Path: csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail
From: Terry Reedy <tjreedy@udel.edu>
Newsgroups: comp.lang.python
Subject: Re: Question about code writing '% i, callback'
Date: Mon, 30 Nov 2015 12:36:56 -0500
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Xref: csiph.com comp.lang.python:99752

On 11/30/2015 11:44 AM, fl wrote:

> I come across the following code snippet.

> for i in range(10):
>      def callback():
>          print "clicked button", i
>      UI.Button("button %s" % i, callback)

> http://effbot.org/zone/default-values.htm

Note that the above is an intentional example of common buggy code.  It 
is followed by a version that works, with 'i=i' added to the callback 
header.

-- 
Terry Jan Reedy