diff --git a/tests/badserverext.py b/tests/badserverext.py
--- a/tests/badserverext.py
+++ b/tests/badserverext.py
@@ -75,7 +75,7 @@
         object.__setattr__(self, '_closeaftersendbytes', closeaftersendbytes)
 
     def __getattribute__(self, name):
-        if name in ('makefile',):
+        if name in ('makefile', 'sendall', '_writelog'):
             return object.__getattribute__(self, name)
 
         return getattr(object.__getattribute__(self, '_orig'), name)
@@ -86,6 +86,13 @@
     def __setattr__(self, name, value):
         setattr(object.__getattribute__(self, '_orig'), name, value)
 
+    def _writelog(self, msg):
+        msg = msg.replace(b'\r', b'\\r').replace(b'\n', b'\\n')
+
+        object.__getattribute__(self, '_logfp').write(msg)
+        object.__getattribute__(self, '_logfp').write(b'\n')
+        object.__getattribute__(self, '_logfp').flush()
+
     def makefile(self, mode, bufsize):
         f = object.__getattribute__(self, '_orig').makefile(mode, bufsize)
 
@@ -99,6 +106,38 @@
                                closeafterrecvbytes=closeafterrecvbytes,
                                closeaftersendbytes=closeaftersendbytes)
 
+    def sendall(self, data, flags=0):
+        remaining = object.__getattribute__(self, '_closeaftersendbytes')
+
+        # No read limit. Call original function.
+        if not remaining:
+            result = object.__getattribute__(self, '_orig').sendall(data, flags)
+            self._writelog(b'sendall(%d) -> %s' % (len(data), data))
+            return result
+
+        if len(data) > remaining:
+            newdata = data[0:remaining]
+        else:
+            newdata = data
+
+        remaining -= len(newdata)
+
+        result = object.__getattribute__(self, '_orig').sendall(newdata, flags)
+
+        self._writelog(b'sendall(%d from %d) -> (%d) %s' % (
+            len(newdata), len(data), remaining, newdata))
+
+        object.__setattr__(self, '_closeaftersendbytes', remaining)
+
+        if remaining <= 0:
+            self._writelog(b'write limit reached; closing socket')
+            object.__getattribute__(self, '_orig').shutdown(socket.SHUT_RDWR)
+
+            raise Exception('connection closed after sending N bytes')
+
+        return result
+
+
 # We can't adjust __class__ on socket._fileobject, so define a proxy.
 class fileobjectproxy(object):
     __slots__ = (
diff --git a/tests/test-http-bad-server.t b/tests/test-http-bad-server.t
--- a/tests/test-http-bad-server.t
+++ b/tests/test-http-bad-server.t
@@ -116,13 +116,15 @@
   readline(115 from *) -> (*) host: localhost:$HGPORT\r\n (glob)
   readline(* from *) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(* from *) -> (2) \r\n (glob)
-  write(36) -> HTTP/1.1 200 Script output follows\r\n
-  write(23) -> Server: badhttpserver\r\n
-  write(37) -> Date: $HTTP_DATE$\r\n
-  write(41) -> Content-Type: application/mercurial-0.1\r\n
-  write(21) -> Content-Length: 450\r\n
-  write(2) -> \r\n
-  write(450) -> batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  sendall(160) -> HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 450\r\n\r\n (py3 !)
+  sendall(450) -> batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py3 !)
+  write(36) -> HTTP/1.1 200 Script output follows\r\n (no-py3 !)
+  write(23) -> Server: badhttpserver\r\n (no-py3 !)
+  write(37) -> Date: $HTTP_DATE$\r\n (no-py3 !)
+  write(41) -> Content-Type: application/mercurial-0.1\r\n (no-py3 !)
+  write(21) -> Content-Length: 450\r\n (no-py3 !)
+  write(2) -> \r\n (no-py3 !)
+  write(450) -> batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (no-py3 !)
   readline(4? from 65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n (glob)
   readline(1? from *) -> (1?) Accept-Encoding* (glob)
   read limit reached; closing socket
@@ -157,13 +159,15 @@
   readline(213 from *) -> (*) host: localhost:$HGPORT\r\n (glob)
   readline(* from *) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(* from *) -> (2) \r\n (glob)
-  write(36) -> HTTP/1.1 200 Script output follows\r\n
-  write(23) -> Server: badhttpserver\r\n
-  write(37) -> Date: $HTTP_DATE$\r\n
-  write(41) -> Content-Type: application/mercurial-0.1\r\n
-  write(21) -> Content-Length: 450\r\n
-  write(2) -> \r\n
-  write(450) -> batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  sendall(160) -> HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 450\r\n\r\n (py3 !)
+  sendall(450) -> batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py3 !)
+  write(36) -> HTTP/1.1 200 Script output follows\r\n (no-py3 !)
+  write(23) -> Server: badhttpserver\r\n (no-py3 !)
+  write(37) -> Date: $HTTP_DATE$\r\n (no-py3 !)
+  write(41) -> Content-Type: application/mercurial-0.1\r\n (no-py3 !)
+  write(21) -> Content-Length: 450\r\n (no-py3 !)
+  write(2) -> \r\n (no-py3 !)
+  write(450) -> batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (no-py3 !)
   readline(13? from 65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n (glob)
   readline(1?? from *) -> (27) Accept-Encoding: identity\r\n (glob)
   readline(8? from *) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n (glob)
@@ -179,13 +183,15 @@
   readline(98 from *) -> (*) host: localhost:$HGPORT\r\n (glob)
   readline(* from *) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(* from *) -> (2) \r\n (glob)
-  write(36) -> HTTP/1.1 200 Script output follows\r\n
-  write(23) -> Server: badhttpserver\r\n
-  write(37) -> Date: $HTTP_DATE$\r\n
-  write(41) -> Content-Type: application/mercurial-0.1\r\n
-  write(20) -> Content-Length: 42\r\n
-  write(2) -> \r\n
-  write(42) -> 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n;
+  sendall(159) -> HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 42\r\n\r\n (py3 !)
+  sendall(42) -> 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n; (py3 !)
+  write(36) -> HTTP/1.1 200 Script output follows\r\n (no-py3 !)
+  write(23) -> Server: badhttpserver\r\n (no-py3 !)
+  write(37) -> Date: $HTTP_DATE$\r\n (no-py3 !)
+  write(41) -> Content-Type: application/mercurial-0.1\r\n (no-py3 !)
+  write(20) -> Content-Length: 42\r\n (no-py3 !)
+  write(2) -> \r\n (no-py3 !)
+  write(42) -> 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n; (no-py3 !)
   readline(* from 65537) -> (*) GET /?cmd=getbundle HTTP* (glob)
   read limit reached; closing socket
   readline(304 from 65537) -> (30) GET /?cmd=getbundle HTTP/1.1\r\n
@@ -214,13 +220,15 @@
   readline(234 from *) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(* from *) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(* from *) -> (2) \r\n (glob)
-  write(36) -> HTTP/1.1 200 Script output follows\r\n
-  write(23) -> Server: badhttpserver\r\n
-  write(37) -> Date: $HTTP_DATE$\r\n
-  write(41) -> Content-Type: application/mercurial-0.1\r\n
-  write(21) -> Content-Length: 463\r\n
-  write(2) -> \r\n
-  write(463) -> batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx httppostargs known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  sendall(160) -> HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 463\r\n\r\n (py3 !)
+  sendall(463) -> batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx httppostargs known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py3 !)
+  write(36) -> HTTP/1.1 200 Script output follows\r\n (no-py3 !)
+  write(23) -> Server: badhttpserver\r\n (no-py3 !)
+  write(37) -> Date: $HTTP_DATE$\r\n (no-py3 !)
+  write(41) -> Content-Type: application/mercurial-0.1\r\n (no-py3 !)
+  write(21) -> Content-Length: 463\r\n (no-py3 !)
+  write(2) -> \r\n (no-py3 !)
+  write(463) -> batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx httppostargs known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (no-py3 !)
   readline(1?? from 65537) -> (27) POST /?cmd=batch HTTP/1.1\r\n (glob)
   readline(1?? from *) -> (27) Accept-Encoding: identity\r\n (glob)
   readline(1?? from *) -> (41) content-type: application/mercurial-0.1\r\n (glob)
@@ -245,7 +253,7 @@
   Traceback (most recent call last):
   Exception: connection closed after receiving N bytes
   
