diff --git a/address.py b/address.py
index fef948c059..9c01d0c1dc 100644
--- a/address.py
+++ b/address.py
@@ -114,12 +114,14 @@ class Address(ModelSQL, ModelView):
         return [('party',) + tuple(clause[1:])]
 
     @classmethod
-    def write(cls, addresses, vals):
-        if 'party' in vals:
-            for address in addresses:
-                if address.party.id != vals['party']:
-                    cls.raise_user_error('write_party', (address.rec_name,))
-        super(Address, cls).write(addresses, vals)
+    def write(cls, *args):
+        actions = iter(args)
+        for addresses, values in zip(actions, actions):
+            if 'party' in values:
+                for address in addresses:
+                    if address.party.id != values['party']:
+                        cls.raise_user_error('write_party', (address.rec_name,))
+        super(Address, cls).write(*args)
 
     def on_change_country(self):
         if (self.subdivision
diff --git a/contact_mechanism.py b/contact_mechanism.py
index 9c979abd9e..3de1e9953a 100644
--- a/contact_mechanism.py
+++ b/contact_mechanism.py
@@ -171,9 +171,11 @@ class ContactMechanism(ModelSQL, ModelView):
         return self._change_value(self.other_value)
 
     @classmethod
-    def write(cls, mechanisms, vals):
-        if 'party' in vals:
-            for mechanism in mechanisms:
-                if mechanism.party.id != vals['party']:
-                    cls.raise_user_error('write_party', (mechanism.rec_name,))
-        super(ContactMechanism, cls).write(mechanisms, vals)
+    def write(cls, *args):
+        actions = iter(args)
+        for mechanisms, values in zip(actions, actions):
+            if 'party' in values:
+                for mechanism in mechanisms:
+                    if mechanism.party.id != values['party']:
+                        cls.raise_user_error('write_party', (mechanism.rec_name,))
+        super(ContactMechanism, cls).write(*args)
diff --git a/party.py b/party.py
index e0c5554a28..207604ca66 100644
--- a/party.py
+++ b/party.py
@@ -166,11 +166,15 @@ class Party(ModelSQL, ModelView):
         return super(Party, cls).create(vlist)
 
     @classmethod
-    def write(cls, parties, vals):
-        if vals.get('code'):
-            vals = vals.copy()
-            vals['code_length'] = len(vals['code'])
-        super(Party, cls).write(parties, vals)
+    def write(cls, *args):
+        actions = iter(args)
+        args = []
+        for parties, values in zip(actions, actions):
+            if values.get('code'):
+                values = values.copy()
+                values['code_length'] = len(values['code'])
+            args.extend((parties, values))
+        super(Party, cls).write(*args)
 
     @classmethod
     def copy(cls, parties, default=None):