benchmarkings lists

from timeit import timeit

a = list(range(6))
num = 1_000_000

print("toons's: ", timeit("""    
i = iter(islice(iter(a), 0, len(a), 2))      
j = iter(islice(iter(a), 1, len(a), 2))      
try:      
    while True:      
        # print("({} {})".format())      
        next(i)
        next(j)
except StopIteration: pass
""", setup="""
from itertools import islice""",
    number=num, globals=globals()), "seconds for",  num, "runs")

print("cylonoven's: ", timeit("""    
l = len(a)
[(x,a[i+1]if i+1<l else None) for i,x in enumerate(a) if i%2]
""",
    number=num, globals=globals()), "seconds for", num, "runs")


print("toon's using for loops", timeit("""
evens = islice(a, 0, len(a), 2)
odds = islice(a, 1, len(a), 2)
for even, odd in zip(evens, odds):    
    # print("({} {})".format(even, odd))
    even
    odd
""", setup="""
from itertools import islice""",
    number=num, globals=globals()), "seconds for", num, "runs")


def in_pairs(iterable):
    iterator = iter(iterable)
    try:
        while True:
            first = next(iterator)
            second = next(iterator)
            yield (first, second)
    # I believe this is required for python >= 3.7
    except StopIteration as e:
        raise e

print("dbramucci's general generator solution: ", timeit("""
for even, odd in in_pairs(a):    
    even
    odd
""", number=num, globals=globals()), "seconds for", num, "runs")