Tensorflow 从源安装 ImportError

Question

我正在尝试使用

直接从源安装 tensorflow

git clone https://github.com/tensorflow/tensorflow 并按照提供的教程构建轮子。这是我使用的命令的完整列表（已安装 bazel）：

git clone https://github.com/tensorflow/tensorflow

sudo pip3 install dev
sudo pip3 install numpy
sudo pip3 install wheel

./configure (at tensorflow source directory)

bazel build -c opt //tensorflow/tools/pip_package:build_pip_package

bazel-bin/tensorflow/tools/pip_package/build_pip_package /tmp/tensorflow_pkg

sudo pip3 install /tmp/tensorflow_pkg/tensorflow-0.12.0rc0-cp35-none-any.whl

到目前为止，一切正常，wheel 文件似乎已作为模块成功安装。但是，当我尝试在 python3 会话中导入 tensorflow 时，收到此错误：

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): Symbol not found: _PyCObject_Type

Referenced from: /Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/tensorflow/python/_pywrap_tensorflow.so

Expected in: flat namespace

in /Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/tensorflow/python/_pywrap_tensorflow.so

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

File "<stdin>", line 1, in <module>

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): Symbol not found: _PyCObject_Type

Referenced from: /Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/tensorflow/python/_pywrap_tensorflow.so

Expected in: flat namespace

in /Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/tensorflow/python/_pywrap_tensorflow.so


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.

如有任何建议，谢谢！

Answer 1

缺少符号 _PyCObject_Type 表明 TensorFlow 的 C++ Python 扩展是针对与构建 PIP 包的版本不同的 Python 版本编译的。当您在 bazel build 之前 运行 ./configure 时，请务必回答以下提示：

Please specify the location of python. [Default is /usr/bin/python]: 

...使用 python 3.5 可执行文件的正确路径。