-  write(36) -> HTTP/1.1 500 Internal Server Error\r\n
+  write(36) -> HTTP/1.1 500 Internal Server Error\r\n (no-py3 !)
 
   $ rm -f error.log
 
@@ -269,13 +277,14 @@
   readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(*) -> (2) \r\n (glob)
-  write(1 from 36) -> (0) H
+  sendall(1 from 160) -> (0) H (py3 !)
+  write(1 from 36) -> (0) H (no-py3 !)
   write limit reached; closing socket
   $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=capabilities': (glob)
   Traceback (most recent call last):
   Exception: connection closed after sending N bytes
   
-  write(36) -> HTTP/1.1 500 Internal Server Error\r\n
+  write(36) -> HTTP/1.1 500 Internal Server Error\r\n (no-py3 !)
 
   $ rm -f error.log
 
@@ -298,13 +307,15 @@
   readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(*) -> (2) \r\n (glob)
-  write(36 from 36) -> (144) HTTP/1.1 200 Script output follows\r\n
-  write(23 from 23) -> (121) Server: badhttpserver\r\n
-  write(37 from 37) -> (84) Date: $HTTP_DATE$\r\n
-  write(41 from 41) -> (43) Content-Type: application/mercurial-0.1\r\n
-  write(21 from 21) -> (22) Content-Length: 450\r\n
-  write(2 from 2) -> (20) \r\n
-  write(20 from 450) -> (0) batch branchmap bund
+  sendall(160 from 160) -> (20) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 450\r\n\r\n (py3 !)
+  sendall(20 from 450) -> (0) batch branchmap bund (py3 !)
+  write(36 from 36) -> (144) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
+  write(23 from 23) -> (121) Server: badhttpserver\r\n (no-py3 !)
+  write(37 from 37) -> (84) Date: $HTTP_DATE$\r\n (no-py3 !)
+  write(41 from 41) -> (43) Content-Type: application/mercurial-0.1\r\n (no-py3 !)
+  write(21 from 21) -> (22) Content-Length: 450\r\n (no-py3 !)
+  write(2 from 2) -> (20) \r\n (no-py3 !)
+  write(20 from 450) -> (0) batch branchmap bund (no-py3 !)
   write limit reached; closing socket
   $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=capabilities': (glob)
   Traceback (most recent call last):
@@ -337,13 +348,15 @@
   readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(*) -> (2) \r\n (glob)
-  write(36 from 36) -> (692) HTTP/1.1 200 Script output follows\r\n
-  write(23 from 23) -> (669) Server: badhttpserver\r\n
-  write(37 from 37) -> (632) Date: $HTTP_DATE$\r\n
-  write(41 from 41) -> (591) Content-Type: application/mercurial-0.1\r\n
-  write(21 from 21) -> (570) Content-Length: 450\r\n
-  write(2 from 2) -> (568) \r\n
-  write(450 from 450) -> (118) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  sendall(160 from 160) -> (568) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 450\r\n\r\n (py3 !)
+  sendall(450 from 450) -> (118) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py3 !)
+  write(36 from 36) -> (692) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
+  write(23 from 23) -> (669) Server: badhttpserver\r\n (no-py3 !)
+  write(37 from 37) -> (632) Date: $HTTP_DATE$\r\n (no-py3 !)
+  write(41 from 41) -> (591) Content-Type: application/mercurial-0.1\r\n (no-py3 !)
+  write(21 from 21) -> (570) Content-Length: 450\r\n (no-py3 !)
+  write(2 from 2) -> (568) \r\n (no-py3 !)
+  write(450 from 450) -> (118) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (no-py3 !)
   readline(65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n
   readline(*) -> (27) Accept-Encoding: identity\r\n (glob)
   readline(*) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n (glob)
@@ -353,16 +366,17 @@
   readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(*) -> (2) \r\n (glob)
-  write(36 from 36) -> (82) HTTP/1.1 200 Script output follows\r\n
-  write(23 from 23) -> (59) Server: badhttpserver\r\n
-  write(37 from 37) -> (22) Date: $HTTP_DATE$\r\n
-  write(22 from 41) -> (0) Content-Type: applicat
+  sendall(118 from 159) -> (0) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: applicat (py3 !)
+  write(36 from 36) -> (82) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
+  write(23 from 23) -> (59) Server: badhttpserver\r\n (no-py3 !)
+  write(37 from 37) -> (22) Date: $HTTP_DATE$\r\n (no-py3 !)
+  write(22 from 41) -> (0) Content-Type: applicat (no-py3 !)
   write limit reached; closing socket
   $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=batch': (glob)
   Traceback (most recent call last):
   Exception: connection closed after sending N bytes
   
