diff --git a/Doc/library/email.encoders.rst b/Doc/library/email.encoders.rst
index e4752a5..5d68b10 100644
--- a/Doc/library/email.encoders.rst
+++ b/Doc/library/email.encoders.rst
@@ -15,7 +15,7 @@
 This module is deprecated in Python 3.  The functions provided here
 should not be called explicitly since the :class:`~email.mime.text.MIMEText`
 class sets the content type and CTE header using the *_subtype* and *_charset*
-values passed during the instaniation of that class.
+values passed during the instantiation of that class.
 
 The remaining text in this section is the original documentation of the module.
 
diff --git a/Doc/library/statistics.rst b/Doc/library/statistics.rst
index a906a59..3a2a1f9 100644
--- a/Doc/library/statistics.rst
+++ b/Doc/library/statistics.rst
@@ -554,7 +554,7 @@
         >>> [round(q, 1) for q in quantiles(data, n=10)]
         [81.0, 86.2, 89.0, 99.4, 102.5, 103.6, 106.0, 109.8, 111.0]
 
-        >>> # Quartile cut points for the standard normal distibution
+        >>> # Quartile cut points for the standard normal distribution
         >>> Z = NormalDist()
         >>> [round(q, 4) for q in quantiles(Z, n=4)]
         [-0.6745, 0.0, 0.6745]
diff --git a/Include/abstract.h b/Include/abstract.h
index f36fafb..8951f63 100644
--- a/Include/abstract.h
+++ b/Include/abstract.h
@@ -702,7 +702,7 @@
      (PyList_Check(o) ? PyList_GET_ITEM(o, i) : PyTuple_GET_ITEM(o, i))
 
 /* Return a pointer to the underlying item array for
-   an object retured by PySequence_Fast */
+   an object returned by PySequence_Fast */
 #define PySequence_Fast_ITEMS(sf) \
     (PyList_Check(sf) ? ((PyListObject *)(sf))->ob_item \
                       : ((PyTupleObject *)(sf))->ob_item)
diff --git a/Include/ast.h b/Include/ast.h
index f1d7348..1347fcf 100644
--- a/Include/ast.h
+++ b/Include/ast.h
@@ -25,7 +25,7 @@
 PyAPI_FUNC(PyObject *) _PyAST_ExprAsUnicode(expr_ty);
 
 /* Return the borrowed reference to the first literal string in the
-   sequence of statemnts or NULL if it doesn't start from a literal string.
+   sequence of statements or NULL if it doesn't start from a literal string.
    Doesn't set exception. */
 PyAPI_FUNC(PyObject *) _PyAST_GetDocString(asdl_seq *);
 
diff --git a/Include/pymath.h b/Include/pymath.h
index 6cf69f9..f869724 100644
--- a/Include/pymath.h
+++ b/Include/pymath.h
@@ -125,7 +125,7 @@
 
