[IMP]when create new delivery order and on click of save it gives traceback

bzr revid: sgo@tinyerp.com-20121022094142-kbr4rtic238to00w

addons/stock/stock.py

@@ -629,7 +629,7 @@ class stock_picking(osv.osv):
         'name': fields.char('Reference', size=64, select=True, states={'done':[('readonly', True)], 'cancel':[('readonly',True)]}),
         'origin': fields.char('Source', size=64, states={'done':[('readonly', True)], 'cancel':[('readonly',True)]}, help="Reference of the document", select=True),
         'backorder_id': fields.many2one('stock.picking', 'Back Order of', states={'done':[('readonly', True)], 'cancel':[('readonly',True)]}, help="If this shipment was split, then this field links to the shipment which contains the already processed part.", select=True),
-        'type': fields.selection([('out', 'Sending Goods'), ('in', 'Getting Goods'), ('internal', 'Internal')], 'Shipping Type', required=True, select=True, readonly=True, help="Shipping type specify, goods coming in or going out."),
+        'type': fields.selection([('out', 'Sending Goods'), ('in', 'Getting Goods'), ('internal', 'Internal')], 'Shipping Type', required=True, select=True, help="Shipping type specify, goods coming in or going out."),
         'note': fields.text('Notes', states={'done':[('readonly', True)], 'cancel':[('readonly',True)]}),
         'stock_journal_id': fields.many2one('stock.journal','Stock Journal', select=True, states={'done':[('readonly', True)], 'cancel':[('readonly',True)]}),
         'location_id': fields.many2one('stock.location', 'Location', states={'done':[('readonly', True)], 'cancel':[('readonly',True)]}, help="Keep empty if you produce at the location where the finished products are needed." \

addons/stock/stock_view.xml

@@ -784,7 +784,7 @@
                             <group>
                                 <group>
                                     <field name="move_type"/>
-                                    <field name="type" groups="base.group_no_one"/>
+                                    <field name="type" invisible="1"/>
                                     <field name="auto_picking" groups="base.group_user"/>
                                 </group>
                                 <group>