平时工作中常用的Python零碎知识总结，爬虫学习总结与练习目录监控，文件处理，Python数据分析学习总结源码

import requests from bs4 import BeautifulSoup import time import traceback """ 爬取代理网站的免费代理并返回 """ class Crawler(object): def get_crawler_proxy(self): proxy_set_taiyang = self.crawl_taiyang() proxy_set_89 = self.crawl_89ip() proxy_set_66 = self.crawl_66ip() return proxy_set_taiyang | proxy_set_89 | proxy_set_66 def crawl_66ip(self): print('爬取66代理......') proxy_set = set() for i in range(1, 5): try: url = 'http://www.66ip.cn/{}.html'.format(i) headers = { 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9', 'Accept-Encoding': 'gzip, deflate', 'Accept-Language': 'zh-CN,zh;q=0.9', 'Host': 'www.66ip.cn', 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.97 Safari/537.36' } res = requests.get(url, headers=headers) soup = BeautifulSoup(res.text, 'html.parser') table = soup.select('.container table')[0] if soup.select('.container table') else None if not table: continue for tr in table.select('tr')[1:]: tds = tr.select('td') ip = tds[0].text port = tds[1].text proxy_ip_port = '{}:{}'.format(ip, port) proxy_set.add(proxy_ip_port) except: print('爬取66代理异常') print(traceback.format_exc()) print('爬取到66代理{}个'.format(len(proxy_set))) return proxy_set def crawl_taiyang(self): print('爬取太阳代理......') url = 'http://ty-http-d.upupfile.com/index/index/get_free_ip' headers = { 'Accept': 'text/html, */*; q=0.01', 'Accept-Encoding': 'gzip, deflate', 'Accept-Language': 'zh-CN,zh;q=0.9', 'Host': 'ty-http-d.upupfile.com', 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.97 Safari/537.36' } proxy_set = set() for i in range(1, 15): try: date = {'page': i} res = requests.post(url, data=date, headers=headers) html = res.json()['ret_data']['html'] soup = BeautifulSoup(html, 'html.parser') for item in soup.find_all(class_='tr ip_tr'): divs = item.select('div') ip = divs[0].text.replace(' ', '').replace('\n', '') port = divs[1].text.replace(' ', '').replace('\n', '') proxy_ip_port = '{}:{}'.format(ip, port) proxy_set.add(proxy_ip_port) except: print('爬取太阳代理异常') print(traceback.format_exc()) print('爬取到太阳代理{}个'.format(len(proxy_set))) return proxy_set def crawl_89ip(self): print('爬取89代理......') proxy_set = set() for i in range(1, 15): try: url = 'https://www.89ip.cn/index_{}.html'.format(i) headers = { 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9', 'Accept-Encoding': 'gzip, deflate', 'Accept-Language': 'zh-CN,zh;q=0.9', 'Host': 'www.89ip.cn', 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.97 Safari/537.36' } res = requests.get(url, headers=headers) soup = BeautifulSoup(res.text, 'html.parser') table = soup.find(class_='layui-table') for tr in table.select('tr'): tds = tr.select('td') if len(tds) > 2: ip = tds[0].text.replace(' ', '').replace('\n', '').strip() port = tds[1].text.replace(' ', '').replace('\n', '').strip() proxy_ip_port = '{}:{}'.format(ip, port) proxy_set.add(proxy_ip_port) except: print('爬取89代理异常') print(traceback.format_exc()) print('爬取到89代理{}个'.format(len(proxy_set))) return proxy_set if __name__ == '__main__': p = Crawler().get_crawler_proxy() print(p)