Python本身有一个threading的多线程库，非常好用。


同时还有一个线程安全的列队库Queue。使用Quete列队，就可以在多个线程之间传递消息了。


threading.Event()在主线程或者其他线程中启动另一个线程.这样作之后，我们就可以把和GUI无关的所有工作都放在别的线程处理，只在主线程进行GUI相关的显示数据绘制.


wxPython有一个子线程调用主线程UI控件的方法wx.CallAfter()，子线程调用这个方法之后，主线程的UI可以在当前事件处理结束后处理子线程发送的消息,这是wxPython中子线程给主线程发送消息最简单的方法了。


看的一个关于wxPython教程中给出了一个例子: 


#!/usr/bin/env python
# -*- coding: utf-8 -*-
import wx
import
import

class
'''
This just simulates some long-running task that periodically sends a message to the GUI thread.
    '''
def
        threading.Thread.__init__(self)
        self.threadNum = threadNum
        self.window = window
        self.timeToQuit = threading.Event() 
        self.timeToQuit.clear()
10,20) 
0.1 + 2.0
def
        self.timeToQuit.set()
def run(self):#运行一个线程
'Thread %d iterating %d times with a delay of %1.4f\n'%(self.threadNum, self.messageCount, self.messageDelay) 
        wx.CallAfter(self.window.LogMessage, msg)
for i in range(1, self.messageCount+1): 
            self.timeToQuit.wait(self.messageDelay) 
if
break
'Message %d from thread %d\n'
            wx.CallAfter(self.window.LogMessage, msg)
else:
            wx.CallAfter(self.window.ThreadFinished, self)
class
def
None, title='Multi-threaded GUI') 
        self.threads = []
0
        panel = wx.Panel(self)
1, 'Start a thread') 
1, 'Stop all threads') 
1, 'Worker Threads: 00') 
1, '',style=wx.TE_RICH|wx.TE_MULTILINE)
        inner = wx.BoxSizer(wx.HORIZONTAL) 
0, wx.RIGHT, 15) 
0, wx.RIGHT, 15)
0, wx.ALIGN_CENTER_VERTICAL) 
        main = wx.BoxSizer(wx.VERTICAL)
0, wx.ALL, 5) 
1, wx.EXPAND|wx.ALL, 5) 
        panel.SetSizer(main)
        
        self.Bind(wx.EVT_BUTTON, self.OnStartButton, startBtn) 
        self.Bind(wx.EVT_BUTTON, self.OnStopButton, stopBtn) 
        self.Bind(wx.EVT_CLOSE, self.OnCloseWindow)
        
        self.UpdateCount()
def
1
#创建一个线程 
        self.threads.append(thread)
        self.UpdateCount()
#启动线程
def
        self.StopThreads() 
        self.UpdateCount()
def
        self.StopThreads() 
        self.Destroy()
    def StopThreads(self):#从池中删除线程 while self.threads:
0] 
        thread.stop() 
        self.threads.remove(thread)
def
'Worker Threads: %d'
def LogMessage(self, msg):#注册一个消息 
        self.log.AppendText(msg)
def ThreadFinished(self, thread):#删除线程 
        self.threads.remove(thread) 
        self.UpdateCount()
app = wx.PySimpleApp() 
frm = MyFrame() 
frm.Show() 
app.MainLoop()

下边是运行结果截图: