Make list of destinations a tuple, like argument to transfer_multiple();

Initialize destinations as empty list, make iterations straightforward

monero/backends/jsonrpc.py

@@ -247,7 +247,7 @@ class JSONRPCWallet(object):
         }
         if 'destinations' in data:
             result['destinations'] = [
-                {'address': address(x['address']), 'amount': from_atomic(data['amount'])}
+                (address(x['address']), from_atomic(data['amount']))
                 for x in data.get('destinations')
             ]
         return result

monero/transaction.py

@@ -50,7 +50,7 @@ class OutgoingPayment(Payment):
     destinations = None
 
     def __init__(self, **kwargs):
-        self.destinations = kwargs.pop('destinations', self.destinations)
+        self.destinations = kwargs.pop('destinations', [])
         super(OutgoingPayment, self).__init__(**kwargs)
 
     _reprstr = "out: {} @ {} {:.12f} id={}"

utils/walletdump.py

@@ -33,14 +33,20 @@ _TXHDR = "timestamp         height  id/hash
         "         amount         fee           {dir:95s} payment_id"
 
 def pmt2str(pmt):
-    return "{time} {height:7d} {hash} {amount:17.12f} {fee:13.12f} {addr} {payment_id}".format(
+    res = ["{time} {height:7d} {hash} {amount:17.12f} {fee:13.12f} {addr} {payment_id}".format(
         time=pmt.timestamp.strftime("%d-%m-%y %H:%M:%S") if getattr(pmt, 'timestamp', None) else None,
         height=pmt.transaction.height or 0,
         hash=pmt.transaction.hash,
         amount=pmt.amount,
         fee=pmt.transaction.fee or 0,
         payment_id=pmt.payment_id,
-        addr=getattr(pmt, 'local_address', None) or '')
+        addr=getattr(pmt, 'local_address', None) or '')]
+    try:
+        for dest in pmt.destinations:
+            res.append("    {amount:17.12f} to {address}".format(address=dest[0], amount=dest[1]))
+    except AttributeError:
+        pass
+    return "\n".join(res)
 
 def a2str(a):
     return "{addr} {label}".format(