Altering base field via XML file

Question

I am trying to edit the "default_code" field on the product.product model. I am attempting to make it so the field is no longer copied when duplicating a record. This is my XML record:

</record>

When I import the module, I can an error. If I comment out this record, the rest of my module imports without an issue, so I believe this is causing the problem. Is it not possible to alter a base field in this manner?

Axel Mendoza · Accepted Answer

@Michael Leff
That is not the way to do it since that info in ir.model.fields is not completelly merged into python class _fields attribute. You could do it like this
class product_product(model.Model):
_inherit = 'product.product'
*     default_code = fields.Char(copy=False)*

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