Python导入错误：undefined symbol：_Z33parallel_pthreads_set_threads_numi

Question

我想在CentOS6上编译和安装OpenCV3（针对Python3.4）。 当我cmake时，我设置了以下选项。

BUILD_opencv_python3=ON 
BUILD_opencv_videoio=OFF(turned this off because I am not using the video modules and this throws some errors while compiling) 
PYTHON3_EXECUTABLE=/usr/local/python/bin/python3.4 
PYTHON3_INCLUDE_DIR=/usr/local/python/include/python3.4m 
PYTHON3_LIBRARY=/usr/local/python/lib/python3.4 
PYTHON3_NUMPY_INCLUDE_DIRS=/usr/local/python/lib/python3.4/site-packages/numpy/core/include 
PYTHON3_PACKAGES_PATH=/usr/local/python/lib/python3.4/site-packages 

使用上述配置，compliation云很好，但是当我尝试导入输出文件（cv2.cpython-34m.so），我收到以下错误。

Python 3.4.3 (default, Nov 2 2015, 17:44:31) 
[GCC 4.4.7 20120313 (Red Hat 4.4.7-16)] on linux 
Type "help", "copyright", "credits" or "license" for more information. 
>>> import cv2(←renamed from cv2.cpython-34m.so to this) 
Traceback (most recent call last): 
    File "<stdin>", line 1, in <module> 
ImportError: /home/dai/opencv-3.0.0/build/lib/libopencv_core.so.3.0: undefined symbol: _Z33parallel_pthreads_set_threads_numi 

我该如何解决这个问题？

Answer 1

一种可能性是您的文件cv2.cpython-34m.so可能会更改为cv2.cpython-34m.py以便导入。这只是一个建议。