sudo snap install libxml2 libxslt

Author: cclauss

.github/workflows/build.yml

@@ -21,7 +21,7 @@ jobs:
         run: |
           python -m pip install --upgrade pip setuptools six wheel
           # sudo apt-get install libxml2 libxslt
-          snap install libxml2 libxslt
+          sudo snap install libxml2 libxslt
           python -m pip install matplotlib>=3.4.2
           python -m pip install mypy pytest-cov -r requirements.txt
       - run: mypy --install-types --non-interactive .