Help with Python expressions.

You have to insert valid Python code block that stores at some moment a float/integer value of the quantity to invoice in the variable 'result'.

You can use these variables to compute your formula:

env: Environment variable for getting other models.
context: Current context dictionary.
user: Current user.
line: Contract recurring invoice line that triggers this formula.
contract: Contract whose line belongs to.
invoice: Invoice (header) being created.

Example of Python code


                                    result =
                                    env['product.product'].search_count([('sale_ok',
                                    '=', True)])