I got the following error message

TypeError: write() takes exactly 2 arguments (5 given) 

due to the following code

    def post(self,cr,uid,ids,context=None):
        o = self.browse(cr,uid,ids[0])
        budget_obj = self.pool.get('budget.expense').browse(cr,uid,o.budget_id.id)
        budget_line = self.pool.get('budget.expense.lines')
        for line in o.budget_transaction_line:
            for item in budget_obj.budget_expense_line:
                if line.item_id.id == item.item_id.id:
                    if line.tran_type in ('salary','expense'):           
                        if item.planned_amount - item.practical_amount - line.amount>=0: 
                            b_line = budget_line.browse(cr,uid,item.id)
                            vals = { 'practical_amount':item.practical_amount + line.amount,  }
                            b_line.write(cr,uid,[item.id],vals)

Don't care about all the method's lines, the problem is in the last bold line

Does anyone have an idea to resolve this error ?