diff --git a/run_tests b/run_tests
index b583af3b..75663d15 100755
--- a/run_tests
+++ b/run_tests
@@ -28,10 +28,6 @@ NOCOVERAGE="${NOCOVERAGE:-}"
 NOCOVERAGE_ERASE="${NOCOVERAGE_ERASE:-$NOCOVERAGE}"
 NOCOVERAGE_REPORT="${NOCOVERAGE_REPORT:-$NOCOVERAGE}"
 
-if [ ! "$UNIT2" ]; then
-    UNIT2="$(which unit2)"
-fi
-
 if [ ! "$NOCOVERAGE_ERASE" ]; then
     coverage erase
 fi
@@ -39,12 +35,12 @@ fi
 # First run overwites coverage output.
 [ "$SKIP_MITOGEN" ] || {
     if [ ! "$NOCOVERAGE" ]; then
-        coverage run -a "${UNIT2}" discover \
+        coverage run -a -m unittest discover \
             --start-directory "tests" \
             --pattern '*_test.py' \
             "$@"
     else
-        "${UNIT2}" discover \
+        python -m unittest discover \
             --start-directory "tests" \
             --pattern '*_test.py' \
             "$@"
@@ -60,12 +56,12 @@ fi
 [ "$SKIP_ANSIBLE" ] || {
     export PYTHONPATH=`pwd`/tests:$PYTHONPATH
     if [ ! "$NOCOVERAGE" ]; then
-        coverage run -a "${UNIT2}" discover \
+        coverage run -a -m unittest discover \
             --start-directory "tests/ansible" \
             --pattern '*_test.py' \
             "$@"
     else
-        "${UNIT2}" discover \
+        python -m unittest discover \
             --start-directory "tests/ansible" \
             --pattern '*_test.py' \
             "$@"
diff --git a/tests/ansible/lib/action/assert_equal.py b/tests/ansible/lib/action/assert_equal.py
index f01e7ae5..5923f4b5 100644
--- a/tests/ansible/lib/action/assert_equal.py
+++ b/tests/ansible/lib/action/assert_equal.py
@@ -7,7 +7,7 @@
 __metaclass__ = type
 
 import inspect
-import unittest2
+import unittest
 
 import ansible.template
 
@@ -21,7 +21,7 @@ if 'bare_deprecated' in _argspec.args:
     TEMPLATE_KWARGS['bare_deprecated'] = False
 
 
-class TestCase(unittest2.TestCase):
+class TestCase(unittest.TestCase):
     def runTest(self):
         pass
 
diff --git a/tests/ansible/tests/affinity_test.py b/tests/ansible/tests/affinity_test.py
index fa0efb64..a29d3a8c 100644
--- a/tests/ansible/tests/affinity_test.py
+++ b/tests/ansible/tests/affinity_test.py
@@ -3,9 +3,8 @@ import multiprocessing
 import os
 import sys
 import tempfile
+import unittest
 
-import mock
-import unittest2
 import testlib
 
 import mitogen.parent
@@ -18,7 +17,7 @@ class NullFixedPolicy(ansible_mitogen.affinity.FixedPolicy):
         self.mask = mask
 
 
-@unittest2.skipIf(
+@unittest.skipIf(
     reason='Linux only',
     condition=(not os.uname()[0] == 'Linux')
 )
@@ -161,7 +160,7 @@ class FixedPolicyTest(testlib.TestCase):
         self.assertEquals(0x4 + 0x8, policy.mask)
 
 
-@unittest2.skipIf(
+@unittest.skipIf(
     reason='Linux/SMP only',
     condition=(not (
         os.uname()[0] == 'Linux' and
@@ -223,11 +222,7 @@ class MockLinuxPolicyTest(testlib.TestCase):
         for x in range(1, 4096, 32):
             policy.assign_subprocess()
 
-MockLinuxPolicyTest = unittest2.skipIf(
+MockLinuxPolicyTest = unittest.skipIf(
     condition=(not sys.platform.startswith('linuxPolicy')),
     reason='select.select() not supported'
 )(MockLinuxPolicyTest)
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/ansible/tests/connection_test.py b/tests/ansible/tests/connection_test.py
index e6578954..8bf0cb5d 100644
--- a/tests/ansible/tests/connection_test.py
+++ b/tests/ansible/tests/connection_test.py
@@ -6,8 +6,6 @@ import subprocess
 import tempfile
 import time
 
-import unittest2
-
 import mock
 import ansible.errors
 import ansible.playbook.play_context
@@ -183,7 +181,3 @@ class PutFileTest(ConnectionMixin, testlib.TestCase):
         path = tempfile.mktemp(prefix='mitotest')
         self.assertRaises(ansible.errors.AnsibleFileNotFound,
             lambda: self.conn.put_file(in_path='/nonexistent', out_path=path))
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/ansible/tests/env_file_watcher_test.py b/tests/ansible/tests/env_file_watcher_test.py
index 8803a6c2..de023903 100644
--- a/tests/ansible/tests/env_file_watcher_test.py
+++ b/tests/ansible/tests/env_file_watcher_test.py
@@ -2,8 +2,6 @@ import os
 import sys
 import tempfile
 
-import mock
-import unittest2
 import testlib
 
 from mitogen.core import b
@@ -68,7 +66,3 @@ class WatcherTest(testlib.TestCase):
         self.tf.flush()
         watcher.check()
         self.assertEqual(environb[b('SOMEKEY')], b('\xff\xff\xff'))
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/ansible/tests/target_test.py b/tests/ansible/tests/target_test.py
index 27c375da..a80cc909 100644
--- a/tests/ansible/tests/target_test.py
+++ b/tests/ansible/tests/target_test.py
@@ -3,7 +3,7 @@ from __future__ import absolute_import
 import os.path
 import subprocess
 import tempfile
-import unittest2
+import unittest
 
 import mock
 
@@ -56,7 +56,7 @@ class FindGoodTempDirTest(testlib.TestCase):
 
 
 
