diff --git a/Lib/test/libregrtest/win_utils.py b/Lib/test/libregrtest/win_utils.py
index adfe278..0e6bfa8 100644
--- a/Lib/test/libregrtest/win_utils.py
+++ b/Lib/test/libregrtest/win_utils.py
@@ -18,7 +18,7 @@
 class WindowsLoadTracker():
     """
     This class asynchronously interacts with the `typeperf` command to read
-    the system load on Windows. Mulitprocessing and threads can't be used
+    the system load on Windows. Multiprocessing and threads can't be used
     here because they interfere with the test suite's cases for those
     modules.
     """
diff --git a/Lib/test/test_ast.py b/Lib/test/test_ast.py
index 5c37a5f..f35d9e6 100644
--- a/Lib/test/test_ast.py
+++ b/Lib/test/test_ast.py
@@ -551,7 +551,7 @@
             compile(m, "<test>", "exec")
         self.assertIn("but got <_ast.expr", str(cm.exception))
 
-    def test_invalid_identitifer(self):
+    def test_invalid_identifier(self):
         m = ast.Module([ast.Expr(ast.Name(42, ast.Load()))], [])
         ast.fix_missing_locations(m)
         with self.assertRaises(TypeError) as cm:
diff --git a/Lib/test/test_cmd_line_script.py b/Lib/test/test_cmd_line_script.py
index 80198f8..c8bf8af 100644
--- a/Lib/test/test_cmd_line_script.py
+++ b/Lib/test/test_cmd_line_script.py
@@ -714,7 +714,7 @@
     def test_nonexisting_script(self):
         # bpo-34783: "./python script.py" must not crash
         # if the script file doesn't exist.
-        # (Skip test for macOS framework builds because sys.excutable name
+        # (Skip test for macOS framework builds because sys.executable name
         #  is not the actual Python executable file name.
         script = 'nonexistingscript.py'
         self.assertFalse(os.path.exists(script))
diff --git a/Lib/test/test_collections.py b/Lib/test/test_collections.py
index e532be6..0119c77 100644
--- a/Lib/test/test_collections.py
+++ b/Lib/test/test_collections.py
@@ -424,8 +424,8 @@
 
         self.assertIsInstance(p, tuple)
         self.assertEqual(p, (11, 22))                                       # matches a real tuple
-        self.assertEqual(tuple(p), (11, 22))                                # coercable to a real tuple
-        self.assertEqual(list(p), [11, 22])                                 # coercable to a list
+        self.assertEqual(tuple(p), (11, 22))                                # coercible to a real tuple
+        self.assertEqual(list(p), [11, 22])                                 # coercible to a list
         self.assertEqual(max(p), 22)                                        # iterable
         self.assertEqual(max(*p), 22)                                       # star-able
         x, y = p
diff --git a/Lib/test/test_compileall.py b/Lib/test/test_compileall.py
index 04f6e1e..99d8437 100644
--- a/Lib/test/test_compileall.py
+++ b/Lib/test/test_compileall.py
@@ -578,14 +578,14 @@
             self.assertEqual(compile_dir.call_args[-1]['workers'], 0)
 
 
-class CommmandLineTestsWithSourceEpoch(CommandLineTestsBase,
+class CommandLineTestsWithSourceEpoch(CommandLineTestsBase,
                                        unittest.TestCase,
                                        metaclass=SourceDateEpochTestMeta,
                                        source_date_epoch=True):
     pass
 
 
-class CommmandLineTestsNoSourceEpoch(CommandLineTestsBase,
+class CommandLineTestsNoSourceEpoch(CommandLineTestsBase,
                                      unittest.TestCase,
                                      metaclass=SourceDateEpochTestMeta,
                                      source_date_epoch=False):
diff --git a/Lib/test/test_doctest.py b/Lib/test/test_doctest.py
index 5ea18f5..f7c399e 100644
--- a/Lib/test/test_doctest.py
+++ b/Lib/test/test_doctest.py
@@ -2485,7 +2485,7 @@
 
 def test_testfile(): r"""
 Tests for the `testfile()` function.  This function runs all the
-doctest examples in a given file.  In its simple invokation, it is
+doctest examples in a given file.  In its simple invocation, it is
 called with the name of a file, which is taken to be relative to the
 calling module.  The return value is (#failures, #tests).
 
diff --git a/Lib/test/test_email/test__header_value_parser.py b/Lib/test/test_email/test__header_value_parser.py
index 877cd3e..f6e5886 100644
--- a/Lib/test/test_email/test__header_value_parser.py
+++ b/Lib/test/test_email/test__header_value_parser.py
@@ -297,7 +297,7 @@
             [],
             '')
 
