class MockModule(mock.Mock):
+--- urllib3-1.25.9/test/test_connection.py.orig 2020-04-16 14:42:30.000000000 +0200
++++ urllib3-1.25.9/test/test_connection.py 2020-06-07 22:20:50.841614447 +0200
+@@ -1,5 +1,8 @@
+ import datetime
+-import mock
++try:
++ import mock
++except ImportError:
++ from unittest import mock
+
+ import pytest
+
+--- urllib3-1.25.9/test/test_queue_monkeypatch.py.orig 2020-04-16 14:42:30.000000000 +0200
++++ urllib3-1.25.9/test/test_queue_monkeypatch.py 2020-06-07 22:31:23.954851245 +0200
+@@ -1,6 +1,9 @@
+ from __future__ import absolute_import
+
+-import mock
++try:
++ import mock
++except ImportError:
++ from unittest import mock
+
+ import pytest
+
+--- urllib3-1.25.9/test/test_response.py.orig 2020-04-16 14:42:30.000000000 +0200
++++ urllib3-1.25.9/test/test_response.py 2020-06-07 22:25:48.023337809 +0200
+@@ -7,7 +7,10 @@
+ from io import BytesIO, BufferedReader, TextIOWrapper
+
+ import pytest
+-import mock
++try:
++ import mock
++except ImportError:
++ from unittest import mock
+ import six
+
+ from urllib3.response import HTTPResponse, brotli
+--- urllib3-1.25.9/test/test_retry.py.orig 2020-04-16 14:42:30.000000000 +0200
++++ urllib3-1.25.9/test/test_retry.py 2020-06-07 22:21:45.327985936 +0200
+@@ -1,5 +1,8 @@
+ import datetime
+-import mock
++try:
++ import mock
++except ImportError:
++ from unittest import mock
+ import pytest
+ import time
+
+--- urllib3-1.25.9/test/test_ssl.py.orig 2020-04-16 14:42:30.000000000 +0200
++++ urllib3-1.25.9/test/test_ssl.py 2020-06-07 22:22:15.301156891 +0200
+@@ -1,4 +1,7 @@
+-import mock
++try:
++ import mock
++except ImportError:
++ from unittest import mock
+ import pytest
+ from urllib3.util import ssl_
+ from urllib3.exceptions import SNIMissingWarning
+--- urllib3-1.25.9/test/test_util.py.orig 2020-04-16 14:42:30.000000000 +0200
++++ urllib3-1.25.9/test/test_util.py 2020-06-07 22:21:18.341465468 +0200
+@@ -7,7 +7,10 @@
+ import socket
+ from itertools import chain
+
+-from mock import patch, Mock
++try:
++ from mock import patch, Mock
++except ImportError:
++ from unittest.mock import patch, Mock
+ import pytest
+
+ from urllib3 import add_stderr_logger, disable_warnings
+--- urllib3-1.25.9/test/contrib/test_pyopenssl.py.orig 2020-04-16 14:42:30.000000000 +0200
++++ urllib3-1.25.9/test/contrib/test_pyopenssl.py 2020-06-07 22:30:33.011793894 +0200
+@@ -1,7 +1,10 @@
+ # -*- coding: utf-8 -*-
+ import os
+
+-import mock
++try:
++ import mock
++except ImportError:
++ from unittest import mock
+ import pytest
+
+ try:
+--- urllib3-1.25.9/test/contrib/test_pyopenssl_dependencies.py.orig 2020-04-16 14:42:30.000000000 +0200
++++ urllib3-1.25.9/test/contrib/test_pyopenssl_dependencies.py 2020-06-07 22:31:07.291608185 +0200
+@@ -1,7 +1,10 @@
+ # -*- coding: utf-8 -*-
+ import pytest
+
+-from mock import patch, Mock
++try:
++ from mock import patch, Mock
++except ImportError:
++ from unittest.mock import patch, Mock
+
+ try:
+ from urllib3.contrib.pyopenssl import inject_into_urllib3, extract_from_urllib3
+--- urllib3-1.25.9/test/with_dummyserver/test_connectionpool.py.orig 2020-04-16 14:42:30.000000000 +0200
++++ urllib3-1.25.9/test/with_dummyserver/test_connectionpool.py 2020-06-07 22:20:19.205119170 +0200
+@@ -6,7 +6,10 @@
+ import warnings
+ import pytest
+
+-import mock
++try:
++ import mock
++except ImportError:
++ from unittest import mock
+
+ from .. import TARPIT_HOST, VALID_SOURCE_ADDRESSES, INVALID_SOURCE_ADDRESSES
+ from ..port_helpers import find_unused_port
+--- urllib3-1.25.9/test/with_dummyserver/test_https.py.orig 2020-04-16 14:42:30.000000000 +0200
++++ urllib3-1.25.9/test/with_dummyserver/test_https.py 2020-06-07 22:18:03.172522789 +0200
+@@ -8,7 +8,10 @@
+ import tempfile
+ import warnings
+
+-import mock
++try:
++ import mock
++except ImportError:
++ from unittest import mock
+ import pytest
+ import trustme
+
+--- urllib3-1.25.9/test/with_dummyserver/test_socketlevel.py.orig 2020-04-16 14:42:30.000000000 +0200
++++ urllib3-1.25.9/test/with_dummyserver/test_socketlevel.py 2020-06-07 22:18:29.705712380 +0200
+@@ -44,7 +44,10 @@
+ import shutil
+ import ssl
+ import tempfile
+-import mock
++try:
++ import mock
++except ImportError:
++ from unittest import mock
+
+ import pytest
+ import trustme