[3.10] bpo-45060: Get rid of few uses of the equality operators with None (GH-28087). (GH-28092)

(cherry picked from commit 3c65457156d87e55010507d616b4eecb7a02883d)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

3 files changed, 3 insertions, 3 deletions

diff --git a/Lib/test/datetimetester.py b/Lib/test/datetimetester.py
index 316cf0b..6414f1a 100644
--- a/Lib/test/datetimetester.py
+++ b/Lib/test/datetimetester.py
@@ -344,7 +344,7 @@ class TestTimeZone(unittest.TestCase):
         with self.assertRaises(TypeError): timezone(ZERO) < timezone(ZERO)
         self.assertIn(timezone(ZERO), {timezone(ZERO)})
         self.assertTrue(timezone(ZERO) != None)
-        self.assertFalse(timezone(ZERO) ==  None)
+        self.assertFalse(timezone(ZERO) == None)
 
         tz = timezone(ZERO)
         self.assertTrue(tz == ALWAYS_EQ)
diff --git a/Lib/test/test_pty.py b/Lib/test/test_pty.py
index e2e9475..0c17812 100644
--- a/Lib/test/test_pty.py
+++ b/Lib/test/test_pty.py
@@ -136,7 +136,7 @@ class PtyTest(unittest.TestCase):
             mode = None
 
         new_stdin_winsz = None
-        if self.stdin_rows != None and self.stdin_cols != None:
+        if self.stdin_rows is not None and self.stdin_cols is not None:
             try:
                 # Modify pty.STDIN_FILENO window size; we need to
                 # check if pty.openpty() is able to set pty slave
diff --git a/Lib/test/test_type_annotations.py b/Lib/test/test_type_annotations.py
index f6c99bd..87f46c2c 100644
--- a/Lib/test/test_type_annotations.py
+++ b/Lib/test/test_type_annotations.py
@@ -71,7 +71,7 @@ class TypeAnnotationTests(unittest.TestCase):
 
             @__annotations__.deleter
             def __annotations__(self):
-                if hasattr(self, 'my_annotations') and self.my_annotations == None:
+                if getattr(self, 'my_annotations', False) is None:
                     raise AttributeError('__annotations__')
                 self.my_annotations = None