more robust Path bugfix

process/config.py

@@ -438,6 +438,8 @@ DONT_DELETE = [
 
 # function to clean up temporary files if they are not in the DONT_DELETE list
 def cleanup(dataset):
+    if isinstance(dataset, str):
+        dataset = Path(dataset)
     if dataset not in DONT_DELETE:
         if dataset.is_file():
             dataset.unlink()