Updates to license, dependencies, CI, and pyproject.toml.

Author: PMeira

LICENSE LICENSE.BSD3LICENSE renamed to LICENSE.BSD3

@@ -1,7 +1,7 @@
 BSD 3-Clause License
 
-Copyright (c) 2017-2023, Paulo Meira
-Copyright (c) 2017-2023, DSS Python contributors
+Copyright (c) 2017-2026, Paulo Meira
+Copyright (c) 2017-2026, Contributors to DSS-Extensions
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without

OPENDSS_LICENSE

@@ -1,4 +1,4 @@
-* Copyright (c) 2008-2021, Electric Power Research Institute, Inc.
+* Copyright (c) 2008-2026, Electric Power Research Institute, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without

README.md

@@ -6,12 +6,18 @@
 
 `dss_python_backend` provides low-level bindings for an implementation of EPRI's OpenDSS, using [CFFI](https://cffi.readthedocs.io/) and our [DSS C-API library and headers](https://github.com/dss-extensions/dss_capi/). It contains the native libraries (and DLLs) required by DSS-Python. This is considered an implementation detail.
 
-**This is not intended for direct usage, [see DSS-Python](https://github.com/dss-extensions/dss_python/) and [OpenDSSDirect.py](https://github.com/dss-extensions/OpenDSSDirect.py/) instead!**
+**This is not intended for direct usage, [see DSS-Python](https://github.com/dss-extensions/DSS-Python/), [OpenDSSDirect.py](https://github.com/dss-extensions/OpenDSSDirect.py/), and [AltDSS-Python](https://github.com/dss-extensions/AltDSS-Python/) instead!**
 
 After several years integrated into DSS-Python, this package was created in April 2023 to make the maintenance easier. See https://github.com/dss-extensions/dss_python/issues/51
 
-This package includes:
-- CFFI modules for DSS C-API
+The Python package includes:
+- FastDSS modules for AltDSS/DSS C-API
+- CFFI modules for AltDSS/DSS C-API
 - CFFI modules for user-models (only the code for generator user-models is being compiled nowadays)
-- DSS C-API libraries, DLLs, and headers
+- AltDSS/DSS C-API related libraries (AltDSS Engine, Oddie, Loader, etc.), DLLs, and headers
 
+This module contains source-code licensed under BSD3 and LGPL3. See each file for SPDX comments.
+
+Although this repository does not contain code from OpenDSS, the license is listed in `OPENDSS_LICENSE` for reference. The final packages do include software derived from OpenDSS code and other libraries, such as KLUSolveX and KLU (from SuiteSparse), both licensed under the LGPL. Since the files listed in this repository contain multiple licenses, SPDX identifiers are now included in the file headers.
+
+*Note: this package might be renamed in the future to reflect the new developments.*

ci/build_wheel.sh

@@ -1,5 +1,4 @@
 mkdir -p artifacts
 cd dss_python_backend
-$PYTHON -m pip install --upgrade pip setuptools
-$PYTHON -m pip install cffi wheel
+$PYTHON -m pip install --upgrade pip setuptools packaging trove-classifiers cffi wheel
 $PYTHON setup.py --quiet bdist_wheel --py-limited-api cp37 --dist-dir=$ARTIFACTS_FOLDER

dss_python_backend/_func_info.py

@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: (C) 2024-2025 Paulo Meira & contributors to DSS-Extensions
+# SPDX-License-Identifier: LGPL-3.0-only
 
 from enum import Enum
 

dss_python_backend/enums.py

@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: (C) 2023-2025 Paulo Meira & contributors to DSS-Extensions
+# SPDX-License-Identifier: BSD-3
+
 try:
     from enum import IntEnum, IntFlag
 except (ModuleNotFoundError, ImportError):

