NeoVe NeoVe - 4 months ago 45
Python Question

TypeError: can only concatenate tuple (not “list”) to tuple" - Odoo v9

I have this model:

class paymentTerm(models.Model):
_inherit = 'account.payment.term'

dte_sii_code = fields.Selection((
('1', '1: Contado'),
('2', '2: Credito'),
('3', '3: Otro')), 'DTE Sii Code', )

I want to add some fields to this selection, from another module, like this:

class paymentTerm(models.Model):
_inherit = 'account.payment.term'

dte_sii_code = fields.Selection(selection_add=[('1', 'COB1'),('2','COBRANZA'),('11','ACRED'),('12','CBOF'),('21','S/PAGO'),('32','ANTICIPO')])

But when I try to apply this to my module, Odoo server throws me this:

2016-11-25 02:04:06,338 13570 ERROR odoo_solti_ultima openerp.modules.registry: Failed to load registry
Traceback (most recent call last):
File "/home/kristian/odoov9/odoo-9.0c-20161106/openerp/modules/", line 386, in new
openerp.modules.load_modules(registry._db, force_demo, status, update_module)
File "/home/kristian/odoov9/odoo-9.0c-20161106/openerp/modules/", line 340, in load_modules
File "/home/kristian/odoov9/odoo-9.0c-20161106/openerp/modules/", line 197, in setup_models
model._setup_base(cr, SUPERUSER_ID, partial)
File "/home/kristian/odoov9/odoo-9.0c-20161106/openerp/", line 250, in wrapper
return old_api(self, *args, **kwargs)
File "/home/kristian/odoov9/odoo-9.0c-20161106/openerp/", line 354, in old_api
result = method(recs, *args, **kwargs)
File "/home/kristian/odoov9/odoo-9.0c-20161106/openerp/", line 3019, in _setup_base
File "/home/kristian/odoov9/odoo-9.0c-20161106/openerp/", line 248, in wrapper
return new_api(self, *args, **kwargs)
File "/home/kristian/odoov9/odoo-9.0c-20161106/openerp/", line 471, in _add_field
field.setup_base(self, name)
File "/home/kristian/odoov9/odoo-9.0c-20161106/openerp/", line 406, in setup_base
self._setup_attrs(model, name)
File "/home/kristian/odoov9/odoo-9.0c-20161106/openerp/", line 1498, in _setup_attrs
self.selection = OrderedDict(self.selection + selection_add).items()
TypeError: can only concatenate tuple (not "list") to tuple

Any ideas about this?

I think it has to do with the original model, but I'm not so sure

I'm working on Odoo v9 community.


Selection datatype takes list of tuples. You have declared dte_sii_code with tuples. It should be list of tuples

Try with following code.

class paymentTerm(models.Model):
    _inherit = 'account.payment.term'

    dte_sii_code = fields.Selection([
        ('1', '1: Contado'),
        ('2', '2: Credito'),
        ('3', '3: Otro')], 'DTE Sii Code')

class paymentTerm(models.Model):
    _inherit = 'account.payment.term'

    dte_sii_code = fields.Selection(selection_add=[('4', 'COB1'),


We should care about key. If you add tuple with same key then it will override with new definition.