diff --git a/Doc/library/datetime.rst b/Doc/library/datetime.rst
index 272abee..ecaad06 100644
--- a/Doc/library/datetime.rst
+++ b/Doc/library/datetime.rst
@@ -1842,7 +1842,7 @@
 :attr:`~datetime.fold` attribute are considered equal in comparisons.
 
 Applications that can't bear wall-time ambiguities should explicitly check the
-value of the :attr:`~datetime.fold` atribute or avoid using hybrid
+value of the :attr:`~datetime.fold` attribute or avoid using hybrid
 :class:`tzinfo` subclasses; there are no ambiguities when using :class:`timezone`,
 or any other fixed-offset :class:`tzinfo` subclass (such as a class representing
 only EST (fixed offset -5 hours), or only EDT (fixed offset -4 hours)).
diff --git a/Doc/library/email.contentmanager.rst b/Doc/library/email.contentmanager.rst
index c25d073..a9c078b 100644
--- a/Doc/library/email.contentmanager.rst
+++ b/Doc/library/email.contentmanager.rst
@@ -433,5 +433,5 @@
 
        If *headers* is specified and is a list of strings of the form
        ``headername: headervalue`` or a list of ``header`` objects
-       (distinguised from strings by having a ``name`` attribute), add the
+       (distinguished from strings by having a ``name`` attribute), add the
        headers to *msg*.
diff --git a/Doc/library/idle.rst b/Doc/library/idle.rst
index 0b8171d..ffe8426 100644
--- a/Doc/library/idle.rst
+++ b/Doc/library/idle.rst
@@ -531,7 +531,7 @@
    -c command  run command in the shell window
    -d          enable debugger and open shell window
    -e          open editor window
-   -h          print help message with legal combinatios and exit
+   -h          print help message with legal combinations and exit
    -i          open shell window
    -r file     run file in shell window
    -s          run $IDLESTARTUP or $PYTHONSTARTUP first, in shell window
diff --git a/Doc/library/smtpd.rst b/Doc/library/smtpd.rst
index ad6bd3c..1c255dd 100644
--- a/Doc/library/smtpd.rst
+++ b/Doc/library/smtpd.rst
@@ -44,7 +44,7 @@
    dictionary is a suitable value).  If not specified the :mod:`asyncore`
    global socket map is used.
 
-   *enable_SMTPUTF8* determins whether the ``SMTPUTF8`` extension (as defined
+   *enable_SMTPUTF8* determines whether the ``SMTPUTF8`` extension (as defined
    in :RFC:`6531`) should be enabled.  The default is ``False``.
    When ``True``, ``SMTPUTF8`` is accepted as a parameter to the ``MAIL``
    command and when present is passed to :meth:`process_message` in the
@@ -162,7 +162,7 @@
    accepted in a ``DATA`` command.  A value of ``None`` or ``0`` means no
    limit.
 
-   *enable_SMTPUTF8* determins whether the ``SMTPUTF8`` extension (as defined
+   *enable_SMTPUTF8* determines whether the ``SMTPUTF8`` extension (as defined
    in :RFC:`6531`) should be enabled.  The default is ``False``.
    *decode_data* and *enable_SMTPUTF8* cannot be set to ``True`` at the same
    time.
diff --git a/Doc/whatsnew/3.3.rst b/Doc/whatsnew/3.3.rst
index 44c71e0..48b8a3b 100644
--- a/Doc/whatsnew/3.3.rst
+++ b/Doc/whatsnew/3.3.rst
@@ -1954,7 +1954,7 @@
   :attr:`~ssl.OP_NO_COMPRESSION` can be used to disable compression.
   (Contributed by Antoine Pitrou in :issue:`13634`.)
 
-* Support has been added for the Next Procotol Negotiation extension using
+* Support has been added for the Next Protocol Negotiation extension using
   the :meth:`ssl.SSLContext.set_npn_protocols` method.
   (Contributed by Colin Marc in :issue:`14204`.)
 
diff --git a/Include/abstract.h b/Include/abstract.h
index f838b50..e728b12 100644
--- a/Include/abstract.h
+++ b/Include/abstract.h
@@ -487,7 +487,7 @@
     /* old buffer API
        FIXME:  usage of these should all be replaced in Python itself
        but for backwards compatibility we will implement them.
-       Their usage without a corresponding "unlock" mechansim
+       Their usage without a corresponding "unlock" mechanism
        may create issues (but they would already be there). */
 
      PyAPI_FUNC(int) PyObject_AsCharBuffer(PyObject *obj,
diff --git a/Include/bytesobject.h b/Include/bytesobject.h
index 4578069..11d8218 100644
--- a/Include/bytesobject.h
+++ b/Include/bytesobject.h
@@ -131,7 +131,7 @@
 #define F_ZERO	(1<<4)
 
 #ifndef Py_LIMITED_API
-/* The _PyBytesWriter structure is big: it contains an embeded "stack buffer".
+/* The _PyBytesWriter structure is big: it contains an embedded "stack buffer".
    A _PyBytesWriter variable must be declared at the end of variables in a
    function to optimize the memory allocation on the stack. */
 typedef struct {
diff --git a/Include/pymath.h b/Include/pymath.h
index 894362e..7216a09 100644
--- a/Include/pymath.h
+++ b/Include/pymath.h
@@ -37,7 +37,7 @@
 #endif /* __STDC__ */
 #endif /* _MSC_VER */
 
-/* High precision defintion of pi and e (Euler)
+/* High precision definition of pi and e (Euler)
  * The values are taken from libc6's math.h.
  */
 #ifndef Py_MATH_PIl
diff --git a/Lib/asyncio/streams.py b/Lib/asyncio/streams.py
index c88a87c..b4adc7d 100644
--- a/Lib/asyncio/streams.py
+++ b/Lib/asyncio/streams.py
@@ -590,7 +590,7 @@
         bytes. If the EOF was received and the internal buffer is empty, return
         an empty bytes object.
 
-        If n is zero, return empty bytes object immediatelly.
+        If n is zero, return empty bytes object immediately.
 
