diff --git a/Lib/test/test_long.py b/Lib/test/test_long.py
index 573ef75f220..5e98225c3a0 100644
--- a/Lib/test/test_long.py
+++ b/Lib/test/test_long.py
@@ -326,7 +326,7 @@ def checkit(*args):
                                 pass
                             else:
                                 raise TestFailed("pow%r should have raised "
-                                "TypeError" % ((longx, longy, long(z))))
+                                "TypeError" % ((longx, longy, long(z)),))
 
 # ---------------------------------------- tests of long->float overflow
 
diff --git a/Lib/test/test_pow.py b/Lib/test/test_pow.py
index 64c58900504..7a38f678d2c 100644
--- a/Lib/test/test_pow.py
+++ b/Lib/test/test_pow.py
@@ -70,8 +70,8 @@ def powtest(type):
                         except TypeError:
                             pass
                         else:
-                            raise TestFailed("expected TypeError from "
-                                "pow%r" % ((type(i), j, k)))
+                            raise ValueError, "expected TypeError from " + \
+                                "pow%r" % ((type(i), j, k),)
                         continue
                     if compare(pow(type(i),j,k), pow(type(i),j)% type(k)):
                         raise ValueError, "pow(" +str(i)+ "," +str(j)+ \