diff --git a/setup.py b/setup.py
index 55fe9f853..7ffcbc204 100755
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@ import subprocess
 import sys
 import warnings
 
-# Hack to silence atexit traceback in newer python versions.
+# Hack to silence atexit traceback in some Python versions
 try:
     import multiprocessing
 except ImportError:
@@ -191,8 +191,11 @@ ext_modules = [Extension('bson._cbson',
 
 extra_opts = {
     "packages": ["bson", "pymongo", "gridfs"],
-    "test_suite": "nose.collector"
+    "test_suite": "test.test_suite"
 }
+if sys.version_info[:2] == (2, 6):
+    extra_opts['tests_require'] = "unittest2"
+
 if "--no_ext" in sys.argv:
     sys.argv.remove("--no_ext")
 elif (sys.platform.startswith("java") or
@@ -228,7 +231,6 @@ setup(
     keywords=["mongo", "mongodb", "pymongo", "gridfs", "bson"],
     install_requires=[],
     license="Apache License, Version 2.0",
-    tests_require=["nose"],
     classifiers=[
         "Development Status :: 5 - Production/Stable",
         "Intended Audience :: Developers",
diff --git a/test/__init__.py b/test/__init__.py
index 1f3fe3e23..67ddc9bbd 100644
--- a/test/__init__.py
+++ b/test/__init__.py
@@ -12,15 +12,22 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-"""Clean up databases after running `nosetests`.
+"""Test suite for pymongo, bson, and gridfs.
 """
 
 import os
+import sys
+if sys.version_info[:2] == (2, 6):
+    import unittest2 as unittest
+    from unittest2.case import SkipTest
+else:
+    import unittest
+    from unittest import SkipTest
 import warnings
 
-from bson.py3compat import _unicode
 import pymongo
-from pymongo.errors import ConnectionFailure
+
+from bson.py3compat import _unicode
 
 # hostnames retrieved by MongoReplicaSetClient from isMaster will be of unicode
 # type in Python 2, so ensure these hostnames are unicodes, too. It makes tests
@@ -35,9 +42,10 @@ port2 = int(os.environ.get("DB_PORT2", 27018))
 host3 = _unicode(os.environ.get("DB_IP3", 'localhost'))
 port3 = int(os.environ.get("DB_PORT3", 27019))
 
-# Make sure warnings are always raised, regardless of
-# python version.
+
 def setup():
+    # Make sure warnings are always raised, regardless of
+    # python version.
     warnings.resetwarnings()
     warnings.simplefilter("always")
 
@@ -45,7 +53,7 @@ def setup():
 def teardown():
     try:
         c = pymongo.MongoClient(host, port)
-    except ConnectionFailure:
+    except pymongo.errors.ConnectionFailure:
         # Tests where ssl=True can cause connection failures here.
         # Ignore and continue.
         return
@@ -56,3 +64,21 @@ def teardown():
     c.drop_database("pymongo_test2")
     c.drop_database("pymongo_test_mike")
     c.drop_database("pymongo_test_bernie")
+
+
+class PymongoTestSuite(unittest.TestSuite):
+    """Run package-level setup and teardown functions.
+
+    This functionality was built into nose, but doesn't exist in
+    unittest.
+    """
+    def run(self, result):
+        setup()
+        super(PymongoTestSuite, self).run(result)
+        teardown()
+
+
+class PymongoTestLoader(unittest.TestLoader):
+    suiteClass = PymongoTestSuite
+
+test_suite = PymongoTestLoader().discover('.')
diff --git a/test/high_availability/test_ha.py b/test/high_availability/test_ha.py
index 638aa0bce..197d42a64 100644
--- a/test/high_availability/test_ha.py
+++ b/test/high_availability/test_ha.py
@@ -20,12 +20,10 @@
 # given replica-set configuration.
 
 import time
-import unittest
 
 import ha_tools
 from ha_tools import use_greenlets
 
-from nose.plugins.skip import SkipTest
 from pymongo.errors import (AutoReconnect,
                             OperationFailure,
                             ConnectionFailure,
@@ -36,7 +34,7 @@ from pymongo.mongo_replica_set_client import MongoReplicaSetClient
 from pymongo.mongo_client import MongoClient, _partition_node
 from pymongo.read_preferences import ReadPreference
 