-class ApplyModeSpecTest(unittest2.TestCase):
+class ApplyModeSpecTest(unittest.TestCase):
     func = staticmethod(ansible_mitogen.target.apply_mode_spec)
 
     def test_simple(self):
@@ -67,7 +67,7 @@ class ApplyModeSpecTest(unittest2.TestCase):
         self.assertEquals(int('0717', 8), self.func(spec, int('0777', 8)))
 
 
-class IsGoodTempDirTest(unittest2.TestCase):
+class IsGoodTempDirTest(unittest.TestCase):
     func = staticmethod(ansible_mitogen.target.is_good_temp_dir)
 
     def test_creates(self):
@@ -86,7 +86,7 @@ class IsGoodTempDirTest(unittest2.TestCase):
             self.assertFalse(self.func(bleh))
             self.assertEquals(open(bleh).read(), 'derp')
 
-    @unittest2.skipIf(
+    @unittest.skipIf(
         os.geteuid() == 0, 'writes by root ignore directory permissions')
     def test_unwriteable(self):
         with NamedTemporaryDirectory() as temp_path:
@@ -105,8 +105,3 @@ class IsGoodTempDirTest(unittest2.TestCase):
         os_access.return_value = False
         with NamedTemporaryDirectory() as temp_path:
             self.assertFalse(self.func(temp_path))
-
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/broker_test.py b/tests/broker_test.py
index 2212d8aa..c12472e3 100644
--- a/tests/broker_test.py
+++ b/tests/broker_test.py
@@ -3,7 +3,6 @@ import time
 import threading
 
 import mock
-import unittest2
 
 import testlib
 
@@ -67,7 +66,3 @@ class DeferSyncTest(testlib.TestCase):
         finally:
             broker.shutdown()
             broker.join()
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/buildah_test.py b/tests/buildah_test.py
index 874205cd..6dcdb083 100644
--- a/tests/buildah_test.py
+++ b/tests/buildah_test.py
@@ -2,8 +2,6 @@ import os
 
 import mitogen
 
-import unittest2
-
 import testlib
 
 
@@ -22,7 +20,3 @@ class ConstructorTest(testlib.RouterMixin, testlib.TestCase):
         self.assertEquals(argv[2], '--')
         self.assertEquals(argv[3], 'container_name')
         self.assertEquals(argv[4], stream.conn.options.python_path)
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/call_error_test.py b/tests/call_error_test.py
index 00ff0ed9..ca017548 100644
--- a/tests/call_error_test.py
+++ b/tests/call_error_test.py
@@ -1,8 +1,6 @@
 import pickle
 import sys
 
-import unittest2
-
 import mitogen.core
 
 import testlib
@@ -108,7 +106,3 @@ class PickleTest(testlib.TestCase):
         e2 = pickle.loads(pickle.dumps(e))
         self.assertTrue(e2.args[0].startswith('plain_old_module.MyError: eek'))
         self.assertTrue('test_from_exc_tb' in e2.args[0])
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/call_function_test.py b/tests/call_function_test.py
index 9e821b27..5c93ce76 100644
--- a/tests/call_function_test.py
+++ b/tests/call_function_test.py
@@ -1,8 +1,6 @@
 import logging
 import time
 
-import unittest2
-
 import mitogen.core
 import mitogen.parent
 import mitogen.master
@@ -184,7 +182,3 @@ class UnsupportedCallablesTest(testlib.RouterMixin, testlib.TestCase):
         e = self.assertRaises(TypeError,
             lambda: self.local.call(X().x))
         self.assertEquals(e.args[0], self.klass.method_msg)
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/channel_test.py b/tests/channel_test.py
index 31d3f35d..096c05c3 100644
--- a/tests/channel_test.py
+++ b/tests/channel_test.py
@@ -1,5 +1,3 @@
-import unittest2
-
 import mitogen.core
 import testlib
 
@@ -14,7 +12,3 @@ class ConstructorTest(testlib.RouterMixin, testlib.TestCase):
         self.assertEqual(chan.dst_handle, 123)
         self.assertIsNotNone(chan.handle)
         self.assertGreater(chan.handle, 0)
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/connection_test.py b/tests/connection_test.py
index 619594d9..b3234c91 100644
--- a/tests/connection_test.py
+++ b/tests/connection_test.py
@@ -6,7 +6,6 @@ import tempfile
 import threading
 import time
 
-import unittest2
 import testlib
 
 import mitogen.core
@@ -71,7 +70,3 @@ class DetachReapTest(testlib.RouterMixin, testlib.TestCase):
         # now clean up
         os.kill(pid, signal.SIGTERM)
         os.waitpid(pid, 0)
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/context_test.py b/tests/context_test.py
index 4bc4bd2e..526da0e2 100644
--- a/tests/context_test.py
+++ b/tests/context_test.py
@@ -1,6 +1,5 @@
 
 import pickle
-import unittest2
 
 import mitogen.core
 from mitogen.core import b
@@ -31,7 +30,3 @@ class PickleTest(testlib.RouterMixin, testlib.TestCase):
         self.assertEquals(None, c2.router)
         self.assertEquals(c.context_id, c2.context_id)
         self.assertEquals(c.name, c2.name)
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/create_child_test.py b/tests/create_child_test.py
index aae5882d..1596f0f8 100644
--- a/tests/create_child_test.py
+++ b/tests/create_child_test.py
@@ -6,8 +6,6 @@ import sys
 import time
 import tempfile
 
-import unittest2
-
 import mitogen.core
 import mitogen.parent
 from mitogen.core import b
@@ -338,7 +336,3 @@ if 0:
             self.assertFalse(flags & os.O_RDWR)
             self.assertTrue(info['flags'] & os.O_WRONLY)
             self.assertTrue(buf, 'TEST')
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/doas_test.py b/tests/doas_test.py
index d1266e2e..37fef484 100644
--- a/tests/doas_test.py
+++ b/tests/doas_test.py
@@ -5,8 +5,6 @@ import mitogen
 import mitogen.doas
 import mitogen.parent
 