 /* Py_IS_FINITE(X)
  * Return 1 if float or double arg is neither infinite nor NAN, else 0.
- * Some compilers (e.g. VisualStudio) have intrisics for this, so a special
+ * Some compilers (e.g. VisualStudio) have intrinsics for this, so a special
  * macro for this particular test is useful
  * Note: PC/pyconfig.h defines Py_IS_FINITE as _finite
  */
diff --git a/Lib/_pyio.py b/Lib/_pyio.py
index c355164..40e0c9f 100644
--- a/Lib/_pyio.py
+++ b/Lib/_pyio.py
@@ -1573,7 +1573,7 @@
                     raise IsADirectoryError(errno.EISDIR,
                                             os.strerror(errno.EISDIR), file)
             except AttributeError:
-                # Ignore the AttribueError if stat.S_ISDIR or errno.EISDIR
+                # Ignore the AttributeError if stat.S_ISDIR or errno.EISDIR
                 # don't exist.
                 pass
             self._blksize = getattr(fdfstat, 'st_blksize', 0)
diff --git a/Lib/asyncio/streams.py b/Lib/asyncio/streams.py
index 204eaf7..e56e2ef 100644
--- a/Lib/asyncio/streams.py
+++ b/Lib/asyncio/streams.py
@@ -556,7 +556,7 @@
             # Avoid inheritance from FlowControlMixin
             # Copy-paste the code to your project
             # if you need flow control helpers
-            warnings.warn(f"{self.__class__} should be instaniated "
+            warnings.warn(f"{self.__class__} should be instantiated "
                           "by asyncio internals only, "
                           "please avoid its creation from user code",
                           DeprecationWarning)
diff --git a/Lib/asyncio/subprocess.py b/Lib/asyncio/subprocess.py
index e6bec71..2a68c9e 100644
--- a/Lib/asyncio/subprocess.py
+++ b/Lib/asyncio/subprocess.py
@@ -130,7 +130,7 @@
 class Process:
     def __init__(self, transport, protocol, loop, *, _asyncio_internal=False):
         if not _asyncio_internal:
-            warnings.warn(f"{self.__class__} should be instaniated "
+            warnings.warn(f"{self.__class__} should be instantiated "
                           "by asyncio internals only, "
                           "please avoid its creation from user code",
                           DeprecationWarning)
diff --git a/Lib/imaplib.py b/Lib/imaplib.py
index 822d9d6..a4f4993 100644
--- a/Lib/imaplib.py
+++ b/Lib/imaplib.py
@@ -502,7 +502,7 @@
     def enable(self, capability):
         """Send an RFC5161 enable string to the server.
 
-        (typ, [data]) = <intance>.enable(capability)
+        (typ, [data]) = <instance>.enable(capability)
         """
         if 'ENABLE' not in self.capabilities:
             raise IMAP4.error("Server does not support ENABLE")
diff --git a/Lib/lib2to3/fixer_util.py b/Lib/lib2to3/fixer_util.py
index babe6cb..c2a3a47 100644
--- a/Lib/lib2to3/fixer_util.py
+++ b/Lib/lib2to3/fixer_util.py
@@ -412,7 +412,7 @@
     return None
 
 def _is_import_binding(node, name, package=None):
-    """ Will reuturn node if node will import name, or node
+    """ Will return node if node will import name, or node
         will import * from package.  None is returned otherwise.
         See test cases for examples. """
 
diff --git a/Lib/lib2to3/tests/test_parser.py b/Lib/lib2to3/tests/test_parser.py
index 01b2b51..f22d399 100644
--- a/Lib/lib2to3/tests/test_parser.py
+++ b/Lib/lib2to3/tests/test_parser.py
@@ -531,7 +531,7 @@
 
 # Adapted from Python 3's Lib/test/test_unicode_identifiers.py and
 # Lib/test/test_tokenize.py:TokenizeTest.test_non_ascii_identifiers
-class TestIdentfier(GrammarTest):
+class TestIdentifier(GrammarTest):
     def test_non_ascii_identifiers(self):
         self.validate("Örter = 'places'\ngrün = 'green'")
         self.validate("蟒 = a蟒 = 锦蛇 = 1")
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')
diff --git a/Lib/unittest/result.py b/Lib/unittest/result.py
index c7e3206..111317b 100644
--- a/Lib/unittest/result.py
+++ b/Lib/unittest/result.py
@@ -161,7 +161,7 @@
         """Tells whether or not this result was a success."""
         # The hasattr check is for test_result's OldResult test.  That
         # way this method works on objects that lack the attribute.
-        # (where would such result intances come from? old stored pickles?)
+        # (where would such result instances come from? old stored pickles?)
         return ((len(self.failures) == len(self.errors) == 0) and
                 (not hasattr(self, 'unexpectedSuccesses') or
                  len(self.unexpectedSuccesses) == 0))
diff --git a/Lib/unittest/test/testmock/testmock.py b/Lib/unittest/test/testmock/testmock.py
index 090da45..18efd31 100644
--- a/Lib/unittest/test/testmock/testmock.py
+++ b/Lib/unittest/test/testmock/testmock.py
@@ -262,7 +262,7 @@
 
