from pyperf import Runner, perf_counter

def bench_listcomp(loops, length):
    src = list(map(float, range(length)))
    t0 = perf_counter()
    for i in range(loops):
        [x for x in src]
    return perf_counter() - t0

def bench_append(loops, length):
    src = list(map(float, range(length)))
    t0 = perf_counter()
    for i in range(loops):
        arr = []
        for x in src:
            arr.append(x)
    return perf_counter() - t0

runner = Runner()
for n in [100, 1_000, 10_000, 100_000]:
    runner.bench_time_func(f"listcomp {n}", bench_listcomp, n)
    runner.bench_time_func(f"append {n}", bench_append, n)