--- a/hgext3rd/evolve/obshistory.py	Tue Mar 10 11:07:06 2020 +0100
+++ b/hgext3rd/evolve/obshistory.py	Wed Mar 04 16:30:19 2020 +0100
@@ -13,9 +13,10 @@
     commands,
     error,
     graphmod,
-    patch,
+    logcmdutil,
+    node as nodemod,
     obsutil,
-    node as nodemod,
+    patch,
     pycompat,
     scmutil,
     util,
@@ -134,7 +135,7 @@
     b"patch": TEMPLATE_PATCH,
 }
 
-class obsmarker_printer(compat.changesetprinter):
+class obsmarker_printer(logcmdutil.changesetprinter):
     """show (available) information about a node
 
     We display the node, description (if available) and various information
@@ -143,7 +144,7 @@
     def __init__(self, ui, repo, *args, **kwargs):
 
         if kwargs.pop('obspatch', False):
-            if compat.changesetdiffer is None:
+            if logcmdutil.changesetdiffer is None:
                 kwargs['matchfn'] = scmutil.matchall(repo)
             else:
                 kwargs['differ'] = scmutil.matchall(repo)
@@ -435,7 +436,7 @@
     edges = graphmod.asciiedges
     walker = _obshistorywalker(repo.unfiltered(), revs, opts.get('all', False),
                                opts.get('filternonlocal', False))
-    compat.displaygraph(ui, repo, walker, displayer, edges)
+    logcmdutil.displaygraph(ui, repo, walker, displayer, edges)
 
 def _debugobshistoryrevs(ui, repo, revs, opts):
     """ Display the obsolescence history for revset