# library test/debug function (dump given files) if __name__ == '__main__':     import sys     import getopt     # parse command line options/arguments     try:         opts, args = getopt.getopt(sys.argv[1:], "hqsdt:v", ["help", "quick", "strict", "debug", "stop-tag="])     except getopt.GetoptError:         usage(2)     if args == []:         usage(2)     detailed = True     stop_tag = 'UNDEF'     debug = False     strict = False     for o, a in opts:         if o in ("-h", "--help"):             usage(0)         if o in ("-q", "--quick"):             detailed = False         if o in ("-t", "--stop-tag"):             stop_tag = a         if o in ("-s", "--strict"):             strict = True         if o in ("-d", "--debug"):             debug = True     # output info for each file     for filename in args:         try:             file=open(filename, 'rb')         except:             print "'%s' is unreadablen"%filename             continue         print filename + ':'         # get the tags         data = process_file(file, stop_tag=stop_tag, details=detailed, strict=strict, debug=debug)         if not data:             print 'No EXIF information found'             continue         x=data.keys()         x.sort()         for i in x:             if i in ('JPEGThumbnail', 'TIFFThumbnail'):                 continue             try:                 print '   %s (%s): %s' %                       (i, FIELD_TYPES[data[i].field_type][2], data[i].printable)             except:                 print 'error', i, '"', data[i], '"'         if 'JPEGThumbnail' in data:             print 'File has JPEG thumbnail'         print