Python追加key到json文件

話不多說，先上代碼：

#原data.json文件:
{
	'shortdisc':"hello,json",
	'image':"localhost:8080/usr/images/image.jpg"

}
#追加key至data.json文件：
embed = {'id':1,'url':"www.baidu.com"}
fr = open('usr/local/folder/data.json')
model = json.load(fr)
fr.close
for i in embed[i]:
	model[i] = embed[i]

jsObj = json.dumps(model)

with open('usr/local/folder/data.json',"w") as fw:
	fw.write(jsObj)
	fw.close() 

#運行後data.json：
{
	'shortdisc':"hello,json",
	'image':"localhost:8080/usr/images/image.jpg"，
	'id':1,
	'url':"www.baidu.com"

}