diff -r 44378796c5e5 -r 348352658e4b mercurial/keepalive.py
--- a/mercurial/keepalive.py	Sun Dec 09 16:49:55 2018 +0100
+++ b/mercurial/keepalive.py	Sun Dec 09 19:40:54 2018 -0500
@@ -636,7 +636,7 @@
             self.sentbytescount += len(str)
     except socket.error as v:
         reraise = True
-        if v[0] == errno.EPIPE:      # Broken pipe
+        if v.args[0] == errno.EPIPE:      # Broken pipe
             if self._HTTPConnection__state == httplib._CS_REQ_SENT:
                 self._broken_pipe_resp = None
                 self._broken_pipe_resp = self.getresponse()