How to import a Python pure class declared in a third-party module in Odoo?

Question

I have installed the module mis_builder, from the Odoo Community Association repository named mis-builder.

In that module, there is a pure Python class defined, out of Odoo standards:

class AccountingExpressionProcessor(object):

    ...

    def get_aml_domain_for_expr(self, expr, date_from, date_to, target_move, account_id=None):
        ...

The problem is that I need to create a customized module to overwrite the method get_aml_domain_for_expr, defined inside the class AccountingExpressionProcessor.

So in my module, I want to import the AccountingExpressionProcessor class. My question is:

Which is the best way to import that class in my Python file?

I did this:

import imp

aep = imp.load_source(
    'mis_builder.AccountingExpressionProcessor',
    '/my/absolute/path/to/mis-builder/mis_builder/models/aep.py'
)

And then tried to inherit from the imported class this way:

class AccountingExpressionProcessor(aep.AccountingExpressionProcessor):

This solution is not working. In addition to this, I do not want to specify the absolute path, since each Odoo instance has its own path.

I tried a lot of things with no result. I am using Python 2.7 since it is Odoo 10. Does anyone know a good solution for this?

Answer 1

I'm not sure if it'll works for you or not but I've an example where ODOO implemented the same.

from odoo.addons.account_taxcloud.models.taxcloud_request import TaxCloudRequest

here code inherits the account_taxcloud(module) + taxcloud_request(py file) and then use the method:

class TaxCloudRequest(TaxCloudRequest):

    def set_order_items_detail(self, order):

Kindly check if it works for you. Also please update if you find any solution.