mac下查找python包存放路径site-packages

想查找mac下python的site-packages目录，如果用网上搜的安装目录之类的去找，进去每一层很多都是软链接形式存在，比较浪费时间；

比较快捷的方法如下：

MacBook-Pro-6:Scrapy-1.5.0 haizhi$ python

Python 2.7.10 (default, Jul 30 2016, 18:31:42) 

[GCC 4.2.1 Compatible Apple LLVM 8.0.0 (clang-800.0.34)] on darwin

Type "help", "copyright", "credits" or "license" for more information.

>>> import sys

>>> print(sys.path)

['', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python27.zip', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-old', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload', '/Library/Python/2.7/site-packages', '/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python', '/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/PyObjC', '/Library/Python/2.7/site-packages/Scrapy-1.5.0-py2.7.egg']

>>>

方法2

#pip安装的包列表
pip list

# 查看json安装路径
>>> import json
>>> json
<module 'json' from '/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/json/__init__.py'>
>>>

方法3-推荐

pip3 install xxx
#如果xxx第二次安装，就会报错，指出xxx已经安装，安装目录为....