fixes slots class and test

dlt/extract/hints.py

@@ -44,10 +44,7 @@ class TResourceHints(TypedDict, total=False):
 
 
 class HintsMeta:
-    __slots__ = ["hints", "create_table_variant"]
-
-    hints: TResourceHints
-    create_table_variant: bool
+    __slots__ = ("hints", "create_table_variant")
 
     def __init__(self, hints: TResourceHints, create_table_variant: bool) -> None:
         self.hints = hints
@@ -169,7 +166,6 @@ def compute_table_schema(self, item: TDataItem = None, meta: Any = None) -> TTab
         table_template = self._clone_hints(table_template)
         if "name" not in table_template:
             table_template["name"] = self.name
-        # table_template["columns"] = copy(self._hints["columns"])
 
         # if table template present and has dynamic hints, the data item must be provided.
         if self._table_name_hint_fun and item is None:

dlt/extract/items.py

@@ -81,20 +81,15 @@ class SourcePipeItem(NamedTuple):
 
 
 class DataItemWithMeta:
-    __slots__ = ["meta", "data"]
-
-    # meta: Any
-    # data: TDataItems
+    __slots__ = ("meta", "data")
 
     def __init__(self, meta: Any, data: TDataItems) -> None:
         self.meta = meta
         self.data = data
 
 
 class TableNameMeta:
-    __slots__ = ["table_name"]
-
-    # table_name: str
+    __slots__ = ("table_name",)
 
     def __init__(self, table_name: str) -> None:
         self.table_name = table_name

tests/pipeline/test_pipeline.py

@@ -1090,7 +1090,7 @@ def items2():
     p.extract(items2)
     p.normalize()
     # c3 was first so goes first
-    assert list(p.default_schema.get_table_columns("items").keys()) == [
+    assert list(p.default_schema.get_table_columns("items2").keys()) == [
         "c3",
         "c1",
         "c2",