def touch(fname, times=None):
    fhandle = open(fname, 'a')
    try:
        os.utime(fname, times)
    finally:
        fhandle.close()
no settings: manage.py builtin commands fail if settings file (from environment) doesn't exist
dataset/ETHPy150Open EricssonResearch/calvin-base/calvin/utilities/certificate.py/touch--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.2/tests/regressiontests/admin_scripts/tests.py/ManageNoSettings.test_builtin_with_bad_environment