Как исправить ошибку учебника по tensorflow (mnist для начинающих)?

Я пытаюсь создать учебник по tensorflow mnist для начинающих в здесь.

Когда я выполняю обучающий сценарий, возникает следующая ошибка.
Как исправить эту ошибку?

похоже, что не удается получить данные изображения mnist.

Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/tensorflow/python/__init__.py", line 49, in <module>
    from tensorflow.python import pywrap_tensorflow
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/tensorflow/python/pywrap_tensorflow.py", line 28, in <module>
    _pywrap_tensorflow = swig_import_helper()
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/tensorflow/python/pywrap_tensorflow.py", line 24, in swig_import_helper
    _mod = imp.load_module('_pywrap_tensorflow', fp, pathname, description)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/imp.py", line 242, in load_module
    return load_dynamic(name, filename, file)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/imp.py", line 342, in load_dynamic
    return _load(spec)
ImportError: dlopen(/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/tensorflow/python/_pywrap_tensorflow.so, 10): Library not loaded: @rpath/libcudart.8.0.dylib
  Referenced from: /Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/tensorflow/python/_pywrap_tensorflow.so
  Reason: image not found

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "mnist2.py", line 35, in <module>
    import tensorflow as tf
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/tensorflow/__init__.py", line 24, in <module>
    from tensorflow.python import *
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/tensorflow/python/__init__.py", line 60, in <module>
    raise ImportError(msg)
ImportError: Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/tensorflow/python/__init__.py", line 49, in <module>
    from tensorflow.python import pywrap_tensorflow
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/tensorflow/python/pywrap_tensorflow.py", line 28, in <module>
    _pywrap_tensorflow = swig_import_helper()
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/tensorflow/python/pywrap_tensorflow.py", line 24, in swig_import_helper
    _mod = imp.load_module('_pywrap_tensorflow', fp, pathname, description)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/imp.py", line 242, in load_module
    return load_dynamic(name, filename, file)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/imp.py", line 342, in load_dynamic
    return _load(spec)
ImportError: dlopen(/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/tensorflow/python/_pywrap_tensorflow.so, 10): Library not loaded: @rpath/libcudart.8.0.dylib
  Referenced from: /Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/tensorflow/python/_pywrap_tensorflow.so
  Reason: image not found


Error importing tensorflow.  Unless you are using bazel,
you should not try to import tensorflow from its source directory;
please exit the tensorflow source tree, and relaunch your python interpreter
from there.