-from test import utils, version
+from test import SkipTest, unittest, utils, version
 from test.utils import one
 
 
diff --git a/test/test_auth.py b/test/test_auth.py
index 6f4b37946..b7d432b9a 100644
--- a/test/test_auth.py
+++ b/test/test_auth.py
@@ -17,7 +17,6 @@
 import os
 import sys
 import threading
-import unittest
 
 try:
     from urllib.parse import quote_plus
@@ -27,13 +26,11 @@ except ImportError:
 
 sys.path[0:0] = [""]
 
-from nose.plugins.skip import SkipTest
-
 from pymongo import MongoClient, MongoReplicaSetClient
 from pymongo.auth import HAVE_KERBEROS
 from pymongo.errors import OperationFailure, ConfigurationError
 from pymongo.read_preferences import ReadPreference
-from test import version, host, port
+from test import host, port, SkipTest, unittest, version
 from test.utils import is_mongos, server_started_with_auth
 
 # YOU MUST RUN KINIT BEFORE RUNNING GSSAPI TESTS.
diff --git a/test/test_binary.py b/test/test_binary.py
index 08a514747..9e6470dc6 100644
--- a/test/test_binary.py
+++ b/test/test_binary.py
@@ -18,7 +18,6 @@ import base64
 import copy
 import pickle
 import sys
-import unittest
 import uuid
 
 sys.path[0:0] = [""]
@@ -28,10 +27,11 @@ import bson
 from bson.binary import *
 from bson.py3compat import u
 from bson.son import SON
-from nose.plugins.skip import SkipTest
+from test import unittest
 from test.test_client import get_client
 from pymongo.mongo_client import MongoClient
 
+
 class TestBinary(unittest.TestCase):
     def test_binary(self):
         a_string = "hello world"
diff --git a/test/test_bson.py b/test/test_bson.py
index c4e27e33b..07f2d90c5 100644
--- a/test/test_bson.py
+++ b/test/test_bson.py
@@ -20,13 +20,10 @@ import datetime
 import re
 import sys
 import traceback
-import unittest
 import uuid
 
 sys.path[0:0] = [""]
 
-from nose.plugins.skip import SkipTest
-
 import bson
 from bson import (BSON,
                   decode_all,
@@ -47,7 +44,7 @@ from bson.min_key import MinKey
 from bson.tz_util import (FixedOffset,
                           utc)
 
-from test import qcheck
+from test import qcheck, SkipTest, unittest
 
 if PY3:
     long = int
diff --git a/test/test_bulk.py b/test/test_bulk.py
index ee2163f60..ce3f611eb 100644
--- a/test/test_bulk.py
+++ b/test/test_bulk.py
@@ -15,22 +15,20 @@
 """Test the bulk API."""
 
 import sys
-import unittest
-
-from nose.plugins.skip import SkipTest
 
 sys.path[0:0] = [""]
 
 from bson import InvalidDocument, SON
 from bson.py3compat import string_type
 from pymongo.errors import BulkWriteError, InvalidOperation, OperationFailure
-from test import version
+from test import SkipTest, unittest, version
 from test.test_client import get_client
 from test.utils import (oid_generated_on_client,
                         remove_all_users,
                         server_started_with_auth,
                         server_started_with_nojournal)
 
+
 class BulkTestBase(unittest.TestCase):
 
     def setUp(self):
diff --git a/test/test_client.py b/test/test_client.py
index 5f554504e..ad7b9ace8 100644
--- a/test/test_client.py
+++ b/test/test_client.py
@@ -20,12 +20,9 @@ import threading
 import socket
 import sys
 import time
-import unittest
 
 sys.path[0:0] = [""]
 
-from nose.plugins.skip import SkipTest
-
 from bson.py3compat import thread, u
 from bson.son import SON
 from bson.tz_util import utc
@@ -39,7 +36,7 @@ from pymongo.errors import (AutoReconnect,
                             InvalidName,
                             OperationFailure,
                             PyMongoError)
-from test import version, host, port, pair
+from test import host, pair, port, SkipTest, unittest, version
 from test.pymongo_mocks import MockClient
 from test.utils import (assertRaisesExactly,
                         delay,
diff --git a/test/test_code.py b/test/test_code.py
index c01fb26ba..02d524b3b 100644
--- a/test/test_code.py
+++ b/test/test_code.py
@@ -14,12 +14,12 @@
 
 """Tests for the Code wrapper."""
 