-  write(36) -> HTTP/1.1 500 Internal Server Error\r\n
+  write(36) -> HTTP/1.1 500 Internal Server Error\r\n (no-py3 !)
 
   $ rm -f error.log
 
@@ -389,13 +403,15 @@
   readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(*) -> (2) \r\n (glob)
-  write(36 from 36) -> (757) HTTP/1.1 200 Script output follows\r\n
-  write(23 from 23) -> (734) Server: badhttpserver\r\n
-  write(37 from 37) -> (697) Date: $HTTP_DATE$\r\n
-  write(41 from 41) -> (656) Content-Type: application/mercurial-0.1\r\n
-  write(21 from 21) -> (635) Content-Length: 450\r\n
-  write(2 from 2) -> (633) \r\n
-  write(450 from 450) -> (183) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  sendall(160 from 160) -> (633) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 450\r\n\r\n (py3 !)
+  sendall(450 from 450) -> (183) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py3 !)
+  write(36 from 36) -> (757) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
+  write(23 from 23) -> (734) Server: badhttpserver\r\n (no-py3 !)
+  write(37 from 37) -> (697) Date: $HTTP_DATE$\r\n (no-py3 !)
+  write(41 from 41) -> (656) Content-Type: application/mercurial-0.1\r\n (no-py3 !)
+  write(21 from 21) -> (635) Content-Length: 450\r\n (no-py3 !)
+  write(2 from 2) -> (633) \r\n (no-py3 !)
+  write(450 from 450) -> (183) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (no-py3 !)
   readline(65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n
   readline(*) -> (27) Accept-Encoding: identity\r\n (glob)
   readline(*) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n (glob)
@@ -405,13 +421,15 @@
   readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(*) -> (2) \r\n (glob)
-  write(36 from 36) -> (147) HTTP/1.1 200 Script output follows\r\n
-  write(23 from 23) -> (124) Server: badhttpserver\r\n
-  write(37 from 37) -> (87) Date: $HTTP_DATE$\r\n
-  write(41 from 41) -> (46) Content-Type: application/mercurial-0.1\r\n
-  write(20 from 20) -> (26) Content-Length: 42\r\n
-  write(2 from 2) -> (24) \r\n
-  write(24 from 42) -> (0) 96ee1d7354c4ad7372047672
+  sendall(159 from 159) -> (24) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 42\r\n\r\n (py3 !)
+  sendall(24 from 42) -> (0) 96ee1d7354c4ad7372047672 (py3 !)
+  write(36 from 36) -> (147) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
+  write(23 from 23) -> (124) Server: badhttpserver\r\n (no-py3 !)
+  write(37 from 37) -> (87) Date: $HTTP_DATE$\r\n (no-py3 !)
+  write(41 from 41) -> (46) Content-Type: application/mercurial-0.1\r\n (no-py3 !)
+  write(20 from 20) -> (26) Content-Length: 42\r\n (no-py3 !)
+  write(2 from 2) -> (24) \r\n (no-py3 !)
+  write(24 from 42) -> (0) 96ee1d7354c4ad7372047672 (no-py3 !)
   write limit reached; closing socket
   $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=batch': (glob)
   Traceback (most recent call last):
@@ -445,13 +463,15 @@
   readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(*) -> (2) \r\n (glob)
-  write(36 from 36) -> (904) HTTP/1.1 200 Script output follows\r\n
-  write(23 from 23) -> (881) Server: badhttpserver\r\n
-  write(37 from 37) -> (844) Date: $HTTP_DATE$\r\n
-  write(41 from 41) -> (803) Content-Type: application/mercurial-0.1\r\n
-  write(21 from 21) -> (782) Content-Length: 450\r\n
-  write(2 from 2) -> (780) \r\n
-  write(450 from 450) -> (330) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  sendall(160 from 160) -> (780) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 450\r\n\r\n (py3 !)
+  sendall(450 from 450) -> (330) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py3 !)
+  write(36 from 36) -> (904) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
+  write(23 from 23) -> (881) Server: badhttpserver\r\n (no-py3 !)
+  write(37 from 37) -> (844) Date: $HTTP_DATE$\r\n (no-py3 !)
+  write(41 from 41) -> (803) Content-Type: application/mercurial-0.1\r\n (no-py3 !)
+  write(21 from 21) -> (782) Content-Length: 450\r\n (no-py3 !)
+  write(2 from 2) -> (780) \r\n (no-py3 !)
+  write(450 from 450) -> (330) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (no-py3 !)
   readline(65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n
   readline(*) -> (27) Accept-Encoding: identity\r\n (glob)
   readline(*) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n (glob)
@@ -461,13 +481,15 @@
   readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(*) -> (2) \r\n (glob)
-  write(36 from 36) -> (294) HTTP/1.1 200 Script output follows\r\n
-  write(23 from 23) -> (271) Server: badhttpserver\r\n
-  write(37 from 37) -> (234) Date: $HTTP_DATE$\r\n
-  write(41 from 41) -> (193) Content-Type: application/mercurial-0.1\r\n
-  write(20 from 20) -> (173) Content-Length: 42\r\n
-  write(2 from 2) -> (171) \r\n
-  write(42 from 42) -> (129) 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n;
+  sendall(159 from 159) -> (171) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 42\r\n\r\n (py3 !)
+  sendall(42 from 42) -> (129) 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n; (py3 !)
+  write(36 from 36) -> (294) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
+  write(23 from 23) -> (271) Server: badhttpserver\r\n (no-py3 !)
+  write(37 from 37) -> (234) Date: $HTTP_DATE$\r\n (no-py3 !)
+  write(41 from 41) -> (193) Content-Type: application/mercurial-0.1\r\n (no-py3 !)
+  write(20 from 20) -> (173) Content-Length: 42\r\n (no-py3 !)
+  write(2 from 2) -> (171) \r\n (no-py3 !)
+  write(42 from 42) -> (129) 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n; (no-py3 !)
   readline(65537) -> (30) GET /?cmd=getbundle HTTP/1.1\r\n
   readline(*) -> (27) Accept-Encoding: identity\r\n (glob)
   readline(*) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n (glob)
@@ -477,16 +499,17 @@
   readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(*) -> (2) \r\n (glob)
-  write(36 from 36) -> (93) HTTP/1.1 200 Script output follows\r\n
-  write(23 from 23) -> (70) Server: badhttpserver\r\n
-  write(37 from 37) -> (33) Date: $HTTP_DATE$\r\n
-  write(33 from 41) -> (0) Content-Type: application/mercuri
+  sendall(129 from 167) -> (0) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercuri (py3 !)
+  write(36 from 36) -> (93) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
+  write(23 from 23) -> (70) Server: badhttpserver\r\n (no-py3 !)
+  write(37 from 37) -> (33) Date: $HTTP_DATE$\r\n (no-py3 !)
+  write(33 from 41) -> (0) Content-Type: application/mercuri (no-py3 !)
   write limit reached; closing socket
   $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
   Traceback (most recent call last):
   Exception: connection closed after sending N bytes
   