-    def test_get_unstructured_invaild_ew(self):
+    def test_get_unstructured_invalid_ew(self):
         self._test_get_x(self._get_unst,
             '=?test val',
             '=?test val',
diff --git a/Lib/test/test_email/test_email.py b/Lib/test/test_email/test_email.py
index aa77588..ae96258 100644
--- a/Lib/test/test_email/test_email.py
+++ b/Lib/test/test_email/test_email.py
@@ -1008,7 +1008,7 @@
 Subject: the first part of this is short,
  but_the_second_part_does_not_fit_within_maxlinelen_and_thus_should_be_on_a_line_all_by_itself""")
 
-    def test_splittable_leading_char_followed_by_overlong_unsplitable(self):
+    def test_splittable_leading_char_followed_by_overlong_unsplittable(self):
         eq = self.ndiffAssertEqual
         h = Header(', but_the_second'
             '_part_does_not_fit_within_maxlinelen_and_thus_should_be_on_a_line'
@@ -1017,7 +1017,7 @@
 ,
  but_the_second_part_does_not_fit_within_maxlinelen_and_thus_should_be_on_a_line_all_by_itself""")
 
-    def test_multiple_splittable_leading_char_followed_by_overlong_unsplitable(self):
+    def test_multiple_splittable_leading_char_followed_by_overlong_unsplittable(self):
         eq = self.ndiffAssertEqual
         h = Header(', , but_the_second'
             '_part_does_not_fit_within_maxlinelen_and_thus_should_be_on_a_line'
@@ -1026,14 +1026,14 @@
 , ,
  but_the_second_part_does_not_fit_within_maxlinelen_and_thus_should_be_on_a_line_all_by_itself""")
 
-    def test_trailing_splitable_on_overlong_unsplitable(self):
+    def test_trailing_splittable_on_overlong_unsplittable(self):
         eq = self.ndiffAssertEqual
         h = Header('this_part_does_not_fit_within_maxlinelen_and_thus_should_'
             'be_on_a_line_all_by_itself;')
         eq(h.encode(), "this_part_does_not_fit_within_maxlinelen_and_thus_should_"
             "be_on_a_line_all_by_itself;")
 
-    def test_trailing_splitable_on_overlong_unsplitable_with_leading_splitable(self):
+    def test_trailing_splittable_on_overlong_unsplittable_with_leading_splittable(self):
         eq = self.ndiffAssertEqual
         h = Header('; '
             'this_part_does_not_fit_within_maxlinelen_and_thus_should_'
@@ -1466,7 +1466,7 @@
         g.flatten(msg)
         self.assertEqual(b.getvalue(), source + b'>From R\xc3\xb6lli\n')
 
-    def test_mutltipart_with_bad_bytes_in_cte(self):
+    def test_multipart_with_bad_bytes_in_cte(self):
         # bpo30835
         source = textwrap.dedent("""\
             From: aperson@example.com
diff --git a/Lib/test/test_importlib/util.py b/Lib/test/test_importlib/util.py
index 196ea1c..913db4b 100644
--- a/Lib/test/test_importlib/util.py
+++ b/Lib/test/test_importlib/util.py
@@ -488,7 +488,7 @@
             self.execute(data01, full_path)
 
     def test_relative_path(self):
-        # A reative path is a ValueError.
+        # A relative path is a ValueError.
         with self.assertRaises(ValueError):
             self.execute(data01, '../data01/utf-8.file')
 
diff --git a/Lib/test/test_mailbox.py b/Lib/test/test_mailbox.py
index 0995b1e..36a2653 100644
--- a/Lib/test/test_mailbox.py
+++ b/Lib/test/test_mailbox.py
@@ -1420,7 +1420,7 @@
         # Initialize with invalid argument
         self.assertRaises(TypeError, lambda: self._factory(object()))
 
-    def test_all_eMM_attribues_exist(self):
+    def test_all_eMM_attributes_exist(self):
         # Issue 12537
         eMM = email.message_from_string(_sample_message)
         msg = self._factory(_sample_message)
diff --git a/Lib/test/test_pdb.py b/Lib/test/test_pdb.py
index d03f1b2..1e464df 100644
--- a/Lib/test/test_pdb.py
+++ b/Lib/test/test_pdb.py
@@ -983,7 +983,7 @@
 
 def test_pdb_until_command_for_generator():
     """Testing no unwindng stack on yield for generators
-       for "until" command if target breakpoing is not reached
+       for "until" command if target breakpoint is not reached
 
