The html code is looking like this:
<img alt="Papa's Cupcakeria To Go!" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-old-hires="" class="a-dynamic-image a-stretch-vertical" id="landingImage" data-a-dynamic-image="{"https://images-na.ssl-images-amazon.com/images/I/814vdYZK17L.png":[512,512],"https://images-na.ssl-images-amazon.com/images/I/814vdYZK17L._SX425_.png":[425,425],"https://images-na.ssl-images-amazon.com/images/I/814vdYZK17L._SX466_.png":[466,466],"https://images-na.ssl-images-amazon.com/images/I/814vdYZK17L._SY450_.png":[450,450],"https://images-na.ssl-images-amazon.com/images/I/814vdYZK17L._SY355_.png":[355,355]}" style="max-width:512px;max-height:512px;">
I want to get "https://images-na.ssl-images-amazon.com/images/I/814vdYZK17L.png" and now I'm using
extract_item(hxs.xpath("//img[@id='landingImage']/@data-a-dynamic-image"))
, what I got is all the content inside that tag. How can I get the first url only?