Run pyflakes on examples (#1062)

* Run pyflakes on examples

It should catch some runtime issues.

* Update .github/workflows/test.yml

Author: therve

.github/workflows/test.yml

@@ -102,6 +102,12 @@ jobs:
         uses: actions/setup-python@v4
         with:
           python-version: "3.10"
+      - name: Upgrade pip
+        run: |
+          python -m pip install --upgrade pip
+          pip install --upgrade wheel setuptools build
+      - name: Install
+        run: pip install --disable-pip-version-check pyflakes
       - name: Check examples
         run: ./check-examples.sh
         shell: bash

check-examples.sh

@@ -5,3 +5,5 @@ if [ $? -ne 0 ]; then
     echo -e "Failed to build examples"
     exit 1
 fi
+
+pyflakes examples