Python多處理問題，而傳遞kwargs

Question

我想創建一個線程，而在一個類內啓動另一個類的構造函數，但它看起來像pool.apply_async沒有像我期望的那樣傳遞kwargs。這裏是我的代碼（下調至僅包括線程代碼）：

from MyDatabaseScript import DB 

class Trinity: 
     def __init__(self): 

     #lets split a thread off and work on connecting to the mysql server 
     pool = ThreadPool(processes=1) #establish the thread pool 

     #I want to pass 'self' as an arg to DB because the Trinity instance has class variables that I want to use 
     args, kwargs = (self,), {"host":"my.server.name", "user": "databaseuser", "passwd": "xxxxxxxxxxx", "db": "database name"} 

     async_result = pool.apply_async(DB(), args, kwargs) #create the thread pool call for the DB class with the kwargs 

現在所有工作正常，我沒有得到任何錯誤，但在DB（）方我的代碼看起來簡單，這：

import MySQLdb 

class DB: 
     def __init__(self, tms=None, **kwargs): 
      print tms, kwargs 

的問題是，__init__函數內的打印命令不打印任何東西，我得到這個：

None {} 

Answer 1

ÿ ou呼叫DB而不是通過DB到pool.apply_async。

跌落()：

async_result = pool.apply_async(DB, args, kwargs)