您可以使用 set 检查是否存在重复。例如：

out,seen = [],set()
for d in master:
    if (d["Title"],d["Picture"]) not in seen:
        seen.add((d["Title"],d["Picture"]))
        out.append(d)

print(out)

打印：

[
    {
        "Title": 'Jordan MA2 "Future Beginnings"',"Price": 150,"Currency": "USD","Picture": "https://static.nike.com/a/images/t_default/a960ad50-4a05-4066-9916-e334e68f1dfd/jordan-ma2-future-beginnings-shoes-bK3TsG.png","Link": "nike.com/t/jordan-ma2-future-beginnings-shoes-bK3TsG/DA2552-100","Brand": "nike",},{
        "Title": "lace-up leather boots","Price": 1904,"Currency": " USD","Picture": "https://cdn-images.farfetch-contents.com/16/49/73/72/16497372_32445982_480.jpg","Link": "farfetch.com/shopping/men/rick-owens-lace-up-leather-boots-item-16497372.aspx?storeid=11893","Brand": "yeezy",{
        "Title": "Air Jordan XXXV Low","Price": 175,"Picture": "https://static.nike.com/a/images/t_default/a4778a7d-3678-4f7f-a289-773b1e9faf01/air-jordan-xxxv-low-basketball-shoes-6q5Z2t.png","Link": "nike.com/t/air-jordan-xxxv-low-basketball-shoes-6q5Z2t/DJ9805-190",{
        "Title": "The Lug slip-on boots","Price": 1250,"Picture": "https://cdn-images.farfetch-contents.com/17/08/52/70/17085270_34331632_480.jpg","Link": "farfetch.com/shopping/men/bottega-veneta-the-lug-slip-on-boots-item-17085270.aspx?storeid=9671",{
        "Title": "Jordan Series .01","Price": 80,"Picture": "https://static.nike.com/a/images/t_default/2527995d-01cd-43ea-b66d-0f1248035bb3/jordan-series-1-shoes-TxmFhR.png","Link": "nike.com/t/jordan-series-1-shoes-TxmFhR/CV8129-100",]

您非常接近正确的解决方案，只需创建组合键 x['Title']+x['Picture'] + x['Link']，然后取值：

list({x['Title']+x['Picture'] + x['Link']:x for x in master}.values())