Update pythonpackage.yml

Author: jgrewe

.github/workflows/pythonpackage.yml

@@ -62,6 +62,9 @@ jobs:
           activate-environment: deptest-${{ matrix.python-version }}
           python-version: ${{ matrix.python-version }}
           channels: conda-forge
+      - name: Install setuptools
+        run: |
+          conda install -c conda-forge setuptools
       - name: Show conda details
         run: |
           conda info
@@ -71,7 +74,7 @@ jobs:
       - name: Install Python dependencies
         run: |
           python setup.py install
-          pip install pytest scipy pillow matplotlib
+          pip install pytest scipy pillow matplotlib setuptools
       - name: Run tests
         run: |
           pytest