libpng-dev

Author: trangdata

.github/workflows/pythonapp.yml

@@ -41,7 +41,7 @@ jobs:
       run: |
         pip install ".[dev]"
         sudo apt-get update
-        sudo apt-get install libssl-dev libcurl4-openssl-dev
+        sudo apt-get install libssl-dev libcurl4-openssl-dev libpng-dev
     - name: Test with nose
       run: |
         nosetests -s -v