possible fix for the python issue

Author: UserSniper

.github/actions/setup_python/action.yaml

@@ -0,0 +1,50 @@
+---
+name: "Setup Python"
+description: "Set up a specific version of Python and add the command-line tools to the PATH."
+author: "GitHub"
+inputs:
+  python-version:
+    description: "Version range or exact version of Python or PyPy to use, using SemVer's version range syntax. Reads from .python-version if unset."
+  python-version-file:
+    description: "File containing the Python version to use. Example: .python-version"
+  cache:
+    description: "Used to specify a package manager for caching in the default directory. Supported values: pip, pipenv, poetry."
+    required: false
+  architecture:
+    description: "The target architecture (x86, x64, arm64) of the Python or PyPy interpreter."
+  check-latest:
+    description: "Set this option if you want the action to check for the latest available version that satisfies the version spec."
+    default: false
+  token:
+    description: "The token used to authenticate when fetching Python distributions from https://github.com/actions/python-versions. When running this action on github.com, the default value is sufficient. When running on GHES, you can pass a personal access token for github.com if you are experiencing rate limiting."
+    default: ${{ github.server_url == 'https://github.com' && github.token || '' }}
+  cache-dependency-path:
+    description: "Used to specify the path to dependency files. Supports wildcards or a list of file names for caching multiple dependencies."
+  update-environment:
+    description: "Set this option if you want the action to update environment variables."
+    default: true
+  allow-prereleases:
+    description: "When 'true', a version range passed to 'python-version' input will match prerelease versions if no GA versions are found. Only 'x.y' version range is supported for CPython."
+    default: false
+  freethreaded:
+    description: "When 'true', use the freethreaded version of Python."
+    default: false
+  pip-version:
+    description: "Used to specify the version of pip to install with the Python. Supported format: major[.minor][.patch]."
+  pip-install:
+    description: "Used to specify the packages to install with pip after setting up Python. Can be a requirements file or package names."
+outputs:
+  python-version:
+    description: "The installed Python or PyPy version. Useful when given a version range as input."
+  cache-hit:
+    description: "A boolean value to indicate a cache entry was found"
+  python-path:
+    description: "The absolute path to the Python or PyPy executable."
+runs:
+  using: 'node24'
+  main: 'dist/setup/index.js'
+  post: 'dist/cache-save/index.js'
+  post-if: success()
+branding:
+  icon: 'code'
+  color: 'yellow'

.github/workflows/main.yml

@@ -20,6 +20,10 @@ jobs:
         uses: ./.github/actions/cache_cc65
       - name: Cache llvm-mos-sdk
         uses: ./.github/actions/cache_llvm-mos-sdk
+      - name: Setup Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: '3.12.3'
       - name: Set path
         run: |
           echo "${{ github.workspace }}/opt/cc65/bin:${{ github.workspace }}/opt/llvm-mos-sdk/bin" >> $GITHUB_PATH