         If n is positive, this function try to read `n` bytes, and may return
         less or equal bytes than requested, but at least one byte. If EOF was
diff --git a/Lib/concurrent/futures/process.py b/Lib/concurrent/futures/process.py
index 590edba..8f1d714 100644
--- a/Lib/concurrent/futures/process.py
+++ b/Lib/concurrent/futures/process.py
@@ -63,7 +63,7 @@
 # interpreter to exit when there are still idle processes in a
 # ProcessPoolExecutor's process pool (i.e. shutdown() was not called). However,
 # allowing workers to die with the interpreter has two undesirable properties:
-#   - The workers would still be running during interpretor shutdown,
+#   - The workers would still be running during interpreter shutdown,
 #     meaning that they would fail in unpredictable ways.
 #   - The workers could be killed while evaluating a work item, which could
 #     be bad if the callable being evaluated has external side-effects e.g.
diff --git a/Lib/concurrent/futures/thread.py b/Lib/concurrent/futures/thread.py
index 6266f38..03d276b 100644
--- a/Lib/concurrent/futures/thread.py
+++ b/Lib/concurrent/futures/thread.py
@@ -16,7 +16,7 @@
 # to exit when there are still idle threads in a ThreadPoolExecutor's thread
 # pool (i.e. shutdown() was not called). However, allowing workers to die with
 # the interpreter has two undesirable properties:
-#   - The workers would still be running during interpretor shutdown,
+#   - The workers would still be running during interpreter shutdown,
 #     meaning that they would fail in unpredictable ways.
 #   - The workers could be killed while evaluating a work item, which could
 #     be bad if the callable being evaluated has external side-effects e.g.
diff --git a/Lib/distutils/tests/test_msvc9compiler.py b/Lib/distutils/tests/test_msvc9compiler.py
index 5e18c61..77a07ef 100644
--- a/Lib/distutils/tests/test_msvc9compiler.py
+++ b/Lib/distutils/tests/test_msvc9compiler.py
@@ -125,7 +125,7 @@
         self.assertRaises(KeyError, Reg.get_value, 'xxx', 'xxx')
 
         # looking for values that should exist on all
-        # windows registeries versions.
+        # windows registry versions.
         path = r'Control Panel\Desktop'
         v = Reg.get_value(path, 'dragfullwindows')
         self.assertIn(v, ('0', '1', '2'))
diff --git a/Lib/email/contentmanager.py b/Lib/email/contentmanager.py
index d363652..099c314 100644
--- a/Lib/email/contentmanager.py
+++ b/Lib/email/contentmanager.py
@@ -141,7 +141,7 @@
 def _encode_text(string, charset, cte, policy):
     lines = string.encode(charset).splitlines()
     linesep = policy.linesep.encode('ascii')
-    def embeded_body(lines): return linesep.join(lines) + linesep
+    def embedded_body(lines): return linesep.join(lines) + linesep
     def normal_body(lines): return b'\n'.join(lines) + b'\n'
     if cte==None:
         # Use heuristics to decide on the "best" encoding.
@@ -152,7 +152,7 @@
         if (policy.cte_type == '8bit' and
                 max(len(x) for x in lines) <= policy.max_line_length):
             return '8bit', normal_body(lines).decode('ascii', 'surrogateescape')
-        sniff = embeded_body(lines[:10])
+        sniff = embedded_body(lines[:10])
         sniff_qp = quoprimime.body_encode(sniff.decode('latin-1'),
                                           policy.max_line_length)
         sniff_base64 = binascii.b2a_base64(sniff)
@@ -171,7 +171,7 @@
         data = quoprimime.body_encode(normal_body(lines).decode('latin-1'),
                                       policy.max_line_length)
     elif cte == 'base64':
-        data = _encode_base64(embeded_body(lines), policy.max_line_length)
+        data = _encode_base64(embedded_body(lines), policy.max_line_length)
     else:
         raise ValueError("Unknown content transfer encoding {}".format(cte))
     return cte, data
diff --git a/Lib/email/generator.py b/Lib/email/generator.py
index 11ff16d..7c3cdc9 100644
--- a/Lib/email/generator.py
+++ b/Lib/email/generator.py
@@ -97,7 +97,7 @@
         self._NL = policy.linesep
         self._encoded_NL = self._encode(self._NL)
         self._EMPTY = ''
-        self._encoded_EMTPY = self._encode('')
+        self._encoded_EMPTY = self._encode('')
         # Because we use clone (below) when we recursively process message
         # subparts, and because clone uses the computed policy (not None),
         # submessages will automatically get set to the computed policy when
diff --git a/Lib/email/header.py b/Lib/email/header.py
index 6820ea1..c7b2dd9 100644
--- a/Lib/email/header.py
+++ b/Lib/email/header.py
@@ -49,7 +49,7 @@
 
 # Find a header embedded in a putative header value.  Used to check for
 # header injection attack.
-_embeded_header = re.compile(r'\n[^ \t]+:')
+_embedded_header = re.compile(r'\n[^ \t]+:')
 
 
 
@@ -385,7 +385,7 @@
         if self._chunks:
             formatter.add_transition()
         value = formatter._str(linesep)
-        if _embeded_header.search(value):
+        if _embedded_header.search(value):
             raise HeaderParseError("header value appears to contain "
                 "an embedded header: {!r}".format(value))
         return value
diff --git a/Lib/email/message.py b/Lib/email/message.py
index aefaf57..65bb237 100644
--- a/Lib/email/message.py
+++ b/Lib/email/message.py
@@ -1043,7 +1043,7 @@
             yield from parts
             return
         # Otherwise we more or less invert the remaining logic in get_body.
-        # This only really works in edge cases (ex: non-text relateds or
+        # This only really works in edge cases (ex: non-text related or
         # alternatives) if the sending agent sets content-disposition.
         seen = []   # Only skip the first example of each candidate type.
         for part in parts:
diff --git a/Lib/http/client.py b/Lib/http/client.py
index 9d5cf45..9107412 100644
--- a/Lib/http/client.py
+++ b/Lib/http/client.py
@@ -136,7 +136,7 @@
 #
 # VCHAR defined in http://tools.ietf.org/html/rfc5234#appendix-B.1
 
-# the patterns for both name and value are more leniant than RFC
+# the patterns for both name and value are more lenient than RFC
 # definitions to allow for backwards compatibility
 _is_legal_header_name = re.compile(rb'[^:\s][^:\r\n]*').fullmatch
 _is_illegal_header_value = re.compile(rb'\n(?![ \t])|\r(?![ \t\n])').search
diff --git a/Lib/idlelib/README.txt b/Lib/idlelib/README.txt
index d333b47..f7aad68 100644
--- a/Lib/idlelib/README.txt
+++ b/Lib/idlelib/README.txt
@@ -65,7 +65,7 @@
 percolator.py     # Manage delegator stack (nim).
 pyparse.py        # Give information on code indentation
 pyshell.py        # Start IDLE, manage shell, complete editor window
-query.py          # Query user for informtion
+query.py          # Query user for information
 redirector.py     # Intercept widget subcommands (for percolator) (nim).
 replace.py        # Search and replace pattern in text.
 rpc.py            # Commuicate between idle and user processes (nim).
diff --git a/Lib/idlelib/help.html b/Lib/idlelib/help.html
index 1357289..b2d8fdc 100644
--- a/Lib/idlelib/help.html
+++ b/Lib/idlelib/help.html
@@ -497,7 +497,7 @@
 -c command  run command in the shell window
 -d          enable debugger and open shell window
 -e          open editor window
--h          print help message with legal combinatios and exit
+-h          print help message with legal combinations and exit
 -i          open shell window
 -r file     run file in shell window
 -s          run $IDLESTARTUP or $PYTHONSTARTUP first, in shell window
diff --git a/Lib/idlelib/idle_test/test_paragraph.py b/Lib/idlelib/idle_test/test_paragraph.py
index 4741eb8..ba350c9 100644
--- a/Lib/idlelib/idle_test/test_paragraph.py
+++ b/Lib/idlelib/idle_test/test_paragraph.py
@@ -159,7 +159,7 @@
 class ReformatFunctionTest(unittest.TestCase):
     """Test the reformat_paragraph function without the editor window."""
 