-  write(36) -> HTTP/1.1 500 Internal Server Error\r\n
+  write(36) -> HTTP/1.1 500 Internal Server Error\r\n (no-py3 !)
 
   $ rm -f error.log
 
@@ -502,11 +525,19 @@
 
   $ killdaemons.py $DAEMON_PIDS
 
+#if py3
+  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -3
+  Traceback (most recent call last):
+  Exception: connection closed after sending N bytes
+  
+
+#else
   $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -4
   Traceback (most recent call last):
   Exception: connection closed after sending N bytes
   
   write(36) -> HTTP/1.1 500 Internal Server Error\r\n
+#endif
 
   $ rm -f error.log
 
@@ -530,13 +561,15 @@
   readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(*) -> (2) \r\n (glob)
-  write(36 from 36) -> (942) HTTP/1.1 200 Script output follows\r\n
-  write(23 from 23) -> (919) Server: badhttpserver\r\n
-  write(37 from 37) -> (882) Date: $HTTP_DATE$\r\n
-  write(41 from 41) -> (841) Content-Type: application/mercurial-0.1\r\n
-  write(21 from 21) -> (820) Content-Length: 450\r\n
-  write(2 from 2) -> (818) \r\n
-  write(450 from 450) -> (368) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  sendall(160 from 160) -> (818) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 450\r\n\r\n (py3 !)
+  sendall(450 from 450) -> (368) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py3 !)
+  write(36 from 36) -> (942) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
+  write(23 from 23) -> (919) Server: badhttpserver\r\n (no-py3 !)
+  write(37 from 37) -> (882) Date: $HTTP_DATE$\r\n (no-py3 !)
+  write(41 from 41) -> (841) Content-Type: application/mercurial-0.1\r\n (no-py3 !)
+  write(21 from 21) -> (820) Content-Length: 450\r\n (no-py3 !)
+  write(2 from 2) -> (818) \r\n (no-py3 !)
+  write(450 from 450) -> (368) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (no-py3 !)
   readline(65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n
   readline(*) -> (27) Accept-Encoding: identity\r\n (glob)
   readline(*) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n (glob)
@@ -546,13 +579,15 @@
   readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(*) -> (2) \r\n (glob)
-  write(36 from 36) -> (332) HTTP/1.1 200 Script output follows\r\n
-  write(23 from 23) -> (309) Server: badhttpserver\r\n
-  write(37 from 37) -> (272) Date: $HTTP_DATE$\r\n
-  write(41 from 41) -> (231) Content-Type: application/mercurial-0.1\r\n
-  write(20 from 20) -> (211) Content-Length: 42\r\n
-  write(2 from 2) -> (209) \r\n
-  write(42 from 42) -> (167) 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n;
+  sendall(159 from 159) -> (209) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 42\r\n\r\n (py3 !)
+  sendall(42 from 42) -> (167) 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n; (py3 !)
+  write(36 from 36) -> (332) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
+  write(23 from 23) -> (309) Server: badhttpserver\r\n (no-py3 !)
+  write(37 from 37) -> (272) Date: $HTTP_DATE$\r\n (no-py3 !)
+  write(41 from 41) -> (231) Content-Type: application/mercurial-0.1\r\n (no-py3 !)
+  write(20 from 20) -> (211) Content-Length: 42\r\n (no-py3 !)
+  write(2 from 2) -> (209) \r\n (no-py3 !)
+  write(42 from 42) -> (167) 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n; (no-py3 !)
   readline(65537) -> (30) GET /?cmd=getbundle HTTP/1.1\r\n
   readline(*) -> (27) Accept-Encoding: identity\r\n (glob)
   readline(*) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n (glob)
@@ -562,18 +597,19 @@
   readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(*) -> (2) \r\n (glob)
-  write(36 from 36) -> (131) HTTP/1.1 200 Script output follows\r\n
-  write(23 from 23) -> (108) Server: badhttpserver\r\n
-  write(37 from 37) -> (71) Date: $HTTP_DATE$\r\n
-  write(41 from 41) -> (30) Content-Type: application/mercurial-0.2\r\n
-  write(28 from 28) -> (2) Transfer-Encoding: chunked\r\n
-  write(2 from 2) -> (0) \r\n
+  sendall(167 from 167) -> (0) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n (py3 !)
+  write(36 from 36) -> (131) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
+  write(23 from 23) -> (108) Server: badhttpserver\r\n (no-py3 !)
+  write(37 from 37) -> (71) Date: $HTTP_DATE$\r\n (no-py3 !)
+  write(41 from 41) -> (30) Content-Type: application/mercurial-0.2\r\n (no-py3 !)
+  write(28 from 28) -> (2) Transfer-Encoding: chunked\r\n (no-py3 !)
+  write(2 from 2) -> (0) \r\n (no-py3 !)
   write limit reached; closing socket
   $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
   Traceback (most recent call last):
   Exception: connection closed after sending N bytes
   
-  write(36) -> HTTP/1.1 500 Internal Server Error\r\n
+  write(36) -> HTTP/1.1 500 Internal Server Error\r\n (no-py3 !)
 
