使用python爬取天气预报，[python入门案例]

 # 天气网余姚地区爬虫案例
 import requests
 from lxml import etree

 class WeatherSpider:

     def __init__(self):
         self.url = "http://www.weather.com.cn/weather/101210404.shtml"
         self.headers = {
             "User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.119 Safari/537.36"}

     def get_url_content(self):
         return requests.get(self.url, headers=self.headers).content.decode()

     def get_weather_data(self, html):
         tmp_html = etree.HTML(html)
         tomorrow_doc = tmp_html.xpath("//div[contains(@class,'con') and contains(@class,'today')]//div[@class='c7d']/ul/li[2]")[0]
         weather_data = {}
         weather_data["date"] = tomorrow_doc.xpath("./h1/text()")[0]
         weather_data["weather"] = tomorrow_doc.xpath("./p[@class='wea']/@title")[0]
         weather_data["temperature_max"] = tomorrow_doc.xpath("./p[@class='tem']/span/text()")[0]
         weather_data["temperature_min"] = tomorrow_doc.xpath("./p[@class='tem']/i/text()")[0]
         weather_data["air_speed"] = tomorrow_doc.xpath("./p[@class='win']/i/text()")[0]
         return weather_data

     def run(self):
         # 获取url请求内容
         content_html = self.get_url_content()
         # 根据url内容获取天气数据
         data = self.get_weather_data(content_html)
         # 打印爬取的天气数据
         print(data)

 if __name__ == '__main__':
     spider = WeatherSpider()
     spider.run()

爬取结果

自己刚学爬虫不久，利用爬虫爬取天气网，每次可以抓取第二天的天气状况，一个小demo