def _sample(compound_list, size, seed):
    return random.Random(seed).sample(compound_list, size)
Set the child node for a given key.  Useful for bottom-up, lazy 
dataset/ETHPy150Open aalto-speech/morfessor/morfessor/evaluation.py/_sample--crossover with--dataset/ETHPy150Open AnyMesh/anyMesh-Python/example/urwid/treetools.py/ParentNode.set_child_node