FIX: Ignore exception if attempted deletion fails (fixes #817)

2026-06-27 19:32:26 +08:00 · 2015-02-28 13:16:56 -06:00
parent 3f6d9fa985
commit ea02a4e348
1 changed files with 4 additions and 1 deletions
@@ -167,7 +167,10 @@ def _assemble_contours(points_iterator):
                    head.extend(tail)
                    # remove all traces of tail:
                    del starts[to_point]
-                    del ends[tail[-1]]
+                    try:
+                        del ends[tail[-1]]
+                    except KeyError:
+                        pass
                    del contours[tail_num]
                    # remove the old end of head and add the new end.
                    del ends[from_point]