Mac下安装pip报错

python完全不了解，今天根据教程装好python，附上参考链接 在Mac OSX中搭建Python集成开发环境图解 – 码农网

然后想调试一个程序，说要装pip，于是上python官网，点开pypi

密密麻麻一片，看不太懂是什么，于是点开左侧导航中的PyPI Tutorial进去看看

第一段说当前文档不再维护，有更新的资料并给出了链接，直接点进去了

pip是用于安装和管理python包的工具，那Installing Packages应该有些信息是我要的，点进去

在目录第第二条就看到的安装pip的描述，点进去,往下看很快就找到安装pip的描述

根据文档的描述，打开终端输pip install -U pip setup tools，提示pip不是命令，我没仔细研究，采用下方的otherwise中的方法，下载get-pip.py，然后用终端执行，

Last login: Tue Nov 29 19:27:00 on ttys001

192:Downloads lishengda$ python get-pip.py

Collecting pip

  Downloading pip-9.0.1-py2.py3-none-any.whl (1.3MB)

    100% |████████████████████████████████| 1.3MB 95kB/s 

Collecting wheel

  Downloading wheel-0.29.0-py2.py3-none-any.whl (66kB)

    100% |████████████████████████████████| 71kB 89kB/s 

Installing collected packages: pip, wheel

Exception:

Traceback (most recent call last):

  File "/var/folders/wz/_d4crmhd0nn5qlffdt3s4c3c0000gp/T/tmpRARzV1/pip.zip/pip/basecommand.py", line 215, in main

    status = self.run(options, args)

  File "/var/folders/wz/_d4crmhd0nn5qlffdt3s4c3c0000gp/T/tmpRARzV1/pip.zip/pip/commands/install.py", line 342, in run

    prefix=options.prefix_path,

  File "/var/folders/wz/_d4crmhd0nn5qlffdt3s4c3c0000gp/T/tmpRARzV1/pip.zip/pip/req/req_set.py", line 784, in install

    **kwargs

  File "/var/folders/wz/_d4crmhd0nn5qlffdt3s4c3c0000gp/T/tmpRARzV1/pip.zip/pip/req/req_install.py", line 851, in install

    self.move_wheel_files(self.source_dir, root=root, prefix=prefix)

  File "/var/folders/wz/_d4crmhd0nn5qlffdt3s4c3c0000gp/T/tmpRARzV1/pip.zip/pip/req/req_install.py", line 1064, in move_wheel_files

    isolated=self.isolated,

  File "/var/folders/wz/_d4crmhd0nn5qlffdt3s4c3c0000gp/T/tmpRARzV1/pip.zip/pip/wheel.py", line 345, in move_wheel_files

    clobber(source, lib_dir, True)

  File "/var/folders/wz/_d4crmhd0nn5qlffdt3s4c3c0000gp/T/tmpRARzV1/pip.zip/pip/wheel.py", line 316, in clobber

    ensure_dir(destdir)

  File "/var/folders/wz/_d4crmhd0nn5qlffdt3s4c3c0000gp/T/tmpRARzV1/pip.zip/pip/utils/__init__.py", line 83, in ensure_dir

    os.makedirs(path)

  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/os.py", line 157, in makedirs

    mkdir(name, mode)

OSError: [Errno 13] Permission denied: '/Library/Python/2.7/site-packages/pip'

报错，不知何故，想起来我装的python是3.4，于是把指令换成python3 get-pip.py试了下，果然通过。

192:Downloads lishengda$ python3 get-pip.py

Collecting pip

  Using cached pip-9.0.1-py2.py3-none-any.whl

Collecting wheel

  Using cached wheel-0.29.0-py2.py3-none-any.whl

Installing collected packages: pip, wheel

  Found existing installation: pip 8.1.1

    Uninstalling pip-8.1.1:

      Successfully uninstalled pip-8.1.1

Successfully installed pip-9.0.1 wheel-0.29.0

192:Downloads lishengda$ 

未及深究，很多地方带猜的，先记下，以后明白了再更新