Circular iteration on tuple starting from a specific index

[Beppe]

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?

regards
beppe