Check Image if valid

This is the python script i came up with to check if an image is valid/corrupt. It is quite useful if you want to check large number of downloaded images to be valid images or corrupt images. I just open an image using PIL python module. If its a valid image, it gets opened normally otherwise an exception is raised.

It gets the job done.

import glob
from PIL import Image
for filename in glob.glob("*.jpg"):
  
    try:
        im=Image.open(filename,'r')
        pass
    except:
        print "error in"+filename
        a=open('error_report1','a');
        a.write(filename)
        a.write("\n");