diff -r 6b70f16d585a Lib/tarfile.py
--- a/Lib/tarfile.py	Wed Apr 15 10:27:58 2015 -0400
+++ b/Lib/tarfile.py	Wed Apr 15 13:54:14 2015 -0500
@@ -64,7 +64,11 @@
     pass
 
 # from tarfile import *
-__all__ = ["TarFile", "TarInfo", "is_tarfile", "TarError"]
+__all__ = ["TarFile", "TarInfo", "is_tarfile", "TarError",
+           "TarIter", "ReadError", "CompressionError", "StreamError",
+           "ExtractError", "HeaderError", "SubsequentHeaderError",
+           "InvalidHeaderError", "EmptyHeaderError", "EOFHeaderError",
+           "TruncatedHeaderError", "main", "open"]
 
 #---------------------------------------------------------
 # tar constants
diff -r 6b70f16d585a Lib/test/test_tarfile.py
--- a/Lib/test/test_tarfile.py	Wed Apr 15 10:27:58 2015 -0400
+++ b/Lib/test/test_tarfile.py	Wed Apr 15 13:54:14 2015 -0500
@@ -1962,6 +1962,18 @@
         with self.assertRaises(ValueError):
             tarfile.itn(0x10000000000, 6, tarfile.GNU_FORMAT)
 
+    def test_all(self):
+        expected = set()
+        blacklist = ('nts', 'nti', 'itn', 'stn', 'copyfileobj', 'calc_chksums',
+                     'filemode', 'ExFileObject')
+        for name in dir(tarfile):
+            if name.startswith('_') or name in blacklist:
+                continue
+            module_object = getattr(tarfile, name)
+            if getattr(module_object, '__module__', None) == 'tarfile':
+                expected.add(name)
+        self.assertCountEqual(tarfile.__all__, expected)
+
 
 class CommandLineTest(unittest.TestCase):