mac下安装pip

1. mac下使用sudo easy_install pip会报错。
2. 所以直接下载pip压缩包并解压。下载压缩包:pip-19.2.1.tar.gz
3. 打开终端，从终端进入pip解压后的目录。
4. 然后执行sudo python setup.py install安装pip.
   附pip官网

注意：

• python setup.py install 前要加sudo，不然会报权限错误。

  
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The following error occurred while trying to add or remove files in the
installation directory:

[Errno 13] Permission denied: '/Library/Python/2.7/site-packages/test-easy-install-8868.pth'

The installation directory you specified (via --install-dir, --prefix, or
the distutils default setting) was:

/Library/Python/2.7/site-packages/

Perhaps your account does not have write access to this directory? If the
installation directory is a system-owned directory, you may need to sign in
as the administrator or "root" account. If you do not have administrative
access to this machine, you may wish to choose a different installation
directory, preferably one that is listed in your PYTHONPATH environment
variable.