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frommul

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

from multiprocessing import Process,Queue,Pool
import socket
import multiprocessing
import 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txt
def 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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