[tenserflow] Macにインストール編

今年は、ビジネス系の雑誌でも、エンジニア系のセミナーでも、会社内でも、社外でも、「AI」「機械学習」「ディープラーニング」という単語を見ない（聞かない）日がないぐらいの流行っぷりの人工知能だが、 Google製のOSS「tensorflow」をようやく使ってみようと、非常に重い腰を上げてみた。

関連サイト

ダウンロード

https://www.tensorflow.org/versions/r0.12/get_started/os_setup.html

インストール

https://www.tensorflow.org/versions/r0.12/get_started/os_setup.html#virtualenv-installation

hello world

http://senyoltw.hatenablog.jp/entry/2016/05/07/231041

下準備

$ python -V Python 2.7.9 $ sudo easy_install pip $ sudo pip install --upgrade virtualenv $ virtualenv --system-site-packages ./ drwxr-xr-x 7 user staff 238B 11 29 11:49 . drwxr-xr-x 25 user staff 850B 11 29 11:46 .. lrwxr-xr-x 1 user staff 78B 11 29 11:49 .Python -> /usr/local/Cellar/python/2.7.9/Frameworks/Python.framework/Versions/2.7/Python drwxr-xr-x 16 user staff 544B 11 29 11:49 bin drwxr-xr-x 3 user staff 102B 11 29 11:49 include drwxr-xr-x 3 user staff 102B 11 29 11:49 lib -rw-r--r-- 1 user staff 60B 11 29 11:49 pip-selfcheck.json

