ImageGrab not working,

Question

I believe I have installed the PIL for Image Library. I am trying to get a screenshot and save the .png image into the same folder as the script. Heres the Error Code I keep getting when I run it:
Traceback (most recent call last):
File "C:\Users\steph\Desktop\Screen\quickGrab.py", line 11, in <module>
screenGrab()
File "C:\Users\steph\Desktop\Screen\quickGrab.py", line 6, in screenGrab
im = ImageGrab.Grab()
AttributeError: module 'PIL.ImageGrab' has no attribute 'Grab'

Here's the code I'm using:
from PIL import ImageGrab
import os
import time

def screenGrab():
im = ImageGrab.Grab()
im.save(os.getcwd() + "\\full_snap_" + str( int(time.time())) + ".png", "PNG")

if __name__ == '__main__' :
screenGrab()

Answer 1

Use Matlab for img Processing.