我有以下python模块。对不起，如果代码很难看。这是我的第一个python GUI应用程序，我也是python的新手。它是某种具有待办事项列表的倒计时器。除了在运行程序两分钟后，它崩溃时出现以下错误：
Pango:ERROR:/build/buildd/pango1.0-1.28.0/pango/pango-layout.c:3739:pango_layout_check_lines: assertion failed: (!layout->log_attrs)
我完全不知道这意味着什么。我很困惑的是它在第一分钟之后起作用，即。计时器标签倒计时但是在下一分钟，它会立即崩溃。
谷歌搜索后，我认为这个问题可能与多线程有关？有什么想法吗？
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# generated by wxGlade 0.6.3 on Fri Jul 9 17:00:08 2010
import wx
import settimer
# begin wxGlade: extracode
# end wxGlade
class MyFrame(wx.Frame):
def __init__(self, *args, **kwds):
# begin wxGlade: MyFrame.__init__
kwds["style"] = wx.DEFAULT_FRAME_STYLE
wx.Frame.__init__(self, *args, **kwds)
self.todo1 = wx.TextCtrl(self, -1, "")
self.timer_label1 = wx.StaticText(self, -1, "00:00")
self.set_timer1 = wx.Button(self, -1, "Set Timer")
self.todo2 = wx.TextCtrl(self, -1, "")
self.timer_label2 = wx.StaticText(self, -1, "00:00")
self.set_timer2 = wx.Button(self, -1, "Set Timer")
self.todo3 = wx.TextCtrl(self, -1, "")
self.timer_label3 = wx.StaticText(self, -1, "00:00")
self.set_timer3 = wx.Button(self, -1, "Set Timer")
self.todo4 = wx.TextCtrl(self, -1, "")
self.timer_label4 = wx.StaticText(self, -1, "00:00")
self.set_timer4 = wx.Button(self, -1, "Set Timer")
self.todo5 = wx.TextCtrl(self, -1, "")
self.timer_label5 = wx.StaticText(self, -1, "00:00")
self.set_timer5 = wx.Button(self, -1, "Set Timer")
self.hours = 0
self.minutes = 0
self.__set_properties()
self.__do_layout()
self.Bind(wx.EVT_BUTTON, self.on_set1, self.set_timer1)
self.Bind(wx.EVT_BUTTON, self.on_set2, self.set_timer2)
self.Bind(wx.EVT_BUTTON, self.on_set3, self.set_timer3)
self.Bind(wx.EVT_BUTTON, self.on_set4, self.set_timer4)
self.Bind(wx.EVT_BUTTON, self.on_set5, self.set_timer5)
# end wxGlade
def __set_properties(self):
# begin wxGlade: MyFrame.__set_properties
self.SetTitle("Track Work")
self.todo1.SetMinSize((300, 25))
self.timer_label1.SetMinSize((100, 30))
self.timer_label1.SetFont(wx.Font(15, wx.DEFAULT, wx.NORMAL, wx.BOLD, 0, ""))
self.set_timer1.SetMinSize((85, 27))
self.todo2.SetMinSize((300, 25))
self.timer_label2.SetMinSize((100, 30))
self.timer_label2.SetFont(wx.Font(15, wx.DEFAULT, wx.NORMAL, wx.BOLD, 0, ""))
self.set_timer2.SetMinSize((85, 27))
self.todo3.SetMinSize((300, 25))
self.timer_label3.SetMinSize((100, 30))
self.timer_label3.SetFont(wx.Font(15, wx.DEFAULT, wx.NORMAL, wx.BOLD, 0, ""))
self.set_timer3.SetMinSize((85, 27))
self.todo4.SetMinSize((300, 25))
self.timer_label4.SetMinSize((100, 30))
self.timer_label4.SetFont(wx.Font(15, wx.DEFAULT, wx.NORMAL, wx.BOLD, 0, ""))
self.set_timer4.SetMinSize((85, 27))
self.todo5.SetMinSize((300, 25))
self.timer_label5.SetMinSize((100, 30))
self.timer_label5.SetFont(wx.Font(15, wx.DEFAULT, wx.NORMAL, wx.BOLD, 0, ""))
self.set_timer5.SetMinSize((85, 27))
# end wxGlade
def __do_layout(self):
# begin wxGlade: MyFrame.__do_layout
flex_sizer = wx.FlexGridSizer(5, 3, 2, 25)
flex_sizer.Add(self.todo1, 0, 0, 0)
flex_sizer.Add(self.timer_label1, 0, 0, 0)
flex_sizer.Add(self.set_timer1, 0, 0, 0)
flex_sizer.Add(self.todo2, 0, 0, 0)
flex_sizer.Add(self.timer_label2, 0, 0, 0)
flex_sizer.Add(self.set_timer2, 0, 0, 0)
flex_sizer.Add(self.todo3, 0, 0, 0)
flex_sizer.Add(self.timer_label3, 0, 0, 0)