-import unittest
 import sys
 sys.path[0:0] = [""]
 
 from bson.code import Code
 from bson.py3compat import u
+from test import unittest
 
 
 class TestCode(unittest.TestCase):
diff --git a/test/test_collection.py b/test/test_collection.py
index 5f1da7f52..439d49e1f 100644
--- a/test/test_collection.py
+++ b/test/test_collection.py
@@ -21,12 +21,9 @@ import re
 import sys
 import threading
 import time
-import unittest
 import uuid
 import warnings
 
-from nose.plugins.skip import SkipTest
-
 sys.path[0:0] = [""]
 
 from bson.binary import Binary
@@ -54,8 +51,7 @@ from pymongo.errors import (DocumentTooLarge,
 from test.test_client import get_client
 from test.utils import (is_mongos, joinall, enable_text_search, get_pool,
                         oid_generated_on_client)
-from test import (qcheck,
-                  version)
+from test import qcheck, SkipTest, unittest, version
 
 
 class TestCollection(unittest.TestCase):
diff --git a/test/test_common.py b/test/test_common.py
index aaa960d16..a4d8a7904 100644
--- a/test/test_common.py
+++ b/test/test_common.py
@@ -15,14 +15,11 @@
 """Test the pymongo common module."""
 
 import sys
-import unittest
 import uuid
 import warnings
 
 sys.path[0:0] = [""]
 
-from nose.plugins.skip import SkipTest
-
 from bson.binary import UUIDLegacy, OLD_UUID_SUBTYPE, UUID_SUBTYPE
 from bson.code import Code
 from bson.objectid import ObjectId
@@ -30,7 +27,7 @@ from bson.son import SON
 from pymongo.mongo_client import MongoClient
 from pymongo.mongo_replica_set_client import MongoReplicaSetClient
 from pymongo.errors import ConfigurationError, OperationFailure
-from test import host, port, pair, version
+from test import pair, unittest, SkipTest, version
 from test.utils import drop_collections
 
 
diff --git a/test/test_cursor.py b/test/test_cursor.py
index 4cf6c3db7..af5c61c25 100644
--- a/test/test_cursor.py
+++ b/test/test_cursor.py
@@ -18,11 +18,8 @@ import itertools
 import random
 import re
 import sys
-import unittest
 sys.path[0:0] = [""]
 
-from nose.plugins.skip import SkipTest
-
 from bson.code import Code
 from bson.py3compat import u, PY3
 from bson.son import SON
@@ -36,7 +33,7 @@ from pymongo.database import Database
 from pymongo.errors import (InvalidOperation,
                             OperationFailure,
                             ExecutionTimeout)
-from test import version
+from test import SkipTest, unittest, version
 from test.test_client import get_client
 from test.utils import is_mongos, get_command_line, server_started_with_auth
 
diff --git a/test/test_database.py b/test/test_database.py
index 031dd0201..2762c57bb 100644
--- a/test/test_database.py
+++ b/test/test_database.py
@@ -21,9 +21,6 @@ import sys
 import warnings
 
 sys.path[0:0] = [""]
-import unittest
-
-from nose.plugins.skip import SkipTest
 
 from bson.code import Code
 from bson.regex import Regex
@@ -47,7 +44,7 @@ from pymongo.errors import (CollectionInvalid,
 from pymongo.son_manipulator import (AutoReference,
                                      NamespaceInjector,
                                      ObjectIdShuffler)
-from test import version
+from test import SkipTest, unittest, version
 from test.utils import (get_command_line, is_mongos,
                         remove_all_users, server_started_with_auth)
 from test.test_client import get_client
diff --git a/test/test_dbref.py b/test/test_dbref.py
index f4b3adee9..72ac5f908 100644
--- a/test/test_dbref.py
+++ b/test/test_dbref.py
@@ -15,13 +15,13 @@
 """Tests for the dbref module."""
 
 import pickle
-import unittest
 import sys
 sys.path[0:0] = [""]
 
 from bson.dbref import DBRef
 from bson.objectid import ObjectId
 from bson.py3compat import u
+from test import unittest
 
 from copy import deepcopy
 
diff --git a/test/test_errors.py b/test/test_errors.py
index 59416e521..5a8931d0a 100644
--- a/test/test_errors.py
+++ b/test/test_errors.py
@@ -14,12 +14,12 @@
 
 """Test the errors module."""
 
