multithreading - Python - Multiprocessing Pool Class: Can the Thread Function contain arguments? -

i want know if possible pass arguments threading pool funktion?

from multiprocessing.dummy import pool threadpool   def mainfunc():     myarray = ["a", "b", "c"]      pool = threadpool(8)      pool.map(threadfunc, myarray)   # how possible give >>threadfunc<< argument >>text1<<     pool.close()     pool.join()  def threadfunc(text2):     text1 = "hello "                # should given argument  of function     print text1 + text2  mainfunc() 

this simple example of want do.. how can give text1 second argument threadfunc function?

solved:

i solved problem simple global accessible variable ... solution problem had right ... greater idea use multiprocessing.process instead ...

import sys multiprocessing.dummy import pool threadpool   = sys.modules[__name__]   def mainfunc():     myarray = ["a", "b", "c"]     this.text1 = "hello "      pool = threadpool(8)      pool.map(threadfunc, myarray)   # how possible give >>threadfunc<< argument >>text1<<     pool.close()     pool.join()  def threadfunc(text2):     print this.text1 + text2  mainfunc() 

1. the official python docs says

   a parallel equivalent of map() built-in function (it supports 1 iterable argument though). blocks until result ready.

   therefore impossible add argument, can add text1 last element of myarray , pop out once use it.

2. you can use multiprocessing.process other pool. in case can add argument easily.

   def f(name):     print 'hello', name  if __name__ == '__main__':     p = process(target=f, args=('bob',))     p.start()     p.join()