安装命令：

$ sudo pip install https://storage.googleapis.com/tensorflow/mac/tensorflow-0.5.0-py2-none-any.whl

报错：

ERROR: matplotlib 1.3.1 requires nose, which is not installed.

ERROR: matplotlib 1.3.1 requires tornado, which is not installed.

Installing collected packages: numpy, six, tensorflow

  Found existing installation: numpy 1.8.0rc1

ERROR: Cannot uninstall 'numpy'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.

解决：

sudo easy_install nose

sudo easy_install tornado

强制安装高版本：sudo pip install numpy --ignore-installed numpy

six强制安装高版本：sudo pip install six  --upgrade --ignore-installed six