mac 安装pip2

Mac默认安装python2.7. 

但是没有pip2

=============

开始安装：

sudo curl https://bootstrap.pypa.io/pip/2.7/get-pip.py -o get-pip.py
python2 get-pip.py

➜  site-packages python2 get-pip.py
DEPRECATION: Python 2.7 reached the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 is no longer maintained. pip 21.0 will drop support for Python 2.7 in January 2021. More details about Python 2 support in pip can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support pip 21.0 will remove support for this functionality.
Defaulting to user installation because normal site-packages is not writeable
Collecting pip<21.0
  Downloading pip-20.3.4-py2.py3-none-any.whl (1.5 MB)
     |████████████████████████████████| 1.5 MB 167 kB/s 
Installing collected packages: pip
  WARNING: The scripts pip, pip2 and pip2.7 are installed in '/Users/dzq/Library/Python/2.7/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
Successfully installed pip-20.3.4

从输出日志可以看到几个信息：

python2.7 已经过时了。 

安装了pip-20.3.4. 

安装路径： /Users/dzq/Library/Python/2.7/bin

但是不在PATH环境

================

为了让pip命令生效，现在要做的事情

sudo cp ~/Library/Python/2.7/bin/pip /usr/local/bin/pip

在任意路径下执行 pip -V

➜  ~ pip -V
pip 20.3.4 from ~/Library/Python/2.7/lib/python/site-packages/pip (python 2.7)

pip2 至此安装成功