如何将我的 Python C 模块放入包中? [英] How to put my Python C-module inside package?
问题描述
我想在一个包下收集多个 Python 模块,因此它们不会从全局 Python 包和模块集中保留太多名称.但是我对用 C 编写的模块有问题.
I would like to gather multiple Python modules under one package, so they do not reserve too many names from global set of python packages and modules. But I have problems with modules that are written in C.
这是一个非常简单的示例,直接来自官方 Python 文档.您可以在页面底部从这里找到它:http://docs.python.org/distutils/examples.html
Here is a very simple example, straight from the official Python documentation. You can find it at the bottom of the page from here: http://docs.python.org/distutils/examples.html
from distutils.core import setup
from distutils.extension import Extension
setup(name='foobar',
version='1.0',
ext_modules=[Extension('foopkg.foo', ['foo.c'])],
)
我的 foo.c 文件是这样的
My foo.c file looks like this
#include <Python.h>
static PyObject *
foo_bar(PyObject *self, PyObject *args);
static PyMethodDef FooMethods[] = {
{
"bar",
foo_bar,
METH_VARARGS,
""
},
{NULL, NULL, 0, NULL}
};
static PyObject *
foo_bar(PyObject *self, PyObject *args)
{
return Py_BuildValue("s", "foobar");
}
PyMODINIT_FUNC
initfoo(void)
{
(void)Py_InitModule("foo", FooMethods);
}
int
main(int argc, char *argv[])
{
// Pass argv[0] to the Python interpreter
Py_SetProgramName(argv[0]);
// Initialize the Python interpreter. Required.
Py_Initialize();
// Add a static module
initfoo();
return 0;
}
它可以正常构建和安装,但我无法导入 foopkg.foo!如果我将它重命名为foo",它就可以完美运行.
It builds and installs fine, but I cannot import foopkg.foo! If I rename it to just "foo" it works perfectly.
有什么想法可以让foopkg.foo"工作吗?例如,将 C 代码中的foo"从 Py_InitModule() 更改为foopkg.foo"没有帮助.
Any ideas how I can make the "foopkg.foo" work? For example changing "foo" from Py_InitModule() in C code to "foopkg.foo" does not help.
推荐答案
foopkg
文件夹下必须有__init__.py
文件,否则Python无法识别为一个包裹.
There must be an __init__.py
file in the foopkg
folder, otherwise Python does not recognize as a package.
在setup.py
所在的位置创建一个foopkg
文件夹,并在其中放置一个空文件__init__.py
,并添加一个包
行到setup.py
:
Create a foopkg
folder where setup.py
is, and put an empty file __init__.py
there, and add a packages
line to setup.py
:
from distutils.core import setup
from distutils.extension import Extension
setup(name='foobar',
version='1.0',
packages=['foopkg'],
ext_modules=[Extension('foopkg.foo', ['foo.c'])],
)
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