   $ rm -f error.log
 
@@ -597,13 +633,15 @@
   readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(*) -> (2) \r\n (glob)
-  write(36 from 36) -> (966) HTTP/1.1 200 Script output follows\r\n
-  write(23 from 23) -> (943) Server: badhttpserver\r\n
-  write(37 from 37) -> (906) Date: $HTTP_DATE$\r\n
-  write(41 from 41) -> (865) Content-Type: application/mercurial-0.1\r\n
-  write(21 from 21) -> (844) Content-Length: 450\r\n
-  write(2 from 2) -> (842) \r\n
-  write(450 from 450) -> (392) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  sendall(160 from 160) -> (842) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 450\r\n\r\n (py3 !)
+  sendall(450 from 450) -> (392) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (py3 !)
+  write(36 from 36) -> (966) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
+  write(23 from 23) -> (943) Server: badhttpserver\r\n (no-py3 !)
+  write(37 from 37) -> (906) Date: $HTTP_DATE$\r\n (no-py3 !)
+  write(41 from 41) -> (865) Content-Type: application/mercurial-0.1\r\n (no-py3 !)
+  write(21 from 21) -> (844) Content-Length: 450\r\n (no-py3 !)
+  write(2 from 2) -> (842) \r\n (no-py3 !)
+  write(450 from 450) -> (392) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (no-py3 !)
   readline(65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n
   readline(*) -> (27) Accept-Encoding: identity\r\n (glob)
   readline(*) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n (glob)
@@ -613,13 +651,15 @@
   readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(*) -> (2) \r\n (glob)
-  write(36 from 36) -> (356) HTTP/1.1 200 Script output follows\r\n
-  write(23 from 23) -> (333) Server: badhttpserver\r\n
-  write(37 from 37) -> (296) Date: $HTTP_DATE$\r\n
-  write(41 from 41) -> (255) Content-Type: application/mercurial-0.1\r\n
-  write(20 from 20) -> (235) Content-Length: 42\r\n
-  write(2 from 2) -> (233) \r\n
-  write(42 from 42) -> (191) 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n;
+  sendall(159 from 159) -> (233) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.1\r\nContent-Length: 42\r\n\r\n (py3 !)
+  sendall(42 from 42) -> (191) 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n; (py3 !)
+  write(36 from 36) -> (356) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
+  write(23 from 23) -> (333) Server: badhttpserver\r\n (no-py3 !)
+  write(37 from 37) -> (296) Date: $HTTP_DATE$\r\n (no-py3 !)
+  write(41 from 41) -> (255) Content-Type: application/mercurial-0.1\r\n (no-py3 !)
+  write(20 from 20) -> (235) Content-Length: 42\r\n (no-py3 !)
+  write(2 from 2) -> (233) \r\n (no-py3 !)
+  write(42 from 42) -> (191) 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n; (no-py3 !)
   readline(65537) -> (30) GET /?cmd=getbundle HTTP/1.1\r\n
   readline(*) -> (27) Accept-Encoding: identity\r\n (glob)
   readline(*) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n (glob)
@@ -629,21 +669,25 @@
   readline(*) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(*) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(*) -> (2) \r\n (glob)
-  write(36 from 36) -> (155) HTTP/1.1 200 Script output follows\r\n
-  write(23 from 23) -> (132) Server: badhttpserver\r\n
-  write(37 from 37) -> (95) Date: $HTTP_DATE$\r\n
-  write(41 from 41) -> (54) Content-Type: application/mercurial-0.2\r\n
-  write(28 from 28) -> (26) Transfer-Encoding: chunked\r\n
-  write(2 from 2) -> (24) \r\n
-  write(6 from 6) -> (18) 1\\r\\n\x04\\r\\n (esc)
-  write(9 from 9) -> (9) 4\r\nnone\r\n
-  write(9 from 9) -> (0) 4\r\nHG20\r\n
+  sendall(167 from 167) -> (24) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n (py3 !)
+  sendall(6 from 6) -> (18) 1\\r\\n\x04\\r\\n (esc) (py3 !)
+  sendall(9 from 9) -> (9) 4\r\nnone\r\n (py3 !)
+  sendall(9 from 9) -> (0) 4\r\nHG20\r\n (py3 !)
+  write(36 from 36) -> (155) HTTP/1.1 200 Script output follows\r\n (no-py3 !)
+  write(23 from 23) -> (132) Server: badhttpserver\r\n (no-py3 !)
+  write(37 from 37) -> (95) Date: $HTTP_DATE$\r\n (no-py3 !)
+  write(41 from 41) -> (54) Content-Type: application/mercurial-0.2\r\n (no-py3 !)
+  write(28 from 28) -> (26) Transfer-Encoding: chunked\r\n (no-py3 !)
+  write(2 from 2) -> (24) \r\n (no-py3 !)
+  write(6 from 6) -> (18) 1\\r\\n\x04\\r\\n (esc) (no-py3 !)
+  write(9 from 9) -> (9) 4\r\nnone\r\n (no-py3 !)
+  write(9 from 9) -> (0) 4\r\nHG20\r\n (no-py3 !)
   write limit reached; closing socket
   $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
   Traceback (most recent call last):
   Exception: connection closed after sending N bytes
   
-  write(27) -> 15\r\nInternal Server Error\r\n
+  write(27) -> 15\r\nInternal Server Error\r\n (no-py3 !)
 
