利用线程和事件系统更新 tkinter 的进度条，在同步的时候卡住了，求大佬帮看下。。。

最近在用 python 写工具给小组的其他成员使用，因为需要可以在 GUI 上输入不同的变量值做不同的判断处理所以最后写了一个 gui 。现在问题是，最后我希望写一个进度条，可以在主线程的 for-loop 中，每处理完一个任务后发送一个事件，给在另外一个线程的事件管理器，事件管理器可以立刻更新响应 GUI 的进度条的进度。下面是我写的代码：

from queue import Queue, Empty
from threading import *
from tkinter import *
import time
from tkinter import ttk

EVENT_TYPE_1 = "Count"
MAX_NUMBER = 10
CUR_NUMBER = 0

class event_manager:
    def __init__(self):
        self._eventQueue = Queue()
        self._thread = Thread(target=self.Run)
        self._handlers = {}
        self._active = False

    def Start(self):
        self._active = True
        self._thread.start()

    def Run(self):
        while self._active is True:
            try:
                event = self._eventQueue.get(block=True, timeout=1)
                self.Process(event)
            except Empty:
                pass

    def Process(self, event):
        if event.type in self._handlers:
            for handler in self._handlers[event.type]:
                handler()
        else:
            pass

    def Stop(self):
        self._active = False
        self._thread.join()

    def addEventListenter(self, type_, handler):
        try:
            handlerList = self._handlers[type_]

        except KeyError:
            handlerList = []
            self._handlers[type_] = handlerList

        if handler not in handlerList:
            handlerList.append(handler)

    def removeEventListenter(self, type_, handler):
        try:
            handlerList = self._handlers[type_]
            if handler in handlerList:
                handlerList.remove(handler)
            if not handlerList:
                del self._handlers[type_]
        except KeyError:
            pass

    def sendEvent(self, event):
        self._eventQueue.put(event)


class Event:
    def __init__(self, event_event_name, cur_done_task, type_=None):  
        self.type = type_
        self._event_name = event_event_name
        self._curDoneTask = cur_done_task


class EventSource:
    def __init__(self, event_name, event_mgr, max_number, type):
        self._event_name = event_name
        self._event_manager = event_mgr
        self._type = type
        self._max_number = max_number

    def count(self):
        global CUR_NUMBER
        for i in range(self._max_number):
            CUR_NUMBER = i + 1
            print("************ main thread start：now start process {} - count : {}".format(self._event_name, CUR_NUMBER))
            event = Event("test", CUR_NUMBER, type_=self._type)
            self._event_manager.sendEvent(event)
            time.sleep(1)

class GUIListener(Tk):
    def __init__(self):
        super(GUIListener, self).__init__()

        self.title("Progress GUI")
        self.geometry("1200x805+600+100")
        self.config(bg="#535353")
        self.resizable(True, True)

        self.progressBar = ttk.Progressbar(master=self, orient=HORIZONTAL, maximum=MAX_NUMBER, length=300)
        self.progressBar.pack()
        self.button = ttk.Button(self, text="Run", command=lambda: self.button_function(MAX_NUMBER))
        self.button.pack()

    def update_progress_value(self):
        print("************Sub thread start: detect progress bar value is now...{}".format(self.progressBar['value']))
        self.progressBar['value'] = CUR_NUMBER
        self.progressBar.update_idletasks()
        print("************Sub thread start: update progress bar value to...{}".format(CUR_NUMBER))

    def button_function(self,max_number):
        es = EventSource("eventSource", eventMgr, max_number, EVENT_TYPE_1)
        es.count()

if __name__ == '__main__':
    gui = GUIListener()

    eventMgr = event_manager()
    eventMgr.addEventListenter(EVENT_TYPE_1, gui.update_progress_value)
    eventMgr.Start()

    gui.mainloop()

现在的问题是，返回的结果很奇怪，是这样的：

************ main thread start：now start process eventSource - count : 1
************ main thread start：now start process eventSource - count : 2
************ main thread start：now start process eventSource - count : 3
************ main thread start：now start process eventSource - count : 4
************ main thread start：now start process eventSource - count : 5
************ main thread start：now start process eventSource - count : 6
************ main thread start：now start process eventSource - count : 7
************ main thread start：now start process eventSource - count : 8
************ main thread start：now start process eventSource - count : 9
************ main thread start：now start process eventSource - count : 10
************Sub thread start: detect progress bar value is now...0.0
************Sub thread start: update progress bar value to...10
************Sub thread start: detect progress bar value is now...10
************Sub thread start: update progress bar value to...10
************Sub thread start: detect progress bar value is now...10
************Sub thread start: update progress bar value to...10
************Sub thread start: detect progress bar value is now...10
************Sub thread start: update progress bar value to...10
************Sub thread start: detect progress bar value is now...10
************Sub thread start: update progress bar value to...10
************Sub thread start: detect progress bar value is now...10
************Sub thread start: update progress bar value to...10
************Sub thread start: detect progress bar value is now...10
************Sub thread start: update progress bar value to...10
************Sub thread start: detect progress bar value is now...10
************Sub thread start: update progress bar value to...10
************Sub thread start: detect progress bar value is now...10
************Sub thread start: update progress bar value to...10
************Sub thread start: detect progress bar value is now...10
************Sub thread start: update progress bar value to...10

请大佬指点一下，因为我希望的结果是类似下面这样立刻响应插入的顺序：

************ main thread start：now start process eventSource - count : 1
************Sub thread start: detect progress bar value is now...0.0
************Sub thread start: update progress bar value to...1
************ main thread start：now start process eventSource - count : 2
************Sub thread start: detect progress bar value is now...1.0
************Sub thread start: update progress bar value to...2
************ main thread start：now start process eventSource - count : 3
************Sub thread start: detect progress bar value is now...2.0
************Sub thread start: update progress bar value to...3
...
etc

真的这个问题困扰了我蛮久了，希望大佬可以不吝赐教，指点问题发生在哪里，如何修改可以达到预期目的，感激不尽！