[issue-839] Drop support for Python 3.7 (we are long past its EOL)

Signed-off-by: Armin Tänzer <armin.taenzer@tngtech.com>

Author: armintaenzertng

.github/workflows/check_codestyle.yml

@@ -20,13 +20,7 @@ jobs:
     strategy:
       matrix:
         os: [ ubuntu-latest, macos-latest, windows-latest ]
-        python-version: [ "3.7", "3.8", "3.9", "3.10", "3.11" ]
-        exclude: # see https://github.com/actions/runner-images/issues/9770#issuecomment-2085623315
-          - python-version: "3.7"
-            os: macos-latest
-        include:
-          - python-version: "3.7"
-            os: macos-13
+        python-version: [ "3.8", "3.9", "3.10", "3.11" ]
 
     steps:
       - uses: actions/checkout@v3

.github/workflows/install_and_test.yml

@@ -17,13 +17,7 @@ jobs:
     strategy:
       matrix:
         os: [ ubuntu-latest, macos-latest, windows-latest ]
-        python-version: [ "3.7", "3.8", "3.9", "3.10", "3.11" ]
-        exclude: # see https://github.com/actions/runner-images/issues/9770#issuecomment-2085623315
-          - python-version: "3.7"
-            os: macos-latest
-        include:
-          - python-version: "3.7"
-            os: macos-13
+        python-version: [ "3.8", "3.9", "3.10", "3.11" ]
 
     steps:
       - uses: actions/checkout@v3

.github/workflows/prepare_release.yml

@@ -19,7 +19,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.7'
+          python-version: '3.8'
       - name: Set up dependencies
         run: |
           python -m pip install --upgrade pip

pyproject.toml

@@ -16,14 +16,13 @@ classifiers = [
     "Intended Audience :: Developers",
     "Intended Audience :: System Administrators",
     "License :: OSI Approved :: Apache Software License",
-    "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",
 ]
 urls = { Homepage = "https://github.com/spdx/tools-python" }
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 dependencies = ["click", "pyyaml", "xmltodict", "rdflib", "beartype", "uritools", "license_expression", "ply", "semantic_version"]
 dynamic = ["version"]