[Tutor] is the the two style of writting the same?

[Prasad, Ramit]

tan Sikonai wrote:
> 
> ?

You should wait at least 24 hours as many people in this mailing list
are around the world and may not see this immediately.

> 
> 2013/8/20 sikonai sikonai <tanjyunda at gmail.com>
> >>> list=[1,2,3,4,5,6,7,8,9]
> >>> list[9:0:-2]
> [9, 7, 5, 3]
> >>> list[10:0:-2]
> [9, 7, 5, 3]
> 
> I want to know whether they have some difference.

You should try and avoid using built-in names like "list" as this shadows 
list function.

Yes, there is a difference. Python slices ignore out of range elements so 
this becomes the last element and elements with a -2 step (meaning traverse 
the list in reverse and select every other element) until you get to the
0th slot.


>>> list[100:0:-2]
[9, 7, 5, 3]


~Ramit



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