pyproject.toml

@@ -1,3 +1,42 @@
+[project]
+name = "dss_python_backend"
+dynamic = ["version"]
+readme = {file = "README.md", content-type = "text/markdown"}
+description = "Low-level Python bindings and native libs for DSS-Python, OpenDSSDirect.py and AltDSS-Python. Not intended for direct usage, see the high-level packages instead."
+license = "BSD-3-Clause AND LGPL-3.0-only"
+license-files = ["LICENSE.BSD3", "LICENSE.LGPL3", "OPENDSS_LICENSE"]
+authors = [
+    {name = "Paulo Meira", email = "pmeira@ieee.org"},
+]
+maintainers = [
+    {name = "Paulo Meira", email = "pmeira@ieee.org"},
+]
+dependencies = [
+    "cffi>=2,<3",
+    "numpy>=2,<3",
+]
+requires-python = ">=3.11" # Following NumPy's requirements
+
+classifiers=[
+    "Intended Audience :: Science/Research",
+    "Intended Audience :: Education",
+
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
+    "Programming Language :: Python :: Implementation :: CPython",
+
+    "Development Status :: 5 - Production/Stable",
+
+    "Topic :: Scientific/Engineering",
+]
+
+[project.urls]
+Homepage = "https://github.com/dss-extensions/dss_python_backend"
+Repository = "https://github.com/dss-extensions/dss_python_backend.git"
+"Bug Tracker" = "https://github.com/dss-extensions/dss-extensions/issues"
+
 [build-system]
 requires = ["setuptools"]
 build-backend = "setuptools.build_meta"

setup.py

@@ -88,16 +88,9 @@
 
 
 setup(
-    name="dss_python_backend",
-    description="Low-level Python bindings and native libs for DSS-Python. Not intended for direct usage, see DSS-Python instead.",
-    long_description=long_description,
-    long_description_content_type='text/markdown',
-    author="Paulo Meira",
-    author_email="pmeira@ieee.org",
     version=package_version,
-    license="BSD",
     packages=['dss_python_backend'],
-    setup_requires=["cffi>=1.11.2"],
+    setup_requires=["cffi>=2.0.0"],
     cffi_modules= [
         "dss_build.py:ffi_builder_dss",
         'dss_build.py:ffi_builder_GenUserModel_altdss', 
@@ -111,25 +104,8 @@
     ],
     ext_modules=[dss_build.fastdss_extension],
     ext_package="dss_python_backend",
-    install_requires=["cffi>=1.11.2"],
     # tests_require=["pytest"],
     zip_safe=False,
-    classifiers=[
-        'Intended Audience :: Science/Research',
-        'Intended Audience :: Education',
-
-        'Programming Language :: Python :: 3.7',
-        'Programming Language :: Python :: 3.8',
-        'Programming Language :: Python :: 3.9',
-        'Programming Language :: Python :: 3.10',
-        'Programming Language :: Python :: 3.11',
-        'Programming Language :: Python :: 3.12',
-        'Programming Language :: Python :: Implementation :: CPython',
-        'Programming Language :: Python :: Implementation :: PyPy',
-        'Development Status :: 5 - Production/Stable',
-        'Topic :: Scientific/Engineering',
-        'License :: OSI Approved :: BSD License'
-    ],
     **extra_args
 )
 

src/_fastdss.c

@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: (C) 2024-2025 Paulo Meira & contributors to DSS-Extensions
+// SPDX-License-Identifier: LGPL-3.0-only
+
 // This is a C extension that contains a few faster alternatives for a subset
 // of functions from AltDSS/DSS C-API. The rest of the functions are handled
 // via CFFI.

src/_fastdss_py_members.inc.c

@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: (C) 2024-2025 Paulo Meira & contributors to DSS-Extensions
+// SPDX-License-Identifier: LGPL-3.0-only
+
 static PyMemberDef AltDSS_PyContext_members[] = {
 {"ActiveClass_Get_ActiveClassName", Py_T_OBJECT_EX, offsetof(AltDSS_PyContextObject, f_ActiveClass_Get_ActiveClassName)},
 {"ActiveClass_Get_ActiveClassParent", Py_T_OBJECT_EX, offsetof(AltDSS_PyContextObject, f_ActiveClass_Get_ActiveClassParent)},