Python导入错误：未定义符号：_Z33parallel_pthreads_set_threads_numi答案

【问题标题】：Python Import error: undefined symbol: _Z33parallel_pthreads_set_threads_numiPython导入错误：未定义符号：_Z33parallel_pthreads_set_threads_numi
【发布时间】：2016-02-03 06:54:47
【问题描述】：

我正在尝试在 CentOS6 上编译和安装 OpenCV3（以 Python3.4 为目标）。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

通过上述配置，编译正常，但是当我尝试导入输出文件（cv2.cpython-34m.so）时，出现以下错误。

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？

【问题讨论】：

标签： opencv python-3.x image-processing python-3.4 opencv3.0

【解决方案1】：

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

【讨论】：