遇到错误：

SError: [Errno 2] No such file or directory: ‘/Users/xxx/xxx/lib/python2.7/site-packages/setuptools-23.0.0-py2.7.egg‘

解决：
$sudo  pip install --upgrade https://storage.googleapis.com/tensorflow/mac/tensorflow-0.6.0-py2-none-any.whl --ignore-installed

安装tensorflow