The behavior of List.insert
yorklee70 at yahoo.com
Tue Apr 29 19:19:47 CEST 2003
>> mylist = [1,2,3,4,5],
>> mylist.insert(-1,99) will make mylist to be [99,1,2,3,4,5]
>> just wonder why not let it to be [1,2,3,4,99,5]
> Guido decided otherwise for whatever reason. What you observed is
> intended: from LibRef 126.96.36.199 Mutable Sequence Types
> When a negative index is passed as the first parameter to the insert()
> method, the new element is prepended to the sequence. "
> so this is not an implementation bug.
Thanks. I don't know what Guido's reason is, but I still believe that it is
nice to allow list.insert distinguish different negative indice rather than
treat all them as zero.
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