Add REUSE-compliant copyright and license headers

.github/workflows/build-test-docs.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 name: Build-test docs
 
 on:

.github/workflows/ci.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 name: CI
 
 on:

.github/workflows/publish-to-pypi.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 # Based on https://github.com/actions/starter-workflows/blob/main/ci/python-publish.yml
 name: Publish to Pypi
 

.github/workflows/reuse.yml

@@ -0,0 +1,31 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
+name: Reuse
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  Reuse:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+
+      - name: Install reuse
+        run: |
+          python3 -m pip install --upgrade pip
+          pip3 install reuse==6.3.0
+
+      - name: Check the REUSE compliance
+        run: reuse lint

.gitignore

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 # aas core meta model data
 
 dev_scripts/code_gen/meta_model.py

AUTHORS

@@ -0,0 +1,3 @@
+Marko Ristin (marko@ristin.ch, marko.ristin@gmail.com, rist@zhaw.ch) for Zurich University of Applied Sciences (ZHAW)
+Tobias Langer (tobias.langer@conplement.de) for conplement AG
+Aaron Zielstorff (aaron.zielstorff@iese.fraunhofer.de) for Fraunhofer Institute for Experimental Software Engineering (IESE)

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2026 aas-core-works
+Copyright (c) 2026 aas-core3.2-python AUTHORS
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

LICENSES/MIT.txt

@@ -0,0 +1,18 @@
+MIT License
+
+Copyright (c) <year> <copyright holders>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
+associated documentation files (the "Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the
+following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial
+portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
+LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO
+EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+USE OR OTHER DEALINGS IN THE SOFTWARE.

REUSE.toml

@@ -0,0 +1,53 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
+version = 1
+
+# Prose and metadata where a header would end up in the rendered output
+# (e.g., README shown on PyPI, the documentation) or which can not carry
+# a comment.
+[[annotations]]
+path = [
+    "AUTHORS",
+    "README.rst",
+    "docs/**/*.rst",
+    "docs/**/*.md",
+    "aas_core3_2/py.typed",
+    "dev/dev_scripts/.python-version",
+]
+precedence = "aggregate"
+SPDX-FileCopyrightText = "2026 aas-core3.2-python AUTHORS"
+SPDX-License-Identifier = "MIT"
+
+# The snippets are inserted verbatim into the generated code by aas-core-codegen,
+# so they must not carry a header of their own.
+[[annotations]]
+path = "dev/dev_scripts/codegen/snippets/**"
+precedence = "aggregate"
+SPDX-FileCopyrightText = "2026 aas-core3.2-python AUTHORS"
+SPDX-License-Identifier = "MIT"
+
+# Test data and the recorded test outputs are generated and compared
+# byte-by-byte, and JSON can not carry a comment.
+[[annotations]]
+path = "dev/test_data/**"
+precedence = "aggregate"
+SPDX-FileCopyrightText = "2026 aas-core3.2-python AUTHORS"
+SPDX-License-Identifier = "MIT"
+
+# The meta-model and the code generated from it transcribe the AAS
+# specification: the docstrings and the doc comments derived from them quote
+# the definitions of the classes, attributes and constraints. That text keeps
+# the license of the specification, next to the MIT license of our own code.
+# The specifications published by IDTA are licensed under CC BY 4.0.
+[[annotations]]
+path = [
+    "aas_core3_2/constants.py",
+    "aas_core3_2/types.py",
+    "aas_core3_2/verification.py",
+    "dev/dev_scripts/codegen/meta_model.py",
+]
+precedence = "aggregate"
+SPDX-FileCopyrightText = "Industrial Digital Twin Association e. V."
+SPDX-License-Identifier = "CC-BY-4.0"

aas_core3_2/__init__.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 """Manipulate, verify and de/serialize Asset Administration Shells v3.2."""
 
 # Synchronize with pyproject.toml and changelog.rst!

aas_core3_2/common.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 """Provide common functions shared among the modules."""
 
 # This code has been automatically generated by aas-core-codegen.

aas_core3_2/constants.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 """Provide constant values of the meta-model."""
 
 # This code has been automatically generated by aas-core-codegen.

aas_core3_2/jsonization.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 """
 Provide de/serialization of meta-model classes to/from JSON.
 

aas_core3_2/jsonvalueverification.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 """
 Verify that a value is JSON-able.
 

aas_core3_2/reporting.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 """
 Report where in the data an error lies.
 

aas_core3_2/stringification.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 """De-serialize enumerations from string representations."""
 
