I'm trying to save with the following call and it raises an error, but if I remove progressive and optimize options, it saves.
import Image
img = Image.open("in.jpg")
img.save("out.jpg", "JPEG", quality=80, optimize=True, progressive=True)
Suspension not allowed here
Traceback (most recent call last):
File "test.py", line 3, in <module>
img.save("out.jpg", "JPEG", quality=80, optimize=True, progressive=True)
File "/Library/Python/2.6/site-packages/PIL/Image.py", line 1439, in save
save_handler(self, fp, filename)
File "/Library/Python/2.6/site-packages/PIL/JpegImagePlugin.py", line 471, in _save
ImageFile._save(im, fp, [("jpeg", (0,0)+im.size, 0, rawmode)])
File "/Library/Python/2.6/site-packages/PIL/ImageFile.py", line 501, in _save
raise IOError("encoder error %d when writing image file" % s)
IOError: encoder error -2 when writing image file