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From: Mark Lawrence <breamoreboy@yahoo.co.uk>
Subject: Re: Make a colour blink
Date: Fri, 10 Oct 2014 20:25:03 +0100
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On 10/10/2014 19:51, cruzud@gmail.com wrote:
> Hello. I'm trying to make a colour blink when an event occurs.
> But the program is displaying only the last colour:
>
> self.bttn.bind('<ButtonRelease-Return>',blink)
>
> def blink(self, event=None):
>      lbl['background'] = 'red'
>      sleep(0.5)
>      lbl.['background'] = 'SystemButtonFace'
>
> Can you help?
>

Telling us what platform you're on, your OS, Python version and the 
actual GUI helps in cases like this.

-- 
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.

Mark Lawrence