-import unittest
 import sys
 sys.path[0:0] = [""]
 
 from pymongo import MongoClient
 from pymongo.errors import PyMongoError
+from test import unittest
 
 
 class TestErrors(unittest.TestCase):
diff --git a/test/test_grid_file.py b/test/test_grid_file.py
index ec8dca925..3fa535abc 100644
--- a/test/test_grid_file.py
+++ b/test/test_grid_file.py
@@ -19,11 +19,8 @@
 
 import datetime
 import sys
-import unittest
 sys.path[0:0] = [""]
 
-from nose.plugins.skip import SkipTest
-
 from bson.objectid import ObjectId
 from bson.py3compat import u, StringIO
 from gridfs import GridFS
@@ -39,7 +36,7 @@ from gridfs.errors import (NoFile,
 from pymongo import MongoClient
 from pymongo.errors import ConnectionFailure
 from test.test_client import get_client
-from test import qcheck
+from test import qcheck, unittest
 
 
 class TestGridFile(unittest.TestCase):
diff --git a/test/test_gridfs.py b/test/test_gridfs.py
index 2c6a80912..99888bf18 100644
--- a/test/test_gridfs.py
+++ b/test/test_gridfs.py
@@ -25,7 +25,6 @@ from pymongo.read_preferences import ReadPreference
 from test.test_replica_set_client import TestReplicaSetClientBase
 
 import datetime
-import unittest
 import threading
 import time
 import gridfs
@@ -33,6 +32,7 @@ import gridfs
 from bson.py3compat import u, StringIO, string_type
 from gridfs.errors import (FileExists,
                            NoFile)
+from test import unittest
 from test.test_client import get_client
 from test.utils import joinall
 
diff --git a/test/test_json_util.py b/test/test_json_util.py
index 07be715ef..ed022e773 100644
--- a/test/test_json_util.py
+++ b/test/test_json_util.py
@@ -14,14 +14,11 @@
 
 """Test some utilities for working with JSON and PyMongo."""
 
-import unittest
 import datetime
 import re
 import sys
 import uuid
 
-from nose.plugins.skip import SkipTest
-
 sys.path[0:0] = [""]
 
 from bson import json_util
@@ -36,6 +33,7 @@ from bson.son import RE_TYPE
 from bson.timestamp import Timestamp
 from bson.tz_util import utc
 
+from test import SkipTest, unittest
 from test.test_client import get_client
 
 PY3 = sys.version_info[0] == 3
diff --git a/test/test_mongos_ha.py b/test/test_mongos_ha.py
index 3032f5a37..3bfb480f6 100644
--- a/test/test_mongos_ha.py
+++ b/test/test_mongos_ha.py
@@ -16,11 +16,11 @@
 
 import sys
 import threading
-import unittest
 
 sys.path[0:0] = [""]
 
 from pymongo.errors import AutoReconnect
+from test import unittest
 from test.pymongo_mocks import MockClient
 
 
diff --git a/test/test_objectid.py b/test/test_objectid.py
index 37f39a9bc..a8271cb75 100644
--- a/test/test_objectid.py
+++ b/test/test_objectid.py
@@ -16,18 +16,16 @@
 
 import datetime
 import pickle
-import unittest
 import sys
 import time
 sys.path[0:0] = [""]
 
