--- a/hgext3rd/evolve/evolvecmd.py	Thu Apr 19 16:12:37 2018 +0200
+++ b/hgext3rd/evolve/evolvecmd.py	Thu Apr 19 16:15:10 2018 +0200
@@ -1019,7 +1019,7 @@
     """Compute sets of commits divergent with a given one"""
     cache = {}
     base = {}
-    for n in compat.allprecursors(repo.obsstore, [ctx.node()]):
+    for n in obsutil.allpredecessors(repo.obsstore, [ctx.node()]):
         if n == ctx.node():
             # a node can't be a base for divergence with itself
             continue