Python_undef

This is a Python script that generates a header file "Python_undef.h" which undefine many macros in "pyconfig.h" that doesn't match the rule that "should start with PY_".

Why

The "pyconfig.h" continue many macros that doesn't math the rule that "should start with PY_" which may cause the comflict with the other projects. This project undefines them.

Download

pip install python_undef

Usage

Generate

This command under will create the file "Python_undef.h"

python -m python_undef --generate

It defaults output the file "Python_undef.h" and "Python_keep.h" in the package directory. You can use the --output option to specify the output file:

python -m python_undef --generate --output <path>

Include

The command under will output the include path of "Python_undef.h" and "Python_keep.h":.

You can use this command in your C/C++ project such as "cmake", "gyp" and so on.

If hadn't run python -m python_undef --generate it will exit with code 1.

python -m python_undef --include

Using it in your code

You can include the "Python_undef.h" file in your project:

#include <Python_keep.h>
#include <Python.h>
#include <Python_undef.h>
#include <other_header.h>

The "pyconfig.h" continue many macros that doesn't math the rule that "should start with PY_". This file undefine them.

If you want to save the macro, use #define DONOTUNDEF_macro_name before include "Python_undef.h" to keep it.

Generate for your project config.h (Add in version 1.1.0)

You can use this python code to generate it:

import python_undef
if python_undef.generate_python_undef_header(
    "path_to_your_project_config.h",
    output_path="path/to/your/project/include",
    project_name="your_project",
    main_header_macro="YOUR_PROJECT_H",
    main_header_name="your_project.h",
    macro_need_header="YOUR_PROJECT",
    is_standard_macro_rule=your_function,
    inside_project=True # Add in version 1.2.0
):
    print("Generate your_project_undef.h and your_project_keep.h success")
else:
    print("Generate your_project_undef.h and your_project_keep.h failed")

License

MIT License