Drop support for Python 3.7

.github/workflows/python_test_suite.yml

@@ -12,7 +12,7 @@ jobs:
     name: Run Python test suite
     strategy:
       matrix:
-        python-version: [3.7, 3.11]  # no particular need for in-between versions
+        python-version: [3.8, 3.11]  # no particular need for in-between versions
     runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9  # v3.5.3

.pre-commit-config.yaml

@@ -6,7 +6,7 @@ repos:
     rev: v3.7.0
     hooks:
       - id: pyupgrade
-        args: ['--py37-plus']
+        args: ['--py38-plus']
 
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v4.4.0

setup.py

@@ -17,7 +17,7 @@
     download_url='https://github.com/hartwork/grub2-theme-preview/archive/%s.tar.gz' % VERSION_STR,
     author='Sebastian Pipping',
     author_email='[email protected]',
-    python_requires='>=3.7',
+    python_requires='>=3.8',
     setup_requires=[
         'setuptools>=38.6.0',  # for long_description_content_type
     ],
@@ -36,7 +36,6 @@
         'Natural Language :: English',
         'Programming Language :: Python',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',