pillow get a float instead of an integer

[stonebig]

trying (on Python-3.4 64bit, windows 10):

python chainer-gogh.py -m nin -i cat.png -s style_0.png -o zzz -g -1

I get an error I don't know what to do about:

load model... nin_imagenet.caffemodel
Traceback (most recent call last):
  File "chainer-gogh.py", line 196, in <module>
    img_content,nw,nh = image_resize(args.orig_img, W)
  File "chainer-gogh.py", line 50, in image_resize
    gogh = np.asarray(gogh.resize((new_w,new_h)))[:,:,:3].transpose(2, 0, 1)[::-1].astype(np.float32)
  File "python-3.4.4.amd64\lib\site-packages\PIL\Image.py", line 1554, in resize
    return self.convert('RGBa').resize(size, resample).convert('RGBA')
  File "python-3.4.4.amd64\lib\site-packages\PIL\Image.py", line 1556, in resize
    return self._new(self.im.resize(size, resample))
TypeError: integer argument expected, got float