[qa] Switch to py3

qa/rpc-tests/wallet.py

@@ -1,5 +1,5 @@
-#!/usr/bin/env python2
-# Copyright (c) 2014-2015 The Bitcoin Core developers
+#!/usr/bin/env python3
+# Copyright (c) 2014-2016 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -38,7 +38,7 @@ class WalletTest (BitcoinTestFramework):
         assert_equal(len(self.nodes[1].listunspent()), 0)
         assert_equal(len(self.nodes[2].listunspent()), 0)
 
-        print "Mining blocks..."
+        print("Mining blocks...")
 
         self.nodes[0].generate(1)
 
@@ -321,7 +321,7 @@ class WalletTest (BitcoinTestFramework):
             '-salvagewallet',
         ]
         for m in maintenance:
-            print "check " + m
+            print("check " + m)
             stop_nodes(self.nodes)
             wait_bitcoinds()
             self.nodes = start_nodes(3, self.options.tmpdir, [[m]] * 3)