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TypeError: float() argument must be a string or a number

on 10/11/14, 12:56 AM 4,470 views

I want to add a computation in purchase.order.line using the existing onchange_product_id but I'm getting with an error of this:  TypeError: float() argument must be a string or a number I need help please i dont know what to do with this. here's my code:


 def onchange_product_id(self, cr, uid, ids, pricelist_id, product_id, qty, uom_id,
            partner_id, date_order=False, fiscal_position_id=False, date_planned=False,
            name=False, price_unit=False, rss_l = 0.0, rss_w = 0.0, b = 0.0, context=None):
        onchange handler of product_id.
        if context is None:
            context = {}
        res = {'value': {'price_unit': price_unit or 0.0, 'name': name or '', 'product_uom' : uom_id or False}}
        if not product_id:
            return res
        product_product = self.pool.get('product.product')
        product_uom = self.pool.get('product.uom')
        res_partner = self.pool.get('res.partner')
        product_supplierinfo = self.pool.get('product.supplierinfo')
        product_pricelist = self.pool.get('product.pricelist')
        account_fiscal_position = self.pool.get('account.fiscal.position')
        account_tax = self.pool.get('account.tax')
        # - check for the presence of partner_id and pricelist_id
        #if not partner_id:
        #    raise osv.except_osv(_('No Partner!'), _('Select a partner in purchase order to choose a product.'))
        #if not pricelist_id:
        #    raise osv.except_osv(_('No Pricelist !'), _('Select a price list in the purchase order form before choosing a product.'))
        # - determine name and notes based on product in partner lang.
        context_partner = context.copy()
        if partner_id:
            lang = res_partner.browse(cr, uid, partner_id).lang
            context_partner.update( {'lang': lang, 'partner_id': partner_id} )
        product = product_product.browse(cr, uid, product_id, context=context_partner)
        name = product.name
        if product.description_purchase:
            name += '\n' + product.description_purchase
        res['value'].update({'name': name})
        # - set a domain on product_uom
        res['domain'] = {'product_uom': [('category_id','=',product.uom_id.category_id.id)]}
        # - check that uom and product uom belong to the same category
        product_uom_po_id = product.uom_po_id.id
        if not uom_id:
            uom_id = product_uom_po_id
        if product.uom_id.category_id.id != product_uom.browse(cr, uid, uom_id, context=context).category_id.id:
            if self._check_product_uom_group(cr, uid, context=context):
                res['warning'] = {'title': _('Warning!'), 'message': _('Selected Unit of Measure does not belong to the same category as the product Unit of Measure.')}
            uom_id = product_uom_po_id
        res['value'].update({'product_uom': uom_id})
        # - determine product_qty and date_planned based on seller info
        if not date_order:
            date_order = fields.date.context_today(self,cr,uid,context=context)
        supplierinfo = False
        for supplier in product.seller_ids:
            if partner_id and (supplier.name.id == partner_id):
                supplierinfo = supplier
                if supplierinfo.product_uom.id != uom_id:
                    res['warning'] = {'title': _('Warning!'), 'message': _('The selected supplier only sells this product by %s') % supplierinfo.product_uom.name }
                min_qty = product_uom._compute_qty(cr, uid, supplierinfo.product_uom.id, supplierinfo.min_qty, to_uom_id=uom_id)
                if (qty or 0.0) < min_qty: # If the supplier quantity is greater than entered from user, set minimal.
                    if qty:
                        res['warning'] = {'title': _('Warning!'), 'message': _('The selected supplier has a minimal quantity set to %s %s, you should not purchase less.') % (supplierinfo.min_qty, supplierinfo.product_uom.name)}
                    qty = min_qty
        dt = self._get_date_planned(cr, uid, supplierinfo, date_order, context=context).strftime(DEFAULT_SERVER_DATETIME_FORMAT)
        qty = qty or 1.0
        res['value'].update({'date_planned': date_planned or dt})
        if qty:
            res['value'].update({'product_qty': qty})
        # - determine price_unit and taxes_id
        if pricelist_id:
            price = product_pricelist.price_get(cr, uid, [pricelist_id],
                    product.id, qty or 1.0, partner_id or False, {'uom': uom_id, 'date': date_order})[pricelist_id]
            price = product.standard_price
        taxes = account_tax.browse(cr, uid, map(lambda x: x.id, product.supplier_taxes_id))
        fpos = fiscal_position_id and account_fiscal_position.browse(cr, uid, fiscal_position_id, context=context) or False
        taxes_ids = account_fiscal_position.map_tax(cr, uid, fpos, taxes)
        res['value'].update({'price_unit': price, 'taxes_id': taxes_ids})
        l = 0.0
        w = 0.0
        if float(rss_l) >= 1:
             l = float(rss_l) / 25.40
        if rss_w :
             w = rss_w / 25.40
        a = 0.00
        m = 0.00   
        if w > 0 and l > 0 and b > 0:
            n = (round(w, 2) * round(l,2) * round(b,2))
            a = 1000000.00 / (n/ 1550.00 )
            m = a / qty
        res['value'].update({'rss_li': l,
                             'rss_wi': w,
        return res

Will you post traceback as well? Also highlight your custom code so that we can easily trace the issue.

Sudhir Arya (SA)
on 10/11/14, 5:12 AM


Please make sure that the parameters between calling of the on change (might be in xml)  and python function. Those all (xml) parameters are mapped with right parameters into python code.

I have also seen another question which is also regarding this issue. https://www.odoo.com/forum/help-1/question/typeerror-unsupported-operand-type-s-for-dict-and-float-65075

So, based on this I can assume that In the argument "rss_l" or "rss_w" is contain the dictonary instead of any numeric value.

So, please confirm those argument first. 

I hope this will help you and resolve your issue.

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Asked: 10/11/14, 12:56 AM
Seen: 4470 times
Last updated: 3/27/15, 3:57 AM