#18741: fix more typos. Patch by Févry Thibault.

Lib/unittest/test/test_case.py

@@ -1054,7 +1054,7 @@ test case
                 self.assertWarns(DeprecationWarning, _runtime_warn)
 
     def testAssertWarnsContext(self):
-        # Believe it or not, it is preferrable to duplicate all tests above,
+        # Believe it or not, it is preferable to duplicate all tests above,
         # to make sure the __warningregistry__ $@ is circumvented correctly.
         def _runtime_warn():
             warnings.warn("foo", RuntimeWarning)

Lib/unittest/test/test_loader.py

@@ -324,7 +324,7 @@ class Test_TestLoader(unittest.TestCase):
     # Does loadTestsFromName raise TypeError when the `module` argument
     # isn't a module object?
     #
-    # XXX Accepts the not-a-module object, ignorning the object's type
+    # XXX Accepts the not-a-module object, ignoring the object's type
     # This should raise an exception or the method name should be changed
     #
     # XXX Some people are relying on this, so keep it for now

Lib/unittest/test/test_program.py

@@ -330,7 +330,7 @@ class TestCommandLineArgs(unittest.TestCase):
         self.assertEqual(program.testNames, argv[1:])
 
         # it may be better to use platform specific functions to normalise paths
-        # rather than accepting '.PY' and '\' as file seprator on Linux / Mac
+        # rather than accepting '.PY' and '\' as file separator on Linux / Mac
         # it would also be better to check that a filename is a valid module
         # identifier (we have a regex for this in loader.py)
         # for invalid filenames should we raise a useful error rather than