我刚刚使用Homebrew从Python 3.4升级到Python 3.6.
输出状态：
Pip, setuptools, and wheel have been installed. To update them
pip3 install --upgrade pip setuptools wheel
You can install Python packages with
pip3 install <package>
They will install into the site-package directory
/usr/local/lib/python3.6/site-packages
我试着跑
pip3 install --upgrade pip setuptools wheel
但它不会升级Python 3.6的pip.相反,它在Python 3.4中找到pip3并说“满足要求”：
Requirement already up-to-date: pip in /Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages
Collecting setuptools
Downloading setuptools-33.1.1-py2.py3-none-any.whl (472kB)
100% |████████████████████████████████| 481kB 1.0MB/s
Collecting wheel
Downloading wheel-0.29.0-py2.py3-none-any.whl (66kB)
100% |████████████████████████████████| 71kB 5.7MB/s
Installing collected packages: setuptools, wheel
Found existing installation: setuptools 12.0.5
Uninstalling setuptools-12.0.5:
Successfully uninstalled setuptools-12.0.5
Successfully installed setuptools-33.1.1 wheel-0.29.0
当我检查pip版本时,它是在Python 3.4中,而不是3.6.我该如何解决这个问题？
$pip3 -V
pip 9.0.1 from /Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages (python 3.4)
解决方法:
安装并尝试使用不含virtualenv的Python3.4和3.6并不是一个好主意.
但是,您可以告诉Mac上的终端使用哪个Python点：
python3.6 -m pip install --upgrade pip setuptools wheel
如果需要在较旧的Python3版本上使用pip,可以将python3.6更改为python3.4.