-    def test_reformat_paragrah(self):
+    def test_reformat_paragraph(self):
         Equal = self.assertEqual
         reform = fp.reformat_paragraph
         hw = "O hello world"
diff --git a/Lib/shutil.py b/Lib/shutil.py
index ac04cc5..9d193b5 100644
--- a/Lib/shutil.py
+++ b/Lib/shutil.py
@@ -64,7 +64,7 @@
 
 class RegistryError(Exception):
     """Raised when a registry operation with the archiving
-    and unpacking registeries fails"""
+    and unpacking registries fails"""
 
 
 def copyfileobj(fsrc, fdst, length=16*1024):
diff --git a/Lib/statistics.py b/Lib/statistics.py
index 40c72db..7d53e0c 100644
--- a/Lib/statistics.py
+++ b/Lib/statistics.py
@@ -454,7 +454,7 @@
         """Return the nth root of a positive huge number."""
         assert x > 0
         # I state without proof that ⁿ√x ≈ ⁿ√2·ⁿ√(x//2)
-        # and that for sufficiently big x the error is acceptible.
+        # and that for sufficiently big x the error is acceptable.
         # We now halve x until it is small enough to get the root.
         m = 0
         while True:
diff --git a/Lib/test/_test_multiprocessing.py b/Lib/test/_test_multiprocessing.py
index 16407db..cfd801e 100644
--- a/Lib/test/_test_multiprocessing.py
+++ b/Lib/test/_test_multiprocessing.py
@@ -26,7 +26,7 @@
 _multiprocessing = test.support.import_module('_multiprocessing')
 # Skip tests if sem_open implementation is broken.
 test.support.import_module('multiprocessing.synchronize')
-# import threading after _multiprocessing to raise a more revelant error
+# import threading after _multiprocessing to raise a more relevant error
 # message: "No module named _multiprocessing". _multiprocessing is not compiled
 # without thread support.
 import threading
diff --git a/Lib/test/datetimetester.py b/Lib/test/datetimetester.py
index e21d487..86c9373 100644
--- a/Lib/test/datetimetester.py
+++ b/Lib/test/datetimetester.py
@@ -3958,7 +3958,7 @@
         self.assertRaises(TypeError, lambda: as_date >= as_datetime)
         self.assertRaises(TypeError, lambda: as_datetime >= as_date)
 
-        # Neverthelss, comparison should work with the base-class (date)
+        # Nevertheless, comparison should work with the base-class (date)
         # projection if use of a date method is forced.
         self.assertEqual(as_date.__eq__(as_datetime), True)
         different_day = (as_date.day + 1) % 20 + 1
diff --git a/Lib/test/test_asyncio/test_locks.py b/Lib/test/test_asyncio/test_locks.py
index d3bdc51..e557212 100644
--- a/Lib/test/test_asyncio/test_locks.py
+++ b/Lib/test/test_asyncio/test_locks.py
@@ -130,8 +130,8 @@
     def test_cancel_race(self):
         # Several tasks:
         # - A acquires the lock
-        # - B is blocked in aqcuire()
-        # - C is blocked in aqcuire()
+        # - B is blocked in acquire()
+        # - C is blocked in acquire()
         #
         # Now, concurrently:
         # - B is cancelled
diff --git a/Lib/test/test_concurrent_futures.py b/Lib/test/test_concurrent_futures.py
index 46b069c..23e95b2 100644
--- a/Lib/test/test_concurrent_futures.py
+++ b/Lib/test/test_concurrent_futures.py
@@ -4,7 +4,7 @@
 test.support.import_module('_multiprocessing')
 # Skip tests if sem_open implementation is broken.
 test.support.import_module('multiprocessing.synchronize')
-# import threading after _multiprocessing to raise a more revelant error
+# import threading after _multiprocessing to raise a more relevant error
 # message: "No module named _multiprocessing". _multiprocessing is not compiled
 # without thread support.
 test.support.import_module('threading')
diff --git a/Lib/test/test_descr.py b/Lib/test/test_descr.py
index 0a5ecd5..0950b8e 100644
--- a/Lib/test/test_descr.py
+++ b/Lib/test/test_descr.py
@@ -876,7 +876,7 @@
         self.assertEqual(Frag().__int__(), 42)
         self.assertEqual(int(Frag()), 42)
 
-    def test_diamond_inheritence(self):
+    def test_diamond_inheritance(self):
         # Testing multiple inheritance special cases...
         class A(object):
             def spam(self): return "A"
diff --git a/Lib/test/test_difflib.py b/Lib/test/test_difflib.py
index ab9debf..156b523 100644
--- a/Lib/test/test_difflib.py
+++ b/Lib/test/test_difflib.py
@@ -122,17 +122,17 @@
 """
 
 patch914575_from2 = """
-\t\tLine 1: preceeded by from:[tt] to:[ssss]
-  \t\tLine 2: preceeded by from:[sstt] to:[sssst]
-  \t \tLine 3: preceeded by from:[sstst] to:[ssssss]
+\t\tLine 1: preceded by from:[tt] to:[ssss]
+  \t\tLine 2: preceded by from:[sstt] to:[sssst]
+  \t \tLine 3: preceded by from:[sstst] to:[ssssss]
 Line 4:  \thas from:[sst] to:[sss] after :
 Line 5: has from:[t] to:[ss] at end\t
 """
 
 patch914575_to2 = """
-    Line 1: preceeded by from:[tt] to:[ssss]
-    \tLine 2: preceeded by from:[sstt] to:[sssst]
-      Line 3: preceeded by from:[sstst] to:[ssssss]
+    Line 1: preceded by from:[tt] to:[ssss]
+    \tLine 2: preceded by from:[sstt] to:[sssst]
+      Line 3: preceded by from:[sstst] to:[ssssss]
 Line 4:   has from:[sst] to:[sss] after :
 Line 5: has from:[t] to:[ss] at end
 """
diff --git a/Lib/test/test_difflib_expect.html b/Lib/test/test_difflib_expect.html
index ea7a24e..3e6a7b7 100644
--- a/Lib/test/test_difflib_expect.html
+++ b/Lib/test/test_difflib_expect.html
@@ -387,9 +387,9 @@
         