         ret_val = mock(sentinel.Arg)
         self.assertTrue(mock.called, "called not set")
-        self.assertEqual(mock.call_count, 1, "call_count incoreect")
+        self.assertEqual(mock.call_count, 1, "call_count incorrect")
         self.assertEqual(mock.call_args, ((sentinel.Arg,), {}),
                          "call_args not set")
         self.assertEqual(mock.call_args.args, (sentinel.Arg,),
diff --git a/Misc/HISTORY b/Misc/HISTORY
index f4b756c..f49960c 100644
--- a/Misc/HISTORY
+++ b/Misc/HISTORY
@@ -2113,7 +2113,7 @@
 - Issue #21285: Refactor and fix curses configure check to always search
   in a ncursesw directory.
 
-- Issue #15234: For BerkelyDB and Sqlite, only add the found library and
+- Issue #15234: For BerkeleyDB and Sqlite, only add the found library and
   include directories if they aren't already being searched. This avoids
   an explicit runtime library dependency.
 
diff --git a/Misc/NEWS.d/3.5.0a1.rst b/Misc/NEWS.d/3.5.0a1.rst
index 62406e1..99f2d1d 100644
--- a/Misc/NEWS.d/3.5.0a1.rst
+++ b/Misc/NEWS.d/3.5.0a1.rst
@@ -4992,7 +4992,7 @@
 .. nonce: vlM720
 .. section: Build
 
-For BerkelyDB and Sqlite, only add the found library and include directories
+For BerkeleyDB and Sqlite, only add the found library and include directories
 if they aren't already being searched. This avoids an explicit runtime
 library dependency.
 
diff --git a/Misc/NEWS.d/3.7.0a1.rst b/Misc/NEWS.d/3.7.0a1.rst
index f9cd59c..bbd72d7 100644
--- a/Misc/NEWS.d/3.7.0a1.rst
+++ b/Misc/NEWS.d/3.7.0a1.rst
@@ -3067,7 +3067,7 @@
 .. section: Library
 
 Element.getiterator() and the html parameter of XMLParser() were deprecated
-only in the documentation (since Python 3.2 and 3.4 correspondintly). Now
+only in the documentation (since Python 3.2 and 3.4 correspondingly). Now
 using them emits a deprecation warning.
 
 ..
diff --git a/Misc/NEWS.d/3.8.0a1.rst b/Misc/NEWS.d/3.8.0a1.rst
index 3d37669..68217d3 100644
--- a/Misc/NEWS.d/3.8.0a1.rst
+++ b/Misc/NEWS.d/3.8.0a1.rst
@@ -2054,7 +2054,7 @@
 .. section: Library
 
 random.gammavariate(1.0, beta) now computes the same result as
-random.expovariate(1.0 / beta).  This synchonizes the two algorithms and
+random.expovariate(1.0 / beta).  This synchronizes the two algorithms and
 eliminates some idiosyncrasies in the old implementation.  It does however
 produce a difference stream of random variables than it used to.
 
diff --git a/Misc/NEWS.d/3.8.0a4.rst b/Misc/NEWS.d/3.8.0a4.rst
index 80e01d9..894ce0b 100644
--- a/Misc/NEWS.d/3.8.0a4.rst
+++ b/Misc/NEWS.d/3.8.0a4.rst
@@ -904,7 +904,7 @@
 .. nonce: B8-ghi
 .. section: Tests
 
-When using mulitprocessing mode (-jN), regrtest now better reports errors if
+When using multiprocessing mode (-jN), regrtest now better reports errors if
 a worker process fails, and it exits immediately on a worker thread failure
 or when interrupted.
 
