Python crawler tutorial: free paid material crawling from [source code attached]

We all know that it's very easy to collect a large number of design materials, but it's too expensive. Today, I'll take you to use Python crawler to crawl these materials and save them locally!

To capture the content of a website, we need to start from the following aspects:

1 - how to grab the next link of the website?

2 - whether the target resource is static or dynamic (video, picture, etc.)

3 - data structure format of the website

The source code is as follows

import requests
from lxml import etree
import threading
class Spider(object):
    def __init__(self):
        self.headers = {"User-Agent":"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36"}
        self.offset = 1
    def start_work(self, url):
        print("Climbing to the top %d page......" % self.offset)
        self.offset += 1
        response = requests.get(url=url,headers=self.headers)
        html = response.content.decode()
        html = etree.HTML(html)
        video_src = html.xpath('//div[@class="video-play"]/video/@src')
        video_title = html.xpath('//span[@class="video-title"]/text()')
        next_page = "http:" + html.xpath('//a[@class="next"]/@href')[0]
        # Climb over
        if next_page == "http:":
        self.write_file(video_src, video_title)
    def write_file(self, video_src, video_title):
        for src, title in zip(video_src, video_title):
            response = requests.get("http:"+ src, headers=self.headers)
            file_name = title + ".mp4"
            file_name = "".join(file_name.split("/"))
            print("Grabbing%s" % file_name)
            with open('E://python//demo//mp4//'+file_name, "wb") as f:
if __name__ == "__main__":
    spider = Spider()
    for i in range(0,3):
        # spider.start_work(url=""+ str(i) +"-1.html")
        t = threading.Thread(target=spider.start_work, args=(""+ str(i) +"-1.html",))

Effect display

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Tags: Programming Python Windows

Posted on Sat, 30 May 2020 07:38:42 -0700 by blogger3