Use standard doctest module

src/zc/buildout/tests.py

@@ -11,7 +11,7 @@
 # FOR A PARTICULAR PURPOSE.
 #
 ##############################################################################
-from zope.testing import doctest
+import doctest
 from zope.testing import renormalizing
 import os
 import pkg_resources

src/zc/buildout/testselectingpython.py

@@ -11,8 +11,8 @@
 # FOR A PARTICULAR PURPOSE.
 #
 ##############################################################################
-import os, re, subprocess, sys, textwrap, unittest
-from zope.testing import doctest, renormalizing
+import os, re, subprocess, sys, textwrap, unittest, doctest
+from zope.testing import renormalizing
 import zc.buildout.tests
 import zc.buildout.testing
 

z3c.recipe.scripts_/src/z3c/recipe/scripts/tests.py

@@ -17,8 +17,8 @@ import zc.buildout.tests
 import zc.buildout.testselectingpython
 import zc.buildout.testing
 
-import unittest
-from zope.testing import doctest, renormalizing
+import unittest, doctest
+from zope.testing import renormalizing
 
 # We do not explicitly test the recipe support for the ``eggs``,
 # ``find-links``, and ``index`` options because they are used for most or

zc.recipe.egg_/src/zc/recipe/egg/tests.py

@@ -17,8 +17,8 @@ import zc.buildout.tests
 import zc.buildout.testselectingpython
 import zc.buildout.testing
 
-import unittest
-from zope.testing import doctest, renormalizing
+import unittest, doctest
+from zope.testing import renormalizing
 
 os_path_sep = os.path.sep
 if os_path_sep == '\\':