-import unittest2
-
 import testlib
 
 
@@ -60,7 +58,3 @@ class ConstructorTest(testlib.RouterMixin, testlib.TestCase):
 #         )
 #         context = self.router.doas(via=ssh, password='has_sudo_password')
 #         self.assertEquals(0, context.call(os.getuid))
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/docker_test.py b/tests/docker_test.py
index b5d15707..31b1e0d8 100644
--- a/tests/docker_test.py
+++ b/tests/docker_test.py
@@ -2,8 +2,6 @@ import os
 
 import mitogen
 
-import unittest2
-
 import testlib
 
 
@@ -22,7 +20,3 @@ class ConstructorTest(testlib.RouterMixin, testlib.TestCase):
         self.assertEquals(argv[2], '--interactive')
         self.assertEquals(argv[3], 'container_name')
         self.assertEquals(argv[4], stream.conn.options.python_path)
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/error_test.py b/tests/error_test.py
index 2eefd567..9cf38cd1 100644
--- a/tests/error_test.py
+++ b/tests/error_test.py
@@ -1,6 +1,3 @@
-
-import unittest2
-
 import testlib
 import mitogen.core
 
@@ -27,7 +24,3 @@ class ConstructorTest(testlib.TestCase):
         e = self.klass(mitogen.core.b('error'))
         self.assertEquals(e.args[0], 'error')
         self.assertTrue(isinstance(e.args[0], mitogen.core.UnicodeType))
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/fakessh_test.py b/tests/fakessh_test.py
index e7dde711..7fc749d8 100644
--- a/tests/fakessh_test.py
+++ b/tests/fakessh_test.py
@@ -1,8 +1,7 @@
 
 import os
 import shutil
-
-import unittest2
+import unittest
 
 import mitogen.fakessh
 
@@ -10,7 +9,7 @@ import testlib
 
 
 class RsyncTest(testlib.DockerMixin, testlib.TestCase):
-    @unittest2.skip('broken')
+    @unittest.skip('broken')
     def test_rsync_from_master(self):
         context = self.docker_ssh_any()
 
@@ -26,7 +25,7 @@ class RsyncTest(testlib.DockerMixin, testlib.TestCase):
         self.assertTrue(context.call(os.path.exists, '/tmp/data'))
         self.assertTrue(context.call(os.path.exists, '/tmp/data/simple_pkg/a.py'))
 
-    @unittest2.skip('broken')
+    @unittest.skip('broken')
     def test_rsync_between_direct_children(self):
         # master -> SSH -> mitogen__has_sudo_pubkey -> rsync(.ssh) -> master ->
         # mitogen__has_sudo -> rsync
@@ -59,7 +58,3 @@ class RsyncTest(testlib.DockerMixin, testlib.TestCase):
             pubkey_acct.call(os.path.getsize, '.ssh/authorized_keys'),
             webapp_acct.call(os.path.getsize, dest_path + '/authorized_keys'),
         )
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/file_service_test.py b/tests/file_service_test.py
index 45b621ac..cd3ae725 100644
--- a/tests/file_service_test.py
+++ b/tests/file_service_test.py
@@ -1,8 +1,6 @@
 
 import sys
 
-import unittest2
-
 import mitogen.service
 
 import testlib
@@ -148,7 +146,3 @@ class FetchTest(testlib.RouterMixin, testlib.TestCase):
 
         expect = service.unregistered_msg % (path,)
         self.assertTrue(expect in e.args[0])
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/first_stage_test.py b/tests/first_stage_test.py
index 53f98373..310dea60 100644
--- a/tests/first_stage_test.py
+++ b/tests/first_stage_test.py
@@ -1,8 +1,6 @@
 
 import subprocess
 
-import unittest2
-
 import mitogen.parent
 from mitogen.core import b
 
@@ -45,7 +43,3 @@ class CommandLineTest(testlib.RouterMixin, testlib.TestCase):
             self.assertIn(b("Error -5 while decompressing data"), stderr)
         finally:
             fp.close()
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/fork_test.py b/tests/fork_test.py
index 7ca41194..d945650c 100644
--- a/tests/fork_test.py
+++ b/tests/fork_test.py
@@ -3,6 +3,7 @@ import os
 import random
 import struct
 import sys
+import unittest
 
 try:
     import _ssl
@@ -21,7 +22,6 @@ except ImportError:
     ctypes = None
 
 import mitogen
-import unittest2
 
 import testlib
 import plain_old_module
@@ -78,7 +78,7 @@ def exercise_importer(n):
     return simple_pkg.a.subtract_one_add_two(n)
 
 
-skipIfUnsupported = unittest2.skipIf(
+skipIfUnsupported = unittest.skipIf(
     condition=(not mitogen.fork.FORK_SUPPORTED),
     reason="mitogen.fork unsupported on this platform"
 )
@@ -94,7 +94,7 @@ class ForkTest(testlib.RouterMixin, testlib.TestCase):
         context = self.router.fork()
         self.assertNotEqual(context.call(random_random), random_random())
 
-    @unittest2.skipIf(
+    @unittest.skipIf(
         condition=LIBSSL_PATH is None or ctypes is None,
         reason='cant test libssl on this platform',
     )
@@ -142,7 +142,3 @@ class DoubleChildTest(testlib.RouterMixin, testlib.TestCase):
         self.assertEqual(2, c2.call(exercise_importer, 1))
 
 DoubleChildTest = skipIfUnsupported(DoubleChildTest)
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/id_allocation_test.py b/tests/id_allocation_test.py
index 1e8d8d1e..9b47518b 100644
--- a/tests/id_allocation_test.py
+++ b/tests/id_allocation_test.py
@@ -1,6 +1,3 @@
-
-import unittest2
-
 import testlib
 
 import mitogen.core
@@ -30,7 +27,3 @@ class SlaveTest(testlib.RouterMixin, testlib.TestCase):
         # Subsequent master allocation does not collide
         c2 = self.router.local()
         self.assertEquals(1002, c2.context_id)
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/importer_test.py b/tests/importer_test.py
index c796f7d0..af7fbd15 100644
--- a/tests/importer_test.py
+++ b/tests/importer_test.py
@@ -5,7 +5,6 @@ import types
 import zlib
 
