=== modified file 'account/account_bank.py'
--- account/account_bank.py	2011-11-07 12:43:37 +0000
+++ account/account_bank.py	2011-11-09 15:51:50 +0000
@@ -44,6 +44,10 @@
     def post_write(self, cr, uid, ids, context={}):
         obj_acc = self.pool.get('account.account')
         obj_data = self.pool.get('ir.model.data')
+
+        if isinstance(ids, (int, long)):
+          ids = [ids]
+
         for bank in self.browse(cr, uid, ids, context):
             if bank.company_id and not bank.journal_id:
                 # Find the code and parent of the bank account to create