ImportError cannot import name BytesIO when import caffe

转自：https://github.com/BVLC/caffe/issues/1549

I am trying to make caffe running on my machine equipped with Ubuntu 12.04LTS.

After finishing all the steps on the Installation page, I trained the LeNet model successfully and tried to use it as the tutorial from here. Then I got the following error:

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

I set the PYTHONPATH in .bashrc file before I did the above.

What is the problem? Could anyone give some hint? I am really confused.

Solution:

This issue was also posted as a question on Stack Overflow;

it looks like you set your PYTHONPATH to include

${HOME}/path/to/caffe/python/caffe$

rather than

${HOME}/path/to/caffe/python $

(note the lack of the last caffe part in that).