diff --git a/Misc/NEWS.d/next/Core and Builtins/2019-06-10-23-18-31.bpo-37219.jPSufq.rst b/Misc/NEWS.d/next/Core and Builtins/2019-06-10-23-18-31.bpo-37219.jPSufq.rst
index ef8f52d..d45f086 100644
--- a/Misc/NEWS.d/next/Core and Builtins/2019-06-10-23-18-31.bpo-37219.jPSufq.rst
+++ b/Misc/NEWS.d/next/Core and Builtins/2019-06-10-23-18-31.bpo-37219.jPSufq.rst
@@ -1 +1 @@
-Remove errorneous optimization for empty set differences.
+Remove erroneous optimization for empty set differences.
diff --git a/Misc/NEWS.d/next/IDLE/2019-06-04-23-27-33.bpo-37039.FN_fBf.rst b/Misc/NEWS.d/next/IDLE/2019-06-04-23-27-33.bpo-37039.FN_fBf.rst
index 71c8c89..68d80ae 100644
--- a/Misc/NEWS.d/next/IDLE/2019-06-04-23-27-33.bpo-37039.FN_fBf.rst
+++ b/Misc/NEWS.d/next/IDLE/2019-06-04-23-27-33.bpo-37039.FN_fBf.rst
@@ -1,4 +1,4 @@
-Adjust "Zoom Height" to individual screens by momemtarily maximizing the
+Adjust "Zoom Height" to individual screens by momentarily maximizing the
 window on first use with a particular screen.  Changing screen settings
 may invalidate the saved height.  While a window is maximized,
 "Zoom Height" has no effect.
diff --git a/Misc/NEWS.d/next/Security/2019-07-16-08-11-00.bpo-37461.1Ahz7O.rst b/Misc/NEWS.d/next/Security/2019-07-16-08-11-00.bpo-37461.1Ahz7O.rst
index 4bfd350..9d47578 100644
--- a/Misc/NEWS.d/next/Security/2019-07-16-08-11-00.bpo-37461.1Ahz7O.rst
+++ b/Misc/NEWS.d/next/Security/2019-07-16-08-11-00.bpo-37461.1Ahz7O.rst
@@ -1,2 +1,2 @@
-Fix an inifite loop when parsing specially crafted email headers. Patch by
+Fix an infinite loop when parsing specially crafted email headers. Patch by
 Abhilash Raj.
diff --git a/Misc/NEWS.d/next/Tests/2019-06-04-18-30-39.bpo-37153.711INB.rst b/Misc/NEWS.d/next/Tests/2019-06-04-18-30-39.bpo-37153.711INB.rst
index 138a22f..706ebaa 100644
--- a/Misc/NEWS.d/next/Tests/2019-06-04-18-30-39.bpo-37153.711INB.rst
+++ b/Misc/NEWS.d/next/Tests/2019-06-04-18-30-39.bpo-37153.711INB.rst
@@ -1,2 +1,2 @@
-``test_venv.test_mutiprocessing()`` now explicitly calls
+``test_venv.test_multiprocessing()`` now explicitly calls
 ``pool.terminate()`` to wait until the pool completes.
diff --git a/Modules/_ctypes/libffi_osx/x86/x86-ffi64.c b/Modules/_ctypes/libffi_osx/x86/x86-ffi64.c
index f2610c1..8e7d0164 100644
--- a/Modules/_ctypes/libffi_osx/x86/x86-ffi64.c
+++ b/Modules/_ctypes/libffi_osx/x86/x86-ffi64.c
@@ -57,7 +57,7 @@
 	of SSESF, SSEDF classes, that are basically SSE class, just gcc will
 	use SF or DFmode move instead of DImode to avoid reformating penalties.
 
-	Similary we play games with INTEGERSI_CLASS to use cheaper SImode moves
+	Similarly we play games with INTEGERSI_CLASS to use cheaper SImode moves
 	whenever possible (upper half does contain padding).  */
 enum x86_64_reg_class
 {
diff --git a/Modules/_struct.c b/Modules/_struct.c
index d1c635a..ba8f9cd 100644
--- a/Modules/_struct.c
+++ b/Modules/_struct.c
@@ -361,8 +361,8 @@
 
