Add typing and style checks as separate workflows

.github/workflows/code-style-checks.yml

@@ -0,0 +1,65 @@
+name: Code Style Checks
+
+on:
+  push:
+    branches:
+      - master
+      - "*.*.*"
+    paths:
+      - "**.py"
+      - "setup.cfg"
+      - "requirements-dev.txt"
+      - "pyproject.toml"
+      - ".pre-commit-config.yaml"
+      - ".github/workflows/code-style-checks.yml"
+      - "!assets/**"
+      - "!docker/**"
+      - "!docs/**"
+      - "!conda.recipe"
+  pull_request:
+    paths:
+      - "**.py"
+      - "setup.cfg"
+      - "requirements-dev.txt"
+      - "pyproject.toml"
+      - ".pre-commit-config.yaml"
+      - ".github/workflows/code-style-checks.yml"
+      - "!assets/**"
+      - "!docker/**"
+      - "!docs/**"
+      - "!conda.recipe"
+  workflow_dispatch:
+
+concurrency:
+  # <workflow_name>-<branch_name>-<true || commit_sha (if branch is protected)>
+  group: code-style-${{ github.ref_name }}-${{ !(github.ref_protected) || github.sha }}
+  cancel-in-progress: true
+
+jobs:
+  code-style:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.9", "3.13"]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: astral-sh/setup-uv@v6
+        with:
+          version: "latest"
+          python-version: ${{ matrix.python-version }}
+          activate-environment: true
+          enable-cache: true
+          cache-dependency-glob: |
+            **/requirements-dev.txt
+            **/pyproject.toml
+
+      - name: Install dependencies
+        run: |
+          uv pip install pre-commit
+          uv pip install -r requirements-dev.txt
+          uv pip install -e .
+
+      - name: Run pre-commit checks
+        run: pre-commit run --all-files --show-diff-on-failure

.github/workflows/typing-checks.yml

@@ -0,0 +1,69 @@
+name: Type Checking
+
+on:
+  push:
+    branches:
+      - master
+      - "*.*.*"
+    paths:
+      - "ignite/**"
+      - "examples/**.py"
+      - "tests/ignite/**"
+      - "requirements-dev.txt"
+      - "pyproject.toml"
+      - "mypy.ini"
+      - ".github/workflows/typing-checks.yml"
+  pull_request:
+    paths:
+      - "ignite/**"
+      - "examples/**.py"
+      - "tests/ignite/**"
+      - "requirements-dev.txt"
+      - "pyproject.toml"
+      - "mypy.ini"
+      - ".github/workflows/typing-checks.yml"
+  workflow_dispatch:
+
+concurrency:
+  # <workflow_name>-<branch_name>-<true || commit_sha (if branch is protected)>
+  group: typing-${{ github.ref_name }}-${{ !(github.ref_protected) || github.sha }}
+  cancel-in-progress: true
+
+jobs:
+  mypy:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.9", "3.13"]
+        pytorch-channel: [pytorch]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Get year & week number
+        id: get-date
+        run: |
+          echo "date=$(/bin/date "+%Y-%U")" >> $GITHUB_OUTPUT
+
+      - uses: astral-sh/setup-uv@v6
+        with:
+          version: "latest"
+          python-version: ${{ matrix.python-version }}
+          activate-environment: true
+          enable-cache: true
+          cache-suffix: "${{ steps.get-date.outputs.date }}-typing-${{ runner.os }}-${{ matrix.python-version }}"
+          cache-dependency-glob: |
+            **/requirements-dev.txt
+            **/pyproject.toml
+
+      - name: Install PyTorch
+        run: uv pip install torch torchvision --index-url https://download.pytorch.org/whl/cpu
+
+      - name: Install dependencies
+        run: |
+          uv pip install -r requirements-dev.txt
+          uv pip install .
+          uv pip install mypy
+
+      - name: Run MyPy type checking
+        run: mypy

.github/workflows/unit-tests.yml

@@ -93,17 +93,6 @@ jobs:
           uv pip install .
           uv pip list
 
-      - name: Check code formatting
-        run: |
-          pre-commit run -a
-
-      - name: Run Mypy
-        # https://github.com/pytorch/ignite/pull/2780
-        #
-        if: ${{ matrix.os == 'ubuntu-latest' }}
-        run: |
-          mypy
-
       # Download MNIST: https://github.com/pytorch/ignite/issues/1737
       # to "/tmp" for unit tests
       - name: Download MNIST

.gitignore

@@ -48,3 +48,5 @@ conda_build/
 
 .neptune/
 pytest.ini
+
+.vscode/*

ignite/handlers/clearml_logger.py

@@ -118,6 +118,8 @@ class ClearMLLogger(BaseLogger):
 
     """
 
+    _task: Any
+
     def __init__(self, **kwargs: Any):
         try:
             from clearml import Task
@@ -823,6 +825,8 @@ class ClearMLSaver(DiskSaver):
 
     """
 
+    _task: Any
+
     def __init__(
         self,
         logger: Optional[ClearMLLogger] = None,
@@ -858,7 +862,7 @@ def _setup_check_clearml(self, logger: ClearMLLogger, output_uri: str) -> None:
         except ImportError:
             try:
                 # Backwards-compatibility for legacy Trains SDK
-                from trains import Task
+                from trains import Task  # type: ignore[no-redef]
             except ImportError:
                 raise ModuleNotFoundError(
                     "This contrib module requires clearml to be installed. "
@@ -933,7 +937,7 @@ def __call__(self, checkpoint: Mapping, filename: str, metadata: Optional[Mappin
         except ImportError:
             try:
                 # Backwards-compatibility for legacy Trains SDK
-                from trains.binding.frameworks import WeightsFileHandler
+                from trains.binding.frameworks import WeightsFileHandler  # type: ignore[no-redef]
             except ImportError:
                 raise ModuleNotFoundError(
                     "This contrib module requires clearml to be installed. "
@@ -957,8 +961,8 @@ def __call__(self, checkpoint: Mapping, filename: str, metadata: Optional[Mappin
             metadata=metadata,
         )
 
-        pre_cb_id = WeightsFileHandler.add_pre_callback(cb_context.pre_callback)
-        post_cb_id = WeightsFileHandler.add_post_callback(cb_context.post_callback)
+        pre_cb_id = WeightsFileHandler.add_pre_callback(cb_context.pre_callback)  # type: ignore[arg-type]
+        post_cb_id = WeightsFileHandler.add_post_callback(cb_context.post_callback)  # type: ignore[arg-type]
 
         try:
             super(ClearMLSaver, self).__call__(checkpoint, filename, metadata)