Moving Places, Subtracting from slices/lists

[Mark Sargent]

Fredrik Lundh wrote:

>Elliot Temple wrote:
>
>  
>
>>btw hotcat[:] is a *copy* of hotcat, so just leave out "[:]"
>>    
>>
>
>when you want to modify the thing you're looping over, you need
>to be careful.  looping over a copy is often a good idea (see the
>Python tutorial and the FAQ for more on this).
>
>  
>
Yes, I saw that, and that's why I was using the copy form in the 
loop...thanx for verifying this.

>>enumerate is a function that adds indexes to a list.  observe:
>>    
>>
>
>  
>
>>>>hotcat = ['roof', 'roof', 'roof']
>>>>for index, word in enumerate(hotcat):
>>>>   if word == 'roof': del hotcat[index]
>>>>print hotcat
>>>>        
>>>>
>['roof']
>
>if I understand the OP correctly, he wants to *move* the "roof" to the
>end of the string.
>  
>
correct...

>    try:
>        hotcat.remove("root")
>        hotcat.append("root")
>    except ValueError:
>        pass
>
>is most likely the fastest way to do that.
>
></F> 
>
>  
>
will give it a blast...thanx

>
>  
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Cheers.

Mark Sargent.