code: def spendables_for_address(self, address):
          
          spendables = []
          r = json.loads(urlopen(self.base_url('get_tx_unspent', address)).read().decode("utf8"))
  
          for u in r['data']['txs']:
              coin_value = int(float(u['value']) * 100000000)
              script = h2b(u["script_hex"])
              previous_hash = h2b_rev(u["txid"])
              previous_index = u["output_no"]
              spendables.append(Tx.Spendable(coin_value, script, previous_hash, previous_index))
  
          return spendables
docs: Return a list of Spendable objects for the
          given bitcoin address.