CMake是否支持Python3？ [英] Does CMake support Python3?

问题描述

我无法通过CMake和Swig for Python3为我的C库构建一个Python包装器模块。一切工作正常为Python2.x，但它看起来像CMake找不到Python3。我已经环顾四周，尝试了几件事情。

例如，我的 python 可执行文件链接到Python3，因为我读CMake会先找到这个版本。 p>

请参阅 CMakeLists.txt 的SWIG部分：

  FIND_PACKAGE（SWIG REQUIRED）
 INCLUDE（$ {SWIG_USE_FILE}）
 
 FIND_PACKAGE（PythonInterp 3）
 FIND_PACKAGE（PythonLibs 3） 
 
 FIND_PATH（PYTHON_INCLUDE_PATH Python.h 
 / usr / include 
 / usr / local / include）
 INCLUDE_DIRECTORIES（$ {PYTHON_INCLUDE_DIRS}）
 
 INCLUDE_DIRECTORIES（$ {CMAKE_CURRENT_SOURCE_DIR}）
 
 SET（CMAKE_SWIG_FLAGS）
 
 SET_SOURCE_FILES_PROPERTIES（kissCT3.i PROPERTIES CPLUSPLUS ON）
 #SET_SOURCE_FILES_PROPERTIES（kissCT3.i PROPERTIES SWIG_FLAGS-includeall -py3）
 
 SWIG_ADD_MODULE（kissCT3 python kissCT3.i）
 SWIG_LINK_LIBRARIES（kissCT3 libct2d matio kissfft $ {PYTHON_LIBRARIES}）
  
 
 <$ p> 
 $ p>   - 找到SWIG：/usr/bin/swig2.0（发现版本2.0.4）
  - 找到的PythonInterp：/usr/bin/python2.7是至少版本3）
  - 发现PythonLibs：/usr/lib/libpython2.7.so（必须至少是版本3）
  - 配置完成
  -  - 生成完成
  




解决方案

清洁？我有完全相同的问题，后清洗工作dir它工作。

I am not able to build a Python wrapper module for my C library via CMake and Swig for Python3. Everything works fine for Python2.x but it looks like CMake cannot find Python3. I already looked around and tried a couple of things.

For example, my python executable links to Python3, as I read CMake will find this version first.

Please see here the SWIG part of the CMakeLists.txt:

FIND_PACKAGE(SWIG REQUIRED)
INCLUDE(${SWIG_USE_FILE})

FIND_PACKAGE(PythonInterp 3)
FIND_PACKAGE(PythonLibs 3)

FIND_PATH(PYTHON_INCLUDE_PATH Python.h
  /usr/include
  /usr/local/include)
INCLUDE_DIRECTORIES(${PYTHON_INCLUDE_DIRS})

INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR})

SET(CMAKE_SWIG_FLAGS "")

SET_SOURCE_FILES_PROPERTIES(kissCT3.i PROPERTIES CPLUSPLUS ON)
#SET_SOURCE_FILES_PROPERTIES(kissCT3.i PROPERTIES SWIG_FLAGS "-includeall -py3")

SWIG_ADD_MODULE(kissCT3 python kissCT3.i)
SWIG_LINK_LIBRARIES(kissCT3 libct2d matio kissfft ${PYTHON_LIBRARIES})

Unfortunately, the output after calling cmake shows that only python2.7 is found:

-- Found SWIG: /usr/bin/swig2.0 (found version "2.0.4")
-- Found PythonInterp: /usr/bin/python2.7 (Required is at least version "3")
-- Found PythonLibs: /usr/lib/libpython2.7.so (Required is at least version "3")
-- Configuring done
-- Generating done

解决方案

Can you make sure your build directory is clean? I had the exact same issue and after cleaning the dir it worked.

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