to-date: six in /Library/Python/2.7/site-packages
Cleaning up...
pip search six
six - Python 2 and 3 compatibility utilities
INSTALLED: 1.9.0 (latest)
python -c "import six; print six.version"
1.4.1
which -a python
/usr/bin/python
which -a pip
/usr/local/bin/pip
这里出了什么问题?无法升级六!
pip uninstall six
。然后进行安装。 - Craig S. Andersonpython
和pip
不属于同一个解释器。请尝试使用python -m pip install --upgrade six
。如果这没有帮助,请考虑将which -a python
和which -a pip
的输出添加到您的问题中。 - cel