getOrientationFromEXIF.py

from PIL import Image, ExifTags
import sys

'''
1        2       3      4         5            6           7          8

888888  888888      88  88      8888888888  88                  88  8888888888
88          88      88  88      88  88      88  88          88  88      88  88
8888      8888    8888  8888    88          8888888888  8888888888          88
88          88      88  88
88          88  888888  888888
'''

def getOrientation(tag):
    switcher = {
        3: 180,
        6: 270,
        8: 90
    }
    return switcher.get(tag, "Undefined")

if __name__ == "__main__":
    try:
        image=Image.open(sys.argv[1])
    except:
        print "Cannot load image"
        exit()

    for tag in ExifTags.TAGS.keys():
        if ExifTags.TAGS[tag]=='Orientation':
            break
    exif=dict(image._getexif().items())

    print getOrientation(exif[tag])