Drop Python 3.9

HayaoSuzuki · HayaoSuzuki · commit 49247bcf2397 · 2026-01-30T17:56:18.000+09:00
Goodbye, 3.9
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -38,7 +38,7 @@ jobs:
     name: Test with python ${{ matrix.python-version }} / ${{ matrix.os-version }}
     strategy:
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
         os-version: ["ubuntu-latest", "windows-latest"]
         exclude:
           - os-version: windows-latest
diff --git a/pyproject.toml b/pyproject.toml
@@ -24,7 +24,7 @@ include = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.9"
+python = ">=3.10"
 Werkzeug = ">= 2.0.0"
 
 
@@ -138,5 +138,5 @@ lint.ignore = [
   "UP032",
 ]
 line-length = 120
-target-version = "py39"
+target-version = "py310"
 exclude = ["doc", "example*.py", "tests/examples/*.py"]

Original file line number	Diff line number	Diff line change
`@@ -24,7 +24,7 @@ include = [`
`24`	`24`	`]`
`25`	`25`
`26`	`26`	`[tool.poetry.dependencies]`
`27`		`-python = ">=3.9"`
	`27`	`+python = ">=3.10"`
`28`	`28`	`Werkzeug = ">= 2.0.0"`
`29`	`29`
`30`	`30`
`@@ -138,5 +138,5 @@ lint.ignore = [`
`138`	`138`	`"UP032",`
`139`	`139`	`]`
`140`	`140`	`line-length = 120`
`141`		`-target-version = "py39"`
	`141`	`+target-version = "py310"`
`142`	`142`	`exclude = ["doc", "example.py", "tests/examples/.py"]`