TypeError: can only concatenate list (not "tuple") to list

Support User
1

And another thing occurred - after “quote” now I have to “process” a sale. When doing so, this error happens:

Traceback (most recent call last):
  File "/trytond/wsgi.py", line 109, in dispatch_request
    return endpoint(request, **request.view_args)
  File "/trytond/protocols/dispatcher.py", line 43, in rpc
    return methods.get(request.rpc_method, _dispatch)(
  File "/trytond/wsgi.py", line 75, in wrapper
    return func(request, *args, **kwargs)
  File "/trytond/protocols/wrappers.py", line 197, in wrapper
    return func(request, pool, *args, **kwargs)
  File "/trytond/protocols/dispatcher.py", line 204, in _dispatch
    result = rpc.result(meth(*c_args, **c_kwargs))
  File "/trytond/model/modelview.py", line 720, in wrapper
    return func(cls, records, *args, **kwargs)
  File "/trytond/modules/sale_shipment_cost/sale.py", line 243, in process
    super().process(sales)
  File "/trytond/model/modelview.py", line 720, in wrapper
    return func(cls, records, *args, **kwargs)
  File "/trytond/modules/sale/sale.py", line 1039, in process
    cls._process_shipment(sales)
  File "/trytond/modules/sale_supply/sale.py", line 48, in _process_shipment
    super()._process_shipment(sales)
  File "/trytond/modules/sale_shipment_grouping/sale.py", line 72, in _process_shipment
    super()._process_shipment([sale])
  File "/trytond/modules/sale/sale.py", line 1067, in _process_shipment
    shipments = sale.create_shipment('out')
  File "/trytond/modules/sale/sale.py", line 948, in create_shipment
    shipment = self._get_shipment_sale(Shipment, key)
  File "/trytond/modules/sale_shipment_cost/sale.py", line 334, in _get_shipment_sale
    shipment = super()._get_shipment_sale(Shipment, key)
  File "/trytond/modules/sale_shipment_grouping/sale.py", line 59, in _get_shipment_sale
    domain = self._get_grouped_shipment_domain(shipment)
  File "/trytond/modules/sale_shipment_grouping/sale.py", line 44, in _get_grouped_shipment_domain
    fields = self._get_shipment_grouping_fields(shipment)
  File "/trytond/modules/sale_shipment_cost/sale.py", line 320, in _get_shipment_grouping_fields
    return super()._get_shipment_grouping_fields(shipment) + (
TypeError: can only concatenate list (not "tuple") to list

Fault: can only concatenate list (not "tuple") to list

This may be related to the fact, that I could no longer launch my Tryton after upgrade to trytond 6.8.6. A downgrade to 6.8.5 fixed this problem, but may have caused other harm. Should I go back to last week’s database backup, or is there an easy fix?

2

Seems a bug in one of the modules, probably the sale_shipment_grouping. And I think https://discuss.tryton.org/t/the-value-order-for-field-shipment-cost-method-is-not-valid is also related.

No idea, this is still on 6.8 and 6.8.5 works, but 6.8.6 not? You have to downgrade also the different modules. I would start with downgrading the sale_shipment_cost to 6.8.1 because the sale_shipment_grouping hasn’t been upgraded. If it still doesn’t work, check for the version on http://downloads.tryton.org/6.8/ and downgrade based on the date a new version was released.

Please let us know which module made it working again, so we can check what has changed in that module.

3
4

Luckily, my update script by accident is smart enough to take records of all changes. So I found, on Nov 6th it upgraded these modules:

trytond==6.8.5
trytond-account==6.8.3
trytond-account-invoice==6.8.2
trytond-account-invoice-line-standalone==6.8.0
trytond-account-payment==6.8.0
trytond-account-statement==6.8.0
trytond-commission==6.8.1
trytond-purchase==6.8.4
trytond-purchase-request==6.8.0
trytond-sale==6.8.3
trytond-sale-shipment-cost==6.8.1
trytond-stock-shipment-cost==6.8.0

Downgrading all these seems to have solved the problem; certainly not all of these were faulty. Thanks for your support !

Cheers,
Wolf

5

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