python爬虫（可用）

最新推荐文章于 2023-08-14 17:26:41 发布

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最新推荐文章于 2023-08-14 17:26:41 发布

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CC 4.0 BY-SA版权

文章标签： python

本文链接：https://blog.youkuaiyun.com/weixin_44177309/article/details/103685354

本文介绍了一种使用Python爬取淘宝电影网站数据的方法，通过requests和lxml.etree解析网页，获取电影名称、简介和评分等信息，并将数据保存到本地文件中。此爬虫展示了如何设置请求头避免反爬，利用XPath提取所需数据。

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import requests
import time
import csv
from lxml import etree
# headers={"User-Agent":}

for i in range(1):
    final = []
    url = "https://dianying.taobao.com/showList.htm?spm=a1z21.3046609.w2.3.4d60112aCdaBZl&n_s=new"
    headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36'}
    html = requests.get(url,headers=headers)
    code = html.status_code
    print(code)
    if code == 200:
      selecter = etree.HTML(html.text)
      files = selecter.xpath('/html/body/div[4]/div[1]/div[2]/div[1]/div')
     #  print(files)
      temp = []
      for file in files:        
          book_name=file.xpath("./a[1]/div[3]/span[1]/text()")[0]
          # /html/body/div[4]/div[1]/div[2]/div[1]/div[1]/a[1]/div[3]/span[1]
         #  book_introduce=file.xpath('./a[1]/div[4]/div[2]/span[2]/text()')[0]


          book_introduce_files = file.xpath('./a[1]/div[4]/div[2]/span')
          book_introduce_temp = []
          for book_introduce_file in book_introduce_files:
                
                book_introduce_temp.append(book_introduce_file.text)
               #  book_introduce_1 = file.xpath('./text()')
                
                
          # /html/body/div[4]/div[1]/div[2]/div[1]/div[1]/a[1]/div[4]/div[2]
          # //*[@id="content"]/div/div[1]/div/div/table[1]/tbody/tr/td[2]/div/p/text()
         #  book_grades=file.xpath('./a[1]/div[3]/span[2]/text()')
          if file.xpath('./a[1]/div[3]/span[2]/text()') != []:
            book_grades=file.xpath('./a[1]/div[3]/span[2]/text()')[0]
          else:
            book_grades=''
          # /html/body/div[4]/div[1]/div[2]/div[1]/div[1]/a[1]/div[3]/span[2]
          # //*[@id="content"]/div/div[1]/div/div/table[1]/tbody/tr/td[2]/div/div/span[2]
          # book_scrible=file.xpath('./tr/td[2]/p[2]/span/text()')
          print("电影名：{}\n".format(book_name))
          temp.append(book_name)
          print("电影基本信息：\n")
          for s in book_introduce_temp:
            print("                  {}\n".format(s))
            temp.append(s)
          print("电影评分：{}\n".format(book_grades))
          temp.append(book_grades)
          temp.append('\n')
          print('\n')
    
    else:
        continue
    final.append(temp)
with open('maoyan.text', 'w+', errors='ignore', newline='',encoding='utf-8') as f:
        f_txt = csv.writer(f)
        f_txt.writerows(final)