flex_sizer.Add(self.set_timer3, 0, 0, 0)
flex_sizer.Add(self.todo4, 0, 0, 0)
flex_sizer.Add(self.timer_label4, 0, 0, 0)
flex_sizer.Add(self.set_timer4, 0, 0, 0)
flex_sizer.Add(self.todo5, 0, 0, 0)
flex_sizer.Add(self.timer_label5, 0, 0, 0)
flex_sizer.Add(self.set_timer5, 0, 0, 0)
self.SetSizer(flex_sizer)
flex_sizer.Fit(self)
self.Layout()
# end wxGlade
def on_set1(self, event): # wxGlade: MyFrame.<event_handler>
app = wx.PySimpleApp(0)
wx.InitAllImageHandlers()
MyTimer = settimer.Timer(None, -1, "")
MyTimer.get_out_instance(self)
app.SetTopWindow(MyTimer)
MyTimer.Show()
app.MainLoop()
event.Skip()
def set_label(self):
self.timer_label1.SetLabel("%02d:%02d" % (self.hours, self.minutes))
self.minutes -= 1
# end of class MyFrame
if __name__ == "__main__":
app = wx.PySimpleApp(0)
wx.InitAllImageHandlers()
main_frame = MyFrame(None, -1, "")
app.SetTopWindow(main_frame)
main_frame.Show()
app.MainLoop()
timer.py
import threading
import time
class Timer(threading.Thread):
def __init__(self, seconds, track):
threading.Thread.__init__(self)
self.total_time = seconds
self.track = track
def run(self):
for sec in range(self.total_time):
time.sleep(60)
self.track.set_label()
settimer.py
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# generated by wxGlade 0.6.3 on Fri Jul 9 16:49:11 2010
import wx
import timer
# begin wxGlade: extracode
# end wxGlade
class Timer(wx.Frame):
def __init__(self, *args, **kwds):
# begin wxGlade: Timer.__init__
kwds["style"] = wx.DEFAULT_FRAME_STYLE
wx.Frame.__init__(self, *args, **kwds)
self.hours_text = wx.TextCtrl(self, -1, "")
self.hours = wx.StaticText(self, -1, "HH")
self.minutes_text = wx.TextCtrl(self, -1, "")
self.minutes = wx.StaticText(self, -1, "MM")
self.set = wx.Button(self, -1, "Set")
self.out_instance = None
self.__set_properties()
self.__do_layout()
self.Bind(wx.EVT_BUTTON, self.on_set, self.set)
# end wxGlade
def __set_properties(self):
# begin wxGlade: Timer.__set_properties
self.SetTitle("Set Timer")
self.hours_text.SetMinSize((40, 25))
self.hours.SetFont(wx.Font(12, wx.DEFAULT, wx.NORMAL, wx.BOLD, 0, ""))
self.minutes_text.SetMinSize((40, 25))
self.minutes.SetFont(wx.Font(12, wx.DEFAULT, wx.NORMAL, wx.BOLD, 0, ""))
self.set.SetMinSize((50, 27))
# end wxGlade
def __do_layout(self):
# begin wxGlade: Timer.__do_layout
flex_sizer = wx.FlexGridSizer(1, 5, 0, 4)
flex_sizer.Add(self.hours_text, 0, 0, 0)
flex_sizer.Add(self.hours, 0, wx.ALIGN_CENTER_VERTICAL, 0)
flex_sizer.Add(self.minutes_text, 0, 0, 0)
flex_sizer.Add(self.minutes, 0, wx.ALIGN_CENTER_VERTICAL, 0)
flex_sizer.Add(self.set, 0, wx.ALIGN_CENTER_VERTICAL, 0)
self.SetSizer(flex_sizer)
flex_sizer.Fit(self)
flex_sizer.AddGrowableRow(1)
flex_sizer.AddGrowableCol(3)
self.Layout()
# end wxGlade
def get_out_instance(self, out):
# get the instance of trackwork
# this method is meant to be called outside this class
self.out_instance = out
def on_set(self, event): # wxGlade: Timer.<event_handler>
self.out_instance.hours = int(self.hours_text.GetValue())
self.out_instance.minutes = int(self.minutes_text.GetValue())
self.out_instance.set_label()
t = timer.Timer(self.out_instance.minutes, self.out_instance)
t.start()
self.Destroy()
event.Skip()
# end of class Timer