Question

我的项目中有一个文件，出于性能考虑，我希望对其进行编译：

mylibrary / myfile.py

如何通过诗歌实现这一目标？

Answer 1

诗歌中有未记录的功能。将此添加到您的pyproject.toml：

[tool.poetry]
...
build = 'build.py'

[build-system]
requires = ["poetry>=0.12", "cython"]
build-backend = "poetry.masonry.api"

这是在隐式生成的setup.py中运行build.py:build()函数。这是我们建造的地方。

因此，创建一个提供build.py功能的build()：

import os

# See if Cython is installed
try:
    from Cython.Build import cythonize
# Do nothing if Cython is not available
except ImportError:
    # Got to provide this function. Otherwise, poetry will fail
    def build(setup_kwargs):
        pass
# Cython is installed. Compile
else:
    from setuptools import Extension
    from setuptools.dist import Distribution
    from distutils.command.build_ext import build_ext

    # This function will be executed in setup.py:
    def build(setup_kwargs):
        # The file you want to compile
        extensions = [
            "mylibrary/myfile.py"
        ]

        # gcc arguments hack: enable optimizations
        os.environ['CFLAGS'] = '-O3'

        # Build
        setup_kwargs.update({
            'ext_modules': cythonize(
                extensions,
                language_level=3,
                compiler_directives={'linetrace': True},
            ),
            'cmdclass': {'build_ext': build_ext}
        })

现在，当您执行poetry build时，什么都不会发生。但是，如果将此软件包安装在其他位置，则会对其进行编译。

您还可以使用以下方法手动构建它：

$ cythonize -X language_level=3 -a -i mylibrary/myfile.py

最后，似乎您无法将二进制包发布到PyPi。解决方案是将构建限制为“ sdist”：

$ poetry build -f sdist
$ poetry publish

如何将Cython与诗歌结合使用？

1 个答案: