Permission denied when installing fcn on Ubuntu

[wkentaro]

Traceback (most recent call last):
  File "/home/wkentaro/ros/indigo/src/jsk-ros-pkg/jsk_recognition/jsk_perception/node_scripts/fcn_object_segmentation.py", line 10, in <module>
    import fcn
  File "/usr/local/lib/python2.7/dist-packages/fcn/__init__.py", line 5, in <module>
    import fcn.setup
  File "/usr/local/lib/python2.7/dist-packages/fcn/setup.py", line 20, in <module>
    data_dir = _get_data_dir()
  File "/usr/local/lib/python2.7/dist-packages/fcn/setup.py", line 16, in _get_data_dir
    os.makedirs(data_dir)
  File "/usr/lib/python2.7/os.py", line 157, in makedirs
    mkdir(name, mode)
OSError: [Errno 13] Permission denied: '/usr/local/lib/python2.7/dist-packages/fcn/_data'