         <tbody>
             <tr><td class="diff_next" id="difflib_chg_to9__0"><a href="#difflib_chg_to9__0">f</a></td><td class="diff_header" id="from9_1">1</td><td nowrap="nowrap"></td><td class="diff_next"><a href="#difflib_chg_to9__0">f</a></td><td class="diff_header" id="to9_1">1</td><td nowrap="nowrap"></td></tr>
-            <tr><td class="diff_next"><a href="#difflib_chg_to9__top">t</a></td><td class="diff_header" id="from9_2">2</td><td nowrap="nowrap"><span class="diff_chg">&nbsp;&nbsp;&nbsp;&nbsp;</span>Line&nbsp;1:&nbsp;preceeded&nbsp;by&nbsp;from:[tt]&nbsp;to:[ssss]</td><td class="diff_next"><a href="#difflib_chg_to9__top">t</a></td><td class="diff_header" id="to9_2">2</td><td nowrap="nowrap"><span class="diff_chg">&nbsp;&nbsp;&nbsp;&nbsp;</span>Line&nbsp;1:&nbsp;preceeded&nbsp;by&nbsp;from:[tt]&nbsp;to:[ssss]</td></tr>
-            <tr><td class="diff_next"></td><td class="diff_header" id="from9_3">3</td><td nowrap="nowrap">&nbsp;&nbsp;<span class="diff_chg">&nbsp;&nbsp;</span>&nbsp;&nbsp;Line&nbsp;2:&nbsp;preceeded&nbsp;by&nbsp;from:[sstt]&nbsp;to:[sssst]</td><td class="diff_next"></td><td class="diff_header" id="to9_3">3</td><td nowrap="nowrap">&nbsp;&nbsp;<span class="diff_chg">&nbsp;&nbsp;</span>&nbsp;&nbsp;Line&nbsp;2:&nbsp;preceeded&nbsp;by&nbsp;from:[sstt]&nbsp;to:[sssst]</td></tr>
-            <tr><td class="diff_next"></td><td class="diff_header" id="from9_4">4</td><td nowrap="nowrap">&nbsp;&nbsp;<span class="diff_chg">&nbsp;&nbsp;&nbsp;&nbsp;</span>Line&nbsp;3:&nbsp;preceeded&nbsp;by&nbsp;from:[sstst]&nbsp;to:[ssssss]</td><td class="diff_next"></td><td class="diff_header" id="to9_4">4</td><td nowrap="nowrap">&nbsp;&nbsp;<span class="diff_chg">&nbsp;&nbsp;&nbsp;&nbsp;</span>Line&nbsp;3:&nbsp;preceeded&nbsp;by&nbsp;from:[sstst]&nbsp;to:[ssssss]</td></tr>
+            <tr><td class="diff_next"><a href="#difflib_chg_to9__top">t</a></td><td class="diff_header" id="from9_2">2</td><td nowrap="nowrap"><span class="diff_chg">&nbsp;&nbsp;&nbsp;&nbsp;</span>Line&nbsp;1:&nbsp;preceded&nbsp;by&nbsp;from:[tt]&nbsp;to:[ssss]</td><td class="diff_next"><a href="#difflib_chg_to9__top">t</a></td><td class="diff_header" id="to9_2">2</td><td nowrap="nowrap"><span class="diff_chg">&nbsp;&nbsp;&nbsp;&nbsp;</span>Line&nbsp;1:&nbsp;preceded&nbsp;by&nbsp;from:[tt]&nbsp;to:[ssss]</td></tr>
+            <tr><td class="diff_next"></td><td class="diff_header" id="from9_3">3</td><td nowrap="nowrap">&nbsp;&nbsp;<span class="diff_chg">&nbsp;&nbsp;</span>&nbsp;&nbsp;Line&nbsp;2:&nbsp;preceded&nbsp;by&nbsp;from:[sstt]&nbsp;to:[sssst]</td><td class="diff_next"></td><td class="diff_header" id="to9_3">3</td><td nowrap="nowrap">&nbsp;&nbsp;<span class="diff_chg">&nbsp;&nbsp;</span>&nbsp;&nbsp;Line&nbsp;2:&nbsp;preceded&nbsp;by&nbsp;from:[sstt]&nbsp;to:[sssst]</td></tr>
+            <tr><td class="diff_next"></td><td class="diff_header" id="from9_4">4</td><td nowrap="nowrap">&nbsp;&nbsp;<span class="diff_chg">&nbsp;&nbsp;&nbsp;&nbsp;</span>Line&nbsp;3:&nbsp;preceded&nbsp;by&nbsp;from:[sstst]&nbsp;to:[ssssss]</td><td class="diff_next"></td><td class="diff_header" id="to9_4">4</td><td nowrap="nowrap">&nbsp;&nbsp;<span class="diff_chg">&nbsp;&nbsp;&nbsp;&nbsp;</span>Line&nbsp;3:&nbsp;preceded&nbsp;by&nbsp;from:[sstst]&nbsp;to:[ssssss]</td></tr>
             <tr><td class="diff_next"></td><td class="diff_header" id="from9_5">5</td><td nowrap="nowrap">Line&nbsp;4:&nbsp;&nbsp;<span class="diff_chg">&nbsp;</span>has&nbsp;from:[sst]&nbsp;to:[sss]&nbsp;after&nbsp;:</td><td class="diff_next"></td><td class="diff_header" id="to9_5">5</td><td nowrap="nowrap">Line&nbsp;4:&nbsp;&nbsp;<span class="diff_chg">&nbsp;</span>has&nbsp;from:[sst]&nbsp;to:[sss]&nbsp;after&nbsp;:</td></tr>
             <tr><td class="diff_next"></td><td class="diff_header" id="from9_6">6</td><td nowrap="nowrap">Line&nbsp;5:&nbsp;has&nbsp;from:[t]&nbsp;to:[ss]&nbsp;at&nbsp;end<span class="diff_sub">&nbsp;</span></td><td class="diff_next"></td><td class="diff_header" id="to9_6">6</td><td nowrap="nowrap">Line&nbsp;5:&nbsp;has&nbsp;from:[t]&nbsp;to:[ss]&nbsp;at&nbsp;end</td></tr>
         </tbody>
@@ -403,9 +403,9 @@
         
