1. 查看python的packages所在位置等信息
Global site-packages ("dist-packages")
python -m site
或
python -c "import site; print(site.getsitepackages())"
per user site-packages
python -m site --user-site
2. 查看某package所在位置
pip show --verbose tushare
3. dist-packages和site-packages区别
. sudo apt-get install 安装的package存放在 /usr/lib/python2.7/dist-packages目录中
. pip 或者 easy_install安装的package存放在/usr/local/lib/python2.7/dist-packages目录中
. 手动从源代码安装的package存放在site-packages目录中
参考：
https://stackoverflow.com/questions/122327/how-do-i-find-the-location-of-my-python-site-packages-directory
http://blog.sina.com.cn/s/blog_4ddef8f80102v57b.html
https://pip.pypa.io/en/stable/reference/pip_show/
