python reptile learning (six) kfc stores Address

The project is simpler than the Food and Drug Administration, but when I caught became http://www.kfc.com.cn/kfccda/ashx/GetStoreList.ashx crawl url of
each output is -1000 get pretty Long.
A lesson.

The second is the text format files can be output json objects

# -*- coding: utf-8 -*-

import requests
import json
if __name__ == '__main__':
    all_data_list = []
    url= 'http://www.kfc.com.cn/kfccda/ashx/GetStoreList.ashx?op=keyword'
    path=input('请输入要查询的地址：')

    headers = {
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.87 Safari/537.36'
    }

    #参数
    for pageIndex in range(1,5):
        pageIndex = str(pageIndex)
        data={
            'cname':'',
            'pid':'',
            'keyword': path,    #地址
            'pageIndex': pageIndex,     #页数
            'pageSize': '20'      #一页显示多少个
        }
        response= requests.post(url=url, headers=headers, data=data)

        all_data_list.append(response.json())
        # 输出状态码
        print(response.status_code)
        # 输出错误
        print(response.raise_for_status())
    fileName = path + '.json'
    fp = open(fileName, 'w', encoding='utf-8')
    # json中含有中文，所以要加上ensure_ascii=False
    json.dump(all_data_list, fp=fp, ensure_ascii=False)
    print(fileName, "完成")