只安装python_无法在python 2.7上安装pip,只能安装python 3

我一直在尝试为python 2.7安装pip,但我无法做到.我想要pip为python 2.7和python 3工作.这是我到目前为止所做的总结：

python -V

Python 2.7.15

echo $PATH

... /usr/local/bin:/usr/local/sbin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin ...

我还做了一些检查,知道一切都在哪里(我有两个’/usr/local/bin / python’).我相信应该只有一个？

which -a python

/usr/local/bin/python

/usr/local/bin/python

/usr/bin/python

which python

/usr/local/bin/python

ls -l $(which python)

lrwxr-xr-x 1 XXXXX admin 36 May 24 14:28 /usr/local/bin/python -> ../Cellar/python@2/2.7.15/bin/python

当我做：

brew list python | grep pip

我只得到python3的结果,对python2一点都没有

/usr/local/Cellar/python/3.6.5/bin/pip3

我尝试过的东西不起作用,包括：

python get-pip.py

"can't open file 'get-pip.py': [Errno 2] No such file or directory"

brew install pip

"Error: No available formula with the name "pip" "

我感谢您的帮助！