 import mock
-import unittest2
 
 import mitogen.core
 import mitogen.utils
@@ -221,7 +220,3 @@ class SelfReplacingModuleTest(testlib.RouterMixin, testlib.TestCase):
         c = self.router.local()
         self.assertEquals(0,
             c.call(simple_pkg.imports_replaces_self.subtract_one, 1))
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/io_op_test.py b/tests/io_op_test.py
index 525a1b12..eb40c5af 100644
--- a/tests/io_op_test.py
+++ b/tests/io_op_test.py
@@ -3,7 +3,6 @@ import errno
 import select
 
 import mock
-import unittest2
 
 import testlib
 import mitogen.core
@@ -122,7 +121,3 @@ class SelectExceptionTest(ExceptionTest, testlib.TestCase):
 class OsErrorExceptionTest(ExceptionTest, testlib.TestCase):
     errno = errno.EBADF
     exception_class = OSError
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/iter_split_test.py b/tests/iter_split_test.py
index ee5e97d9..fe561102 100644
--- a/tests/iter_split_test.py
+++ b/tests/iter_split_test.py
@@ -1,6 +1,7 @@
 
+import unittest
+
 import mock
-import unittest2
 
 import mitogen.core
 
@@ -13,7 +14,7 @@ except NameError:
         return it.next()
 
 
-class IterSplitTest(unittest2.TestCase):
+class IterSplitTest(unittest.TestCase):
     func = staticmethod(mitogen.core.iter_split)
 
     def test_empty_buffer(self):
@@ -60,7 +61,3 @@ class IterSplitTest(unittest2.TestCase):
         trailer, cont = self.func(buf=buf, delim='\n', func=func)
         self.assertFalse(cont)
         self.assertEquals('zz', trailer)
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/jail_test.py b/tests/jail_test.py
index 7239d32f..810ee8dd 100644
--- a/tests/jail_test.py
+++ b/tests/jail_test.py
@@ -4,8 +4,6 @@ import os
 import mitogen
 import mitogen.parent
 
-import unittest2
-
 import testlib
 
 
@@ -27,7 +25,3 @@ class ConstructorTest(testlib.RouterMixin, testlib.TestCase):
             '-c',
         ])
         self.assertEquals('1', context.call(os.getenv, 'THIS_IS_STUB_JEXEC'))
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/kubectl_test.py b/tests/kubectl_test.py
index 0bac3048..06365bec 100644
--- a/tests/kubectl_test.py
+++ b/tests/kubectl_test.py
@@ -4,8 +4,6 @@ import os
 import mitogen
 import mitogen.parent
 
-import unittest2
-
 import testlib
 
 
@@ -23,7 +21,3 @@ class ConstructorTest(testlib.RouterMixin, testlib.TestCase):
         self.assertEquals(argv[1], 'exec')
         self.assertEquals(argv[2], '-it')
         self.assertEquals(argv[3], 'pod_name')
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/latch_test.py b/tests/latch_test.py
index 6ae43221..f137c9c1 100644
--- a/tests/latch_test.py
+++ b/tests/latch_test.py
@@ -2,8 +2,6 @@
 import sys
 import threading
 
-import unittest2
-
 import mitogen.core
 
 import testlib
@@ -212,8 +210,3 @@ class ThreadedCloseTest(testlib.TestCase):
         self.assertEquals(self.results, [None]*5)
         for exc in self.excs:
             self.assertTrue(isinstance(exc, mitogen.core.LatchError))
-
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/local_test.py b/tests/local_test.py
index fe2bd149..ac962a58 100644
--- a/tests/local_test.py
+++ b/tests/local_test.py
@@ -2,8 +2,6 @@
 import os
 import sys
 
-import unittest2
-
 import mitogen
 
 import testlib
@@ -48,7 +46,3 @@ class ConstructionTest(testlib.RouterMixin, testlib.TestCase):
         env = context.call(get_os_environ)
         self.assertEquals('magic_first_arg', env['STUB_PYTHON_FIRST_ARG'])
         self.assertEquals('1', env['THIS_IS_STUB_PYTHON'])
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/log_handler_test.py b/tests/log_handler_test.py
index 8f4d9dd5..b1d1af59 100644
--- a/tests/log_handler_test.py
+++ b/tests/log_handler_test.py
@@ -2,8 +2,8 @@
 import logging
 import mock
 import sys
+import unittest
 
-import unittest2
 import testlib
 import mitogen.core
 import mitogen.master
@@ -86,11 +86,7 @@ class StartupTest(testlib.RouterMixin, testlib.TestCase):
         expect = 'Parent is context %s (%s)' % (c1.context_id, 'parent')
         self.assertTrue(expect in logs)
 
-StartupTest = unittest2.skipIf(
+StartupTest = unittest.skipIf(
     condition=sys.version_info < (2, 7) or sys.version_info >= (3, 6),
     reason="Message log flaky on Python < 2.7 or >= 3.6"
 )(StartupTest)
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/lxc_test.py b/tests/lxc_test.py
index f78846ff..f1903f2c 100644
--- a/tests/lxc_test.py
+++ b/tests/lxc_test.py
@@ -8,8 +8,6 @@ try:
 except NameError:
     from mitogen.core import any
 
-import unittest2
-
 import testlib
 
 
@@ -39,7 +37,3 @@ class ConstructorTest(testlib.RouterMixin, testlib.TestCase):
             )
         )
         self.assertTrue(str(e).endswith(mitogen.lxc.Connection.eof_error_hint))
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/lxd_test.py b/tests/lxd_test.py
index c80f8251..baf73d8d 100644
--- a/tests/lxd_test.py
+++ b/tests/lxd_test.py
@@ -4,8 +4,6 @@ import mitogen
 import mitogen.lxd
 import mitogen.parent
 
-import unittest2
-
 import testlib
 
 
@@ -31,7 +29,3 @@ class ConstructorTest(testlib.RouterMixin, testlib.TestCase):
             )
         )
         self.assertTrue(str(e).endswith(mitogen.lxd.Connection.eof_error_hint))
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/master_test.py b/tests/master_test.py
index 31d11013..af006c43 100644
--- a/tests/master_test.py
+++ b/tests/master_test.py
@@ -1,6 +1,5 @@
 import inspect
-
-import unittest2
+import unittest
 
 import testlib
 import mitogen.master
@@ -16,7 +15,7 @@ class ScanCodeImportsTest(testlib.TestCase):
 
