## 前提・実現したいこと

Python3.7 では tensorflow が使用できない(?)エラーで詰まったため、 Python3.5
に変更したいと思い、以下のことを行うとエラーが表示されてしまいます。

エラーの原因がよくわからないため、考えられる原因を教えていただけないでしょうか？

  1. pyenv で Python3.5 のインストール
  2. `pyenv global 3.5.0`
  3. `pip3 install tensorflow`
  4. `python3`  
`import tensorflow`

* * *

## 発生している問題・エラーメッセージ

```

    Traceback (most recent call last):
      File "/Users/torulab/.pyenv/versions/3.5.0/lib/python3.5/site-packages/tensorflow/python/pywrap_tensorflow.py", line 58, in <module>
        from tensorflow.python.pywrap_tensorflow_internal import *
      File "/Users/torulab/.pyenv/versions/3.5.0/lib/python3.5/site-packages/tensorflow/python/pywrap_tensorflow_internal.py", line 28, in <module>
        _pywrap_tensorflow_internal = swig_import_helper()
      File "/Users/torulab/.pyenv/versions/3.5.0/lib/python3.5/site-packages/tensorflow/python/pywrap_tensorflow_internal.py", line 24, in swig_import_helper
        _mod = imp.load_module('_pywrap_tensorflow_internal', fp, pathname, description)
      File "/Users/torulab/.pyenv/versions/3.5.0/lib/python3.5/imp.py", line 242, in load_module
        return load_dynamic(name, filename, file)
      File "/Users/torulab/.pyenv/versions/3.5.0/lib/python3.5/imp.py", line 342, in load_dynamic
        return _load(spec)
    ImportError: dlopen(/Users/torulab/.pyenv/versions/3.5.0/lib/python3.5/site-packages/tensorflow/python/_pywrap_tensorflow_internal.so, 6): Symbol not found: _SecKeyCopyExternalRepresentation
      Referenced from: /Users/torulab/.pyenv/versions/3.5.0/lib/python3.5/site-packages/tensorflow/python/_pywrap_tensorflow_internal.so (which was built for Mac OS X 10.12)
      Expected in: /System/Library/Frameworks/Security.framework/Versions/A/Security
     in /Users/torulab/.pyenv/versions/3.5.0/lib/python3.5/site-packages/tensorflow/python/_pywrap_tensorflow_internal.so
    
    During handling of the above exception, another exception occurred:
    
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
      File "/Users/torulab/.pyenv/versions/3.5.0/lib/python3.5/site-packages/tensorflow/__init__.py", line 22, in <module>
        from tensorflow.python import pywrap_tensorflow  # pylint: disable=unused-import
      File "/Users/torulab/.pyenv/versions/3.5.0/lib/python3.5/site-packages/tensorflow/python/__init__.py", line 49, in <module>
        from tensorflow.python import pywrap_tensorflow
      File "/Users/torulab/.pyenv/versions/3.5.0/lib/python3.5/site-packages/tensorflow/python/pywrap_tensorflow.py", line 74, in <module>
        raise ImportError(msg)
    ImportError: Traceback (most recent call last):
      File "/Users/torulab/.pyenv/versions/3.5.0/lib/python3.5/site-packages/tensorflow/python/pywrap_tensorflow.py", line 58, in <module>
        from tensorflow.python.pywrap_tensorflow_internal import *
      File "/Users/torulab/.pyenv/versions/3.5.0/lib/python3.5/site-packages/tensorflow/python/pywrap_tensorflow_internal.py", line 28, in <module>
        _pywrap_tensorflow_internal = swig_import_helper()
      File "/Users/torulab/.pyenv/versions/3.5.0/lib/python3.5/site-packages/tensorflow/python/pywrap_tensorflow_internal.py", line 24, in swig_import_helper
        _mod = imp.load_module('_pywrap_tensorflow_internal', fp, pathname, description)
      File "/Users/torulab/.pyenv/versions/3.5.0/lib/python3.5/imp.py", line 242, in load_module
        return load_dynamic(name, filename, file)
      File "/Users/torulab/.pyenv/versions/3.5.0/lib/python3.5/imp.py", line 342, in load_dynamic
        return _load(spec)
    ImportError: dlopen(/Users/torulab/.pyenv/versions/3.5.0/lib/python3.5/site-packages/tensorflow/python/_pywrap_tensorflow_internal.so, 6): Symbol not found: _SecKeyCopyExternalRepresentation
      Referenced from: /Users/torulab/.pyenv/versions/3.5.0/lib/python3.5/site-packages/tensorflow/python/_pywrap_tensorflow_internal.so (which was built for Mac OS X 10.12)
      Expected in: /System/Library/Frameworks/Security.framework/Versions/A/Security
     in /Users/torulab/.pyenv/versions/3.5.0/lib/python3.5/site-packages/tensorflow/python/_pywrap_tensorflow_internal.so
    
    
    Failed to load the native TensorFlow runtime.
    
    See https://www.tensorflow.org/install/install_sources#common_installation_problems
    
    for some common reasons and solutions.  Include the entire stack trace
    above this error message when asking for help.
    
```

* * *

## 補足情報 (OS, ツールのバージョンなど)

現状のバージョンなどは以下の通りです。

  * PC:  
mac os

  * `$python3 --version`:  
Python 3.5.0

  * `$pip3 -V`:

```

    pip 18.0 from /Users/ユーザ名/.pyenv/versions/3.5.0/lib/python3.5/site-packages/pip-18.0-py3.5.egg/pip (python 3.5)
    
```

  * `$ pyenv versions`:

```

      system
    * 3.5.0 (set by /Users/ユーザ名/.pyenv/version)
      3.6.0
      3.6.2
    
```
CC BY-SA 4.0
2018-09-05T09:09:11.733
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2019-05-04T16:49:50.383
2019-05-04T16:49:50.383
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question
python tensorflow
import tensorflowでのエラー