add null check on pytype for type checking

.github/workflows/ci_ut_ext_base_workflow.yml

@@ -1,61 +1,84 @@
 name: UT CI Run for Python Extension Base
 
 on:
-    push:
-      branches: [ dev, master, main, release/* ]
-      paths:
-        - 'azure-functions-extension-base/**'
-    pull_request:
-        branches: [ dev, master, main, release/* ]
-        paths:
-          - 'azure-functions-extension-base/**'
+  push:
+    branches:
+      - dev
+      - main
+      - release/*
+    paths:
+      - 'azure-functions-extension-base/**'
+  pull_request:
+    branches:
+      - dev
+      - main
+      - release/*
+    paths:
+      - 'azure-functions-extension-base/**'
 
 jobs:
   build:
     name: "Python Extension Base UT CI Run"
     runs-on: ubuntu-latest
     strategy:
-        fail-fast: false
-        matrix:
-          python-version: [ 3.8, 3.9, "3.10", "3.11" ]
+      fail-fast: false
+      matrix:
+        python-version: [ 3.8, 3.9, "3.10", "3.11" ]
     permissions: read-all
     steps:
-    - name: Checkout Repository
-      uses: actions/checkout@v4
-
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
-      with:
-        python-version: ${{ matrix.python-version }}
-
-    - name: Install dependencies
-      working-directory: azure-functions-extension-base
-      run: |
-        python -m pip install --upgrade pip
-        python -m pip install -U -e .[dev]
-
-    - name: Run Unit Tests
-      working-directory: azure-functions-extension-base
-      env:
-        AzureWebJobsStorage: ${{ secrets.AzureWebJobsStorage }}
-      run: |
-        python -m pytest -q --instafail --cov=. --cov-report xml --cov-branch tests
-
-    - name: Upload Coverage to Codecov
-      uses: codecov/codecov-action@v3
-      with:
-        file: ./azure-functions-extension-base/coverage.xml
-        flags: unittests
-        name: codecov
-        fail_ci_if_error: false
-
-    - name: Notify dedicated teams channel
-      uses: jdcargile/[email protected]
-      if: failure()
-      with:
-        github-token: ${{ github.token }} # this will use the runner's token.
-        ms-teams-webhook-uri: ${{ secrets.MS_TEAMS_WEBHOOK_URI }}
-        notification-summary: "Python Extension Base UT CI Failed for Python ${{ matrix.python-version }}"
-        notification-color: 17a2b8
-        timezone: America/Denver
-        verbose-logging: false
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        working-directory: azure-functions-extension-base
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install -U -e .[dev]
+
+      - name: Run Unit Tests
+        working-directory: azure-functions-extension-base
+        env:
+          AzureWebJobsStorage: ${{ secrets.AzureWebJobsStorage }}
+        run: |
+          python -m pytest -q --instafail --cov=. --cov-report xml --cov-branch tests
+
+      - name: Upload Coverage to Codecov
+        uses: codecov/codecov-action@v3
+        with:
+          file: ./azure-functions-extension-base/coverage.xml
+          flags: unittests
+          name: codecov
+          fail_ci_if_error: false
+
+  send-notification:
+    runs-on: ubuntu-latest
+    needs: build
+    if: always()
+    steps:
+      - name: Notify dedicated teams channel on failure
+        if: ${{ always() && needs.build.result == 'failure' }}
+        uses: jdcargile/[email protected]
+        with:
+          github-token: ${{ github.token }}
+          ms-teams-webhook-uri: ${{ secrets.MS_TEAMS_WEBHOOK_URI }}
+          notification-summary: "Python Extension Base UT CI Failed"
+          notification-color: FF0000
+          timezone: America/Denver
+          verbose-logging: false
+
+      - name: Notify dedicated teams channel on success
+        if: ${{ always() && needs.build.result == 'success' }}
+        uses: jdcargile/[email protected]
+        with:
+          github-token: ${{ github.token }}
+          ms-teams-webhook-uri: ${{ secrets.MS_TEAMS_WEBHOOK_URI }}
+          notification-summary: "Python Extension Base UT CI Passed"
+          notification-color: 008000
+          timezone: America/Denver
+          verbose-logging: false
+

azure-functions-extension-base/azure/functions/extension/base/web.py

@@ -1,5 +1,6 @@
 from abc import abstractmethod
 from enum import Enum
+import inspect
 from typing import Callable
 
 base_extension_module = __name__
@@ -53,7 +54,9 @@ def get_request_type(cls):
 
     @classmethod
     def check_type(cls, pytype: type) -> bool:
-        return cls._request_type is not None and issubclass(pytype, cls._request_type)
+        if pytype is not None and inspect.isclass(pytype):
+            return cls._request_type is not None and issubclass(pytype, cls._request_type)
+        return False
 
 
 class ResponseTrackerMeta(type):
@@ -87,8 +90,10 @@ def get_response_type(cls, label):
 
     @classmethod
     def check_type(cls, pytype: type) -> bool:
-        return cls._response_types is not None and any(issubclass(pytype, response_type)
-                                                        for response_type in cls._response_types.values())
+        if pytype is not None and inspect.isclass(pytype):
+            return cls._response_types is not None and any(issubclass(pytype, response_type)
+                                                            for response_type in cls._response_types.values())
+        return False
 
 class WebApp(metaclass=ModuleTrackerMeta):
     @abstractmethod