define wallet.get_num_tx()

gui/gui_classic.py

@@ -1131,10 +1131,7 @@ class ElectrumWindow(QMainWindow):
 
         for address in self.wallet.addressbook:
             label = self.wallet.labels.get(address,'')
-            n = 0 
+            n = self.wallet.get_num_tx(address)
-            for tx in self.wallet.transactions.values():
-                if address in map(lambda x: x[0], tx.outputs): n += 1
-            
             item = QTreeWidgetItem( [ address, label, "%d"%n] )
             item.setFont(0, QFont(MONOSPACE_FONT))
             # 32 = label can be edited (bool)

gui/gui_gtk.py

@@ -1152,10 +1152,7 @@ class ElectrumWindow:
             
         for address in self.wallet.addressbook:
             label = self.wallet.labels.get(address)
-            n = 0 
+            n = self.wallet.get_num_tx(address)
-            for tx in self.wallet.transactions.values():
-                if address in map(lambda x:x[0], tx.outputs): n += 1
-
             self.addressbook_list.append((address, label, "%d"%n))
 
     def update_history_tab(self):

lib/wallet.py

@@ -407,6 +407,12 @@ class Wallet:
         # redo labels
         # self.update_tx_labels()
 
+    def get_num_tx(self, address):
+        n = 0 
+        for tx in self.transactions.values():
+            if address in map(lambda x:x[0], tx.outputs): n += 1
+        return n
+
 
     def get_address_flags(self, addr):
         flags = "C" if self.is_change(addr) else "I" if addr in self.imported_keys.keys() else "-"