diff -r 9beeb4c1375d Lib/optparse.py
--- a/Lib/optparse.py   Sat Oct 31 13:07:44 2015 -0700
+++ b/Lib/optparse.py   Sun Nov 01 15:24:51 2015 -0500
@@ -74,6 +74,11 @@
 
 import sys, os
 import textwrap
+import warnings
+
+warnings.warn("The optparse module is deprecated and will not be developed "
+              "further; development will continue with the argparse module.",
+              PendingDeprecationWarning, stacklevel=2)
 
 def _repr(self):
     return "<%s at 0x%x: %s>" % (self.__class__.__name__, id(self), self)
diff -r 9beeb4c1375d Lib/test/test_optparse.py
--- a/Lib/test/test_optparse.py Sat Oct 31 13:07:44 2015 -0700
+++ b/Lib/test/test_optparse.py Sun Nov 01 15:24:51 2015 -0500
@@ -16,12 +16,15 @@
 from test import support
 
 
-from optparse import make_option, Option, \
-     TitledHelpFormatter, OptionParser, OptionGroup, \
-     SUPPRESS_USAGE, OptionError, OptionConflictError, \
-     BadOptionError, OptionValueError, Values
-from optparse import _match_abbrev
-from optparse import _parse_num
+import warnings
+with warnings.catch_warnings():
+    warnings.simplefilter('ignore', PendingDeprecationWarning)
+    from optparse import make_option, Option, \
+         TitledHelpFormatter, OptionParser, OptionGroup, \
+         SUPPRESS_USAGE, OptionError, OptionConflictError, \
+         BadOptionError, OptionValueError, Values
+    from optparse import _match_abbrev
+    from optparse import _parse_num
 
 retype = type(re.compile(''))