How to use the base58.hash_160 function in base58

prv_key = key.to_extended_key(include_prv=True)
  pub_key = key.to_extended_key()

  desc ='  * [Chain m'
  for c in chain:
    if c&0x80000000:
      desc = desc + '/%d\'' % (c & ~0x80000000)
    else:
      desc = desc + '/%d' % c
  desc = desc + ']'

  print desc

  print '    * Identifier'
  print '      * (hex):       %s' % base58.hash_160(point_compress(key.point())).encode('hex')
  print '      * (fpr):       0x%s' % key.fingerprint().encode('hex')
  print '      * (main addr): %s' % key.address()
  print '    * Secret key'
  print '      * (hex):       %s' % key.prvkey().encode('hex')
  print '      * (wif):       %s' % SecretToASecret(key.prvkey(), True)
  print '    * Public key'
  print '      * (hex):       %s' % point_compress(key.point()).encode('hex')
  print '    * Chain code'
  print '      * (hex):       %s' % key.chain().encode('hex')
  print '    * Serialized'
  print '      * (pub hex):   %s' % base58.b58decode(pub_key, None).encode('hex')
  print '      * (prv hex):   %s' % base58.b58decode(prv_key, None).encode('hex')
  print '      * (pub b58):   %s' % pub_key
  print '      * (prv b58):   %s' % prv_key

def fingerprint(self):
		return base58.hash_160(point_compress(self.point()))[:4]