At this point, I have two things to understand.
import json
j = {
    "employee":
        [
            {"id": 111,"name": "John"},
            {"id": 222,"name": "Elle"}
        ]
}
print(j)
a = json.dumps(j)
print(json.dumps(a))
with open('test.json','w') as f:
    json.dump(j,f)
with open('test.json','r') as f:
    print(json.load(f)) #Read and write the output file in the file.
Getting page elements using Ajax.
 $.ajax({
    url: "./information.json",
    dataType: "json"
  })
  .done(function(json){
    var idx = 0; 
    var $info = $(".info__list .item");
    $info.find("time").text(json[idx].date);
    $info.find("p").text(json[idx].value);
    setInterval(function(){
      if(idx === json.length -1){
        idx = 0;
      } else {
        idx = idx + 1;
      }
      $info.css("opacity",0);
      setTimeout(function(){
        $info.find("time").text(json[idx].date);
        $info.find("p").text(json[idx].value);
        $info.css("opacity",1);
      },500);
    },5000)
  });
It seems that you can get the information of the web page by a third party called requests. Let's also check the code for acquiring JavaScript information.
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