         <tbody>
             <tr><td class="diff_next" id="difflib_chg_to10__0"><a href="#difflib_chg_to10__0">f</a></td><td class="diff_header" id="from10_1">1</td><td nowrap="nowrap"></td><td class="diff_next"><a href="#difflib_chg_to10__0">f</a></td><td class="diff_header" id="to10_1">1</td><td nowrap="nowrap"></td></tr>
-            <tr><td class="diff_next"><a href="#difflib_chg_to10__top">t</a></td><td class="diff_header" id="from10_2">2</td><td nowrap="nowrap"><span class="diff_chg">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>Line&nbsp;1:&nbsp;preceeded&nbsp;by&nbsp;from:[tt]&nbsp;to:[ssss]</td><td class="diff_next"><a href="#difflib_chg_to10__top">t</a></td><td class="diff_header" id="to10_2">2</td><td nowrap="nowrap"><span class="diff_chg">&nbsp;&nbsp;&nbsp;&nbsp;</span>Line&nbsp;1:&nbsp;preceeded&nbsp;by&nbsp;from:[tt]&nbsp;to:[ssss]</td></tr>
-            <tr><td class="diff_next"></td><td class="diff_header" id="from10_3">3</td><td nowrap="nowrap">&nbsp;&nbsp;<span class="diff_chg">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>&nbsp;&nbsp;&nbsp;&nbsp;Line&nbsp;2:&nbsp;preceeded&nbsp;by&nbsp;from:[sstt]&nbsp;to:[sssst]</td><td class="diff_next"></td><td class="diff_header" id="to10_3">3</td><td nowrap="nowrap">&nbsp;&nbsp;<span class="diff_chg">&nbsp;&nbsp;</span>&nbsp;&nbsp;&nbsp;&nbsp;Line&nbsp;2:&nbsp;preceeded&nbsp;by&nbsp;from:[sstt]&nbsp;to:[sssst]</td></tr>
-            <tr><td class="diff_next"></td><td class="diff_header" id="from10_4">4</td><td nowrap="nowrap">&nbsp;&nbsp;<span class="diff_chg">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>Line&nbsp;3:&nbsp;preceeded&nbsp;by&nbsp;from:[sstst]&nbsp;to:[ssssss]</td><td class="diff_next"></td><td class="diff_header" id="to10_4">4</td><td nowrap="nowrap">&nbsp;&nbsp;<span class="diff_chg">&nbsp;&nbsp;&nbsp;&nbsp;</span>Line&nbsp;3:&nbsp;preceeded&nbsp;by&nbsp;from:[sstst]&nbsp;to:[ssssss]</td></tr>
+            <tr><td class="diff_next"><a href="#difflib_chg_to10__top">t</a></td><td class="diff_header" id="from10_2">2</td><td nowrap="nowrap"><span class="diff_chg">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>Line&nbsp;1:&nbsp;preceded&nbsp;by&nbsp;from:[tt]&nbsp;to:[ssss]</td><td class="diff_next"><a href="#difflib_chg_to10__top">t</a></td><td class="diff_header" id="to10_2">2</td><td nowrap="nowrap"><span class="diff_chg">&nbsp;&nbsp;&nbsp;&nbsp;</span>Line&nbsp;1:&nbsp;preceded&nbsp;by&nbsp;from:[tt]&nbsp;to:[ssss]</td></tr>
+            <tr><td class="diff_next"></td><td class="diff_header" id="from10_3">3</td><td nowrap="nowrap">&nbsp;&nbsp;<span class="diff_chg">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>&nbsp;&nbsp;&nbsp;&nbsp;Line&nbsp;2:&nbsp;preceded&nbsp;by&nbsp;from:[sstt]&nbsp;to:[sssst]</td><td class="diff_next"></td><td class="diff_header" id="to10_3">3</td><td nowrap="nowrap">&nbsp;&nbsp;<span class="diff_chg">&nbsp;&nbsp;</span>&nbsp;&nbsp;&nbsp;&nbsp;Line&nbsp;2:&nbsp;preceded&nbsp;by&nbsp;from:[sstt]&nbsp;to:[sssst]</td></tr>
+            <tr><td class="diff_next"></td><td class="diff_header" id="from10_4">4</td><td nowrap="nowrap">&nbsp;&nbsp;<span class="diff_chg">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>Line&nbsp;3:&nbsp;preceded&nbsp;by&nbsp;from:[sstst]&nbsp;to:[ssssss]</td><td class="diff_next"></td><td class="diff_header" id="to10_4">4</td><td nowrap="nowrap">&nbsp;&nbsp;<span class="diff_chg">&nbsp;&nbsp;&nbsp;&nbsp;</span>Line&nbsp;3:&nbsp;preceded&nbsp;by&nbsp;from:[sstst]&nbsp;to:[ssssss]</td></tr>
             <tr><td class="diff_next"></td><td class="diff_header" id="from10_5">5</td><td nowrap="nowrap">Line&nbsp;4:&nbsp;&nbsp;<span class="diff_chg">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>has&nbsp;from:[sst]&nbsp;to:[sss]&nbsp;after&nbsp;:</td><td class="diff_next"></td><td class="diff_header" id="to10_5">5</td><td nowrap="nowrap">Line&nbsp;4:&nbsp;&nbsp;<span class="diff_chg">&nbsp;</span>has&nbsp;from:[sst]&nbsp;to:[sss]&nbsp;after&nbsp;:</td></tr>
             <tr><td class="diff_next"></td><td class="diff_header" id="from10_6">6</td><td nowrap="nowrap">Line&nbsp;5:&nbsp;has&nbsp;from:[t]&nbsp;to:[ss]&nbsp;at&nbsp;end<span class="diff_sub">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></td><td class="diff_next"></td><td class="diff_header" id="to10_6">6</td><td nowrap="nowrap">Line&nbsp;5:&nbsp;has&nbsp;from:[t]&nbsp;to:[ss]&nbsp;at&nbsp;end</td></tr>
         </tbody>
diff --git a/Lib/test/test_email/test_email.py b/Lib/test/test_email/test_email.py
index 8a7e06e..8aaca01 100644
--- a/Lib/test/test_email/test_email.py
+++ b/Lib/test/test_email/test_email.py
@@ -723,12 +723,12 @@
 
     # Issue 5871: reject an attempt to embed a header inside a header value
     # (header injection attack).
-    def test_embeded_header_via_Header_rejected(self):
+    def test_embedded_header_via_Header_rejected(self):
         msg = Message()
         msg['Dummy'] = Header('dummy\nX-Injected-Header: test')
         self.assertRaises(errors.HeaderParseError, msg.as_string)
 
-    def test_embeded_header_via_string_rejected(self):
+    def test_embedded_header_via_string_rejected(self):
         msg = Message()
         msg['Dummy'] = 'dummy\nX-Injected-Header: test'
         self.assertRaises(errors.HeaderParseError, msg.as_string)
diff --git a/Lib/test/test_email/test_generator.py b/Lib/test/test_email/test_generator.py
index b1cbce2..7c8877f 100644
--- a/Lib/test/test_email/test_generator.py
+++ b/Lib/test/test_email/test_generator.py
@@ -143,7 +143,7 @@
     def test_set_mangle_from_via_policy(self):
         source = textwrap.dedent("""\
             Subject: test that
-             from is mangeld in the body!
+             from is mangled in the body!
 
