Added packaging

.github/workflows/testing.yml

@@ -21,7 +21,7 @@ jobs:
           sudo apt-get install -y imagemagick
       - name: Install testing dependencies
         run: |
-          conda install -c anaconda --file conda-requirements.txt flake8 pip pytest coveralls coverage
+          conda install -c anaconda --file conda-requirements.txt flake8 packaging pytest coveralls coverage
       - name: Conda info
         run: |
           conda info