     SIMPLE_EXPECT = [
         (level, 'inspect', ()),
-        (level, 'unittest2', ()),
+        (level, 'unittest', ()),
         (level, 'testlib', ()),
         (level, 'mitogen.master', ()),
     ]
@@ -25,7 +24,3 @@ class ScanCodeImportsTest(testlib.TestCase):
         source_path = inspect.getsourcefile(ScanCodeImportsTest)
         co = compile(open(source_path).read(), source_path, 'exec')
         self.assertEquals(list(self.func(co)), self.SIMPLE_EXPECT)
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/message_test.py b/tests/message_test.py
index 79deb2c6..38f9704e 100644
--- a/tests/message_test.py
+++ b/tests/message_test.py
@@ -1,9 +1,9 @@
 
 import sys
 import struct
+import unittest
 
 import mock
-import unittest2
 
 import mitogen.core
 import mitogen.master
@@ -170,7 +170,7 @@ class PickledTest(testlib.TestCase):
         for b in True, False:
             self.assertEquals(b, self.roundtrip(b))
 
-    @unittest2.skipIf(condition=sys.version_info < (2, 6),
+    @unittest.skipIf(condition=sys.version_info < (2, 6),
                       reason='bytearray missing on <2.6')
     def test_bytearray(self):
         ba = bytearray(b('123'))
@@ -201,7 +201,7 @@ class PickledTest(testlib.TestCase):
         for k in range(len(l)):
             self.assertTrue(isinstance(roundtrip[k], type(l[k])))
 
-    @unittest2.skipIf(condition=sys.version_info > (3, 0),
+    @unittest.skipIf(condition=sys.version_info > (3, 0),
                       reason='long missing in >3.x')
     def test_long(self):
         l = long(0xffffffffffff)
@@ -539,7 +539,3 @@ class ReprTest(testlib.TestCase):
     def test_repr(self):
         # doesn't crash
         repr(self.klass.pickled('test'))
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/minify_test.py b/tests/minify_test.py
index 15609896..872f70c8 100644
--- a/tests/minify_test.py
+++ b/tests/minify_test.py
@@ -3,8 +3,6 @@ import glob
 import pprint
 import sys
 
-import unittest2
-
 import mitogen.minify
 import testlib
 
@@ -112,7 +110,3 @@ class MitogenCoreTest(testlib.TestCase):
             self._test_syntax_valid(minified, name)
             self._test_line_counts_match(original, minified)
             self._test_non_blank_lines_match(name, original, minified)
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/mitogen_protocol_test.py b/tests/mitogen_protocol_test.py
index 834fb437..7b4574ee 100644
--- a/tests/mitogen_protocol_test.py
+++ b/tests/mitogen_protocol_test.py
@@ -1,5 +1,4 @@
 
-import unittest2
 import mock
 
 import mitogen.core
@@ -28,7 +27,3 @@ class ReceiveOneTest(testlib.TestCase):
         self.assertEquals(1, stream.on_disconnect.call_count)
         expect = self.klass.corrupt_msg % (stream.name, junk)
         self.assertTrue(expect in capture.raw())
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/module_finder_test.py b/tests/module_finder_test.py
index ac3bfe6c..8d74df73 100644
--- a/tests/module_finder_test.py
+++ b/tests/module_finder_test.py
@@ -1,8 +1,7 @@
 import inspect
 import os
 import sys
-
-import unittest2
+import unittest
 
 import mitogen.master
 from mitogen.core import b
@@ -395,7 +394,7 @@ if sys.version_info > (2, 6):
                 u'django.utils.six',
             ])
 
-        @unittest2.skipIf(
+        @unittest.skipIf(
             condition=(sys.version_info >= (3, 0)),
             reason='broken due to ancient vendored six.py'
         )
@@ -491,6 +490,3 @@ if sys.version_info > (2, 6):
                 u'pytz.tzfile',
                 u'pytz.tzinfo',
             ])
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/nested_test.py b/tests/nested_test.py
index 668c21e3..718c2eea 100644
--- a/tests/nested_test.py
+++ b/tests/nested_test.py
@@ -1,7 +1,5 @@
 import os
 
-import unittest2
-
 import testlib
 
 
@@ -13,7 +11,3 @@ class NestedTest(testlib.RouterMixin, testlib.TestCase):
 
         pid = context.call(os.getpid)
         self.assertIsInstance(pid, int)
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/os_fork_test.py b/tests/os_fork_test.py
index 14ea8465..eca2d4bf 100644
--- a/tests/os_fork_test.py
+++ b/tests/os_fork_test.py
@@ -1,6 +1,4 @@
-
 import testlib
-import unittest2
 
 import mitogen.os_fork
 import mitogen.service
@@ -45,8 +43,3 @@ class CorkTest(testlib.RouterMixin, testlib.TestCase):
             self.assertEquals('pong', latch.get())
         finally:
             pool.stop(join=True)
-
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/parent_test.py b/tests/parent_test.py
index 7c056f36..1ee84ad8 100644
--- a/tests/parent_test.py
+++ b/tests/parent_test.py
@@ -4,9 +4,9 @@ import os
 import signal
 import sys
 import time
+import unittest
 
 import mock
-import unittest2
 import testlib
 
 import mitogen.core
@@ -188,7 +188,7 @@ class OpenPtyTest(testlib.TestCase):
         msg = mitogen.parent.OPENPTY_MSG % (openpty.side_effect,)
         self.assertEquals(e.args[0], msg)
 
