Check Andor iQ image orientation on images between set date range

gistfile1.py

import imagedisk
from datetime import datetime

id = imagedisk.iQImageDisk()

##print type(id[1091567616].getDateAndTimeObject())

date_min = datetime(2011, 3, 7)
date_max = datetime(2011, 3, 10)
no_flip_rotation = 0
flip_rotation = 0

for im in id:
    
  try:
    date_time = im.getDateAndTimeObject()
    
    if date_time >= date_min and date_time <= date_max:
      ##print date_time
      try:
        orientation_metadata = im.getDetails()[0]['Tab Image Orientation']
      except KeyError:
        # No orientation field, so invalid image
        continue
      
      if orientation_metadata == 'Flip=None\r\nRotation in Degrees=None\r\n':
        no_flip_rotation = no_flip_rotation + 1
      else:
        flip_rotation = flip_rotation + 1
        print "Found", im.getTitle, "has", repr(orientation_metadata)
    
  except ValueError:
    # No date/time for e.g. processed image
    pass

print "No flip or rotation:", no_flip_rotation
print "Flipped or rotated:", flip_rotation