[newbie] troubles with tuples
Larry Martell
larry.martell at gmail.com
Mon Feb 3 12:00:33 EST 2014
On Mon, Feb 3, 2014 at 11:50 AM, Jean Dupont <jeandupont314 at gmail.com> wrote:
> I'm looking at the way to address tuples
> e.g.
> tup2 = (1, 2, 3, 4, 5, 6, 7 );
>
> As I found out indices start with 0 in Python, so
> tup2[0] gives me 1, the first element in the tuple as expected
> tup2[1] gives me 2, the second element in the tuple as expected
> now here comes what surprises me:
> tup2[0:1] does not give me the expected (1,2) but (2,)
>
> what is the reason for this and how then should one get the first and the second element of a tuple? Or the 3rd until the 5th?
>
> thanks in advance and kind regards,
Some examples:
a[start:end] # items start through end-1
a[start:] # items start through the rest of the array
a[:end] # items from the beginning through end-1
a[:] # a copy of the whole array
a[-1] # last item in the array
a[-2:] # last two items in the array
a[:-2] # everything except the last two items
HTH,
-larry
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