utils.py 文件源码

def iter_used_addresses(adapter, seed, start):
  # type: (BaseAdapter, Seed, int) -> Generator[Tuple[Address, List[TransactionHash]]]
  """
  Scans the Tangle for used addresses.

  This is basically the opposite of invoking ``getNewAddresses`` with
  ``stop=None``.
  """
  ft_command = FindTransactionsCommand(adapter)

  for addy in AddressGenerator(seed).create_iterator(start):
    ft_response = ft_command(addresses=[addy])

    if ft_response['hashes']:
      yield addy, ft_response['hashes']
    else:
      break

    # Reset the command so that we can call it again.
    ft_command.reset()