一、简述

记--使用BeautifulSoup获取天气信息。

例子打包：外链:https://wwm.lanzouv.com/b0cb0vs2f密码:2gsf

二、效果

对比原来的网页：

三、源文件

GetWeather.py

#!/usr/bin/env python3
import requests
from bs4 import BeautifulSoup

# 获取网页文本内容
def getHTMLText(url):
    headers = {
        "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36"
    }
    try:
        r = requests.get(url=url, headers=headers)
        r.raise_for_status()
        r.encoding=r.apparent_encoding
        return r.text
    except:
        print('fail')
        return ""

# 获取天气信息
def getWeather():
    url = 'https://www.tianqi.com/beijing/15'
    #print(url)
    html = getHTMLText(url)
    if (0 == len(html)):
        print('getHTMLText fail')
        return
    #print(html)
    
    # 解析网页内容
    soup = BeautifulSoup(html, 'html.parser')

    # 获取当前温度
    weather_info = soup.find('div', class_='weaone_ba').get_text()
    print(weather_info)


# 调用
getWeather()

四、总结

4.1 获取url:url = 'https://www.tianqi.com/beijing/15'

4.2获取天气信息所在元素标签：weather_info = soup.find('div', class_='weaone_ba').get_text()

4.3 更新浏览器代理 (非必需，个别网页对浏览器版本有要求)

headers = {
        "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36"
    }

使用浏览器打开某一个网页，找到对应的http请求头即可

4.4 动态网页爬取可使用selenium