wip: ci

.github/workflows/ci.yml

@@ -20,10 +20,11 @@ jobs:
     steps:
       - name: Checkout repo
         uses: actions/checkout@v4
-      - name: Install pixi ${{ matrix.pixi-version }}
-        run: |
-          export PIXI_VERSION=v${{ matrix.pixi-version }}
-          curl -fsSL https://pixi.sh/install.sh | bash
+      - name: Install Pixi ${{ matrix.pixi-version }}
+        uses: prefix-dev/setup-pixi@v0.5.1
+        with:
+          pixi-version: v${{ matrix.pixi-version }}
+          run-install: false
       - name: Install Poetry
         run: pipx install poetry==${{ env.poetry-version }}
       - name: Install Python ${{ matrix.python-version }}

src/pixi_kernel/__main__.py

@@ -2,6 +2,7 @@
 import shutil
 import subprocess
 from pathlib import Path
+from typing import Union
 
 import msgspec
 from packaging import version
@@ -15,7 +16,7 @@
 logger = logging.getLogger(__name__)
 
 
-def find_project_manifest() -> str | PixiKernelError:
+def find_project_manifest() -> Union[str, PixiKernelError]:
     # Ensure pixi is installed
     if shutil.which("pixi") is None:
         return PixiKernelError(

src/pixi_kernel/pixi.py

@@ -1,13 +1,13 @@
 from __future__ import annotations
 
-from typing import List
+from typing import List, Optional
 
 import msgspec
 
 
 class PixiInfo(msgspec.Struct, frozen=True, kw_only=True):
     environments_info: List[EnvironmentInfo]
-    project_info: ProjectInfo | None
+    project_info: Optional[ProjectInfo]
 
 
 class EnvironmentInfo(msgspec.Struct, frozen=True, kw_only=True):