[Tutor] list initialization question

[Tim Condit]

Hello again, 


On Mon, 3 Apr 2000, Tim Condit wrote:

> 
> Greetings, 
> 
> Why thus?
> 
> Why does this fail...
> 
> >>> x = []
> >>> for i in range(11):
> ...      x[i] = whrandom.randint(1, 100)
> ...      print i, x[i]
> ...  
> Traceback (innermost last):
>   File "<stdin>", line 2, in ?
> IndexError: list assignment index out of range
> 
> 
> ... but this succeeds? 
> 
> >>> x = range(11)
> >>> x
> [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
> >>> for i in range(11):
> ...      x[i] = whrandom.randint(1, 100)
> ...      print i, x[i]
> ... 
> 0 96
> 1 38
> 2 20
> 3 52
> 4 60
> 5 7
> 6 46
> 7 78
> 8 5
> 9 81
> 10 89
> 
> 
> Is it necessary to not only initialize a list, but also to populate it? Or
> am I doing something wrong (I hope so..)? If you can add, delete, etc.
> items to a list, then why am I getting the error "list assignment index
> out of range"? 
> 
> Thanks! 
> Tim
> 
> 
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