    [bln][up]_TYPE
 
-   [bln] distiguishes among big-endian, little-endian and native.
-   [pu] distiguishes between pack (to struct) and unpack (from struct).
+   [bln] distinguishes among big-endian, little-endian and native.
+   [pu] distinguishes between pack (to struct) and unpack (from struct).
    TYPE is one of char, byte, ubyte, etc.
 */
 
diff --git a/Modules/cjkcodecs/README b/Modules/cjkcodecs/README
index b2370bc..8f08f2d 100644
--- a/Modules/cjkcodecs/README
+++ b/Modules/cjkcodecs/README
@@ -6,7 +6,7 @@
 
 
 
-Notes on implmentation characteristics of each codecs
+Notes on implementation characteristics of each codecs
 -----------------------------------------------------
 
 1) Big5 codec
diff --git a/Modules/clinic/posixmodule.c.h b/Modules/clinic/posixmodule.c.h
index 22cb947..aa1ab79 100644
--- a/Modules/clinic/posixmodule.c.h
+++ b/Modules/clinic/posixmodule.c.h
@@ -2817,7 +2817,7 @@
 "sched_getscheduler($module, pid, /)\n"
 "--\n"
 "\n"
-"Get the scheduling policy for the process identifiedy by pid.\n"
+"Get the scheduling policy for the process identified by pid.\n"
 "\n"
 "Passing 0 for pid returns the scheduling policy for the calling process.");
 
@@ -8741,4 +8741,4 @@
 #ifndef OS__REMOVE_DLL_DIRECTORY_METHODDEF
     #define OS__REMOVE_DLL_DIRECTORY_METHODDEF
 #endif /* !defined(OS__REMOVE_DLL_DIRECTORY_METHODDEF) */
-/*[clinic end generated code: output=b3ae8afd275ea5cd input=a9049054013a1b77]*/
+/*[clinic end generated code: output=1e001c855e011720 input=a9049054013a1b77]*/
diff --git a/Modules/expat/expat.h b/Modules/expat/expat.h
index c050f1d..56399da 100644
--- a/Modules/expat/expat.h
+++ b/Modules/expat/expat.h
@@ -265,7 +265,7 @@
 
 /* Prepare a parser object to be re-used.  This is particularly
    valuable when memory allocation overhead is disproportionately high,
-   such as when a large number of small documnents need to be parsed.
+   such as when a large number of small documents need to be parsed.
    All handlers are cleared from the parser, except for the
    unknownEncodingHandler. The parser's external state is re-initialized
    except for the values of ns and ns_triplets.
diff --git a/Modules/getpath.c b/Modules/getpath.c
index 4ddb663..2372172 100644
--- a/Modules/getpath.c
+++ b/Modules/getpath.c
@@ -95,7 +95,7 @@
  * process to find the installed Python tree.
  *
  * An embedding application can use Py_SetPath() to override all of
- * these authomatic path computations.
+ * these automatic path computations.
  *
  * NOTE: Windows MSVC builds use PC/getpathp.c instead!
  */
diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index 777e933..4f8c074 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -6112,14 +6112,14 @@
     pid: pid_t
     /
 
-Get the scheduling policy for the process identifiedy by pid.
+Get the scheduling policy for the process identified by pid.
 
 Passing 0 for pid returns the scheduling policy for the calling process.
 [clinic start generated code]*/
 
 static PyObject *
 os_sched_getscheduler_impl(PyObject *module, pid_t pid)
-/*[clinic end generated code: output=dce4c0bd3f1b34c8 input=5f14cfd1f189e1a0]*/
+/*[clinic end generated code: output=dce4c0bd3f1b34c8 input=8d99dac505485ac8]*/
 {
     int policy;
 
diff --git a/Objects/exceptions.c b/Objects/exceptions.c
index 568d495..ef9dd51 100644
--- a/Objects/exceptions.c
+++ b/Objects/exceptions.c
@@ -405,7 +405,7 @@
     BaseException_new,          /* tp_new */
 };
 /* the CPython API expects exceptions to be (PyObject *) - both a hold-over
-from the previous implmentation and also allowing Python objects to be used
+from the previous implementation and also allowing Python objects to be used
 in the API */
 PyObject *PyExc_BaseException = (PyObject *)&_PyExc_BaseException;
 
diff --git a/Objects/object.c b/Objects/object.c
index ee20506..7f2c23a 100644
--- a/Objects/object.c
+++ b/Objects/object.c
@@ -2072,7 +2072,7 @@
     tstate->trash_delete_later = op;
 }
 
