Python "why" questions

[MRAB]

Russ P. wrote:
> Yes, apparently Basic uses one-based indexing too.
> 
For arrays, yes and no. Traditionally, DIM A(10) has 11 elements,
starting at 0, although it might depend on the version of Basic.

For strings, yes.

> As for Ada, apparently, the programmer needs to explicitly define the
> index range for every array. Weird. But I get the impression that one-
> based indexing is used much more than zero-based indexing.