Hi
I'm testing odoo external APi and I'm getting this error when i execute this last command:
models.execute_kw(db, uid, password, 'sale.order', 'search', [[]])
[4, 3, 1]

models.execute_kw(db, uid, password, 'sale.order', 'read', [1])

Traceback (most recent call last):
File "", line 1, in
File "C:\Users\xenic82661\AppData\Local\Programs\Python\Python39\lib\xmlrpc\client.py", line 1116, in __call__
return self.__send(self.__name, args)
File "C:\Users\xenic82661\AppData\Local\Programs\Python\Python39\lib\xmlrpc\client.py", line 1458, in __request
response = self.__transport.request(
File "C:\Users\xenic82661\AppData\Local\Programs\Python\Python39\lib\xmlrpc\client.py", line 1160, in request
return self.single_request(host, handler, request_body, verbose)
File "C:\Users\xenic82661\AppData\Local\Programs\Python\Python39\lib\xmlrpc\client.py", line 1176, in single_request
return self.parse_response(resp)
File "C:\Users\xenic82661\AppData\Local\Programs\Python\Python39\lib\xmlrpc\client.py", line 1348, in parse_response
return u.close()
File "C:\Users\xenic82661\AppData\Local\Programs\Python\Python39\lib\xmlrpc\client.py", line 662, in close
raise Fault(**self._stack[0])
xmlrpc.client.Fault: \n\nDuring handling of the above exception, another exception occurred:\n\nTraceback (most recent call last):\n File "/home/odoo/src/odoo/saas-16.1/odoo/addons/base/controllers/rpc.py", line 148, in xmlrpc_2\n response = self._xmlrpc(service)\n File "/home/odoo/src/custom/trial/saas_trial/controllers/main.py", line 266, in _xmlrpc\n res = super(OdooRPC, self)._xmlrpc(service)\n File "/home/odoo/src/odoo/saas-16.1/odoo/addons/base/controllers/rpc.py", line 129, in _xmlrpc\n return xmlrpc.client.dumps((result,), methodresponse=1, allow_none=False)\n File "/usr/lib/python3.10/xmlrpc/client.py", line 981, in dumps\n data = m.dumps(params)\n File "/usr/lib/python3.10/xmlrpc/client.py", line 514, in dumps\n dump(v, write)\n File "/usr/lib/python3.10/xmlrpc/client.py", line 536, in __dump\n f(self, value, write)\n File "/usr/lib/python3.10/xmlrpc/client.py", line 589, in dump_array\n dump(v, write)\n File "/usr/lib/python3.10/xmlrpc/client.py", line 536, in __dump\n f(self, value, write)\n File "/usr/lib/python3.10/xmlrpc/client.py", line 607, in dump_struct\n dump(v, write)\n File "/usr/lib/python3.10/xmlrpc/client.py", line 536, in __dump\n f(self, value, write)\n File "/usr/lib/python3.10/xmlrpc/client.py", line 607, in dump_struct\n dump(v, write)\n File "/usr/lib/python3.10/xmlrpc/client.py", line 526, in __dump\n raise TypeError("cannot marshal %s objects" % type(value))\nTypeError: cannot marshal objects\n'>

 
BTW for res.partner is working without any problem
models.execute_kw(db, uid, password, 'res.partner', 'search', [[]])
[9, 10, 8, 7, 1, 3]

models.execute_kw(db, uid, password, 'res.partner', 'read', [9])

[{'id': 9, 'message_is_follower': True, 'message_follower_ids': [...], 'message_partner_ids': [...], 'message_ids': [...], 'has_message': True, 'message_needaction': False, 'message_needaction_counter': 0, 'message_has_error': False, ...}]