-/* Dealloccate all the objects in the _PyTrash_delete_later list.  Called when
+/* Deallocate all the objects in the _PyTrash_delete_later list.  Called when
  * the call-stack unwinds again.
  */
 void
diff --git a/Objects/stringlib/unicode_format.h b/Objects/stringlib/unicode_format.h
index ddf1e26..b526ad2 100644
--- a/Objects/stringlib/unicode_format.h
+++ b/Objects/stringlib/unicode_format.h
@@ -828,7 +828,7 @@
         tmp = NULL;
     }
 
-    /* if needed, recurively compute the format_spec */
+    /* if needed, recursively compute the format_spec */
     if (format_spec_needs_expanding) {
         tmp = build_string(format_spec, args, kwargs, recursion_depth-1,
                            auto_number);
diff --git a/Objects/typeobject.c b/Objects/typeobject.c
index 8acf678..9e5709a 100644
--- a/Objects/typeobject.c
+++ b/Objects/typeobject.c
@@ -1369,7 +1369,7 @@
         return 0;
     }
     else
-        /* a is not completely initilized yet; follow tp_base */
+        /* a is not completely initialized yet; follow tp_base */
         return type_is_subtype_base_chain(a, b);
 }
 
diff --git a/PC/bdist_wininst/install.c b/PC/bdist_wininst/install.c
index 6d01ad5..0219a19 100644
--- a/PC/bdist_wininst/install.c
+++ b/PC/bdist_wininst/install.c
@@ -2540,7 +2540,7 @@
     if (!lines)
         return SystemError(0, "Out of memory");
 
-    /* Read the whole logfile, realloacting the buffer */
+    /* Read the whole logfile, reallocating the buffer */
     while (fgets(buffer, sizeof(buffer), logfile)) {
         int len = strlen(buffer);
         /* remove trailing white space */
diff --git a/PCbuild/readme.txt b/PCbuild/readme.txt
index 8cbb5d8..90aac3a 100644
--- a/PCbuild/readme.txt
+++ b/PCbuild/readme.txt
@@ -285,4 +285,4 @@
 project, with some projects overriding certain specific values. The GUI
 doesn't always reflect the correct settings and may confuse the user
 with false information, especially for settings that automatically adapt
-for diffirent configurations.
+for different configurations.
diff --git a/Python/ast.c b/Python/ast.c
index ce3b492..976be70 100644
--- a/Python/ast.c
+++ b/Python/ast.c
@@ -5256,7 +5256,7 @@
     *str += 1;
 
     /* If we're in = mode (detected by non-NULL expr_text), and have no format
-       spec and no explict conversion, set the conversion to 'r'. */
+       spec and no explicit conversion, set the conversion to 'r'. */
     if (*expr_text && format_spec == NULL && conversion == -1) {
         conversion = 'r';
     }
diff --git a/Python/bootstrap_hash.c b/Python/bootstrap_hash.c
index 43f5264..aa3a3df 100644
--- a/Python/bootstrap_hash.c
+++ b/Python/bootstrap_hash.c
@@ -163,7 +163,7 @@
             }
 
             /* getrandom(GRND_NONBLOCK) fails with EAGAIN if the system urandom
-               is not initialiazed yet. For _PyRandom_Init(), we ignore the
+               is not initialized yet. For _PyRandom_Init(), we ignore the
                error and fall back on reading /dev/urandom which never blocks,
                even if the system urandom is not initialized yet:
                see the PEP 524. */
diff --git a/Python/compile.c b/Python/compile.c
index 0336959..d2de7a7 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -1868,7 +1868,7 @@
                free variable that has the same name as a method,
                the name will be considered free *and* local in the
                class.  It should be handled by the closure, as
-               well as by the normal name loookup logic.
+               well as by the normal name lookup logic.
             */
             reftype = get_ref_type(c, name);
             if (reftype == CELL)
diff --git a/Python/getopt.c b/Python/getopt.c
index 1a7db3f..89f7734 100644
--- a/Python/getopt.c
+++ b/Python/getopt.c
@@ -20,7 +20,7 @@
  * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  *
  * Nevertheless, I would like to know about bugs in this library or
- * suggestions for improvment.  Send bug reports and feedback to
+ * suggestions for improvement.  Send bug reports and feedback to
  * davegottner@delphi.com.
  *---------------------------------------------------------------------------*/
 
