‼️ BREAKING: drop Python 3.9 (#45)

Author: kdeldycke

.github/workflows/tests.yml

@@ -24,9 +24,9 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: ['3.9', '3.13', '3.14-dev']
+        python-version: ['3.10', '3.13', '3.14', '3.15-dev']
         os: [ubuntu-latest, macos-latest, windows-latest]
-    continue-on-error: ${{ matrix.python-version == '3.14-dev' }}
+    continue-on-error: ${{ matrix.python-version == '3.15-dev' }}
 
     steps:
     - uses: actions/checkout@v4
@@ -49,7 +49,7 @@ jobs:
 
     # FYI: Requires token to continue usage
     # - name: Upload to Codecov
-    #   if: matrix.os == 'ubuntu-latest' && matrix.python-version == 3.9
+    #   if: matrix.os == 'ubuntu-latest' && matrix.python-version == 3.10
     #   uses: codecov/codecov-action@v1
     #   with:
     #     name: pytests
@@ -65,7 +65,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v2
       with:
-        python-version: 3.9
+        python-version: 3.10
 
     - name: Installation (deps and package)
       run: |
@@ -87,7 +87,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v5
       with:
-        python-version: 3.9
+        python-version: 3.10
     - name: install flit
       run: |
         pip install flit~=3.0

pyproject.toml

@@ -18,7 +18,7 @@ classifiers = [
 ]
 keywords = "mdformat,markdown,formatter,gfm"
 
-requires-python=">=3.9"
+requires-python=">=3.10"
 requires=[
     "mdformat >=0.7.0",
     "mdit-py-plugins >=0.3.0",