Add back in use of 3rd-party mock module for Python 3.5

Apparently there were some issues in the unitest.mock module in Python 3.5 (but not 3.4 or 3.6)

1 files changed, 7 insertions, 5 deletions

diff --git a/tests/test_cmd2.py b/tests/test_cmd2.py
index 2da75f93..04498c49 100644
--- a/tests/test_cmd2.py
+++ b/tests/test_cmd2.py
@@ -6,20 +6,22 @@ Copyright 2016 Federico Ceratto <federico.ceratto@gmail.com>
 Released under MIT license, see LICENSE file
 """
 import argparse
+from code import InteractiveConsole
 import os
 import sys
 import io
 import tempfile
 
-from unittest import mock
 import pytest
 import six
-
-from code import InteractiveConsole
-
-# Used for sm.input: raw_input() for Python 2 or input() for Python 3
 import six.moves as sm
 
+# Python 3.5 had some regressions in the unitest.mock module, so use 3rd party mock if available
+try:
+    import mock
+except ImportError:
+    from unittest import mock
+
 import cmd2
 from conftest import run_cmd, normalize, BASE_HELP, BASE_HELP_VERBOSE, \
     HELP_HISTORY, SHORTCUTS_TXT, SHOW_TXT, SHOW_LONG, StdOut