Ignore lint error for f_generator

Author: liran-funaro

Makefile

@@ -35,3 +35,10 @@ release:
 	@rm -rf dist/*
 	python3 -m build || exit
 	python3 -m twine upload --repository objsize dist/*
+
+lint:
+	black objsize --check --diff
+	black ./*.py --check --diff
+	flake8 objsize --count --select=E,F,W,C --show-source --max-complexity=10 --max-line-length=120 --statistics  --per-file-ignores='__init__.py:F401'
+	pylint objsize -v
+	mypy objsize --check-untyped-defs

objsize/traverse.py

@@ -348,7 +348,7 @@ def traverse_exclusive_bfs(self, *objs: Any) -> Iterator[Any]:
         current_frame = inspect.currentframe()
         frame_ids = {id(current_frame), id(subtree)}
         if hasattr(current_frame, "f_generator"):
-            frame_ids.add(id(current_frame.f_generator))
+            frame_ids.add(id(current_frame.f_generator))  # type: ignore[union-attr]
         frame_set = self.marked_set | frame_ids
 
         # We first make sure that any "old" objects that may refer to our subtree were collected.