Python 导入gensim后WARNING: g++ not available

问题：

In [1]: import gensim

d:\Program Files\Anaconda2\lib\site-packages\gensim\utils.py:865: UserWarning: detected Windows; aliasing chunkize to chunkize_serial
  warnings.warn("detected Windows; aliasing chunkize to chunkize_serial")
Using Theano backend.
WARNING (theano.configdefaults): g++ not available, if using conda: `conda install m2w64-toolchain`

WARNING (theano.configdefaults): g++ not detected ! Theano will be unable to execute optimized C-implementations (for both CPU and GPU) and will default to Python implementations. Performance will be severely degraded. To remove this warning, set Theano flags cxx to an empty string.

解决：

conda install mingw libpython

参考：

http://www.cnblogs.com/zhuangliu/p/5403458.html