ImportError: scipy.sparseという名前のモジュールはありません。

Traceback (most recent call last):
  File ". /faster_rcnn/train_net.py", line 23, in <module>
    from lib.fast_rcnn.train import get_training_roidb, train_net
  File ". /faster_rcnn/.. /lib/__init__.py", line 1, in <module>
    import fast_rcnn
  File ". /faster_rcnn/... /lib/fast_rcnn/__init__.py", line 9, in <module>
    from . import train
  File ". /faster_rcnn/.. /lib/fast_rcnn/train.py", line 18, in <module>
    from . .gt_data_layer import roidb as gdl_roidb
  File ". /faster_rcnn/... /lib/gt_data_layer/__init__.py", line 7, in <module>
    import roidb
  File ". /faster_rcnn/.. /lib/gt_data_layer/roidb.py", line 11, in <module>
    import scipy.sparse
ImportError: No module named scipy.sparse

解決策

最初に実行する

sudo yum install python-scipy

sudo pip install scipy