我正在尝试制作 caffe在我的机器上运行 Ubuntu 12.04LTS。 完成 Installation page 上的所有步骤后, 我成功地训练了 LeNet 模型并尝试将其用作 here 的教程.然后我得到以下错误:

Traceback (most recent call last): 
    File "<string>", line 1, in <module>
ImportError: No module named caffe
Error in sys.excepthook:
Traceback (most recent call last):
    File "/usr/lib/python2.7/dist-packages/apport_python_hook.py", line 66, in apport_excepthook
      from apport.fileutils import likely_packaged, get_recent_crashes
    File "/usr/lib/python2.7/dist-packages/apport/__init__.py", line 1, in <module>
      from apport.report import Report
    File "/usr/lib/python2.7/dist-packages/apport/report.py", line 18, in <module>
      import problem_report
    File "/usr/lib/python2.7/dist-packages/problem_report.py", line 14, in <module>
      import zlib, base64, time, sys, gzip, struct, os
    File "/usr/lib/python2.7/gzip.py", line 10, in <module>
      import io
    File "${HOME}/path/to/caffe/python/caffe/io.py", line 2, in <module>
      import skimage.io
    File "/usr/local/lib/python2.7/dist-packages/skimage/io/__init__.py", line 11, in <module>
      from ._io import *
    File "/usr/local/lib/python2.7/dist-packages/skimage/io/_io.py", line 1, in <module>
      from io import BytesIO
ImportError: cannot import name BytesIO

Original exception was:
Traceback (most recent call last): 
    File "<string>", line 1, in <module>
ImportError: No module named caffe

在执行上述操作之前，我在 .bashrc 文件中设置了 PYTHONPATH。 问题是什么？谁能给点提示？我真的很困惑。 运行命令 python -c 'import io;在目录中打印 io.__file__':

Traceback (most recent call last): 
    File "${HOME}/path/to/caffe/python/caffe/io.py", line 2, in <module>
      import skimage.io
    File "/usr/local/lib/python2.7/dist-packages/skimage/io/__init__.py", line 11, in <module>
      from ._io import *
    File "/usr/local/lib/python2.7/dist-packages/skimage/io/_io.py", line 1, in <module>
      from io import BytesIO
ImportError: cannot import name BytesIO
Error in sys.excepthook:
Traceback (most recent call last):
    File "/usr/lib/python2.7/dist-packages/apport_python_hook.py", line 66, in apport_excepthook
      from apport.fileutils import likely_packaged, get_recent_crashes
    File "/usr/lib/python2.7/dist-packages/apport/__init__.py", line 1, in <module>
      from apport.report import Report
    File "/usr/lib/python2.7/dist-packages/apport/report.py", line 18, in <module>
      import problem_report
    File "/usr/lib/python2.7/dist-packages/problem_report.py", line 14, in <module>
      import zlib, base64, time, sys, gzip, struct, os
    File "/usr/lib/python2.7/gzip.py", line 10, in <module>
      import io
    File "${HOME}/path/to/caffe/python/caffe/io.py", line 2, in <module>
      import skimage.io
    File "/usr/local/lib/python2.7/dist-packages/skimage/io/__init__.py", line 11, in <module>
      from ._io import *
    File "/usr/local/lib/python2.7/dist-packages/skimage/io/_io.py", line 1, in <module>
      from io import BytesIO
ImportError: cannot import name BytesIO

Original exception was:
Traceback (most recent call last): 
    File "${HOME}/path/to/caffe/python/caffe/io.py", line 2, in <module>
      import skimage.io
    File "/usr/local/lib/python2.7/dist-packages/skimage/io/__init__.py", line 11, in <module>
      from ._io import *
    File "/usr/local/lib/python2.7/dist-packages/skimage/io/_io.py", line 1, in <module>
      from io import BytesIO
ImportError: cannot import name BytesIO

那么，问题就变成了:如何解决名称问题？ P.S.:我还在 the repository of caffe 插入了一个问题.

最佳答案

您的 Python 路径中似乎有一个名为 io 的包或模块屏蔽了标准库包。它被导入，但没有要导入的 BytesIO 对象。

尝试运行:

python -c 'import io; print io.__file__'

在您运行教程的同一位置并重命名或移动由该导入命名的文件，假设它不是标准库版本(以 lib/python2.7/io.pyc 结尾) ).

可能是您将 Python 路径设置到了错误的目录。你应该包括 path/to/caffe/python，而不是 path/to/caffe/python/caffe，你也不应该尝试用后者运行 python 作为你当前的工作目录。在这两种情况下 caffe/python/caffe/io.py而不是标准库版本。

这里的安装说明没有错；他们清楚地告诉你使用:

export PYTHONPATH=/path/to/caffe/python:$PYTHONPATH

请注意该路径末尾缺少 /caffe。

关于python - 在ubuntu上导入caffe时ImportError cannot import name BytesIO，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/27396664/