ASN.1c Python Bndings Support Files

asn1cpython-support is a small Python helper package that provides build-time support utilities for Python packages using the modified asn1c compiler to generate C sources from ASN.1 specifications. Documentation is here: matrixeditor.github.io/asn1c-bindings.

Its primary purpose is to bridge Python packaging tools (such as scikit-build-core) with the asn1c-bindings CMake package, ensuring that ASN.1 source files can be compiled into Python extension modules seamlessly.

Usage in CMake

When building a Python extension module that uses ASN.1 specifications, you can retrieve the CMake package path like this:

execute_process(
    COMMAND "${Python_EXECUTABLE}" -m asn1cpython_support --cmake-dir
    OUTPUT_STRIP_TRAILING_WHITESPACE
    OUTPUT_VARIABLE asn1c-bindings_ROOT
)
find_package(asn1c-bindings CONFIG REQUIRED)

Installation

pip install asn1cpython-support

Example

A typical pyproject.toml snippet using this package with scikit-build-core:

[build-system]
# This requirement will make all required files available at build time
requires = ["scikit-build-core~=0.9.0", "asn1cpython-support"]
build-backend = "scikit_build_core.build"

[tool.scikit-build]
cmake.minimum-version = "3.15"
# ...

License

MIT License — see LICENSE for details.