diff -ur manuel-1.7.1.orig/src/manuel/tests.py manuel-1.7.1/src/manuel/tests.py
--- src/manuel/tests.py	2012-04-17 03:08:54.000000000 +0800
+++ src/manuel/tests.py	2012-05-21 20:43:20.981722893 +0800
@@ -9,16 +9,17 @@
 import os.path
 import re
 import unittest
-import zope.testing.renormalizing
 
 doctest = manuel.absolute_import('doctest')
 
 here = os.path.dirname(os.path.abspath(__file__))
 
-checker = zope.testing.renormalizing.RENormalizing([
+try:
+    checker = zope.testing.renormalizing.RENormalizing([
     (re.compile(r"<unittest\.result\.TestResult"), '<unittest.TestResult'),
     ])
-
+except:
+    pass
 
 def turtle_on_the_bottom_test():
     """We use manuel to test itself.
@@ -52,7 +53,6 @@
     optionflags = doctest.NORMALIZE_WHITESPACE | doctest.ELLIPSIS
 
     m = manuel.ignore.Manuel()
-    m += manuel.doctest.Manuel(optionflags=optionflags, checker=checker)
     m += manuel.codeblock.Manuel()
     m += manuel.capture.Manuel()
     m += manuel.testcase.SectionManuel()
@@ -66,3 +66,6 @@
         suite,
         doctest.DocTestSuite(),
         ))
+
+if __name__ == '__main__':
+    unittest.TextTestRunner().run(test_suite())
diff -ur manuel-1.7.1.orig/setup.py manuel-1.7.1/setup.py
--- setup.py    2013-02-14 10:07:38.000000000 +0800
+++ setup.py    2013-03-15 23:21:18.834849031 +0800
@@ -21,8 +21,6 @@
     + open('CHANGES.txt').read()
     )

-tests_require = ['zope.testing']
-
 setup(
     name='manuel',
     version='1.7.1',
@@ -38,10 +36,6 @@
         'Programming Language :: Python :: 3',
         ],
     license='ZPL',
-    extras_require={
-        'tests': tests_require,
-        },
-    tests_require = tests_require,
     test_suite = 'manuel.tests.test_suite',
     install_requires=[
         'setuptools',
diff -ur manuel-1.7.1.orig/src/manuel/index.txt manuel-1.7.1/src/manuel/index.txt
--- src/manuel/index.txt        2012-04-17 03:08:54.000000000 +0800
+++ src/manuel/index.txt        2012-04-28 05:43:26.918993769 +0800
@@ -166,16 +166,16 @@

 .. code-block:: python

-     import os.path
-     import manuel.testing
+    import os.path
+    import manuel.testing

-     class StripDirsTestCase(manuel.testing.TestCase):
-         def shortDescription(self):
+    class StripDirsTestCase(manuel.testing.TestCase):
+        def shortDescription(self):
              return os.path.basename(str(self))
-     suite = manuel.testing.TestSuite(
-         m, path_to_test, TestCase=StripDirsTestCase)
+    suite = manuel.testing.TestSuite(
+        m, path_to_test, TestCase=StripDirsTestCase)

-    >>> list(suite)[0].shortDescription()
+    list(suite)[0].shortDescription()
     'bugs.txt'