Create a python package with setup.py in CMake

Question

EDIT: The question is too long. Here is my real question: how to create and install a python package with setuptools (setup.py) inside CMake? The detail of my code is shown below (but using the source build method, the source method works).

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I have a project where I need to distribute my own python package. I created a setup.py script, but I would like to create and install it using CMake.

I used Using CMake with setup.py , but it only works with one CMakeLists.txt along with setup.py and the python folder and without executing cmake from the build directory.

With this arrangement:

Project/ --build/ --lib/ ----python/ ------folder1/ ------folder2/ ------data/ ------... ------__init__.py ----setup.py ----CMakeLists.txt --CMakeLists.txt 

and with CMakeLists.txt:

 cmake_minimum_required(VERSION 2.8.8 FATAL_ERROR) add_subdirectory(lib) (..) 

and with lib / CMakeLists.txt:

 find_program(PYTHON "python") if (PYTHON) set(SETUP_PY_IN "${CMAKE_CURRENT_SOURCE_DIR}/setup.py") set(SETUP_PY "${CMAKE_CURRENT_BINARY_DIR}/setup.py") set(DEPS "${CMAKE_CURRENT_SOURCE_DIR}/python/__init__.py") set(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/build") configure_file(${SETUP_PY_IN} ${SETUP_PY}) add_custom_command(OUTPUT ${OUTPUT} COMMAND ${PYTHON} ARGS setup.py build DEPENDS ${DEPS}) add_custom_target(target ALL DEPENDS ${OUTPUT}) install(CODE "execute_process(COMMAND ${PYTHON} ${SETUP_PY} install)") endif() 

and using setup.py

 from setuptools import setup, find_packages setup(name="python", version="xx", author="xx", packages = find_packages(), package_data = {'': ['*.txt']}, description="Python lib for xx") 

When I run CMake from the build directory and then do, the target is created, but nothing. As if no packages were found. Installation installs a python package without .py files ...

thanks

Answer 1

setuptools is not aware of the original build and therefore does not find any python source files (because you are not copying them to the binary directory, it seems that only the setup.py file exists). To fix this, you need to copy the python source tree to CMAKE_CURRENT_BINARY_DIR .

Answer 2

https://bloerg.net/2012/11/10/cmake-and-distutils.html suggests setting package_dir to ${CMAKE_CURRENT_SOURCE_DIR} in setup.py .