! python3 でファイルをダンプ

 #!/bin/env python3
 
 import sys, string
 
 # DATALEN = 376
 DATALEN = 380
 # DATALEN = 384
 
 with open('UNKNWN.DAT', 'rb') as f:
    while True:
        for i in range(DATALEN): 
            d = f.read(1)
            n = ord(d)
            if len(d) == 0:
              break
            if ( i < 12 ):
                ## print('%s (%x) ' % (ord(d), ord(d)), end='')
                # if n in string.printable[:-5]: # without \t,\n,\x,0b, \x, 0c, \r
                # if d in string.printable[:-5]: # without \t,\n,\x,0b, \x, 0c, \r
                #
                # print('(%2x) ' %  ord(d), end='')
                if ( n >  0x7f ):
                        print ('. ' , end ='' )
                elif d.decode(encoding='utf-8') in string.printable[:-5]:
                        # without \t,\n,\x,0b, \x, 0c, \r
                        print ('%s ' % d.decode() , end ='' )
                        # print ('%s ' % d , end ='' )
                else:
                    print ('. ' , end ='' )
                #
                print('(%2x) ' %  ord(d), end='')
                # sys.stdout.write('.')
        print('====')