   $ rm -f error.log
 
@@ -654,12 +698,26 @@
 
   $ hg clone http://localhost:$HGPORT/ clone
   requesting all changes
-  abort: HTTP request error (incomplete response; expected 4 bytes got 3)
+  abort: HTTP request error (incomplete response) (py3 !)
+  abort: HTTP request error (incomplete response; expected 4 bytes got 3) (no-py3 !)
   (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
+#if py3
+  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -9
+  sendall(167 from 167) -> (21) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n
+  sendall(6 from 6) -> (15) 1\\r\\n\x04\\r\\n (esc)
+  sendall(9 from 9) -> (6) 4\r\nnone\r\n
+  sendall(6 from 9) -> (0) 4\r\nHG2
+  write limit reached; closing socket
+  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
+  Traceback (most recent call last):
+  Exception: connection closed after sending N bytes
+  
+
+#else
   $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -11
   write(28 from 28) -> (23) Transfer-Encoding: chunked\r\n
   write(2 from 2) -> (21) \r\n
@@ -672,6 +730,7 @@
   Exception: connection closed after sending N bytes
   
   write(27) -> 15\r\nInternal Server Error\r\n
+#endif
 
   $ rm -f error.log
 
@@ -682,12 +741,27 @@
 
   $ hg clone http://localhost:$HGPORT/ clone
   requesting all changes
-  abort: HTTP request error (incomplete response; expected 4 bytes got 3)
+  abort: HTTP request error (incomplete response) (py3 !)
+  abort: HTTP request error (incomplete response; expected 4 bytes got 3) (no-py3 !)
   (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
+#if py3
+  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -10
+  sendall(167 from 167) -> (30) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n
+  sendall(6 from 6) -> (24) 1\\r\\n\x04\\r\\n (esc)
+  sendall(9 from 9) -> (15) 4\r\nnone\r\n
+  sendall(9 from 9) -> (6) 4\r\nHG20\r\n
+  sendall(6 from 9) -> (0) 4\\r\\n\x00\x00\x00 (esc)
+  write limit reached; closing socket
+  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
+  Traceback (most recent call last):
+  Exception: connection closed after sending N bytes
+  
+
+#else
   $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -12
   write(28 from 28) -> (32) Transfer-Encoding: chunked\r\n
   write(2 from 2) -> (30) \r\n
@@ -701,6 +775,7 @@
   Exception: connection closed after sending N bytes
   
   write(27) -> 15\r\nInternal Server Error\r\n
+#endif
 
   $ rm -f error.log
 
@@ -717,6 +792,20 @@
 
   $ killdaemons.py $DAEMON_PIDS
 
+#if py3
+  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -10
+  sendall(167 from 167) -> (33) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n
+  sendall(6 from 6) -> (27) 1\\r\\n\x04\\r\\n (esc)
+  sendall(9 from 9) -> (18) 4\r\nnone\r\n
+  sendall(9 from 9) -> (9) 4\r\nHG20\r\n
+  sendall(9 from 9) -> (0) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
+  write limit reached; closing socket
+  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
+  Traceback (most recent call last):
+  Exception: connection closed after sending N bytes
+  
+
+#else
   $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -12
   write(28 from 28) -> (35) Transfer-Encoding: chunked\r\n
   write(2 from 2) -> (33) \r\n
@@ -730,6 +819,7 @@
   Exception: connection closed after sending N bytes
   
   write(27) -> 15\r\nInternal Server Error\r\n
+#endif
 
   $ rm -f error.log
 
@@ -746,6 +836,22 @@
 
   $ killdaemons.py $DAEMON_PIDS
 
+#if py3
+  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -11
+  sendall(167 from 167) -> (42) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n
+  sendall(6 from 6) -> (36) 1\\r\\n\x04\\r\\n (esc)
+  sendall(9 from 9) -> (27) 4\r\nnone\r\n
+  sendall(9 from 9) -> (18) 4\r\nHG20\r\n
+  sendall(9 from 9) -> (9) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
+  sendall(9 from 9) -> (0) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
+  write limit reached; closing socket
+  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
+  Traceback (most recent call last):
+  Exception: connection closed after sending N bytes
+  
+
+#else
+
   $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -13
   write(28 from 28) -> (44) Transfer-Encoding: chunked\r\n
   write(2 from 2) -> (42) \r\n
@@ -760,6 +866,7 @@
   Exception: connection closed after sending N bytes
   
   write(27) -> 15\r\nInternal Server Error\r\n
+#endif
 
   $ rm -f error.log
 
@@ -779,6 +886,22 @@
 
   $ killdaemons.py $DAEMON_PIDS
 
+#if py3
+  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -12
+  sendall(167 from 167) -> (89) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n
+  sendall(6 from 6) -> (83) 1\\r\\n\x04\\r\\n (esc)
+  sendall(9 from 9) -> (74) 4\r\nnone\r\n
+  sendall(9 from 9) -> (65) 4\r\nHG20\r\n
+  sendall(9 from 9) -> (56) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
+  sendall(9 from 9) -> (47) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
+  sendall(47 from 47) -> (0) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
+  write limit reached; closing socket
+  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
+  Traceback (most recent call last):
+  Exception: connection closed after sending N bytes
+  
+
+#else
   $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -14
   write(28 from 28) -> (91) Transfer-Encoding: chunked\r\n
   write(2 from 2) -> (89) \r\n
@@ -794,6 +917,7 @@
   Exception: connection closed after sending N bytes
   
   write(27) -> 15\r\nInternal Server Error\r\n
+#endif
 
   $ rm -f error.log
 
@@ -807,12 +931,31 @@
   adding changesets
   transaction abort!
   rollback completed
-  abort: HTTP request error (incomplete response; expected 466 bytes got 7)
+  abort: HTTP request error (incomplete response) (py3 !)
+  abort: HTTP request error (incomplete response; expected 466 bytes got 7) (no-py3 !)
   (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
+#if py3
+  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -14
+  sendall(167 from 167) -> (110) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n
+  sendall(6 from 6) -> (104) 1\\r\\n\x04\\r\\n (esc)
+  sendall(9 from 9) -> (95) 4\r\nnone\r\n
+  sendall(9 from 9) -> (86) 4\r\nHG20\r\n
+  sendall(9 from 9) -> (77) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
+  sendall(9 from 9) -> (68) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
+  sendall(47 from 47) -> (21) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
+  sendall(9 from 9) -> (12) 4\\r\\n\x00\x00\x01\xd2\\r\\n (esc)
+  sendall(12 from 473) -> (0) 1d2\\r\\n\x00\x00\x00\xb2\x96\xee\x1d (esc)
+  write limit reached; closing socket
+  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
+  Traceback (most recent call last):
+  Exception: connection closed after sending N bytes
+  
+
+#else
   $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -15
   write(2 from 2) -> (110) \r\n
   write(6 from 6) -> (104) 1\\r\\n\x04\\r\\n (esc)
@@ -829,6 +972,7 @@
   Exception: connection closed after sending N bytes
   
