Postlogistics Warnings are wrongly unwrapped

[Yannick Vaucher @ Camptocamp]

Server Traceback (most recent call last):
File
".../webclient/addons/web/session.py",
line 89, in send
return openerp.netsvc.dispatch_rpc(service_name, method, args)
File
".../server/openerp/netsvc.py",
line 296, in dispatch_rpc
result = ExportService.getService(service_name).dispatch(method, params)
File
".../server/openerp/service/web_services.py",
line 626, in dispatch
res = fn(db, uid, *params)
File
".../server/openerp/osv/osv.py",
line 190, in execute_kw
return self.execute(db, uid, obj, method, *args, **kw or {})
File
".../server/openerp/osv/osv.py",
line 132, in wrapper
return f(self, dbname, *args, **kwargs)
File
".../server/openerp/osv/osv.py",
line 199, in execute
res = self.execute_cr(cr, uid, obj, method, *args, **kw)
File
".../server/openerp/osv/osv.py",
line 187, in execute_cr
return getattr(object, method)(cr, uid, *args, **kw)
File
".../carriers-deliveries/delivery_carrier_label_dispatch/wizard/generate_labels.py",
line 115, in action_generate_labels
'datas': assemble_pdf(labels).encode('base64'),
File
".../carriers-deliveries/delivery_carrier_label_dispatch/pdf_utils.py",
line 41, in assemble_pdf
for pdf in pdf_list:
File
".../carriers-deliveries/delivery_carrier_label_dispatch/wizard/generate_labels.py",
line 110, in <genexpr>
labels = (label.decode('base64') for label in labels if labels)
File
".../carriers-deliveries/delivery_carrier_label_dispatch/wizard/generate_labels.py",
line 109, in <genexpr>
labels = (label.datas for label in labels)
File
".../carriers-deliveries/delivery_carrier_label_dispatch/wizard/generate_labels.py",
line 86, in _get_all_pdf
context=context)
File
".../carriers-deliveries/base_delivery_carrier_label/stock.py",
line 351, in generate_labels
context=context)
File
".../carriers-deliveries/base_delivery_carrier_label/stock.py",
line 117, in generate_labels
shipping_labels =
pick.generate_shipping_labels(tracking_ids=tracking_ids)
File
".../server/openerp/osv/orm.py",
line 377, in function_proxy
return attr(self._cr, self._uid, [self._id], *args, **kwargs)
File
".../specific-addons/delivery_carrier_label_swiss_pp/stock.py",
line 70, in generate_shipping_labels
context=context)
File
".../carriers-deliveries/delivery_carrier_label_postlogistics/stock.py",
line 107, in generate_shipping_labels
context=context)
File
".../carriers-deliveries/delivery_carrier_label_postlogistics_shop_logo/stock.py",
line 40, in _generate_postlogistics_label
context=context)
File
".../carriers-deliveries/delivery_carrier_label_postlogistics/stock.py",
line 57, in _generate_postlogistics_label
user_lang=user.lang)
File
".../carriers-deliveries/delivery_carrier_label_postlogistics/postlogistics/web_service.py",
line 389, in generate_label
message = '[%s] %s' % (warning.Code, warning.Message)
AttributeError: 'tuple' object has no attribute 'Code'