style: clean up whitespace and improve code readability in ext.py and base.py

Author: legout

src/flowerpower/fs/ext.py

@@ -920,14 +920,14 @@ def _read_parquet(
                 unified_schema = unify_schemas_pa(schemas)
                 tables = [cast_schema(t, unified_schema) for t in tables]
             result = pa.concat_tables(tables, promote_options="permissive")
-            #if opt_dtypes:
+            # if opt_dtypes:
             #    result = opt_dtype_pa(result, strict=False)
             return result
         elif isinstance(tables, pa.Table):
-            #if opt_dtypes:
+            # if opt_dtypes:
             #    tables = opt_dtype_pa(tables, strict=False)
             return tables
-        #else:
+        # else:
         #    return pa.concat_tables(tables, promote_options="permissive")
     return tables
 
@@ -1045,7 +1045,7 @@ def _read_parquet_batches(
                 unified_schema = unify_schemas_pa(schemas)
                 batch_tables = [cast_schema(t, unified_schema) for t in batch_tables]
             result = pa.concat_tables(batch_tables, promote_options="permissive")
-            #if opt_dtypes:
+            # if opt_dtypes:
             #    result = opt_dtype_pa(result, strict=False)
             yield result
         else:

src/flowerpower/plugins/io/base.py

@@ -221,7 +221,6 @@ def _load(
                 reload = True
                 self.use_threads = use_threads
 
-
         if opt_dtypes is not None:
             if self.opt_dtypes != opt_dtypes:
                 reload = True