   write(27) -> 15\r\nInternal Server Error\r\n
+#endif
 
   $ rm -f error.log
 
@@ -848,6 +992,24 @@
 
   $ killdaemons.py $DAEMON_PIDS
 
+#if py3
+  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -14
+  sendall(167 from 167) -> (571) HTTP/1.1 200 Script output follows\r\nServer: badhttpserver\r\nDate: $HTTP_DATE$\r\nContent-Type: application/mercurial-0.2\r\nTransfer-Encoding: chunked\r\n\r\n
+  sendall(6 from 6) -> (565) 1\\r\\n\x04\\r\\n (esc)
+  sendall(9 from 9) -> (556) 4\r\nnone\r\n
+  sendall(9 from 9) -> (547) 4\r\nHG20\r\n
+  sendall(9 from 9) -> (538) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
+  sendall(9 from 9) -> (529) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
+  sendall(47 from 47) -> (482) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
+  sendall(9 from 9) -> (473) 4\\r\\n\x00\x00\x01\xd2\\r\\n (esc)
+  sendall(473 from 473) -> (0) 1d2\\r\\n\x00\x00\x00\xb2\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00>6a3df4de388f3c4f8e28f4f9a814299a3cbb5f50\\ntest\\n0 0\\nfoo\\n\\ninitial\x00\x00\x00\x00\x00\x00\x00\xa1j=\xf4\xde8\x8f<O\x8e(\xf4\xf9\xa8\x14)\x9a<\xbb_P\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00-foo\x00b80de5d138758541c5f05265ad144ab9fa86d1db\\n\x00\x00\x00\x00\x00\x00\x00\x07foo\x00\x00\x00h\xb8\\r\xe5\xd18u\x85A\xc5\xf0Re\xad\x14J\xb9\xfa\x86\xd1\xdb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\\r\\n (esc)
+  write limit reached; closing socket
+  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
+  Traceback (most recent call last):
+  Exception: connection closed after sending N bytes
+  
+
+#else
   $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -16
   write(28 from 28) -> (573) Transfer-Encoding: chunked\r\n
   write(2 from 2) -> (571) \r\n
@@ -865,6 +1027,7 @@
   Exception: connection closed after sending N bytes
   
   write(27) -> 15\r\nInternal Server Error\r\n
+#endif
 
   $ rm -f error.log
 
@@ -881,12 +1044,33 @@
   added 1 changesets with 1 changes to 1 files
   transaction abort!
   rollback completed
-  abort: HTTP request error (incomplete response; expected 32 bytes got 9)
+  abort: HTTP request error (incomplete response) (py3 !)
+  abort: HTTP request error (incomplete response; expected 32 bytes got 9) (no-py3 !)
   (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
+#if py3
+  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -16
+  sendall(6 from 6) -> (596) 1\\r\\n\x04\\r\\n (esc)
+  sendall(9 from 9) -> (587) 4\r\nnone\r\n
+  sendall(9 from 9) -> (578) 4\r\nHG20\r\n
+  sendall(9 from 9) -> (569) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
+  sendall(9 from 9) -> (560) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
+  sendall(47 from 47) -> (513) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
+  sendall(9 from 9) -> (504) 4\\r\\n\x00\x00\x01\xd2\\r\\n (esc)
+  sendall(473 from 473) -> (31) 1d2\\r\\n\x00\x00\x00\xb2\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00>6a3df4de388f3c4f8e28f4f9a814299a3cbb5f50\\ntest\\n0 0\\nfoo\\n\\ninitial\x00\x00\x00\x00\x00\x00\x00\xa1j=\xf4\xde8\x8f<O\x8e(\xf4\xf9\xa8\x14)\x9a<\xbb_P\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00-foo\x00b80de5d138758541c5f05265ad144ab9fa86d1db\\n\x00\x00\x00\x00\x00\x00\x00\x07foo\x00\x00\x00h\xb8\\r\xe5\xd18u\x85A\xc5\xf0Re\xad\x14J\xb9\xfa\x86\xd1\xdb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\\r\\n (esc)
+  sendall(9 from 9) -> (22) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
+  sendall(9 from 9) -> (13) 4\\r\\n\x00\x00\x00 \\r\\n (esc)
+  sendall(13 from 38) -> (0) 20\\r\\n\x08LISTKEYS (esc)
+  write limit reached; closing socket
+  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
+  Traceback (most recent call last):
+  Exception: connection closed after sending N bytes
+  
+
+#else
   $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -17
   write(6 from 6) -> (596) 1\\r\\n\x04\\r\\n (esc)
   write(9 from 9) -> (587) 4\r\nnone\r\n
@@ -905,6 +1089,7 @@
   Exception: connection closed after sending N bytes
   
