On 24 Jul 2012, at 2:57 PM, villas wrote:
> But why not this which seems much more readble?
> 
> value = +1 if mode == 'plus' else -1

Originally for compatibility with Python 2.4. Not sure how much of a priority 
that is these days...

> 
> 
> 
> On Tuesday, July 24, 2012 10:20:51 PM UTC+1, pjryan126 wrote:
> I'm working through this same example, and I'm having trouble understanding 
> how the following resolves:
> 
> value = (mode=='plus') and +1 or -1
> 
> Can anyone explain to me what is happening with this line of code?
> 
> 
> On Monday, March 26, 2012 10:28:27 AM UTC-4, Omi Chiba wrote:
> OK it worked !
> 
> The indent for last three line was wrong on book and it was fixed on the 
> downloaded code.
> 
> 
> 
> On Friday, March 23, 2012 6:18:36 PM UTC-5, Omi Chiba wrote:
> Alan, 
> 
> Thanks. Good idea. I will try the support files. 
> 
> 
> Sent from my Verizon Wireless BlackBerry 



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