-from nose.plugins.skip import SkipTest
-
 from bson.errors import InvalidId
 from bson.objectid import ObjectId
 from bson.py3compat import PY3, u, _unicode
 from bson.tz_util import (FixedOffset,
                           utc)
+from test import SkipTest, unittest
 
 
 def oid(x):
diff --git a/test/test_pooling.py b/test/test_pooling.py
index 28bbf0e2b..c09e1e046 100644
--- a/test/test_pooling.py
+++ b/test/test_pooling.py
@@ -16,14 +16,12 @@
 
 import sys
 import time
-import unittest
 
 sys.path[0:0] = [""]
 
 from bson.py3compat import thread
-from nose.plugins.skip import SkipTest
 
-from test import host, port
+from test import host, port, SkipTest, unittest
 from test.test_pooling_base import (
     _TestPooling, _TestMaxPoolSize, _TestMaxOpenSockets,
     _TestPoolSocketSharing, _TestWaitQueueMultiple, one)
diff --git a/test/test_pooling_base.py b/test/test_pooling_base.py
index 3d1130427..ac8850471 100644
--- a/test/test_pooling_base.py
+++ b/test/test_pooling_base.py
@@ -24,15 +24,13 @@ import time
 
 sys.path[0:0] = [""]
 
-from nose.plugins.skip import SkipTest
-
 import pymongo.pool
 from bson.py3compat import thread
 from pymongo.mongo_client import MongoClient
 from pymongo.pool import Pool, NO_REQUEST, NO_SOCKET_YET, SocketInfo
 from pymongo.errors import ConfigurationError, ConnectionFailure
 from pymongo.errors import ExceededMaxWaiters
-from test import version, host, port
+from test import version, host, port, SkipTest
 from test.test_client import get_client
 from test.utils import delay, is_mongos, one, get_pool
 
@@ -311,7 +309,7 @@ class CreateAndReleaseSocketNoRendezvous(MongoThread):
 class _TestPoolingBase(object):
     """Base class for all client-pool tests. Doesn't inherit from
     unittest.TestCase, and its name is prefixed with "_" to avoid being
-    run by nose. Real tests double-inherit from this base and from TestCase.
+    run by unittest. Real tests double-inherit from this base and from TestCase.
     """
     use_greenlets = False
 
diff --git a/test/test_pooling_gevent.py b/test/test_pooling_gevent.py
index 88bb2c083..276cc4f2a 100644
--- a/test/test_pooling_gevent.py
+++ b/test/test_pooling_gevent.py
@@ -17,13 +17,10 @@
 import gc
 import sys
 import time
-import unittest
-
-from nose.plugins.skip import SkipTest
 
 from pymongo import pool
 from pymongo.errors import ConfigurationError
-from test import host, port
+from test import host, port, SkipTest, unittest
 from test.utils import looplet
 from test.test_pooling_base import (
     _TestPooling, _TestMaxPoolSize, _TestMaxOpenSockets,
diff --git a/test/test_pymongo.py b/test/test_pymongo.py
index a861b1f78..fe499eda6 100644
--- a/test/test_pymongo.py
+++ b/test/test_pymongo.py
@@ -14,13 +14,13 @@
 
 """Test the pymongo module itself."""
 
-import unittest
 import os
 import sys
 sys.path[0:0] = [""]
 
 import pymongo
-from test import host, port
+from test import host, port, unittest
+
 
 class TestPyMongo(unittest.TestCase):
     def test_mongo_client_alias(self):
diff --git a/test/test_read_preferences.py b/test/test_read_preferences.py
index cf4826ab6..a296695c0 100644
--- a/test/test_read_preferences.py
+++ b/test/test_read_preferences.py
@@ -16,9 +16,6 @@
 import random
 
 import sys
-import unittest
-
-from nose.plugins.skip import SkipTest
 
 sys.path[0:0] = [""]
 
@@ -35,7 +32,7 @@ from pymongo.errors import ConfigurationError
 
 from test.test_replica_set_client import TestReplicaSetClientBase
 from test.test_client import get_client
-from test import version, utils, host, port
+from test import host, port, SkipTest, unittest, utils, version
 
 
 class TestReadPreferencesBase(TestReplicaSetClientBase):
diff --git a/test/test_replica_set_client.py b/test/test_replica_set_client.py
index 326bd56cc..624db2b7e 100644
--- a/test/test_replica_set_client.py
+++ b/test/test_replica_set_client.py
@@ -23,12 +23,9 @@ import sys
 import time
 import threading
 import traceback
-import unittest
 
 sys.path[0:0] = [""]
 
