def link_or_copy(src, dst):
    shutil.copyfile(src, dst)
When the service is started without delegate, go to 'idle'.
dataset/ETHPy150Open VisTrails/VisTrails/vistrails/core/system/windows.py/link_or_copy--crossover with--dataset/ETHPy150Open dustin/twitty-twister/twittytwister/test/test_twitter.py/TwitterMonitorTest.test_startServiceNoDelegate