setup.py：先运行build_ext [英] setup.py: run build_ext before anything else

问题描述

我正在使用setup.py，该文件在build_ext步骤期间创建了一堆SWIG接口文件。这需要首先运行，因为后续的构建步骤需要完整的python文件列表才能正常工作（例如，将python文件复制到package目录，创建egg，创建源列表等）。

I'm working with a setup.py that creates a whole bunch of SWIG interface files during the build_ext step. This needs to run first, because subsequent build steps need a full list of the python files to work properly (like copying the python files to the package directory, creating the egg, creating the sources list, etc.).

这是当您执行 setup.py install 时当前发生的情况：

This is what currently happens when you do setup.py install:

running install
running bdist_egg
running egg_info
running install_lib
running build_py
running build_ext

build_py 步骤尝试复制所有的python文件它找到构建目录。这些文件在 build_ext 运行之前不存在（swig创建了一堆.py文件）。

The build_py step tries to copy all the python files that it finds to the build directory. Those files don't exist until build_ext runs (swig creates a bunch of .py files).

此答案建议更改 sub_commands ，但这似乎无济于事。

This answer recommends changing sub_commands but that didn't appear to do anything.

我只是尝试将 install 命令类子类化，以运行 build_ext 之前的其他事情：

I tried just subclassing the install command class like this to run build_ext before anything else:

class Build_ext_first(setuptools.command.install.install):
    def run(self):
        self.run_command("build_ext")
        super(Build_ext_first, self).run()

..然后使用 cmdclass 进行设置：

..and then working it in to setup with cmdclass:

setup(
    ...
    cmdclass = {'install' : Build_ext_first}
)

但这没用，因为 super 不适用于老式类和 install 显然不是从 object 继承的。

But that didn't work because super doesn't work with old-style classes and install apparently doesn't inherit from object.

我应该如何首先？

How do I do build_ext first?

推荐答案

看来，做super（）的旧方法是向前兼容的，所以我只是这样做：

It appears the old way of doing super() is forwards-compatible so I just did that:

class Build_ext_first(setuptools.command.install.install):
    def run(self):
        self.run_command("build_ext")
        return setuptools.command.install.install.run(self)


setup(
    ...,
    cmdclass = {'install' : Build_ext_first}
)

这篇关于setup.py：先运行build_ext的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！