Fix attrs warning on cmp.

jeromekelleher · jeromekelleher · commit 5c6f0e5f19ed · 2022-05-08T10:27:37.000+01:00
diff --git a/tsinfer/formats.py b/tsinfer/formats.py
@@ -2097,7 +2097,7 @@ def populations(self):
             yield Population(j, metadata=metadata)
 
 
-@attr.s(cmp=False)
+@attr.s(order=False, eq=False)
 class Ancestor:
     """
     An ancestor object.
