make bindings optional deps

Author: leofang

cuda_core/DESCRIPTION.rst

@@ -3,8 +3,9 @@ cuda-core: Pythonic access to CUDA core functionalities
 *******************************************************
 
 `cuda.core <https://nvidia.github.io/cuda-python/cuda-core/>`_ bridges Python's productivity
-with CUDA's performance through intuitive, pythonic APIs.
-The mission is to provide users full access to all of the CUDA features in Python.
+with CUDA's performance through intuitive and pythonic APIs.
+The mission is to provide users full access to all of the core CUDA features in Python,
+such as runtime control, compiler and linker.
 
 * `Repository <https://github.com/NVIDIA/cuda-python/tree/main/cuda_core>`_
 * `Documentation <https://nvidia.github.io/cuda-python/cuda-core/>`_

cuda_core/pyproject.toml

@@ -44,10 +44,13 @@ classifiers = [
 ]
 dependencies = [
     "numpy",
-    # TODO: change this once cuda-bindings is packaged, see NVIDIA/cuda-python#105
-    "cuda-python <13",
 ]
 
+[project.optional-dependencies]
+# TODO: change this once cuda-bindings is packaged, see NVIDIA/cuda-python#105
+cu11 = ["cuda-python==11.8.*"]
+cu12 = ["cuda-python==12.*"]
+
 [project.urls]
 homepage = "https://nvidia.github.io/cuda-python/"
 documentation = "https://nvidia.github.io/cuda-python/cuda-core/"
@@ -57,7 +60,6 @@ issues = "https://github.com/NVIDIA/cuda-python/issues/"
 [tool.setuptools.packages.find]
 include = ["cuda.core*"]
 
-
 [tool.setuptools.dynamic]
 version = { attr = "cuda.core._version.__version__" }
 readme = { file = ["DESCRIPTION.rst"], content-type = "text/x-rst" }