diff --git a/uvdat/core/tasks/dataset.py b/uvdat/core/tasks/dataset.py
index dcce2cad..d2b83b5e 100644
--- a/uvdat/core/tasks/dataset.py
+++ b/uvdat/core/tasks/dataset.py
@@ -20,10 +20,7 @@ def convert_dataset(
     dataset.save()
 
     # remove any existing generated files
-    generated_files = FileItem.objects.filter(
-        dataset=dataset,
-        metadata__generated=True
-    ).delete()
+    generated_files = FileItem.objects.filter(dataset=dataset, metadata__generated=True).delete()
 
     if dataset.dataset_type == dataset.DatasetType.RASTER:
         RasterMapLayer.objects.filter(dataset=dataset).delete()
diff --git a/uvdat/core/tasks/map_layers.py b/uvdat/core/tasks/map_layers.py
index 51e59d4f..674932db 100644
--- a/uvdat/core/tasks/map_layers.py
+++ b/uvdat/core/tasks/map_layers.py
@@ -66,7 +66,7 @@ def split_raster_zip(file_item, style_options):
                 archive_file.write(file_item.file.open('rb').read())
                 # unzip all
                 with zipfile.ZipFile(archive_path) as zip_archive:
-                   zip_archive.extractall(extracted_path)
+                    zip_archive.extractall(extracted_path)
             # read VRT files
             vrt_files = list(extracted_path.glob('**/*.vrt'))
             vrt_files.sort()  # rely on filenames for ordering
@@ -88,9 +88,7 @@ def split_raster_zip(file_item, style_options):
                     metadata=metadata,
                 )
                 with open(cog_filepath, 'rb') as cog:
-                    new_file_item.file.save(
-                        cog_filepath, ContentFile(cog.read())
-                    )
+                    new_file_item.file.save(cog_filepath, ContentFile(cog.read()))
                 if cog_size > 0:
                     create_raster_map_layer(new_file_item, style_options)