Web scraper

import requests
from lxml import html
headers = {'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.90 Safari/537.36'}
xpath_product = '//h1//span[@id="productTitle"]//text()'
xpath_brand = '//div[@id="mbc"]/@data-brand'

def getBrandName(url):
    page = requests.get(url,headers=headers)
    parsed = html.fromstring(page.content)
    return parsed.xpath(xpath_brand)

var page = require('webpage').create();
page.customHeaders = {'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.90 Safari/537.36'};
page.open('https://www.amazon.com/Folgers-Coffee-Flavorful-Aromatic-Canister/dp/B01JETQ3LC?th=1', function(status){s
    if (status !== 'success') {
        console.log('Unable to access network');
    } else {
        var ua = page.evaluate(function () {
            return document.getElementById('bylineInfo').textContent;
        });
        console.log(ua);
    }
    phantom.exit();
});