Recommendation to remove index 9 for a 9-element list

[thawn]

On slides 5 - 18 and 23-24 of Python_data_structures.pdf, there is a 9-element list ("A" - "I") as an example for indexing:

I recommend to remove the index number 9:

[thawn]

I put the ppt with suggested changes on the cloud server for review.

[haesleinhuepf]

Hey @thawn ,

I think we need the 9 to explain what this code does:

data[5:9]

Does this make sense?

[thawn]

Now I understand what you mean - thanks :)

To me, the 9 was confusing, because it gave the impression that the list of indices contains the element 9.
Also, I was puzzled for a while, which index belongs to which element.

The elegance of putting the indices in-between the elements becomes clear when thinking about range-indexing.