Circular iteration on tuple starting from a specific index

[MRAB]

On 2017-05-30 17:25, Beppe wrote:
> hi all
> 
> I've a tuple, something like
> 
> x = ("A","B","C","D","E","F","G","H",)
> 
> I would want to iterate on all tuple's elements
> starting from a specific index
> 
> 
> something like
> 
> Python 2.7.9 (default, Jun 29 2016, 13:08:31)
> [GCC 4.9.2] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
>>>> x = ("A","B","C","D","E","F","G","H",)
>>>> for i in x[2:]:
> ...     print i
> ...
> C
> D
> E
> F
> G
> H
>>>> 
> 
> 
> 
> with the difference that I would want to restart from the beginning when I reach the end of the tupla
> 
> 
> C
> D
> E
> F
> G
> H
> A
> B
> 
> I would want to make a circular iteration....
> 
> suggestions?
> 
How about this:
x = ("A","B","C","D","E","F","G","H",)
offset = 2

for i in x[offset : ] + x[ : offset]:
     print i