def FindMissingImages(referenced_images, asset_images):
 images = set(asset_images)
 for ref in referenced_images:
  if (ref not in images):
   print ('%s does not exist' % ref)
  if (ImageName2X(ref) not in images):
   print ('%s does not exist' % ref_2x)

def FindMissingImages ( referenced_images , asset_images ) : images = set ( asset_images ) for ref in referenced_images : if ( ref not in images ) : print ( '%s does not exist' % ref ) if ( ImageName2X ( ref ) not in images ) : print ( '%s does not exist' % ref_2x )
check that every referenced image is found in asset_images .