   write(27) -> 15\r\nInternal Server Error\r\n
+#endif
 
   $ rm -f error.log
 
@@ -927,6 +1112,35 @@
 
   $ killdaemons.py $DAEMON_PIDS
 
+#if py3
+  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -25
+  sendall(9 from 9) -> (851) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
+  sendall(9 from 9) -> (842) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
+  sendall(47 from 47) -> (795) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
+  sendall(9 from 9) -> (786) 4\\r\\n\x00\x00\x01\xd2\\r\\n (esc)
+  sendall(473 from 473) -> (313) 1d2\\r\\n\x00\x00\x00\xb2\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00>6a3df4de388f3c4f8e28f4f9a814299a3cbb5f50\\ntest\\n0 0\\nfoo\\n\\ninitial\x00\x00\x00\x00\x00\x00\x00\xa1j=\xf4\xde8\x8f<O\x8e(\xf4\xf9\xa8\x14)\x9a<\xbb_P\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00-foo\x00b80de5d138758541c5f05265ad144ab9fa86d1db\\n\x00\x00\x00\x00\x00\x00\x00\x07foo\x00\x00\x00h\xb8\\r\xe5\xd18u\x85A\xc5\xf0Re\xad\x14J\xb9\xfa\x86\xd1\xdb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\\r\\n (esc)
+  sendall(9 from 9) -> (304) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
+  sendall(9 from 9) -> (295) 4\\r\\n\x00\x00\x00 \\r\\n (esc)
+  sendall(38 from 38) -> (257) 20\\r\\n\x08LISTKEYS\x00\x00\x00\x01\x01\x00	\x06namespacephases\\r\\n (esc)
+  sendall(9 from 9) -> (248) 4\\r\\n\x00\x00\x00:\\r\\n (esc)
+  sendall(64 from 64) -> (184) 3a\r\n96ee1d7354c4ad7372047672c36a1f561e3a6a4c	1\npublishing	True\r\n
+  sendall(9 from 9) -> (175) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
+  sendall(9 from 9) -> (166) 4\\r\\n\x00\x00\x00#\\r\\n (esc)
+  sendall(41 from 41) -> (125) 23\\r\\n\x08LISTKEYS\x00\x00\x00\x02\x01\x00		namespacebookmarks\\r\\n (esc)
+  sendall(9 from 9) -> (116) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
+  sendall(9 from 9) -> (107) 4\\r\\n\x00\x00\x00\x1d\\r\\n (esc)
+  sendall(35 from 35) -> (72) 1d\\r\\n\x16cache:rev-branch-cache\x00\x00\x00\x03\x00\x00\\r\\n (esc)
+  sendall(9 from 9) -> (63) 4\\r\\n\x00\x00\x00'\\r\\n (esc)
+  sendall(45 from 45) -> (18) 27\\r\\n\x00\x00\x00\x07\x00\x00\x00\x01\x00\x00\x00\x00default\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\\r\\n (esc)
+  sendall(9 from 9) -> (9) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
+  sendall(9 from 9) -> (0) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
+  write limit reached; closing socket
+  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
+  Traceback (most recent call last):
+  Exception: connection closed after sending N bytes
+  
+
+#else
   $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -26
   write(9 from 9) -> (851) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
   write(9 from 9) -> (842) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
@@ -954,6 +1168,7 @@
   Exception: connection closed after sending N bytes
   
   write(27) -> 15\r\nInternal Server Error\r\n
+#endif
 
   $ rm -f error.log
   $ rm -rf clone
@@ -975,6 +1190,36 @@
 
   $ killdaemons.py $DAEMON_PIDS
 
+#if py3
+  $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -26
+  sendall(9 from 9) -> (854) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
+  sendall(9 from 9) -> (845) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
+  sendall(47 from 47) -> (798) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
+  sendall(9 from 9) -> (789) 4\\r\\n\x00\x00\x01\xd2\\r\\n (esc)
+  sendall(473 from 473) -> (316) 1d2\\r\\n\x00\x00\x00\xb2\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00>6a3df4de388f3c4f8e28f4f9a814299a3cbb5f50\\ntest\\n0 0\\nfoo\\n\\ninitial\x00\x00\x00\x00\x00\x00\x00\xa1j=\xf4\xde8\x8f<O\x8e(\xf4\xf9\xa8\x14)\x9a<\xbb_P\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00-foo\x00b80de5d138758541c5f05265ad144ab9fa86d1db\\n\x00\x00\x00\x00\x00\x00\x00\x07foo\x00\x00\x00h\xb8\\r\xe5\xd18u\x85A\xc5\xf0Re\xad\x14J\xb9\xfa\x86\xd1\xdb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\\r\\n (esc)
+  sendall(9 from 9) -> (307) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
+  sendall(9 from 9) -> (298) 4\\r\\n\x00\x00\x00 \\r\\n (esc)
+  sendall(38 from 38) -> (260) 20\\r\\n\x08LISTKEYS\x00\x00\x00\x01\x01\x00	\x06namespacephases\\r\\n (esc)
+  sendall(9 from 9) -> (251) 4\\r\\n\x00\x00\x00:\\r\\n (esc)
+  sendall(64 from 64) -> (187) 3a\r\n96ee1d7354c4ad7372047672c36a1f561e3a6a4c	1\npublishing	True\r\n
+  sendall(9 from 9) -> (178) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
+  sendall(9 from 9) -> (169) 4\\r\\n\x00\x00\x00#\\r\\n (esc)
+  sendall(41 from 41) -> (128) 23\\r\\n\x08LISTKEYS\x00\x00\x00\x02\x01\x00		namespacebookmarks\\r\\n (esc)
+  sendall(9 from 9) -> (119) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
+  sendall(9 from 9) -> (110) 4\\r\\n\x00\x00\x00\x1d\\r\\n (esc)
+  sendall(35 from 35) -> (75) 1d\\r\\n\x16cache:rev-branch-cache\x00\x00\x00\x03\x00\x00\\r\\n (esc)
+  sendall(9 from 9) -> (66) 4\\r\\n\x00\x00\x00'\\r\\n (esc)
+  sendall(45 from 45) -> (21) 27\\r\\n\x00\x00\x00\x07\x00\x00\x00\x01\x00\x00\x00\x00default\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\\r\\n (esc)
+  sendall(9 from 9) -> (12) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
+  sendall(9 from 9) -> (3) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
+  sendall(3 from 5) -> (0) 0\r\n
+  write limit reached; closing socket
+  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=getbundle': (glob)
+  Traceback (most recent call last):
+  Exception: connection closed after sending N bytes
+  
+
+#else
   $ "$PYTHON" $TESTDIR/filtertraceback.py < error.log | tail -27
   write(9 from 9) -> (854) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
   write(9 from 9) -> (845) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
@@ -1003,6 +1248,7 @@
   Exception: connection closed after sending N bytes
   
   write(27) -> 15\r\nInternal Server Error\r\n
+#endif
 
   $ rm -f error.log
   $ rm -rf clone