Getting price from Amazon with Xpath
问题 in the following page: http://www.amazon.com/Jessica-Simpson-Womens-Double-Breasted/dp/B00K65ZMCA/ref=sr_1_4_mc/185-0705108-6790969?s=apparel&ie=UTF8&qid=1413083859&sr=1-4 I am trying to get the price with the expression '//span[@id="priceblock_ourprice"]' but the result is an empty variable. the interesting part is that In other amazon pages, like this one : http://www.amazon.com/SanDisk-Cruzer-Frustration-Free-Packaging--SDCZ36-032G-AFFP/dp/B007JR532M/ref=sr_1_1?s=pc&ie=UTF8&qid=1413084653