def touch(path, times=None):

    with file(path, 'a'):
        os.utime(path, times)
Return an instance baised on its url.
dataset/ETHPy150Open jlisee/xpkg/python/xpkg/util.py/touch--crossover with--dataset/ETHPy150Open bmbouter/Opus/opus/lib/prov/deltacloud_old/deltacloud.py/Deltacloud.fetch_instance