diff --git a/Python/hamt.c b/Python/hamt.c
index b3cbf9a..28b4e1e 100644
--- a/Python/hamt.c
+++ b/Python/hamt.c
@@ -830,7 +830,7 @@
 
                Instead we start using an Array node, which has
                simpler (faster) implementation at the expense of
-               having prealocated 32 pointers for its keys/values
+               having preallocated 32 pointers for its keys/values
                pairs.
 
                Small hamt objects (<30 keys) usually don't have any
diff --git a/Python/import.c b/Python/import.c
index 15f1d94..9f5ec28 100644
--- a/Python/import.c
+++ b/Python/import.c
@@ -833,7 +833,7 @@
     }
     else {
         m = PyObject_GetItem(modules, name);
-        // For backward-comaptibility we copy the behavior
+        // For backward-compatibility we copy the behavior
         // of PyDict_GetItemWithError().
         if (_PyErr_ExceptionMatches(tstate, PyExc_KeyError)) {
             _PyErr_Clear(tstate);
diff --git a/Python/initconfig.c b/Python/initconfig.c
index 9247443..5bd7d4f 100644
--- a/Python/initconfig.c
+++ b/Python/initconfig.c
@@ -1068,7 +1068,7 @@
        or rather, to work around Apple's overly strict requirements of
        the process name. However, we still need a usable sys.executable,
        so the actual executable path is passed in an environment variable.
-       See Lib/plat-mac/bundlebuiler.py for details about the bootstrap
+       See Lib/plat-mac/bundlebuilder.py for details about the bootstrap
        script. */
     const char *p = config_get_env(config, "PYTHONEXECUTABLE");
     if (p != NULL) {
diff --git a/Python/pystate.c b/Python/pystate.c
index 1c3c0f4..3b2adf5 100644
--- a/Python/pystate.c
+++ b/Python/pystate.c
@@ -1499,7 +1499,7 @@
     // Switch to the original interpreter.
     PyInterpreterState *interp = _PyInterpreterState_LookUpID(data->interp);
     if (interp == NULL) {
-        // The intepreter was already destroyed.
+        // The interpreter was already destroyed.
         if (data->free != NULL) {
             // XXX Someone leaked some memory...
         }
diff --git a/Python/sysmodule.c b/Python/sysmodule.c
index 103a111..a89ebce 100644
--- a/Python/sysmodule.c
+++ b/Python/sysmodule.c
@@ -1162,7 +1162,7 @@
 PyDoc_STRVAR(asyncgen_hooks_doc,
 "asyncgen_hooks\n\
 \n\
-A struct sequence providing information about asynhronous\n\
+A struct sequence providing information about asynchronous\n\
 generators hooks.  The attributes are read only.");
 
 static PyStructSequence_Field asyncgen_hooks_fields[] = {
diff --git a/Tools/ssl/make_ssl_data.py b/Tools/ssl/make_ssl_data.py
index 3fb4985..fdabd5d 100755
--- a/Tools/ssl/make_ssl_data.py
+++ b/Tools/ssl/make_ssl_data.py
@@ -2,7 +2,7 @@
 
 """
 This script should be called *manually* when we want to upgrade SSLError
-`library` and `reason` mnemnonics to a more recent OpenSSL version.
+`library` and `reason` mnemonics to a more recent OpenSSL version.
 
 It takes two arguments:
 - the path to the OpenSSL source tree (e.g. git checkout)