             From time to time I write a rhyme.
             """)
diff --git a/Lib/test/test_importlib/test_util.py b/Lib/test/test_importlib/test_util.py
index 69466b2..41ca333 100644
--- a/Lib/test/test_importlib/test_util.py
+++ b/Lib/test/test_importlib/test_util.py
@@ -372,7 +372,7 @@
         # bacon
         self.assertEqual('bacon', self.util.resolve_name('bacon', None))
 
-    def test_aboslute_within_package(self):
+    def test_absolute_within_package(self):
         # bacon in spam
         self.assertEqual('bacon', self.util.resolve_name('bacon', 'spam'))
 
diff --git a/Lib/test/test_ipaddress.py b/Lib/test/test_ipaddress.py
index 2e31f42..5f08f0c 100644
--- a/Lib/test/test_ipaddress.py
+++ b/Lib/test/test_ipaddress.py
@@ -1263,7 +1263,7 @@
         ip4 = ipaddress.IPv4Address('1.1.1.3')
         ip5 = ipaddress.IPv4Address('1.1.1.4')
         ip6 = ipaddress.IPv4Address('1.1.1.0')
-        # check that addreses are subsumed properly.
+        # check that addresses are subsumed properly.
         collapsed = ipaddress.collapse_addresses(
             [ip1, ip2, ip3, ip4, ip5, ip6])
         self.assertEqual(list(collapsed),
@@ -1277,7 +1277,7 @@
         ip4 = ipaddress.IPv4Address('1.1.1.3')
         #ip5 = ipaddress.IPv4Interface('1.1.1.4/30')
         #ip6 = ipaddress.IPv4Interface('1.1.1.4/30')
-        # check that addreses are subsumed properly.
+        # check that addresses are subsumed properly.
         collapsed = ipaddress.collapse_addresses([ip1, ip2, ip3, ip4])
         self.assertEqual(list(collapsed),
                          [ipaddress.IPv4Network('1.1.1.0/30')])
@@ -1291,7 +1291,7 @@
         # stored in no particular order b/c we want CollapseAddr to call
         # [].sort
         ip6 = ipaddress.IPv4Network('1.1.0.0/22')
-        # check that addreses are subsumed properly.
+        # check that addresses are subsumed properly.
         collapsed = ipaddress.collapse_addresses([ip1, ip2, ip3, ip4, ip5,
                                                      ip6])
         self.assertEqual(list(collapsed),
diff --git a/Lib/test/test_pep247.py b/Lib/test/test_pep247.py
index ab5f4189..c17ceed 100644
--- a/Lib/test/test_pep247.py
+++ b/Lib/test/test_pep247.py
@@ -1,5 +1,5 @@
 """
-Test suite to check compilance with PEP 247, the standard API
+Test suite to check compliance with PEP 247, the standard API
 for hashing algorithms
 """
 
diff --git a/Lib/test/test_shutil.py b/Lib/test/test_shutil.py
index 1d5e01a..90a31d7 100644
--- a/Lib/test/test_shutil.py
+++ b/Lib/test/test_shutil.py
@@ -1306,10 +1306,10 @@
             shutil.chown(filename)
 
         with self.assertRaises(LookupError):
-            shutil.chown(filename, user='non-exising username')
+            shutil.chown(filename, user='non-existing username')
 
         with self.assertRaises(LookupError):
-            shutil.chown(filename, group='non-exising groupname')
+            shutil.chown(filename, group='non-existing groupname')
 
         with self.assertRaises(TypeError):
             shutil.chown(filename, b'spam')
diff --git a/Lib/test/test_subprocess.py b/Lib/test/test_subprocess.py
index 154e330..2bfb69c 100644
--- a/Lib/test/test_subprocess.py
+++ b/Lib/test/test_subprocess.py
@@ -682,7 +682,7 @@
         self.assertEqual(stdout, "banana")
         self.assertStderrEqual(stderr.encode(), b"pineapple\npear\n")
 
-    def test_communicate_timeout_large_ouput(self):
+    def test_communicate_timeout_large_output(self):
         # Test an expiring timeout while the child is outputting lots of data.
         p = subprocess.Popen([sys.executable, "-c",
                               'import sys,os,time;'
diff --git a/Lib/test/test_urllib.py b/Lib/test/test_urllib.py
index c26c52a..247598a 100644
--- a/Lib/test/test_urllib.py
+++ b/Lib/test/test_urllib.py
@@ -1,4 +1,4 @@
-"""Regresssion tests for what was in Python 2's "urllib" module"""
+"""Regression tests for what was in Python 2's "urllib" module"""
 
 import urllib.parse
 import urllib.request
diff --git a/Lib/test/test_winreg.py b/Lib/test/test_winreg.py
index ef40e8b..d642b13 100644
--- a/Lib/test/test_winreg.py
+++ b/Lib/test/test_winreg.py
@@ -169,7 +169,7 @@
         DeleteKey(key, subkeystr)
 
         try:
-            # Shouldnt be able to delete it twice!
+            # Shouldn't be able to delete it twice!
             DeleteKey(key, subkeystr)
             self.fail("Deleting the key twice succeeded")
         except OSError:
diff --git a/Lib/tkinter/__init__.py b/Lib/tkinter/__init__.py
index 35643e6..99ad2a7 100644
--- a/Lib/tkinter/__init__.py
+++ b/Lib/tkinter/__init__.py
@@ -245,7 +245,7 @@
         if self.delta == 0:
             del attrs['delta']
         # widget usually is known
-        # serial and time are not very interesing
+        # serial and time are not very interesting
         # keysym_num duplicates keysym
         # x_root and y_root mostly duplicate x and y
         keys = ('send_event',
diff --git a/Lib/unittest/test/test_discovery.py b/Lib/unittest/test/test_discovery.py
index 8f4017f..1996a8e 100644
--- a/Lib/unittest/test/test_discovery.py
+++ b/Lib/unittest/test/test_discovery.py
@@ -349,7 +349,7 @@
         suite = list(loader._find_tests(abspath('/foo'), 'test*.py'))
 
