Issue #21408: The default __ne__() now returns NotImplemented if __eq__()

returned NotImplemented.  Removed incorrect implementations of __ne__().

1 files changed, 0 insertions, 9 deletions

diff --git a/Lib/doctest.py b/Lib/doctest.py
index bb9f432..7d5bcf4 100644
--- a/Lib/doctest.py
+++ b/Lib/doctest.py
@@ -481,9 +481,6 @@ class Example:
                self.options == other.options and \
                self.exc_msg == other.exc_msg
 
-    def __ne__(self, other):
-        return not self == other
-
     def __hash__(self):
         return hash((self.source, self.want, self.lineno, self.indent,
                      self.exc_msg))
@@ -548,9 +545,6 @@ class DocTest:
                self.filename == other.filename and \
                self.lineno == other.lineno
 
-    def __ne__(self, other):
-        return not self == other
-
     def __hash__(self):
         return hash((self.docstring, self.name, self.filename, self.lineno))
 
@@ -2291,9 +2285,6 @@ class DocTestCase(unittest.TestCase):
                self._dt_tearDown == other._dt_tearDown and \
                self._dt_checker == other._dt_checker
 
-    def __ne__(self, other):
-        return not self == other
-
     def __hash__(self):
         return hash((self._dt_optionflags, self._dt_setUp, self._dt_tearDown,
                      self._dt_checker))