keys() doesnt return list() in python3

gajim/common/zeroconf/zeroconf_avahi.py

@@ -89,7 +89,7 @@ def remove_service_callback(self, interface, protocol, name, stype, domain,
         if not self.connected:
             return
         if name != self.name:
-            for key in self.contacts.keys():  # pylint: disable=C0201
+            for key in list(self.contacts.keys()):
                 val = self.contacts[key]
                 if val[Constant.BARE_NAME] == name:
                     # try to reduce instead of delete first

gajim/common/zeroconf/zeroconf_bonjour.py

@@ -98,7 +98,7 @@ def remove_service_callback(self, name):
         if not self.connected:
             return
         if name != self.name:
-            for key in self.contacts.keys():  # pylint: disable=C0201
+            for key in list(self.contacts.keys()):
                 if self.contacts[key][Constant.NAME] == name:
                     del self.contacts[key]
                     self.remove_serviceCB(key)

gajim/message_window.py

@@ -1107,7 +1107,7 @@ def _on_window_delete(self, win, event):
         return False
 
     def _on_window_destroy(self, win):
-        for k in self._windows.keys():  # pylint: disable=C0201
+        for k in list(self._windows.keys()):
             if self._windows[k].window == win:
                 self.emit('window-delete', self._windows[k])
                 del self._windows[k]