 # This code has been automatically generated by aas-core-codegen.

aas_core3_2/types.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 """
 --- WORK IN PROGRESS ---
 Provide an implementation of the Asset Administration Shell (AAS) V3.2.

aas_core3_2/verification.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 """
 Verify that the instances of the meta-model satisfy the invariants.
 

aas_core3_2/xmlcommon.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 """
 Provide the primitives which the modules reading and writing XML share.
 

aas_core3_2/xmlization.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 """
 Read and write model instances as XML.
 

aas_core3_2/xmlrpc.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 """
 Read and write the JSON-able values as a subset of XML-RPC.
 

dev/continuous_integration/__init__.py

@@ -1 +1,5 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 """Provide scripts for the continuous integration."""

dev/continuous_integration/check_init_and_pyproject_toml_consistent.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 """Check that meta-data in ``pyproject.toml`` and ``__init__.py`` are consistent."""
 
 import importlib

dev/continuous_integration/common.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 """Provide the settings shared among the continuous integration scripts."""
 
 import os

dev/continuous_integration/mypy.ini

@@ -1 +1,5 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 [mypy]

dev/continuous_integration/precommit.py

@@ -1,5 +1,9 @@
 #!/usr/bin/env python3
 
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 """Run pre-commit checks on the repository."""
 
 import argparse
@@ -23,6 +27,7 @@ class Step(enum.Enum):
     TEST = "test"
     DOCTEST = "doctest"
     CHECK_INIT_AND_PYPROJECT_TOML_CONSISTENT = "check-init-and-pyproject-consistent"
+    REUSE = "reuse"
 
 
 def call_and_report(
@@ -284,6 +289,23 @@ def main() -> int:
     else:
         print("Skipped checking that __init__.py and pyproject.toml are consistent.")
 
+    if Step.REUSE in selects and Step.REUSE not in skips:
+        # NOTE (aaronzi, 2026-11-08):
+        # reuse requires Python 3.10 or newer, so it is only installed there.
+        if sys.version_info < (3, 10):
+            print("Skipped checking the REUSE compliance (requires Python >= 3.10).")
+        else:
+            print("Checking the REUSE compliance...")
+            exit_code = call_and_report(
+                verb="check the REUSE compliance",
+                cmd=[sys.executable, "-m", "reuse", "lint"],
+                cwd=repo_root,
+            )
+            if exit_code != 0:
+                return 1
+    else:
+        print("Skipped checking the REUSE compliance.")
+
     return 0
 
 

dev/continuous_integration/ruff.toml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 target-version = "py39"
 
 [lint]

dev/dev_scripts/__init__.py

@@ -1 +1,5 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 """Provide scripts for the development of the SDK."""

dev/dev_scripts/codegen/meta_model.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2024 aas-core-meta AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 # Downloaded from: https://raw.githubusercontent.com/eclipse-aascw/aas-core-meta/543f3c05b88e61a4ec3ad90ec244055b5f9b65f0/aas_core_meta/v3_2.py
 """
 --- WORK IN PROGRESS ---

dev/dev_scripts/common.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 """Provide the settings shared among the development scripts."""
 
 import os

dev/dev_scripts/download_aas_core_meta_model.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 """Download the meta-model to this directory."""
 
 import argparse
@@ -13,6 +17,22 @@
 REPO: Final[str] = "aas-core-meta"
 REF: Final[str] = "main"
 
+# NOTE (aaronzi, 2026-11-08):
+# The meta-model is copied verbatim from aas-core-meta, so we attribute it to
+# its authors. We only prepend the header if the upstream file does not carry
+# a license header itself, so that the header is not duplicated.
+#
+# REUSE-IgnoreStart
+_META_MODEL_LICENSE_HEADER: Final[str] = """\
+# SPDX-FileCopyrightText: 2024 aas-core-meta AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
+"""
+
+_LICENSE_IDENTIFIER_TAG: Final[str] = "SPDX-License-Identifier:"
+# REUSE-IgnoreEnd
+
 
 def _latest_commit_sha_for_path(
     owner: str, repo: str, ref: str, path: str, *, timeout: float = 15.0
@@ -84,7 +104,14 @@ def main() -> int:
         / "meta_model.py"
     )
 
-    out_path.write_text(f"{banner}{content.rstrip()}\n\n{banner}", encoding="utf-8")
+    license_header = (
+        "" if _LICENSE_IDENTIFIER_TAG in content else _META_MODEL_LICENSE_HEADER
+    )
+
+    out_path.write_text(
+        f"{license_header}{banner}{content.rstrip()}\n\n{banner}",
+        encoding="utf-8",
+    )
 
     print(f"Wrote {out_path} (from commit {sha[:12]}).")
     return 0

dev/dev_scripts/download_latest_test_data.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 aas-core3.2-python AUTHORS
+#
+# SPDX-License-Identifier: MIT
+
 """Download the latest test data released on aas-core-testdatagen."""
 
 import argparse