Image pathname error

[sacha-l]

I can't seem to figure out why I keep getting this error:
is not a valid pathname to an image.

Any idea why this is happening? I've tried variations of file path names, with " " and without.. I'm on a Linux machine.

[DoubleFL3X]

• In the first line change
  import PIL to from PIL import Image
• and in line 29 remove this PIL.

[bljptrpl]

Following @DoubleFL3X
and you input the following

./pic.jpg
or
/home/derp/Desktop/github/py-scripts/ascii/pic.jpg