fix: update toml file with setup.cfg content (#319)

This PR puts the `version` under the right header. and adds the missing
info in pyproject.toml

Author: ohmayr

pyproject.toml

@@ -1,4 +1,37 @@
+# Copyright 2025 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 [build-system]
-# Minimum requirements for the build system to execute.
-requires = ["setuptools", "wheel"]  # PEP 508 specifications.
-version = "1.7.1"
+requires = ["setuptools", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "google-crc32c"
+version = "1.7.1"
+description = "A python wrapper of the C library 'Google CRC32C'"
+readme = "README.md"
+requires-python = ">=3.9"
+license = "Apache-2.0"
+authors = [{ name = "Google LLC", email = "[email protected]" }]
+classifiers = [
+    "Development Status :: 4 - Beta",
+    "Intended Audience :: Developers",
+    "Operating System :: OS Independent",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
+]

src/google_crc32c/_checksum.py

@@ -38,7 +38,7 @@ def update(self, data):
             chunk (Optional[bytes]): a chunk of data used to extend
                 the CRC32C checksum.
         """
-        raise NotImplemented()
+        raise NotImplementedError
 
     def digest(self):
         """Big-endian order, per RFC 4960.