-from nose.plugins.skip import SkipTest
-
 from bson.py3compat import thread, u, _unicode
 from bson.son import SON
 from bson.tz_util import utc
@@ -43,7 +40,7 @@ from pymongo.errors import (AutoReconnect,
                             ConnectionFailure,
                             InvalidName,
                             OperationFailure, InvalidOperation)
-from test import version, port, pair
+from test import pair, port, SkipTest, unittest, version
 from test.pymongo_mocks import MockReplicaSetClient
 from test.utils import (
     delay, assertReadFrom, assertReadFromAll, read_from_which_host,
diff --git a/test/test_replica_set_reconfig.py b/test/test_replica_set_reconfig.py
index aeabf3e13..157a8d3f2 100644
--- a/test/test_replica_set_reconfig.py
+++ b/test/test_replica_set_reconfig.py
@@ -15,12 +15,12 @@
 """Test clients and replica set configuration changes, using mocks."""
 
 import sys
-import unittest
 
 sys.path[0:0] = [""]
 
 from pymongo.errors import ConfigurationError, ConnectionFailure
 from pymongo import ReadPreference
+from test import unittest
 from test.pymongo_mocks import MockClient, MockReplicaSetClient
 
 
diff --git a/test/test_son.py b/test/test_son.py
index 1d41cb97d..1b97f81b5 100644
--- a/test/test_son.py
+++ b/test/test_son.py
@@ -18,13 +18,12 @@ import copy
 import pickle
 import re
 import sys
-import unittest
-sys.path[0:0] = [""]
 
-from nose.plugins.skip import SkipTest
+sys.path[0:0] = [""]
 
 from bson.py3compat import b
 from bson.son import SON
+from test import SkipTest, unittest
 
 
 class TestSON(unittest.TestCase):
diff --git a/test/test_son_manipulator.py b/test/test_son_manipulator.py
index a3eebf7b2..9ed87dd15 100644
--- a/test/test_son_manipulator.py
+++ b/test/test_son_manipulator.py
@@ -15,7 +15,6 @@
 """Tests for SONManipulators.
 """
 
-import unittest
 import sys
 sys.path[0:0] = [""]
 
@@ -26,7 +25,7 @@ from pymongo.son_manipulator import (NamespaceInjector,
                                      ObjectIdShuffler,
                                      SONManipulator)
 from test.test_client import get_client
-from test import qcheck
+from test import qcheck, unittest
 
 
 class TestSONManipulator(unittest.TestCase):
diff --git a/test/test_ssl.py b/test/test_ssl.py
index b24c0a857..e510c2426 100644
--- a/test/test_ssl.py
+++ b/test/test_ssl.py
@@ -17,7 +17,6 @@
 import os
 import socket
 import sys
-import unittest
 
 try:
     from ssl import CertificateError
@@ -33,14 +32,12 @@ except ImportError:
     # Python 2
     from urllib import quote_plus
 
-from nose.plugins.skip import SkipTest
-
 from pymongo import MongoClient, MongoReplicaSetClient
 from pymongo.common import HAS_SSL
 from pymongo.errors import (ConfigurationError,
                             ConnectionFailure,
                             OperationFailure)
-from test import host, port, pair, version
+from test import host, pair, port, SkipTest, unittest, version
 from test.utils import server_started_with_auth, remove_all_users
 
 
diff --git a/test/test_thread_util.py b/test/test_thread_util.py
index 4e746a7b1..942c3b18a 100644
--- a/test/test_thread_util.py
+++ b/test/test_thread_util.py
@@ -18,18 +18,16 @@ import gc
 import sys
 import threading
 import time
-import unittest
 
 sys.path[0:0] = [""]
 
-from nose.plugins.skip import SkipTest
-
 from pymongo import thread_util
 if thread_util.have_gevent:
     import greenlet         # Plain greenlets.
     import gevent.greenlet  # Gevent's enhanced Greenlets.
     import gevent.hub
 
+from test import SkipTest, unittest
 from test.utils import looplet, my_partial, RendezvousThread
 
 
diff --git a/test/test_threads.py b/test/test_threads.py
index 0c95a4443..77443356a 100644
--- a/test/test_threads.py
+++ b/test/test_threads.py
@@ -14,12 +14,10 @@
 
 """Test that pymongo is thread safe."""
 
