Python爬虫百度指数关键词

用爬虫爬取百度指数关键词躺平，

分城市，拜托了各位！

#coding=gbk
import csv,datetime
import requests
url='http://index.baidu.com/api/WordGraph/multi'#百度指数-需求图谱的url
start_time=datetime.date(2020,9,6)#开始爬取日期的上一周
while True:#这里不想爬太多可以改为for循环
    next_time = start_time + datetime.timedelta(7)#+一周
    if next_time.month ==3 and next_time.day==14:#因为目前这里截止到3.7号，所以3.14时停止循环
        break
    else:
        if next_time.month == start_time.month :#如果月份都是一样的，扔进一个csv文件
            with open('baiduzhishu' + str(start_time.month) + '.csv', 'a', newline='', encoding='gbk') as f:
                writer = csv.writer(f)
                params = {
                    'wordlist[]': '原神',#这里修改关键词
                    'datelist': str(next_time.strftime('%Y%m%d'))#开始日期
                }
                res_index = requests.get(url, params=params)
                json_index = res_index.json()
                list_index = json_index['data']['wordlist'][0]['wordGraph']
                for index in list_index:
                    keyword_list = index['word']
                    writer.writerow([keyword_list])
        else:
            with open('baiduzhishu' + str(next_time.month) + '.csv', 'a', newline='', encoding='gbk') as f:#进入新的月份时新建一个csv文件
                writer = csv.writer(f)
                params = {
                    'wordlist[]': '原神',
                    'datelist': str(next_time.strftime('%Y%m%d'))
                }
                res_index = requests.get(url, params=params)
                json_index = res_index.json()
                list_index = json_index['data']['wordlist'][0]['wordGraph']
                for index in list_index:
                    keyword_list = index['word']
                    writer.writerow([keyword_list])
        start_time = next_time

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