--- a/hgext/largefiles/__init__.py	Sat May 06 04:51:25 2017 +0530
+++ b/hgext/largefiles/__init__.py	Fri Feb 10 16:56:29 2017 -0800
@@ -129,7 +129,7 @@
 
 def featuresetup(ui, supported):
     # don't die on seeing a repo with the largefiles requirement
-    supported |= set(['largefiles'])
+    supported |= {'largefiles'}
 
 def uisetup(ui):
     localrepo.localrepository.featuresetupfuncs.add(featuresetup)