-import unittest
 import threading
 import traceback
 
-from nose.plugins.skip import SkipTest
-
+from test import SkipTest, unittest
 from test.utils import (joinall, remove_all_users,
                         server_started_with_auth, RendezvousThread)
 from test.test_client import get_client
@@ -161,10 +159,11 @@ class FindPauseFind(RendezvousThread):
 
 class BaseTestThreads(object):
     """
-    Base test class for TestThreads and TestThreadsReplicaSet. (This is not
-    itself a unittest.TestCase, otherwise it'd be run twice -- once when nose
-    imports this module, and once when nose imports
-    test_threads_replica_set_connection.py, which imports this module.)
+    Base test class for TestThreads and TestThreadsReplicaSet. (This
+    is not itself a unittest.TestCase, otherwise it'd be run twice --
+    once when unittest imports this module, and once when unittest
+    imports test_threads_replica_set_connection.py, which imports this
+    module.)
     """
     def setUp(self):
         self.db = self._get_client().pymongo_test
@@ -303,7 +302,7 @@ class BaseTestThreadsAuth(object):
     """
     Base test class for TestThreadsAuth and TestThreadsAuthReplicaSet. (This is
     not itself a unittest.TestCase, otherwise it'd be run twice -- once when
-    nose imports this module, and once when nose imports
+    unittest imports this module, and once when unittest imports
     test_threads_replica_set_connection.py, which imports this module.)
     """
     def _get_client(self):
diff --git a/test/test_threads_replica_set_client.py b/test/test_threads_replica_set_client.py
index 23b517670..42e050b0f 100644
--- a/test/test_threads_replica_set_client.py
+++ b/test/test_threads_replica_set_client.py
@@ -14,10 +14,9 @@
 
 """Test that pymongo is thread safe."""
 
-import unittest
-
 from pymongo.mongo_replica_set_client import MongoReplicaSetClient
 
+from test import unittest
 from test.test_threads import BaseTestThreads, BaseTestThreadsAuth
 from test.test_replica_set_client import TestReplicaSetClientBase, pair
 
diff --git a/test/test_timestamp.py b/test/test_timestamp.py
index 5a4930c3e..6636f3814 100644
--- a/test/test_timestamp.py
+++ b/test/test_timestamp.py
@@ -15,7 +15,6 @@
 """Tests for the Timestamp class."""
 
 import datetime
-import unittest
 import sys
 import copy
 import pickle
@@ -23,6 +22,7 @@ sys.path[0:0] = [""]
 
 from bson.timestamp import Timestamp
 from bson.tz_util import utc
+from test import unittest
 
 
 class TestTimestamp(unittest.TestCase):
diff --git a/test/test_uri_parser.py b/test/test_uri_parser.py
index bd4759056..e36a9ec55 100644
--- a/test/test_uri_parser.py
+++ b/test/test_uri_parser.py
@@ -15,7 +15,6 @@
 """Test the pymongo uri_parser module."""
 
 import copy
-import unittest
 import sys
 
 sys.path[0:0] = [""]
@@ -30,6 +29,7 @@ from pymongo.errors import ConfigurationError, InvalidURI
 from pymongo import ReadPreference
 from bson.binary import JAVA_LEGACY
 from bson.py3compat import string_type, _unicode
+from test import unittest
 
 
 class TestURI(unittest.TestCase):
diff --git a/test/utils.py b/test/utils.py
index 67faf55a3..b31288963 100644
--- a/test/utils.py
+++ b/test/utils.py
@@ -20,11 +20,10 @@ import struct
 import sys
 import threading
 
-from nose.plugins.skip import SkipTest
 from pymongo import MongoClient, MongoReplicaSetClient
 from pymongo.errors import AutoReconnect
 from pymongo.pool import NO_REQUEST, NO_SOCKET_YET, SocketInfo
-from test import host, port, version
+from test import host, port, SkipTest, version
 
 
 try: