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why does my python's program die after change computer system time?

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Microsoft windowsXP 中,在python2.6下运行如下程序,显示一个时间的窗口 5彼髯烂嬗蚁陆堑氖奔洌缓蟾氖奔浠蛉
期,多次更改后,我的时间窗口就死机了,时间不变了。 好像是after(200, tick)不运行了。不知道为怎么这个定时器会死掉呢。请 魑恢附蹋

import Tkinter
import time

curtime = ''
clock_label = Tkinter.Label()

def tick():
global curtime
newtime = time.strftime('%Y-%m-%d %H:%M:%S')
if newtime != curtime:
curtime = newtime
clock_label.after(200, tick)


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Gabriel Genellina
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En Wed, 03 Jun 2009 04:08:03 -0300, fuzziy <(E-Mail Removed)>

> [why does my python's program die after change computer system time?]

> def tick():
> current time...
> clock_label.after(200, tick)

What do you mean by "die"?
Did you set the system time to an earlier value? Suppose now it is
09:15:00.000; your program says after(200, tick), that means that at
09:15:00.200 the tick() function will be called. If you
set the time back to 09:00:00 your program has 15 minutes still to wait.
It hasn't died, it's just waiting for the right time to arrive.

I'm not sure if this can be considered a bug, or not, or who's responsible
(tcl? tk? tkinter? python?...)

Gabriel Genellina

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