PIL (Image) ValueError: Not a valid number of quan

Question

I want to draw a rectangle on a picture and save it as a new file. what I'm doing is below:

from PIL import Image
from PIL import ImageChops
from PIL import ImageDraw

im = Image.open('the animal picture.jpg')
draw = ImageDraw.Draw(im)
draw.rectangle((69, 17, 418, 107))
im = im.convert('RGB')
im.save('new.jpg')

It gives an error message:

Traceback (most recent call last):
  File "C:\Python27\draw_re.py", line 9, in <module>
    im.save('new.jpg')
  File "C:\Python27\lib\PIL\Image.py", line 1439, in save
    save_handler(self, fp, filename)
  File "C:\Python27\lib\PIL\JpegImagePlugin.py", line 471, in _save
    ImageFile._save(im, fp, [("jpeg", (0,0)+im.size, 0, rawmode)])
  File "C:\Python27\lib\PIL\ImageFile.py", line 494, in _save
    for e, b, o, a in tile:
ValueError: Not a valid number of quantization tables. Should be between 1 and 4.

It looks like the problem in PIL - Not a valid numbers of quantization tables. Should be between 2 and 4, but the tip doesn't solve the problem. It makes batch processing impossible.

Answer 1

I worked it out. The problem caused by the Image and PIL libraries I am using.

I uninstalled and removed all previous installed PIL and Image libraries (there were confusion before and difficulties in original installations) so I have cross files and folders for the libraries.

I did the uninstallations through pip, and "Control Panel\All Control Panel Items\Programs and Features" in Windows as well. Also have manually removed the residues folders and files.

Pillow is the one shall be used. I downloaded a MS Windows installer from https://pypi.python.org/pypi/Pillow/2.6.1 and installed it. Run the script and it's working fine.