为Python 3.6更新pip3？

Question

我刚刚使用自制程序从Python3.4升级到Python3.6。

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

但它没有为Python3.6升级pip。相反，它在Python 3.4中找到pip3，并说“需求已满足”：

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，它在Python 3.4中，而不是3.6中。我该如何解决？

$ pip3 -V
pip 9.0.1 from /Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages (python 3.4)

Answer 1

安装并尝试使用不带^{}的Python3.4和3.6不是一个好主意。

但是，您可以告诉mac上的终端要与哪个Python pip一起使用：

python3.6 -m pip install --upgrade pip setuptools wheel

如果需要在旧版python3上使用pip，可以将python3.6更改为python3.4。

Answer 2

当我执行python36 -m pip3 install -r requirements.txt时，得到错误：

/usr/bin/python36: No module named pip3

我的解决方案如下：

python3.6 -m ensurepip    
python3.6 -m pip install -r requirements.txt

Answer 3

临时修复可以是：

alias "pip3.6"="python3.6 -m pip $1"

这将允许您去pip3.6 install somemodule或pip3.6 install --upgrade somemodule