インストール

# アクティベート（TensorFlow環境） $ source bin/activate (tenserflow) $ pip install --upgrade https://storage.googleapis.com/tensorflow/mac/tensorflow-0.8.0-py2-none-any.whl 膨大なエラー発生 You are using pip version 6.0.8, however version 9.0.1 is available. You should consider upgrading via the 'pip install --upgrade pip' command. You are using pip version 6.0.8, however version 9.0.1 is available. You should consider upgrading via the 'pip install --upgrade pip' command. Collecting tensorflow==0.12.0rc0 from https://storage.googleapis.com/tensorflow/mac/cpu/tensorflow-0.12.0rc0-py2-none-any.whl Exception: Traceback (most recent call last): File "/usr/local/Cellar/python/2.7.9/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-6.0.8-py2.7.egg/pip/basecommand.py", line 232, in main status = self.run(options, args) File "/usr/local/Cellar/python/2.7.9/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-6.0.8-py2.7.egg/pip/commands/install.py", line 339, in run requirement_set.prepare_files(finder) File "/usr/local/Cellar/python/2.7.9/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-6.0.8-py2.7.egg/pip/req/req_set.py", line 355, in prepare_files do_download, session=self.session, File "/usr/local/Cellar/python/2.7.9/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-6.0.8-py2.7.egg/pip/download.py", line 782, in unpack_url session, File "/usr/local/Cellar/python/2.7.9/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-6.0.8-py2.7.egg/pip/download.py", line 667, in unpack_http_url from_path, content_type = _download_http_url(link, session, temp_dir) File "/usr/local/Cellar/python/2.7.9/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-6.0.8-py2.7.egg/pip/download.py", line 814, in _download_http_url stream=True, File "/usr/local/Cellar/python/2.7.9/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-6.0.8-py2.7.egg/pip/_vendor/requests/sessions.py", line 473, in get return self.request('GET', url, **kwargs) File "/usr/local/Cellar/python/2.7.9/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-6.0.8-py2.7.egg/pip/download.py", line 365, in request return super(PipSession, self).request(method, url, *args, **kwargs) File "/usr/local/Cellar/python/2.7.9/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-6.0.8-py2.7.egg/pip/_vendor/requests/sessions.py", line 461, in request resp = self.send(prep, **send_kwargs) File "/usr/local/Cellar/python/2.7.9/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-6.0.8-py2.7.egg/pip/_vendor/requests/sessions.py", line 573, in send r = adapter.send(request, **kwargs) File "/usr/local/Cellar/python/2.7.9/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-6.0.8-py2.7.egg/pip/_vendor/cachecontrol/adapter.py", line 43, in send resp = super(CacheControlAdapter, self).send(request, **kw) File "/usr/local/Cellar/python/2.7.9/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-6.0.8-py2.7.egg/pip/_vendor/requests/adapters.py", line 431, in send raise SSLError(e, request=request) SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:581) どうやらpipのバージョンが古いことが原因だったらしい $ pip -V pip 6.0.8 from /usr/local/Cellar/python/2.7.9/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-6.0.8-py2.7.egg (python 2.7) pipのアップグレード $ sudo easy_install --upgrade pip $ pip -V pip 9.0.1 from /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-9.0.1-py2.7.egg (python 2.7) インストール # Mac OS X, CPU only, Python 2.7: (tensorflow)$ pip install --upgrade https://storage.googleapis.com/tensorflow/mac/cpu/tensorflow-0.12.0rc0-py2-none-any.whl (tensorflow)$ pip install --upgrade $TF_BINARY_URL Collecting tensorflow==0.12.0rc0 from https://storage.googleapis.com/tensorflow/mac/cpu/tensorflow-0.12.0rc0-py2-none-any.whl Downloading https://storage.googleapis.com/tensorflow/mac/cpu/tensorflow-0.12.0rc0-py2-none-any.whl (38.5MB) 100% |████████████████████████████████| 38.5MB 18kB/s Collecting numpy>=1.11.0 (from tensorflow==0.12.0rc0) Downloading numpy-1.11.2-cp27-cp27m-macosx_10_6_intel.macosx_10_9_intel.macosx_10_9_x86_64.macosx_10_10_intel.macosx_10_10_x86_64.whl (3.9MB) 100% |████████████████████████████████| 3.9MB 183kB/s Collecting mock>=2.0.0 (from tensorflow==0.12.0rc0) Downloading mock-2.0.0-py2.py3-none-any.whl (56kB) 100% |████████████████████████████████| 61kB 2.5MB/s Requirement already up-to-date: six>=1.10.0 in /usr/local/lib/python2.7/site-packages/six-1.10.0-py2.7.egg (from tensorflow==0.12.0rc0) Collecting protobuf==3.1.0 (from tensorflow==0.12.0rc0) Downloading protobuf-3.1.0-py2.py3-none-any.whl (339kB) 100% |████████████████████████████████| 348kB 934kB/s Requirement already up-to-date: wheel in ./lib/python2.7/site-packages (from tensorflow==0.12.0rc0) Collecting funcsigs>=1; python_version < "3.3" (from mock>=2.0.0->tensorflow==0.12.0rc0) Downloading funcsigs-1.0.2-py2.py3-none-any.whl Collecting pbr>=0.11 (from mock>=2.0.0->tensorflow==0.12.0rc0) Downloading pbr-1.10.0-py2.py3-none-any.whl (96kB) 100% |████████████████████████████████| 102kB 2.4MB/s Collecting setuptools (from protobuf==3.1.0->tensorflow==0.12.0rc0) Using cached setuptools-29.0.1-py2.py3-none-any.whl Installing collected packages: numpy, funcsigs, pbr, mock, setuptools, protobuf, tensorflow Found existing installation: setuptools 12.0.5 Not uninstalling setuptools at /usr/local/lib/python2.7/site-packages/setuptools-12.0.5-py2.7.egg, outside environment /Users/yugeta/MAMP/tenserflow/bin/.. Successfully installed funcsigs-1.0.2 mock-2.0.0 numpy-1.11.2 pbr-1.10.0 protobuf-3.1.0 setuptools-29.0.1 tensorflow-0.12.0rc0 問題なくインストール完了 ちなみに、GPUバージョンは以下のコマンド # Mac OS X, GPU enabled, Python 2.7: (tensorflow)$ pip install --upgrade https://storage.googleapis.com/tensorflow/mac/gpu/tensorflow_gpu-0.12.0rc0-py2-none-any.whl アクティベート終了 $ deactivate

そしておもむろにHelloWorld!

$ vi hello.py -- import tensorflow as tf hello = tf.constant('Hello World !!') sess = tf.Session() print sess.run(hello) ファイルを保存して、実行 $ python hello.py Hello World !! 実行速度が微妙に遅く感じるのは気のせいか？ そもそも、スピードを競う製品ではないからかもしれないので、あまり突っ込むのはヨシコさん。

まだまだ人工知能の入り口に過ぎない・・・

この後の工程は、データをぶち込んで行く作業だ・・・ 実はそんな簡単ではなく、Pythonをゴリゴリに書いていかなくてはいけないようだ・・・ 別の言語でもいいんだが、Pythonが楽しそうなので、この道を選択！！ 乞うご期待！