UserWarning: detected Windows; aliasing chunkize to chunkize_serial warnings.warn("detected Windo

解决：

UserWarning: detected Windows; aliasing chunkize to chunkize_serial
  warnings.warn("detected Windows; aliasing chunkize to chunkize_serial")

在import  gensim 之前添加下面的语句

import warnings
warnings.filterwarnings(action='ignore', category=UserWarning, module='gensim')