Mypy type correctness (#3199)

1 files changed, 2 insertions, 1 deletions

diff --git a/lib/tartan/fill_element.py b/lib/tartan/fill_element.py
index 34139e6c..6666181e 100644
--- a/lib/tartan/fill_element.py
+++ b/lib/tartan/fill_element.py
@@ -12,12 +12,13 @@ def prepare_tartan_fill_element(element: BaseElement) -> None:
     :param element: svg element with a fill color (path, rectangle, or circle)
     """
     parent_group = element.getparent()
-    if parent_group.get_id().startswith('inkstitch-tartan'):
+    if parent_group is not None and parent_group.get_id().startswith('inkstitch-tartan'):
         # apply tartan group transform to element
         transform = element.transform @ parent_group.transform
         element.set('transform', transform)
         # remove tartan group and place element in parent group
         outer_group = parent_group.getparent()
+        assert outer_group is not None, f"Tartan element {element.get_id()} should have a parent group"
         outer_group.insert(outer_group.index(parent_group), element)
         outer_group.remove(parent_group)
     # make sure the element is invisible