Python2.7实现多进程下开发多线程示例

#!/usr/bin/env python# -*- coding: utf-8 -*-""" @Time : 2018/10/24 @Author : LiuXueWen @Site :  @File : transfer.py @Software: PyCharm @Description: """import osimport tracebackimport threadingfrom multiprocessing import Poolfrom multiprocessing.dummy import Pool as ThreadPool# 兼容python2.7上多线程的bug，不加上下面的反代理程序不能正常执行def proxy(cls_instance, i): return cls_instance.multiprocess_thread(i)def proxy2(cls_instance, i): return cls_instance.file_operation(i)class file2transfer(): # 多进程执行程序 def multiprocessingTransferFiles(self):  try:   # 创建进程池   p = Pool()   //参数末尾必须加上逗号   p.apply_async(proxy, args=(self, self.root_path,))   p.close()   p.join()  except Exception as e:   print(e) # 每个进程下的多线程执行，线程数等于当前机器的核数 def multiprocess_thread(self, root_path):  try:   # 创建线程锁   lock = threading.RLock()   lock.acquire()   # 获取每个文件   for pfile in os.listdir(root_path):    # 获取文件的完整路径    full_file_path = os.path.join(root_path, pfile)    # 多线程读写文件    p = ThreadPool()    # 执行线程    p.apply_async(proxy2, args=(self, full_file_path,))    p.close()    p.join()  except Exception as e:   print(e)  finally:   # 释放线程锁   lock.release() # 对每个文件夹下的每个文件进行操作 def file_operation(self, full_file_path):  try:   // TODO 真正需要单独执行的操作   pass  except Exception as e:   print(e)