ci: PR check on python 3.9-3.13 (#203)

* ci: PR check on python 3.9-3.13

* README: modify python version about EOL

.github/workflows/pr-check.yml

@@ -21,7 +21,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest]
-        python: ['3.8', '3.9', '3.10', '3.11']
+        python: ['3.9', '3.10', '3.11', '3.12', '3.13']
 
     steps:
       - name: Checkout
@@ -30,10 +30,10 @@ jobs:
           path: ${{ env.special-working-directory-relative }}
 
       # Install bundled libs using 3.8 even though you test it on other versions.
-      - name: Use Python 3.8
+      - name: Use Python 3.10
         uses: actions/setup-python@v5
         with:
-          python-version: '3.8'
+          python-version: '3.10'
 
       - name: Update pip, install wheel and nox
         run: python -m pip install -U pip wheel nox

README.md

@@ -2,7 +2,7 @@
 
 A formatter extension with support for python files and notebook cell. Feel free to open an issue to tell me what feature else do you need since it's a preview version.  
 Note:  
-* This extension is supported for all [actively supported versions](https://devguide.python.org/versions/#supported-versions) of the python language (i.e., python >= 3.8(EOL: 2024-10)).
+* This extension is supported for all [actively supported versions](https://devguide.python.org/versions/#supported-versions) of the python language (i.e., python >= 3.9(EOL: 2025-10)).
 
 ## Quick Start
 Setting the following can enable this formatter quickly.
@@ -17,7 +17,7 @@ Setting the following can enable this formatter quickly.
 
 
 ## Usage
-* Install `yapf` package from pip in following. This is optional but recommended way, else it will use the bundled `yapf=0.40.2`
+* Install `yapf` package from pip in following. This is optional but recommended way, else it will use the bundled `yapf=0.43.0`
 ```
 pip install yapf
 ```
@@ -34,8 +34,8 @@ pip install yapf
   }
 ```
 
-## Address crash for python3.7 or lower
-Use `yapf.interpreter` property to select a python interpreter that 3.8 or higher to run this tool by subprocess
+## Address crash for python3.8 or lower
+Use `yapf.interpreter` property to select a python interpreter that 3.9 or higher to run this tool by subprocess
 
 
 ## file mode & modifications mode