--- a/hgext3rd/evolve/__init__.py	Wed Mar 08 23:04:45 2017 +0100
+++ b/hgext3rd/evolve/__init__.py	Tue Mar 07 14:19:12 2017 +0100
@@ -111,7 +111,7 @@
 from mercurial.node import nullid
 
 from . import (
-    exchange,
+    obsexchange,
     exthelper,
     metadata,
     serveronly,
@@ -148,7 +148,7 @@
 
 
 eh = exthelper.exthelper()
-eh.merge(exchange.eh)
+eh.merge(obsexchange.eh)
 uisetup = eh.final_uisetup
 extsetup = eh.final_extsetup
 reposetup = eh.final_reposetup
@@ -3093,7 +3093,7 @@
 
 @eh.command(
     'debugobsconvert',
-    [('', 'new-format', exchange._bestformat, _('Destination format for markers.'))],
+    [('', 'new-format', obsexchange._bestformat, _('Destination format for markers.'))],
     '')
 def debugobsconvert(ui, repo, new_format):
     origmarkers = repo.obsstore._all  # settle version