diff --git a/Lib/test/test_cookielib.py b/Lib/test/test_cookielib.py
index d272d12..a6568d7 100644
--- a/Lib/test/test_cookielib.py
+++ b/Lib/test/test_cookielib.py
@@ -1760,7 +1760,7 @@
             key = "%s_after" % cookie.value
             counter[key] = counter[key] + 1
 
-            # a permanent cookie got lost accidently
+            # a permanent cookie got lost accidentally
         self.assertEqual(counter["perm_after"], counter["perm_before"])
             # a session cookie hasn't been cleared
         self.assertEqual(counter["session_after"], 0)
diff --git a/Lib/test/test_datetime.py b/Lib/test/test_datetime.py
index 19ffbcd..1f7fb776 100644
--- a/Lib/test/test_datetime.py
+++ b/Lib/test/test_datetime.py
@@ -882,7 +882,7 @@
         #self.assertRaises(ValueError, t.strftime, "%#")
 
         #oh well, some systems just ignore those invalid ones.
-        #at least, excercise them to make sure that no crashes
+        #at least, exercise them to make sure that no crashes
         #are generated
         for f in ["%e", "%", "%#"]:
             try:
@@ -1992,7 +1992,7 @@
                                          hour_byte + base[1:])
 
 # A mixin for classes with a tzinfo= argument.  Subclasses must define
-# theclass as a class atribute, and theclass(1, 1, 1, tzinfo=whatever)
+# theclass as a class attribute, and theclass(1, 1, 1, tzinfo=whatever)
 # must be legit (which is true for time and datetime).
 class TZInfoBase:
 
diff --git a/Lib/test/test_doctest.py b/Lib/test/test_doctest.py
index 4b27424..7cf7d06 100644
--- a/Lib/test/test_doctest.py
+++ b/Lib/test/test_doctest.py
@@ -322,7 +322,7 @@
     >>> test.lineno + e2.lineno
     26
 
-If the docstring contains inconsistant leading whitespace in the
+If the docstring contains inconsistent leading whitespace in the
 expected output of an example, then `DocTest` will raise a ValueError:
 
     >>> docstring = r'''
diff --git a/Lib/test/test_generators.py b/Lib/test/test_generators.py
index 27399f7..5e1a3e5 100644
--- a/Lib/test/test_generators.py
+++ b/Lib/test/test_generators.py
@@ -1094,7 +1094,7 @@
 
         # For each square, compute a bit vector of the columns and
         # diagonals it covers, and for each row compute a function that
-        # generates the possiblities for the columns in that row.
+        # generates the possibilities for the columns in that row.
         self.rowgenerators = []
         for i in rangen:
             rowuses = [(1L << j) |                  # column ordinal
diff --git a/Lib/test/test_hashlib.py b/Lib/test/test_hashlib.py
index 76be461..471ebb4 100644
--- a/Lib/test/test_hashlib.py
+++ b/Lib/test/test_hashlib.py
@@ -408,7 +408,7 @@
 
     pbkdf2_results = {
         "sha1": [
-            # offical test vectors from RFC 6070
+            # official test vectors from RFC 6070
             (unhexlify('0c60c80f961f0e71f3a9b524af6012062fe037a6'), None),
             (unhexlify('ea6c014dc72d6f8ccd1ed92ace1d41f0d8de8957'), None),
             (unhexlify('4b007901b765489abead49d926f721d065a429c1'), None),
diff --git a/Lib/test/test_set.py b/Lib/test/test_set.py
index 6baaccf..62b36bd 100644
--- a/Lib/test/test_set.py
+++ b/Lib/test/test_set.py
@@ -1740,7 +1740,7 @@
 
         # http://en.wikipedia.org/wiki/Cuboctahedron
         # 8 triangular faces and 6 square faces
-        # 12 indentical vertices each connecting a triangle and square
+        # 12 identical vertices each connecting a triangle and square
 
         g = cube(3)
         cuboctahedron = linegraph(g)            # V( --> {V1, V2, V3, V4}
diff --git a/Lib/test/test_socket.py b/Lib/test/test_socket.py
index 0ce80b9..4ae1e41 100644
--- a/Lib/test/test_socket.py
+++ b/Lib/test/test_socket.py
@@ -86,7 +86,7 @@
         clientTearDown ()
 
     Any new test functions within the class must then define
-    tests in pairs, where the test name is preceeded with a
+    tests in pairs, where the test name is preceded with a
     '_' to indicate the client portion of the test. Ex:
 
         def testFoo(self):
diff --git a/Lib/test/test_telnetlib.py b/Lib/test/test_telnetlib.py
index 6c122d7..1534e14 100644
--- a/Lib/test/test_telnetlib.py
+++ b/Lib/test/test_telnetlib.py
@@ -248,8 +248,8 @@
         func = getattr(telnet, func_name)
         self.assertRaises(EOFError, func)
 
-    # read_eager and read_very_eager make the same gaurantees
-    # (they behave differently but we only test the gaurantees)
+    # read_eager and read_very_eager make the same guarantees
+    # (they behave differently but we only test the guarantees)
     def test_read_very_eager_A(self):
         self._test_read_any_eager_A('read_very_eager')
     def test_read_very_eager_B(self):
diff --git a/Lib/test/test_winsound.py b/Lib/test/test_winsound.py
index 4208fe7..c94a4dc 100644
--- a/Lib/test/test_winsound.py
+++ b/Lib/test/test_winsound.py
@@ -159,7 +159,7 @@
             )
 
     def test_alias_fallback(self):
-        # In the absense of the ability to tell if a sound was actually
+        # In the absence of the ability to tell if a sound was actually
         # played, this test has two acceptable outcomes: success (no error,
         # sound was theoretically played; although as issue #19987 shows
         # a box without a soundcard can "succeed") or RuntimeError.  Any
diff --git a/Lib/test/test_zipfile.py b/Lib/test/test_zipfile.py
index 40033f2..4000b30 100644
--- a/Lib/test/test_zipfile.py
+++ b/Lib/test/test_zipfile.py
@@ -184,7 +184,7 @@
         for f in (TESTFN2, TemporaryFile(), StringIO()):
             self.zip_random_open_test(f, zipfile.ZIP_STORED)
 
-    def test_univeral_readaheads(self):
+    def test_universal_readaheads(self):
         f = StringIO()
 
         data = 'a\r\n' * 16 * 1024