Index: Lib/test/regrtest.py
===================================================================
--- Lib/test/regrtest.py	(revision 79494)
+++ Lib/test/regrtest.py	(working copy)
@@ -373,6 +373,7 @@
     skipped = []
     resource_denieds = []
     environment_changed = []
+    interrupted = False
 
     if findleaks:
         try:
@@ -539,6 +540,7 @@
                     raise KeyboardInterrupt   # What else?
                 accumulate_result(test, result)
         except KeyboardInterrupt:
+            interrupted = True
             pending.close()
         for worker in workers:
             worker.join()
@@ -561,6 +563,7 @@
                         print "Re-running test %r in verbose mode" % test
                         runtest(test, True, quiet, testdir, huntrleaks)
                 except KeyboardInterrupt:
+                    interrupted = True
                     # print a newline separate from the ^C
                     print
                     break
@@ -580,6 +583,8 @@
                 if module not in save_modules and module.startswith("test."):
                     test_support.unload(module)
 
+    if interrupted:
+        print "Test suite interrupted by signal SIGINT."
     if good and not quiet:
         if not bad and not skipped and len(good) > 1:
             print "All",
@@ -646,7 +651,7 @@
     if runleaks:
         os.system("leaks %d" % os.getpid())
 
-    sys.exit(len(bad) > 0)
+    sys.exit(len(bad) > 0 or interrupted)
 
 
 STDTESTS = [