TypeError: 'int' object has no attribute '__getitem__'

[lol768]

➜  gradify git:(master) ✗ python gradify.py -f bg.jpg      
Traceback (most recent call last):
  File "gradify.py", line 315, in <module>
    foo = Gradify()
  File "gradify.py", line 57, in __init__
    self.get_file(self.args.file)
  File "gradify.py", line 197, in get_file
    self.get_directions(filen)
  File "gradify.py", line 88, in get_directions
    col = self.get_colors()
  File "gradify.py", line 262, in get_colors
    return self.findBestColors()
  File "gradify.py", line 293, in findBestColors
    diff = self.get_RGB_diff(col_dict["col"], self.colors[i][1])
  File "gradify.py", line 266, in get_RGB_diff
    return abs(1.4*abs(old[0]-new[0])**(1/2.0) + .8*abs(old[1]-new[1])**(1/2.0) + .8*abs(old[2]-new[2])**(1/2.0))**(1/2.0)
TypeError: 'int' object has no attribute '__getitem__'
➜  gradify git:(master) ✗ md5sum bg.jpg 
d91c1f965139603990d138e39ba7b358  bg.jpg

➜  gradify git:(master) ✗ python -V
Python 2.7.6
➜  ~  lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 14.04.1 LTS
Release:    14.04
Codename:   trusty
➜  ~  uname -a      
Linux gntpc 3.13.0-45-generic #74-Ubuntu SMP Tue Jan 13 19:36:28 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

Image: https://imgrush.com/2RwfllE5YDmQ.jpg

[fraser-hemp]

As far as I can tell, because the image only contains greys (x,x,x) PIL compresses the tuples to ints for some reason? I'll check if there's a more elegant way of preventing this rather than a hacky if to check the length of the tuple/int and extend it

[lol768]

Ah, that makes sense. To workaround this, I opened the image in GIMP and set the colour mode to RGB (was originally greyscale) then re-exported it.

[fraser-hemp]

yeah that'll work for now. i'll leave this open and fix it after my exams!