-    @unittest2.skipIf(condition=(os.uname()[0] != 'Linux'),
+    @unittest.skipIf(condition=(os.uname()[0] != 'Linux'),
                       reason='Fallback only supported on Linux')
     @mock.patch('os.openpty')
     def test_broken_linux_fallback(self, openpty):
@@ -288,7 +288,3 @@ class DisconnectTest(testlib.RouterMixin, testlib.TestCase):
             lambda: recv.get().unpickle())
         s = 'mitogen.core.ChannelError: ' + self.router.respondent_disconnect_msg
         self.assertTrue(e.args[0].startswith(s))
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/podman_test.py b/tests/podman_test.py
index 8ee2d1cd..cf89ec63 100644
--- a/tests/podman_test.py
+++ b/tests/podman_test.py
@@ -1,5 +1,4 @@
 import os
-import unittest2
 
 import mitogen
 
@@ -45,8 +44,3 @@ class ConstructorTest(testlib.RouterMixin, testlib.TestCase):
             stream.conn.options.python_path
         ]
         self.assertEquals(argv[:len(expected_call)], expected_call)
-
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/policy_function_test.py b/tests/policy_function_test.py
index 56e33b89..843f8b7c 100644
--- a/tests/policy_function_test.py
+++ b/tests/policy_function_test.py
@@ -1,6 +1,4 @@
-
 import mock
-import unittest2
 
 import mitogen.core
 import mitogen.parent
@@ -34,7 +32,3 @@ class IsImmediateChildTest(testlib.TestCase):
     def test_okay(self):
         self.assertFalse(0, 1)
         self.assertTrue(1, 1)
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/poller_test.py b/tests/poller_test.py
index 3ed59ae3..da6b71e5 100644
--- a/tests/poller_test.py
+++ b/tests/poller_test.py
@@ -4,9 +4,7 @@ import os
 import select
 import socket
 import sys
-import time
-
-import unittest2
+import unittest
 
 import mitogen.core
 import mitogen.parent
@@ -400,7 +398,7 @@ class AllMixin(ReceiveStateMixin,
 class SelectTest(AllMixin, testlib.TestCase):
     klass = mitogen.core.Poller
 
-SelectTest = unittest2.skipIf(
+SelectTest = unittest.skipIf(
     condition=(not SelectTest.klass.SUPPORTED),
     reason='select.select() not supported'
 )(SelectTest)
@@ -409,7 +407,7 @@ SelectTest = unittest2.skipIf(
 class PollTest(AllMixin, testlib.TestCase):
     klass = mitogen.parent.PollPoller
 
-PollTest = unittest2.skipIf(
+PollTest = unittest.skipIf(
     condition=(not PollTest.klass.SUPPORTED),
     reason='select.poll() not supported'
 )(PollTest)
@@ -418,7 +416,7 @@ PollTest = unittest2.skipIf(
 class KqueueTest(AllMixin, testlib.TestCase):
     klass = mitogen.parent.KqueuePoller
 
-KqueueTest = unittest2.skipIf(
+KqueueTest = unittest.skipIf(
     condition=(not KqueueTest.klass.SUPPORTED),
     reason='select.kqueue() not supported'
 )(KqueueTest)
@@ -427,11 +425,7 @@ KqueueTest = unittest2.skipIf(
 class EpollTest(AllMixin, testlib.TestCase):
     klass = mitogen.parent.EpollPoller
 
-EpollTest = unittest2.skipIf(
+EpollTest = unittest.skipIf(
     condition=(not EpollTest.klass.SUPPORTED),
     reason='select.epoll() not supported'
 )(EpollTest)
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/polyfill_functions_test.py b/tests/polyfill_functions_test.py
index ae65eb2f..8ec4ddc6 100644
--- a/tests/polyfill_functions_test.py
+++ b/tests/polyfill_functions_test.py
@@ -1,6 +1,5 @@
 
 import testlib
-import unittest2
 
 import mitogen.core
 from mitogen.core import b
@@ -97,7 +96,3 @@ class StrRpartitionTest(testlib.TestCase):
         self.assertEquals(left, u'davexdave')
         self.assertEquals(sep, u'x')
         self.assertEquals(right, u'dave')
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/push_file_service_test.py b/tests/push_file_service_test.py
index 1dfff241..e61208fc 100644
--- a/tests/push_file_service_test.py
+++ b/tests/push_file_service_test.py
@@ -1,7 +1,6 @@
 
 import os
 import tempfile
-import unittest2
 
 import mitogen.core
 import mitogen.service
@@ -50,7 +49,3 @@ class PropagateToTest(testlib.RouterMixin, testlib.TestCase):
             self.assertEquals(b('test'), s)
         finally:
             tf.close()
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/reaper_test.py b/tests/reaper_test.py
index e78fdbf2..da876b53 100644
--- a/tests/reaper_test.py
+++ b/tests/reaper_test.py
@@ -1,6 +1,6 @@
 
 import signal
-import unittest2
+
 import testlib
 import mock
 
@@ -48,7 +48,3 @@ class ReaperTest(testlib.TestCase):
             mock.call(proc.pid, signal.SIGTERM),
             mock.call(proc.pid, signal.SIGKILL),
         ])
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/receiver_test.py b/tests/receiver_test.py
index 65c5f7ff..23d5ac7f 100644
--- a/tests/receiver_test.py
+++ b/tests/receiver_test.py
@@ -1,7 +1,7 @@
 
 import sys
 import threading
-import unittest2
+import unittest
 
 import mitogen.core
 import testlib
@@ -120,7 +120,7 @@ class OnReceiveTest(testlib.RouterMixin, testlib.TestCase):
         e = self.assertRaises(mitogen.core.ChannelError, throw)
         self.assertEquals(e.args[0], sender.explicit_close_msg)
 