     >>> def test_gen():
     ...     yield 0
@@ -1027,7 +1027,7 @@
 
 def test_pdb_until_command_for_coroutine():
     """Testing no unwindng stack for coroutines
-       for "until" command if target breakpoing is not reached
+       for "until" command if target breakpoint is not reached
 
     >>> import asyncio
 
diff --git a/Lib/test/test_pprint.py b/Lib/test/test_pprint.py
index b3b8715..cf3e4f0 100644
--- a/Lib/test/test_pprint.py
+++ b/Lib/test/test_pprint.py
@@ -481,7 +481,7 @@
         # Consequently, this test is fragile and
         # implementation-dependent.  Small changes to Python's sort
         # algorithm cause the test to fail when it should pass.
-        # XXX Or changes to the dictionary implmentation...
+        # XXX Or changes to the dictionary implementation...
 
         cube_repr_tgt = """\
 {frozenset(): frozenset({frozenset({2}), frozenset({0}), frozenset({1})}),
diff --git a/Lib/test/test_subprocess.py b/Lib/test/test_subprocess.py
index e58d092..4fe74bf 100644
--- a/Lib/test/test_subprocess.py
+++ b/Lib/test/test_subprocess.py
@@ -1500,7 +1500,7 @@
     def test_run_with_pathlike_path(self):
         # bpo-31961: test run(pathlike_object)
         # the name of a command that can be run without
-        # any argumenets that exit fast
+        # any arguments that exit fast
         prog = 'tree.com' if mswindows else 'ls'
         path = shutil.which(prog)
         if path is None:
diff --git a/Lib/test/test_threading.py b/Lib/test/test_threading.py
index a04d496..a99b8ec 100644
--- a/Lib/test/test_threading.py
+++ b/Lib/test/test_threading.py
@@ -288,7 +288,7 @@
         finally:
             threading._start_new_thread = _start_new_thread
 
-    def test_finalize_runnning_thread(self):
+    def test_finalize_running_thread(self):
         # Issue 1402: the PyGILState_Ensure / _Release functions may be called
         # very late on python exit: on deallocation of a running thread for
         # example.
diff --git a/Lib/test/test_trace.py b/Lib/test/test_trace.py
index 912badb..7cda546 100644
--- a/Lib/test/test_trace.py
+++ b/Lib/test/test_trace.py
@@ -180,7 +180,7 @@
         firstlineno_called = get_firstlineno(traced_doubler)
         expected = {
             (self.my_py_filename, firstlineno_calling + 1): 1,
-            # List compehentions work differently in 3.x, so the count
+            # List comprehensions work differently in 3.x, so the count
             # below changed compared to 2.x.
             (self.my_py_filename, firstlineno_calling + 2): 12,
             (self.my_py_filename, firstlineno_calling + 3): 1,
diff --git a/Lib/test/test_turtle.py b/Lib/test/test_turtle.py
index 2fd10cc..38448c7 100644
--- a/Lib/test/test_turtle.py
+++ b/Lib/test/test_turtle.py
@@ -85,7 +85,7 @@
 
         self.assertEqual(parsed_cfg, expected)
 
-    def test_partial_config_dict_with_commments(self):
+    def test_partial_config_dict_with_comments(self):
 
         cfg_name = self.get_cfg_file(test_config_two)
         parsed_cfg = turtle.config_dict(cfg_name)
diff --git a/Lib/test/test_types.py b/Lib/test/test_types.py
index 56848c1..7b45b7a 100644
--- a/Lib/test/test_types.py
+++ b/Lib/test/test_types.py
@@ -466,7 +466,7 @@
 
         # No format code means use g, but must have a decimal
         # and a number after the decimal.  This is tricky, because
-        # a totaly empty format specifier means something else.
+        # a totally empty format specifier means something else.
         # So, just use a sign flag
         test(1e200, '+g', '+1e+200')
         test(1e200, '+', '+1e+200')
diff --git a/Lib/test/test_venv.py b/Lib/test/test_venv.py
index 228aa8d..9724d9e 100644
--- a/Lib/test/test_venv.py
+++ b/Lib/test/test_venv.py
@@ -345,7 +345,7 @@
         """
         Test that the multiprocessing is able to spawn.
         """
-        # Issue bpo-36342: Instanciation of a Pool object imports the
+        # Issue bpo-36342: Instantiation of a Pool object imports the
         # multiprocessing.synchronize module. Skip the test if this module
         # cannot be imported.
         import_module('multiprocessing.synchronize')