# Run it using: benchmark.py script bench_bytearray.py --file=original
# https://bitbucket.org/haypo/misc/src/tip/python/benchmark.py

def run_benchmark(bench):
    for length in ('10**1', '10**3', '10**5', '10**7'):
        bench.timeit('b=bytearray()\nfor i in loops:\n  b += a',
                     setup='a = b"x"; loops = range(%s)' % length,
                     name="%s bytes" % length)