python ip代理池
Python 实现域名解析为ip的方法今天得了一批域名，需要把域名解析成ip
因为量比较大所以采用了多进程和队列的方式
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from multiprocessing import Process,Queue,Poolimport socketimport multiprocessingimport os #写入文件def write(q,lock，filename): while not q.empty(): url = q.get() print (url) try: ip = socket.gethostbyname(url) except: ip = "unknow" print (ip) with open(filename,'a+') as f: lock.acquire() #加锁防止多个进程写入会混乱 try: f.write(url + " " + ip + "\n") finally: lock.release() #添加到队列def readurl(q,n): with open(str(n)+'.txt','r') as f: lines = f.readlines() for line in lines: q.put(line.strip()) return q #根据进程进行拆分txtdef multi(urllist,n): with open(urllist,'r') as f: lines = f.readlines() line = int(len(lines)/n) print (line) for m in range(0,n): with open(str(m)+'.txt','a+') as f1: for i in range(line*m,line*(m+1)): f1.write(lines[i]) #删除拆分的txt文件def remove(n): for i in range(0,n): os.remove(str(i)+'.txt') print ("######清除临时文件######") if __name__ == "__main__": manager = multiprocessing.Manager() q = manager.Queue() lock = manager.Lock() m = 5 #设置扫描进程数 urllist = "url.txt" #待解析的url filename = "test.txt" #结果保存的文件名 multi(urllist,m) p = Pool(m) for i in range(m): p.apply_async(write,args=(readurl(q,i),lock,filename)) p.close() p.join() remove(m) print ("#######全部文件采集完成########") |
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原文链接：https://blog.csdn.net/qq1124794084/article/details/80534678