-    @unittest2.skip(reason=(
+    @unittest.skip(reason=(
         'Unclear if a asingle dead message received from remote should '
         'cause all threads to wake up.'
     ))
@@ -153,7 +153,3 @@ class ToSenderTest(testlib.RouterMixin, testlib.TestCase):
         myself = self.router.myself()
         recv = self.klass(self.router)
         self.assertEquals(myself, recv.to_sender().context)
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/requirements.txt b/tests/requirements.txt
index c125a28f..319e0f51 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -9,7 +9,6 @@ pycparser==2.18  # Last version supporting 2.6.
 pytest-catchlog==1.2.2
 pytest==3.1.2
 timeoutcontext==1.2.0
-unittest2==1.1.0
 # Fix InsecurePlatformWarning while creating py26 tox environment
 # https://urllib3.readthedocs.io/en/latest/advanced-usage.html#ssl-warnings
 urllib3[secure]==1.23; python_version < '2.7'
diff --git a/tests/responder_test.py b/tests/responder_test.py
index 2653589c..6534b7e5 100644
--- a/tests/responder_test.py
+++ b/tests/responder_test.py
@@ -3,8 +3,7 @@ import mock
 import textwrap
 import subprocess
 import sys
-
-import unittest2
+import unittest
 
 import mitogen.master
 import testlib
@@ -130,7 +129,7 @@ class BrokenModulesTest(testlib.TestCase):
         self.assertEquals(('non_existent_module', None, None, None, ()),
                           msg.unpickle())
 
-    @unittest2.skipIf(
+    @unittest.skipIf(
         condition=sys.version_info < (2, 6),
         reason='Ancient Python lacked "from . import foo"',
     )
@@ -197,22 +196,18 @@ class ForwardTest(testlib.RouterMixin, testlib.TestCase):
 
 
 class BlacklistTest(testlib.TestCase):
-    @unittest2.skip('implement me')
+    @unittest.skip('implement me')
     def test_whitelist_no_blacklist(self):
         assert 0
 
-    @unittest2.skip('implement me')
+    @unittest.skip('implement me')
     def test_whitelist_has_blacklist(self):
         assert 0
 
-    @unittest2.skip('implement me')
+    @unittest.skip('implement me')
     def test_blacklist_no_whitelist(self):
         assert 0
 
-    @unittest2.skip('implement me')
+    @unittest.skip('implement me')
     def test_blacklist_has_whitelist(self):
         assert 0
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/router_test.py b/tests/router_test.py
index 61e7a2c5..69c6899c 100644
--- a/tests/router_test.py
+++ b/tests/router_test.py
@@ -4,8 +4,6 @@ import sys
 import time
 import zlib
 
-import unittest2
-
 import testlib
 import mitogen.core
 import mitogen.master
@@ -583,7 +581,3 @@ class ShutdownTest(testlib.RouterMixin, testlib.TestCase):
                 ctx.context_id,
                 mitogen.context_id,
             ))
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/select_test.py b/tests/select_test.py
index 56e7e6cd..e2d6f58e 100644
--- a/tests/select_test.py
+++ b/tests/select_test.py
@@ -1,6 +1,3 @@
-
-import unittest2
-
 import mitogen.select
 
 import testlib
@@ -476,7 +473,3 @@ class GetEventTest(testlib.RouterMixin, testlib.TestCase):
         event = select.get_event()
         self.assertEquals(recv, event.source)
         self.assertEquals('123', event.data.unpickle())
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/service_test.py b/tests/service_test.py
index a3e75e14..a267c269 100644
--- a/tests/service_test.py
+++ b/tests/service_test.py
@@ -1,5 +1,3 @@
-import unittest2
-
 import mitogen.core
 import mitogen.service
 import testlib
@@ -154,7 +152,3 @@ class CloseTest(testlib.RouterMixin, testlib.TestCase):
         e = self.assertRaises(mitogen.core.ChannelError,
             lambda: self.router.myself().call_service(MyService, 'foobar'))
         self.assertEquals(e.args[0], self.router.invalid_handle_msg)
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/setns_test.py b/tests/setns_test.py
index 6b432d40..7e2a91a0 100644
--- a/tests/setns_test.py
+++ b/tests/setns_test.py
@@ -2,12 +2,11 @@
 import os
 import socket
 import sys
+import unittest
 
 import mitogen
 import mitogen.parent
 
-import unittest2
-
 import testlib
 
 
@@ -18,7 +17,7 @@ import testlib
 #         try:
 #             root = self.router.sudo()
 #         except mitogen.core.StreamError:
-#             raise unittest2.SkipTest("requires sudo to localhost root")
+#             raise unittest.SkipTest("requires sudo to localhost root")
 
 #         via_ssh = self.docker_ssh(
 #             username='mitogen__has_sudo',
@@ -37,11 +36,7 @@ import testlib
 #         )
 
 
-# DockerTest = unittest2.skipIf(
+# DockerTest = unittest.skipIf(
 #     condition=sys.version_info < (2, 5),
 #     reason="mitogen.setns unsupported on Python <2.4"
 # )(DockerTest)
-
-
-# if __name__ == '__main__':
-#     unittest2.main()
diff --git a/tests/signals_test.py b/tests/signals_test.py
index 79b59e8a..c583d173 100644
--- a/tests/signals_test.py
+++ b/tests/signals_test.py
@@ -1,6 +1,4 @@
 
-import unittest2
-
 import testlib
 import mitogen.core
 
@@ -39,7 +37,3 @@ class ListenFireTest(testlib.TestCase):
         self.assertEquals('event fired', latch2.get())
         self.assertTrue(latch.empty())
         self.assertTrue(latch2.empty())
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/ssh_test.py b/tests/ssh_test.py
index 273412e8..9e2b1aaf 100644
--- a/tests/ssh_test.py
+++ b/tests/ssh_test.py
@@ -6,8 +6,6 @@ import mitogen
 import mitogen.ssh
 import mitogen.utils
 
-import unittest2
-
 import testlib
 import plain_old_module
 
@@ -224,7 +222,3 @@ class StubCheckHostKeysTest(StubSshMixin, testlib.TestCase):
         # required=true, password is not None
         context = self.stub_ssh(check_host_keys='ignore', password='willick')
         self.assertEquals('1', context.call(os.getenv, 'STDERR_WAS_TTY'))
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/su_test.py b/tests/su_test.py
index 320f9cef..8ffc014a 100644
--- a/tests/su_test.py
+++ b/tests/su_test.py
@@ -4,8 +4,6 @@ import os
 import mitogen
 import mitogen.su
 
