Python: Could NOT find PythonLibs (如何查找你的python路径))

查找python对应lib和inc

1. 背景

使用cmake编译文件的时候报错

CMake Error at /usr/local/share/cmake-3.14/Modules/FindPackageHandleStandardArgs.cmake:137 (message):
  Could NOT find PythonLibs (missing: PYTHON_LIBRARIES PYTHON_INCLUDE_DIRS)

2. 解决方法

如果是anaconda激活对应的环境,如果不是,直接在终端中输入python或者python3 (需要决定需要查找的python版本)

如果是python 2版本, 输入以下代码

root@c10fab84fca7:/usr/Downloads/felaim# python
Python 2.7.12 (default, Dec  4 2017, 14:50:18) 
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from distutils.sysconfig import get_python_inc
>>> print(get_python_inc())
/usr/include/python2.7
>>> import distutils.sysconfig as sysconfig
>>> print(sysconfig.get_config_var('LIBDIR'))
/usr/lib
>>> 

可以看到python的include文件在

/usr/include/python2.7

python的lib文件在

/usr/lib

python3的同理

最后在编译的时候添加上对应的参数设置

cmake -DPYTHON_INCLUDE_DIR=/usr/include/python2.7 -DPYTHON_LIBRARY=/usr/lib

或者直接这样写

$ cmake .. \
-DPYTHON_INCLUDE_DIR=$(python -c "from distutils.sysconfig import get_python_inc; print(get_python_inc())")  \
-DPYTHON_LIBRARY=$(python -c "import distutils.sysconfig as sysconfig; print(sysconfig.get_config_var('LIBDIR'))")

如果是anaconda要激活对应环境运行.

参考地址

1. https://stackoverflow.com/questions/24174394/cmake-is-not-able-to-find-python-libraries