--- a/mercurial/hgweb/server.py	Sun Dec 09 16:49:55 2018 +0100
+++ b/mercurial/hgweb/server.py	Sun Dec 09 19:40:54 2018 -0500
@@ -94,7 +94,7 @@
         try:
             self.do_hgweb()
         except socket.error as inst:
-            if inst[0] != errno.EPIPE:
+            if inst.errno != errno.EPIPE:
                 raise
 
     def do_POST(self):