-import unittest2
-
 import testlib
 
 
@@ -67,7 +65,3 @@ class SuTest(testlib.DockerMixin, testlib.TestCase):
         )
         context = self.router.su(via=ssh, password='rootpassword')
         self.assertEquals(0, context.call(os.getuid))
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/sudo_test.py b/tests/sudo_test.py
index 7a6523e5..aff8f556 100644
--- a/tests/sudo_test.py
+++ b/tests/sudo_test.py
@@ -4,8 +4,6 @@ import os
 import mitogen
 import mitogen.sudo
 
-import unittest2
-
 import testlib
 
 
@@ -104,7 +102,3 @@ class ConstructorTest(testlib.RouterMixin, testlib.TestCase):
 #             lambda: self.router.sudo(via=ssh, password='rootpassword')
 #         )
 #         self.assertTrue(mitogen.sudo.password_incorrect_msg in str(e))
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/testlib.py b/tests/testlib.py
index ef35e13e..784a643a 100644
--- a/tests/testlib.py
+++ b/tests/testlib.py
@@ -11,9 +11,9 @@ import sys
 import threading
 import time
 import traceback
+import unittest
 
 import psutil
-import unittest2
 
 import mitogen.core
 import mitogen.fork
@@ -328,7 +328,7 @@ class LogCapturer(object):
         return self.raw()
 
 
-class TestCase(unittest2.TestCase):
+class TestCase(unittest.TestCase):
     @classmethod
     def setUpClass(cls):
         # This is done in setUpClass() so we have a chance to run before any
@@ -460,7 +460,7 @@ class DockerizedSshDaemon(object):
         try:
             subprocess__check_output(['docker', '--version'])
         except Exception:
-            raise unittest2.SkipTest('Docker binary is unavailable')
+            raise unittest.SkipTest('Docker binary is unavailable')
 
         self.container_name = 'mitogen-test-%08x' % (random.getrandbits(64),)
         args = [
@@ -558,7 +558,7 @@ class DockerMixin(RouterMixin):
     def setUpClass(cls):
         super(DockerMixin, cls).setUpClass()
         if os.environ.get('SKIP_DOCKER_TESTS'):
-            raise unittest2.SkipTest('SKIP_DOCKER_TESTS is set')
+            raise unittest.SkipTest('SKIP_DOCKER_TESTS is set')
 
         # we want to be able to override test distro for some tests that need a different container spun up
         daemon_args = {}
diff --git a/tests/timer_test.py b/tests/timer_test.py
index 749405a4..8ccbe850 100644
--- a/tests/timer_test.py
+++ b/tests/timer_test.py
@@ -2,7 +2,6 @@
 import time
 
 import mock
-import unittest2
 
 import mitogen.core
 import mitogen.parent
@@ -195,7 +194,3 @@ class BrokerTimerTest(testlib.TestCase):
         finally:
             router.broker.shutdown()
             router.broker.join()
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/two_three_compat_test.py b/tests/two_three_compat_test.py
index e761244c..63213942 100644
--- a/tests/two_three_compat_test.py
+++ b/tests/two_three_compat_test.py
@@ -1,5 +1,3 @@
-import unittest2
-
 import mitogen.core
 import mitogen.master
 
@@ -23,7 +21,3 @@ class TwoThreeCompatTest(testlib.RouterMixin, testlib.TestCase):
         spare2, = target.call(simple_pkg.ping.ping, spare)
         self.assertEquals(spare.context_id, spare2.context_id)
         self.assertEquals(spare.name, spare2.name)
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/types_test.py b/tests/types_test.py
index 8e441c65..83740690 100644
--- a/tests/types_test.py
+++ b/tests/types_test.py
@@ -8,7 +8,7 @@ except ImportError:
     from StringIO import StringIO as StringIO
     from StringIO import StringIO as BytesIO
 
-import unittest2
+import unittest
 
 import mitogen.core
 from mitogen.core import b
@@ -95,14 +95,14 @@ class KwargsTest(testlib.TestCase):
         self.assertTrue(type(dct) is dict)
         self.assertEquals({}, dct)
 
-    @unittest2.skipIf(condition=(sys.version_info >= (2, 6)),
+    @unittest.skipIf(condition=(sys.version_info >= (2, 6)),
                       reason='py<2.6 only')
     def test_bytes_conversion(self):
         kw = self.klass({u'key': 123})
         self.assertEquals({'key': 123}, kw)
         self.assertEquals("Kwargs({'key': 123})", repr(kw))
 
-    @unittest2.skipIf(condition=not mitogen.core.PY3,
+    @unittest.skipIf(condition=not mitogen.core.PY3,
                       reason='py3 only')
     def test_unicode_conversion(self):
         kw = self.klass({mitogen.core.b('key'): 123})
@@ -142,7 +142,3 @@ class ToTextTest(testlib.TestCase):
         s = self.func(123)
         self.assertEquals(mitogen.core.UnicodeType, type(s))
         self.assertEquals(s, u'123')
-
-
-if __name__ == '__main__':
-    unittest2.main()
diff --git a/tests/unix_test.py b/tests/unix_test.py
index cf3e595f..3c341259 100644
--- a/tests/unix_test.py
+++ b/tests/unix_test.py
@@ -5,8 +5,6 @@ import subprocess
 import sys
 import time
 
-import unittest2
-
 import mitogen
 import mitogen.master
 import mitogen.service
@@ -148,5 +146,3 @@ class ClientTest(testlib.TestCase):
 if __name__ == '__main__':
     if len(sys.argv) == 3 and sys.argv[1] == 'ClientTest_server':
         ClientTest._test_simple_server(path=sys.argv[2])
-    else:
-        unittest2.main()
diff --git a/tests/utils_test.py b/tests/utils_test.py
index b5204a3c..2c7f70b7 100644
--- a/tests/utils_test.py
+++ b/tests/utils_test.py
@@ -3,7 +3,6 @@
 import os
 import tempfile
 
-import unittest2
 import mock
 
 import mitogen.core
@@ -98,7 +97,3 @@ class CastTest(testlib.TestCase):
     def test_unknown(self):
         self.assertRaises(TypeError, mitogen.utils.cast, set())
         self.assertRaises(TypeError, mitogen.utils.cast, 4j)
-
-
-if __name__ == '__main__':
-    unittest2.main()