         # We should have loaded tests from both my_package and
-        # my_pacakge.test_module, and also run the load_tests hook in both.
+        # my_package.test_module, and also run the load_tests hook in both.
         # (normally this would be nested TestSuites.)
         self.assertEqual(suite,
                          [['my_package load_tests', [],
diff --git a/Lib/unittest/test/testmock/testcallable.py b/Lib/unittest/test/testmock/testcallable.py
index 5390a4e..af1ce7e 100644
--- a/Lib/unittest/test/testmock/testcallable.py
+++ b/Lib/unittest/test/testmock/testcallable.py
@@ -27,7 +27,7 @@
             self.assertIn(mock.__class__.__name__, repr(mock))
 
 
-    def test_heirarchy(self):
+    def test_hierarchy(self):
         self.assertTrue(issubclass(MagicMock, Mock))
         self.assertTrue(issubclass(NonCallableMagicMock, NonCallableMock))
 
diff --git a/Lib/venv/scripts/posix/activate b/Lib/venv/scripts/posix/activate
index 7bbffd9..c78a4ef 100644
--- a/Lib/venv/scripts/posix/activate
+++ b/Lib/venv/scripts/posix/activate
@@ -34,7 +34,7 @@
     fi
 }
 
-# unset irrelavent variables
+# unset irrelevant variables
 deactivate nondestructive
 
 VIRTUAL_ENV="__VENV_DIR__"
diff --git a/Lib/venv/scripts/posix/activate.csh b/Lib/venv/scripts/posix/activate.csh
index 99d79e0..b0c7028 100644
--- a/Lib/venv/scripts/posix/activate.csh
+++ b/Lib/venv/scripts/posix/activate.csh
@@ -5,7 +5,7 @@
 
 alias deactivate 'test $?_OLD_VIRTUAL_PATH != 0 && setenv PATH "$_OLD_VIRTUAL_PATH" && unset _OLD_VIRTUAL_PATH; rehash; test $?_OLD_VIRTUAL_PROMPT != 0 && set prompt="$_OLD_VIRTUAL_PROMPT" && unset _OLD_VIRTUAL_PROMPT; unsetenv VIRTUAL_ENV; test "\!:*" != "nondestructive" && unalias deactivate'
 
-# Unset irrelavent variables.
+# Unset irrelevant variables.
 deactivate nondestructive
 
 setenv VIRTUAL_ENV "__VENV_DIR__"
diff --git a/Lib/venv/scripts/posix/activate.fish b/Lib/venv/scripts/posix/activate.fish
index 45391aa..ca98466 100644
--- a/Lib/venv/scripts/posix/activate.fish
+++ b/Lib/venv/scripts/posix/activate.fish
@@ -29,7 +29,7 @@
     end
 end
 
-# unset irrelavent variables
+# unset irrelevant variables
 deactivate nondestructive
 
 set -gx VIRTUAL_ENV "__VENV_DIR__"
diff --git a/Mac/PythonLauncher/MyAppDelegate.m b/Mac/PythonLauncher/MyAppDelegate.m
index e75fb06..25779a2 100644
--- a/Mac/PythonLauncher/MyAppDelegate.m
+++ b/Mac/PythonLauncher/MyAppDelegate.m
@@ -34,7 +34,7 @@
 - (BOOL)shouldShowUI
 {
     // if this call comes before applicationDidFinishLaunching: we
-    // should terminate immedeately after starting the script.
+    // should terminate immediately after starting the script.
     if (!initial_action_done)
         should_terminate = YES;
     initial_action_done = YES;
diff --git a/Misc/HISTORY b/Misc/HISTORY
index 98e9041..5995d3a 100644
--- a/Misc/HISTORY
+++ b/Misc/HISTORY
@@ -1131,7 +1131,7 @@
   and http.client. Patch by EungJun Yi.
 
 - Issue #14777: tkinter may return undecoded UTF-8 bytes as a string when
-  accessing the Tk clipboard.  Modify clipboad_get() to first request type
+  accessing the Tk clipboard.  Modify clipboard_get() to first request type
   UTF8_STRING when no specific type is requested in an X11 windowing
   environment, falling back to the current default type STRING if that fails.
   Original patch by Thomas Kluyver.
@@ -5693,7 +5693,7 @@
   for reading).
 
 - hashlib has two new constant attributes: algorithms_guaranteed and
-  algorithms_avaiable that respectively list the names of hash algorithms
+  algorithms_available that respectively list the names of hash algorithms
   guaranteed to exist in all Python implementations and the names of hash
   algorithms available in the current process.
 
@@ -7344,7 +7344,7 @@
 - Issue #2846: Add support for gzip.GzipFile reading zero-padded files.  Patch
   by Brian Curtin.
 
-- Issue #7681: Use floor division in appropiate places in the wave module.
+- Issue #7681: Use floor division in appropriate places in the wave module.
 
 - Issue #5372: Drop the reuse of .o files in Distutils' ccompiler (since
   Extension extra options may change the output without changing the .c
@@ -10921,7 +10921,7 @@
 
 - Support for BeOS and AtheOS was removed (according to PEP 11).
 
-- Support for RiscOS, Irix, Tru64 was removed (alledgedly).
+- Support for RiscOS, Irix, Tru64 was removed (allegedly).
 
 Tools/Demos
 -----------
@@ -12912,7 +12912,7 @@
 - Bug #947906: An object oriented interface has been added to the calendar
   module. It's possible to generate HTML calendar now and the module can be
   called as a script (e.g. via ``python -mcalendar``). Localized month and
-  weekday names can be ouput (even if an exotic encoding is used) using
+  weekday names can be output (even if an exotic encoding is used) using
   special classes that use unicode.
 
 Build
@@ -13295,7 +13295,7 @@
   ``True`` for ``!=``, and raises ``TypeError`` for other comparison
   operators.  Because datetime is a subclass of date, comparing only the
   base class (date) members can still be done, if that's desired, by
-  forcing using of the approprate date method; e.g.,
+  forcing using of the appropriate date method; e.g.,
   ``a_date.__eq__(a_datetime)`` is true if and only if the year, month
   and day members of ``a_date`` and ``a_datetime`` are equal.
 
@@ -23770,7 +23770,7 @@
 
 - copy.py: Make sure the objects returned by __getinitargs__() are
 kept alive (in the memo) to avoid a certain kind of nasty crash.  (Not
-easily reproducable because it requires a later call to
+easily reproducible because it requires a later call to
 __getinitargs__() to return a tuple that happens to be allocated at
 the same address.)
 
@@ -27402,7 +27402,7 @@
 There is now a script to patch Makefile and config.c to add a new
 optional built-in module: Addmodule.sh.  Read the script before using!
 
