Fixed Py3k warnings in tests for issue #24731.
diff --git a/Lib/test/test_compile.py b/Lib/test/test_compile.py
index 6a6ef0e..c9f2835 100644
--- a/Lib/test/test_compile.py
+++ b/Lib/test/test_compile.py
@@ -576,14 +576,15 @@
         # objects are accepted, which could be not terminated.
         with self.assertRaisesRegexp(TypeError, "without null bytes"):
             compile(u"123\x00", "<dummy>", "eval")
-        with self.assertRaisesRegexp(TypeError, "without null bytes"):
-            compile(buffer("123\x00"), "<dummy>", "eval")
-        code = compile(buffer("123\x00", 1, 2), "<dummy>", "eval")
-        self.assertEqual(eval(code), 23)
-        code = compile(buffer("1234", 1, 2), "<dummy>", "eval")
-        self.assertEqual(eval(code), 23)
-        code = compile(buffer("$23$", 1, 2), "<dummy>", "eval")
-        self.assertEqual(eval(code), 23)
+        with test_support.check_py3k_warnings():
+            with self.assertRaisesRegexp(TypeError, "without null bytes"):
+                compile(buffer("123\x00"), "<dummy>", "eval")
+            code = compile(buffer("123\x00", 1, 2), "<dummy>", "eval")
+            self.assertEqual(eval(code), 23)
+            code = compile(buffer("1234", 1, 2), "<dummy>", "eval")
+            self.assertEqual(eval(code), 23)
+            code = compile(buffer("$23$", 1, 2), "<dummy>", "eval")
+            self.assertEqual(eval(code), 23)
 
 class TestStackSize(unittest.TestCase):
     # These tests check that the computed stack size for a code object
diff --git a/Lib/test/test_float.py b/Lib/test/test_float.py
index 4ec894c..c917c1e 100644
--- a/Lib/test/test_float.py
+++ b/Lib/test/test_float.py
@@ -71,7 +71,8 @@
             factories += [unicode, CustomUnicode]
 
         for f in factories:
-            x = f(" 3.14  ")
+            with test_support.check_py3k_warnings(quiet=True):
+                x = f(" 3.14  ")
             msg = 'x has value %s and type %s' % (x, type(x).__name__)
             try:
                 self.assertEqual(float(x), 3.14, msg=msg)
@@ -79,15 +80,17 @@
                 raise AssertionError('For %s got TypeError: %s' %
                                      (type(x).__name__, err))
             errmsg = "could not convert"
-            with self.assertRaisesRegexp(ValueError, errmsg, msg=msg):
+            with self.assertRaisesRegexp(ValueError, errmsg, msg=msg), \
+                 test_support.check_py3k_warnings(quiet=True):
                 float(f('A' * 0x10))
 
     def test_float_buffer(self):
-        self.assertEqual(float(buffer('12.3', 1, 3)), 2.3)
-        self.assertEqual(float(buffer('12.3\x00', 1, 3)), 2.3)
-        self.assertEqual(float(buffer('12.3 ', 1, 3)), 2.3)
-        self.assertEqual(float(buffer('12.3A', 1, 3)), 2.3)
-        self.assertEqual(float(buffer('12.34', 1, 3)), 2.3)
+        with test_support.check_py3k_warnings():
+            self.assertEqual(float(buffer('12.3', 1, 3)), 2.3)
+            self.assertEqual(float(buffer('12.3\x00', 1, 3)), 2.3)
+            self.assertEqual(float(buffer('12.3 ', 1, 3)), 2.3)
+            self.assertEqual(float(buffer('12.3A', 1, 3)), 2.3)
+            self.assertEqual(float(buffer('12.34', 1, 3)), 2.3)
 
     def check_conversion_to_int(self, x):
         """Check that int(x) has the correct value and type, for a float x."""
diff --git a/Lib/test/test_int.py b/Lib/test/test_int.py
index 0dd8efc..ea5c0e3 100644
--- a/Lib/test/test_int.py
+++ b/Lib/test/test_int.py
@@ -351,7 +351,8 @@
             factories += [unicode, CustomUnicode]
 
         for f in factories:
-            x = f('100')
+            with test_support.check_py3k_warnings(quiet=True):
+                x = f('100')
             msg = 'x has value %s and type %s' % (x, type(x).__name__)
             try:
                 self.assertEqual(int(x), 100, msg=msg)
@@ -365,15 +366,17 @@
                 with self.assertRaisesRegexp(TypeError, errmsg, msg=msg):
                     int(x, 2)
             errmsg = 'invalid literal'
-            with self.assertRaisesRegexp(ValueError, errmsg, msg=msg):
+            with self.assertRaisesRegexp(ValueError, errmsg, msg=msg), \
+                 test_support.check_py3k_warnings(quiet=True):
                 int(f('A' * 0x10))
 
     def test_int_buffer(self):
-        self.assertEqual(int(buffer('123', 1, 2)), 23)
-        self.assertEqual(int(buffer('123\x00', 1, 2)), 23)
-        self.assertEqual(int(buffer('123 ', 1, 2)), 23)
-        self.assertEqual(int(buffer('123A', 1, 2)), 23)
-        self.assertEqual(int(buffer('1234', 1, 2)), 23)
+        with test_support.check_py3k_warnings():
+            self.assertEqual(int(buffer('123', 1, 2)), 23)
+            self.assertEqual(int(buffer('123\x00', 1, 2)), 23)
+            self.assertEqual(int(buffer('123 ', 1, 2)), 23)
+            self.assertEqual(int(buffer('123A', 1, 2)), 23)
+            self.assertEqual(int(buffer('1234', 1, 2)), 23)
 
     def test_error_on_string_float_for_x(self):
         self.assertRaises(ValueError, int, '1.2')