使用CM打包和安装python绑定

Question

我有一个C++项目，我使用SWIG生成了Python绑定。我现在正在尝试通过添加安装操作来完成项目的CMake文件。但是每当我完成安装并尝试调用我的函数时，我都会收到一个错误，声明foo has no attribute bar()。在

这与Python不知道绑定所依赖的.so文件在哪里有关。如果foo.py和{}都在同一个目录中，我可以完美地使用绑定。我正在努力弄清楚如何“安装”Python绑定和它们所依赖的.so，所有这些都是以可移植的方式进行的。在

显然，我可以将.so的安装路径导出到LD_LIBRARY_PATH，但这似乎是一个解决方案必须要解决的问题。在

我的CMakeLists.txt。我已经删去了与我的C++ LIb{{CD9}}：

编译有关的位。

# Project
##

# TODO this actually needs 3.3+
cmake_minimum_required(VERSION 2.6)
project(RTKLIB)

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

FIND_PACKAGE(PythonLibs 3 REQUIRED)
INCLUDE_DIRECTORIES(${PYTHON_INCLUDE_PATH})

find_program(PYTHON "python3" REQUIRED)
include(GNUInstallDirs)


# Variable declarations
##
# Define this directory 
set(RTKLIB_ROOT ${CMAKE_CURRENT_SOURCE_DIR})

# Define the build dir
set(RTKLIB_BIN_DIR "${RTKLIB_ROOT}/build")

list(append CMAKE_MODULE_PATH "${RTKLIB_ROOT}/cmake")

# Setup python vars
set(SETUP_PY_IN "${RTKLIB_ROOT}/setup.py.in")  # initial version of setup.py
set(SETUP_PY    "${RTKLIB_BIN_DIR}/setup.py")     # cmake generated setup.py
set(OUTPUT      "${RTKLIB_BIN_DIR}/python_timestamp") # Timestamp used as dep
set(RTKLIB_PY  "rtk_lib")  # name of the python lib


# Set the output dir for SWIG
set(CMAKE_SWIG_OUTDIR ${RTKLIB_BIN_DIR}/${RTKLIB_PY})


# Generate Python bindings
##
# SWIG Config
SET_PROPERTY(SOURCE include/rtk_lib.i PROPERTY CPLUSPLUS ON)
SWIG_ADD_MODULE(${RTKLIB_PY} python include/rtk_lib.i)           # Generate C-Python bindings
SWIG_LINK_LIBRARIES(${RTKLIB_PY} RTK ${PYTHON_LIBRARIES})    # Link the bindings with python

# Generate the setup.py file
configure_file(${SETUP_PY_IN} ${SETUP_PY}) 

# Build command that depends on the SWIG output files and updates the timestamp
add_custom_command(OUTPUT ${OUTPUT}
                COMMAND ${PYTHON} ${SETUP_PY} build
                COMMAND ${CMAKE_COMMAND} -E touch ${OUTPUT}
                DEPENDS ${RTKLIB_BIN_DIR}\${SWIG_MODULE_${RTKLIB_PY}_REAL_NAME})

# Custom target that depends on the timestamp file generated by the custom command
add_custom_target(ALL DEPENDS ${OUTPUT})

# Install the shared library
install(TARGETS ${SWIG_MODULE_${RTKLIB_PY}_REAL_NAME}
    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
    PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})

# Install to user's packages
install(CODE "execute_process(COMMAND ${PYTHON} ${SETUP_PY} install --user)")

这是我的setup.py.in如果有帮助的话：

^{pr2}$ <>代码快速摘要：它为C++生成包装类，它是Python兼容的，然后编译和链接包装类与Python LIBS和原始RTK C++库。之后，您有一个名为rtk_lib的目录，其中既有包装器类，也有rtk_lib.py模块。在这个rtk_lib目录之外是输出的_rtk_lib.so共享库，rtk_lib.py依赖于它。所以为了使绑定生效，我将_rtk_lib.so复制到rtk_lib目录中并调用python3。然后我可以导入lib，一切都很好。在

我尝试安装共享库，但即使这样我仍然得到相同的rtk_lib has no attribute blablabla()。在