If the pipe diameter is not specified, the dent depth as a percentage of the diameter is 0.

history.txt

@@ -1,3 +1,5 @@
+* If the pipe diameter is not specified, the dent depth as a percentage of the diameter is 0.
+
 27.08.2026 ver.1.27
 -------------------
 

pipeline_csv/csvfile/defect.py

@@ -85,6 +85,8 @@ def depth_percent(self):
 
         # Depth.HundredthsOfMillimeter
         if self.is_dent:
+            if self.pipe.diameter is None:
+                return 0
             return float(self.row.depth_max) / float(self.pipe.diameter)
 
         return float(self.row.depth_max) / (self.pipe.thick / 10.0)

tests/test/test_csv/test_defect.py

@@ -89,6 +89,9 @@ def test_depth(self):  # pylint: disable=too-many-statements
         assert mloss_defekt.depth_percent is None
         assert mloss_defekt.depth_mm is None
 
+        dent_defekt.pipe.diameter = None
+        assert dent_defekt.depth_percent == 0
+
     def test_props(self):  # pylint: disable=too-many-statements
         """Check defekt properties."""
         from pipeline_csv import TypeHorWeld