message: Update scipy to 1.1.0.
  Code uses scipy.signal.stft, which was added in 0.19.
diff: @@ -68,8 +68,8 @@ else
  pip3 install --upgrade numpy==1.14.5
  fi
  -pip2 install scipy==0.18.1
  -pip3 install scipy==0.18.1
  +pip2 install scipy==1.1.0
  +pip3 install scipy==1.1.0
  pip2 install scikit-learn==0.18.1
  pip3 install scikit-learn==0.18.1
  