tensorflow 安装问题

1、本地macOS 10.12.5已经有python2.7，但是安装过程出现了若干问题，后来从python官网下载2.7的installer安装后就正常了。

2、安装tensorflow1.2使用的是官网推荐安装方法，出现了以下警告，据说是因为没有使用源码安装，没有优化完全，SSE4.2是一个CPU指令集，根据提示来看应该是会没法使用这个指令集的好处，后面的AVX AVX2 FMA估计也是类似的意思，不妨碍学习，先记录一下，待解决。

2017-06-27 18:01:42.050324: W tensorflow/core/platform/cpu_feature_guard.cc:45] The TensorFlow library wasn't compiled to use SSE4.2 instructions, but these are available on your machine and could speed up CPU computations.

2017-06-27 18:01:42.050359: W tensorflow/core/platform/cpu_feature_guard.cc:45] The TensorFlow library wasn't compiled to use AVX instructions, but these are available on your machine and could speed up CPU computations.

2017-06-27 18:01:42.050365: W tensorflow/core/platform/cpu_feature_guard.cc:45] The TensorFlow library wasn't compiled to use AVX2 instructions, but these are available on your machine and could speed up CPU computations.

2017-06-27 18:01:42.050371: W tensorflow/core/platform/cpu_feature_guard.cc:45] The TensorFlow library wasn't compiled to use FMA instructions, but these are available on your machine and could speed up CPU computations.

3、eclipse开发的话，interpreters要设置成虚拟空间里的python. 运行测试代码。