[issue14097] Improve the "introduction" page of the tutorial

[Eli Bendersky]

Eli Bendersky <eliben at gmail.com> added the comment:

Comments on some of the suggestions:

1) Agreed
2) Can be combined with (3), I think. Just show the number example with the explanatory comments. They speak for themselves. No need for the SPAM and STRING assignments.
5) Yep. Can be replaced by "A value can be assigned to several variables in a single statement"
6) There's the tradeoff of rigor vs. simplicity here, since this is still a tutorial for beginners, right? What alternative would you propose?
7) Totally agree. I don't think complex numbers deserve more than a single trivial example and one sentence dedicated to them in the tutorial, if that...
8) Yes. See my previous message in this issue
9) "It differs from just writing the expression you want to write" is definitely confusing
10) Agree
11) This is kind-of mentioned later in the negative index part. It may be worth mentioning that a single index must be within bounds, but the explanation on degenerate slices has its place too, since it's a friendly feature of Python many rely on.
12) Agree
13) This is probably too arguable to be included. With Python's duck typing there *is* sometimes place for placing different objects in the same list, with the understanding that they all have some common behavior (for example, callables).
14) Agree

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue14097>
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