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53 lines
2.0 KiB
53 lines
2.0 KiB
Build systems
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#############
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Building with setuptools
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========================
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For projects on PyPI, building with setuptools is the way to go. Sylvain Corlay
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has kindly provided an example project which shows how to set up everything,
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including automatic generation of documentation using Sphinx. Please refer to
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the [python_example]_ repository.
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.. [python_example] https://github.com/pybind/python_example
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Building with cppimport
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========================
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cppimport is a small Python import hook that determines whether there is a C++
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source file whose name matches the requested module. If there is, the file is
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compiled as a Python extension using pybind11 and placed in the same folder as
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the C++ source file. Python is then able to find the module and load it.
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.. [cppimport] https://github.com/tbenthompson/cppimport
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.. _cmake:
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Building with CMake
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===================
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For C++ codebases that have an existing CMake-based build system, a Python
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extension module can be created with just a few lines of code:
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.. code-block:: cmake
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cmake_minimum_required(VERSION 2.8.12)
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project(example)
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add_subdirectory(pybind11)
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pybind11_add_module(example example.cpp)
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This assumes that the pybind11 repository is located in a subdirectory named
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:file:`pybind11` and that the code is located in a file named :file:`example.cpp`.
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The CMake command ``add_subdirectory`` will import a function with the signature
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``pybind11_add_module(<name> source1 [source2 ...])``. It will take care of all
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the details needed to build a Python extension module on any platform.
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The target Python version can be selected by setting the ``PYBIND11_PYTHON_VERSION``
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variable before adding the pybind11 subdirectory. Alternatively, an exact Python
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installation can be specified by setting ``PYTHON_EXECUTABLE``.
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A working sample project, including a way to invoke CMake from :file:`setup.py` for
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PyPI integration, can be found in the [cmake_example]_ repository.
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.. [cmake_example] https://github.com/pybind/cmake_example
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