How to conditionally skip number of iteration steps in a for loop in python?

Question

We have a list item_list,

item_list = [\"a\", \"b\", \"XYZ\", \"c\", \"d\", \"e\", \"f\", \"g\"]

We iterate over its items with a

Answer 1

I would split the processing it two parts for sake of readability

>>> def foo(item_list,key = "XYZ", skip = 3):
    from itertools import takewhile, islice
    def do_something():
        return "do_something()"
    def do_something_else():
        return "do_something_else()"
    it = iter(item_list)
    for items in takewhile(lambda e: e != key, it):
        print items, do_something_else()
    print do_something()
    it = islice(it,skip, None)
    for items in it:
        print items, do_something_else()


>>> foo(item_list)
a do_something_else()
b do_something_else()
do_something()
f do_something_else()
g do_something_else()