Cython setuptools integration
Easier distribution and development of Cython modules.
- Two distribution models: with C/C++ files included in the package, and without
- Cython modules are defined in
- Install directly from Cython sources, without installing Cython in the target
environment (Cython is only included in
$ pip install cython-setuptools
Here is an example Python package using the default distribution model (only Cython files are included in the source package).
First install the
cython-setuptools vendor module in the package, next to
$ cd your-python-project/ $ cython-setuptools install
setup() in your
from cysetuptools import setup setup()
Note that we keep the default
cythonize=True argument of
meaning that C files are compiled from Cython files automatically.
setup(cythonize=False) would mean we would need to distribute the C/C++ files
compiled from Cython in the source package.
Define your Cython modules in
[metadata] name = your-python-project version = 1.0 [options] packages = find: install_requires = cython [options.extras_require] dev = cython [cython-defaults] include_dirs = include/ [cython-module: foo.bar] sources = foo.pyx bar.cpp include_dirs = eval(__import__('numpy').get_include()) language = c++ pkg_config_packages = opencv
Then your Cython modules can be compiled and tested in-place with:
$ python setup.py build_ext --inplace
This automatically compile outdated Cython files. If
is used, you have to specifically tell the setup to recompile outdated Cython
$ CYTHONIZE=1 python setup.py build_ext --inplace
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