为什么 Windows 中的 wxPython 中的菜单栏项会延迟，而 OS X 中的菜单栏项会立即出现？

Question

请参阅下面的精简示例脚本。当我在 OS X 中运行它时，菜单栏的行为与您期望的完全一样。然而，在 Windows 中，“慢速”菜单项的渲染存在明显的延迟（在我的 2GHz Core 2 Duo 上约为 4 秒）。这感觉根本不对，让应用程序显示良好的旧（未响应）警告并不完全是您在菜单中单击后所期望的行为。

以前有人遇到过这个问题吗？我在 Windows 端做错了什么吗？

就版本而言，我使用最新的稳定版 2.8.12.1 和开发版 2.9.2.1 进行了测试，并且我运行的是 Python 2.7。

import wx
from operator import itemgetter
from itertools import groupby

class MainFrame(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None, title='Hello', size=(1150,700))
        self.panel = wx.Panel(self, -1)
        file_menu = wx.Menu()
        open_item = file_menu.Append(-1, 'Open Something')
        self.slow_menu = wx.Menu()
        another_menu = wx.Menu()
        another_item = another_menu.Append(-1, 'Something')
        more_menu = wx.Menu()
        more_item = more_menu.Append(-1, 'Else')
        self.menu_bar = wx.MenuBar()
        self.menu_bar.Append(file_menu, 'File')
        self.menu_bar.Append(self.slow_menu, 'Slow')
        self.menu_bar.Append(another_menu, 'Fake')
        self.menu_bar.Append(more_menu, 'Hello')
        self.SetMenuBar(self.menu_bar)
        self.setup_slow_menu()
        self.Bind(wx.EVT_CLOSE, self.OnClose)
    def OnClose(self, event):
        self.Destroy()
    def OnDud(self, event):
        pass
    def setup_slow_menu(self):
        names = """
        James    Christopher    Ronald        Mary    Lisa    Michelle
        John     Daniel  Anthony         Patricia     Nancy   Laura
        Robert   Paul     Kevin       Linda   Karen   Sarah
        Michael  Mark     Jason       Barbara     Betty   Kimberly
        William  Donald   Jeff        Elizabeth   Helen   Deborah
        David    George   Jennifer    Sandra
        Richard  Kenneth Maria    Donna
        Charles  Steven  Susan    Carol
        Joseph   Edward  Margaret     Ruth
        Thomas   Brian   Dorothy      Sharon""".split()
        some_data = ['red','blue','white','orange','brown']
        some_more_data = ['socks','pants','shirts','gloves','hats','red','blue','white','orange','brown']
        subs = ['Bla', 'Blabla']
        subsubs = []
        for name in names[:25]:
            subsubs.append((subs[0], name))
        for name in names[25:]:
            subsubs.append((subs[1], name))
        for sub in subs:
            sub_menu = wx.Menu()
            self.slow_menu.AppendMenu(-1, sub, sub_menu)
            for sub, subsub in [r for r in subsubs if r[0]==sub]:
                subsub_menu = wx.Menu()
                sub_menu.AppendMenu(-1, subsub, subsub_menu)
                for i in xrange(30):
                    subsubsub_menu = wx.Menu()
                    subsub_menu.AppendMenu(-1, str(i), subsubsub_menu)
                    for label in some_more_data:
                        menu_item = wx.MenuItem(subsubsub_menu, id=wx.NewId(), text=label)
                        subsubsub_menu.AppendItem(menu_item)
                        self.Bind(wx.EVT_MENU, self.OnDud, id=menu_item.GetId())
                for label in some_data:
                    menu_item = wx.MenuItem(subsub_menu, id=wx.NewId(), text=label)
                    subsub_menu.AppendItem(menu_item)
                    self.Bind(wx.EVT_MENU, self.OnDud, id=menu_item.GetId())
            for label in some_data:
                menu_item = wx.MenuItem(sub_menu, id=wx.NewId(), text=label)
                sub_menu.AppendItem(menu_item)
                self.Bind(wx.EVT_MENU, self.OnDud, id=menu_item.GetId())
        for label in some_data:
            menu_item = wx.MenuItem(self.slow_menu, id=wx.NewId(), text=label)
            self.slow_menu.AppendItem(menu_item)
            self.Bind(wx.EVT_MENU, self.OnDud, id=menu_item.GetId())

if __name__ == "__main__":
    app = wx.PySimpleApp()
    frame = MainFrame()
    frame.Show()
    app.MainLoop()

Answer 1

我稍后将其发布到 wxPython 列表上，并得到了这个 回复。其实没什么问题，只是 XP 就是 XP 而已。