code quality

.github/workflows/ci.yml

@@ -16,6 +16,7 @@ jobs:
       - name: flake8 Lint
         uses: py-actions/flake8@v2
         with:
+          ignore: "BLK100"
           exclude: "tests/*"
           max-line-length: "128"
           path: "."

pandora-box.py

@@ -90,9 +90,9 @@ class PandoraBox:
         """ Convert size to human readble string """
         for unit in ['B', 'KB', 'MB', 'GB', 'TB']:
             if size < 1024.0:
-                break
-            size /= 1024.0
                 return f"{size:.{decimal_places}f}{unit}"
+            size /= 1024.0
+        return None
 
     # -----------------------------------------------------------
     # Image Screen