-Useing Addmodule.sh, all optional modules can now be configured at
+Using Addmodule.sh, all optional modules can now be configured at
 compile time using Configure.py, so there are no modules left that
 require dynamic loading.
 
@@ -27833,9 +27833,9 @@
 
 SUNAUDIODEV: symbolic constant definitions for sunaudiodef (sun only)
 
-SV: symbolic constat definitions for sv (sgi only)
+SV: symbolic constant definitions for sv (sgi only)
 
-CD: symbolic constat definitions for cd (sgi only)
+CD: symbolic constant definitions for cd (sgi only)
 
 
 New demos
diff --git a/Misc/NEWS b/Misc/NEWS
index 5ce3c2c..00b6686 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -425,7 +425,7 @@
 - Issue #27079: Fixed curses.ascii functions isblank(), iscntrl() and ispunct().
 
 - Issue #27294: Numerical state in the repr for Tkinter event objects is now
-  represented as a compination of known flags.
+  represented as a combination of known flags.
 
 - Issue #27177: Match objects in the re module now support index-like objects
   as group indices.  Based on patches by Jeroen Demeyer and Xiang Zhang.
@@ -5662,7 +5662,7 @@
 
 - Issue #22120: For functions using an unsigned integer return converter,
   Argument Clinic now generates a cast to that type for the comparison
-  to -1 in the generated code.  (This supresses a compilation warning.)
+  to -1 in the generated code.  (This suppresses a compilation warning.)
 
 - Issue #18974: Tools/scripts/diff.py now uses argparse instead of optparse.
 
@@ -6762,7 +6762,7 @@
 
 - Issue #19466: Clear the frames of daemon threads earlier during the
   Python shutdown to call objects destructors. So "unclosed file" resource
-  warnings are now corretly emitted for daemon threads.
+  warnings are now correctly emitted for daemon threads.
 
 - Issue #19514: Deduplicate some _Py_IDENTIFIER declarations.
   Patch by Andrei Dorian Duma.
@@ -7692,7 +7692,7 @@
 
 - Issue #18709: Fix CVE-2013-4238. The SSL module now handles NULL bytes
   inside subjectAltName correctly. Formerly the module has used OpenSSL's
-  GENERAL_NAME_print() function to get the string represention of ASN.1
+  GENERAL_NAME_print() function to get the string representation of ASN.1
   strings for ``rfc822Name`` (email), ``dNSName`` (DNS) and
   ``uniformResourceIdentifier`` (URI).
 
@@ -7785,7 +7785,7 @@
 Documentation
 -------------
 
-- Issue #18743: Fix references to non-existant "StringIO" module.
+- Issue #18743: Fix references to non-existent "StringIO" module.
 
 - Issue #18783: Removed existing mentions of Python long type in docstrings,
   error messages and comments.
@@ -8724,7 +8724,7 @@
   specifically addresses a stack misalignment issue on x86 and issues on
   some more recent platforms.
 
-- Issue #8862: Fixed curses cleanup when getkey is interrputed by a signal.
+- Issue #8862: Fixed curses cleanup when getkey is interrupted by a signal.
 
 - Issue #17443: imaplib.IMAP4_stream was using the default unbuffered IO
   in subprocess, but the imap code assumes buffered IO.  In Python2 this
diff --git a/Modules/_ctypes/ctypes.h b/Modules/_ctypes/ctypes.h
index b06ba8a..b4a9b78 100644
--- a/Modules/_ctypes/ctypes.h
+++ b/Modules/_ctypes/ctypes.h
@@ -238,7 +238,7 @@
  StgDictObject function to a generic one.
 
  Currently, PyCFuncPtr types have 'converters' and 'checker' entries in their
- type dict.  They are only used to cache attributes from other entries, whihc
+ type dict.  They are only used to cache attributes from other entries, which
  is wrong.
 
  One use case is the .value attribute that all simple types have.  But some
diff --git a/Modules/_hashopenssl.c b/Modules/_hashopenssl.c
index 44765ac..f45744a 100644
--- a/Modules/_hashopenssl.c
+++ b/Modules/_hashopenssl.c
@@ -724,7 +724,7 @@
 /*
  *  This macro generates constructor function definitions for specific
  *  hash algorithms.  These constructors are much faster than calling
- *  the generic one passing it a python string and are noticably
+ *  the generic one passing it a python string and are noticeably
  *  faster than calling a python new() wrapper.  Thats important for
  *  code that wants to make hashes of a bunch of small strings.
  */
diff --git a/Modules/_io/iobase.c b/Modules/_io/iobase.c
index f07a0ca..472ef3b 100644
--- a/Modules/_io/iobase.c
+++ b/Modules/_io/iobase.c
@@ -90,7 +90,7 @@
     return NULL;
 }
 
-/* Positionning */
+/* Positioning */
 
 PyDoc_STRVAR(iobase_seek_doc,
     "Change stream position.\n"
diff --git a/Modules/_pickle.c b/Modules/_pickle.c
index f029ed6..a8d414e 100644
--- a/Modules/_pickle.c
+++ b/Modules/_pickle.c
@@ -2131,7 +2131,7 @@
         Py_UCS4 ch = PyUnicode_READ(kind, data, i);
         /* Map 32-bit characters to '\Uxxxxxxxx' */
         if (ch >= 0x10000) {
-            /* -1: substract 1 preallocated byte */
+            /* -1: subtract 1 preallocated byte */
             p = _PyBytesWriter_Prepare(&writer, p, 10-1);
             if (p == NULL)
                 goto error;
@@ -2149,7 +2149,7 @@
         }
         /* Map 16-bit characters, '\\' and '\n' to '\uxxxx' */
         else if (ch >= 256 || ch == '\\' || ch == '\n') {
-            /* -1: substract 1 preallocated byte */
+            /* -1: subtract 1 preallocated byte */
             p = _PyBytesWriter_Prepare(&writer, p, 6-1);
             if (p == NULL)
                 goto error;
diff --git a/Modules/_testcapimodule.c b/Modules/_testcapimodule.c
index 5d661f7..6fabc40 100644
--- a/Modules/_testcapimodule.c
+++ b/Modules/_testcapimodule.c
@@ -3798,7 +3798,7 @@
 {
     PyThreadState *tstate = PyThreadState_GET();
 
-    /* substract one to ignore the frame of the get_recursion_depth() call */
+    /* subtract one to ignore the frame of the get_recursion_depth() call */
     return PyLong_FromLong(tstate->recursion_depth - 1);
 }
 
diff --git a/Modules/_threadmodule.c b/Modules/_threadmodule.c
index 968181c..0219559 100644
--- a/Modules/_threadmodule.c
+++ b/Modules/_threadmodule.c
@@ -45,7 +45,7 @@
 /* Helper to acquire an interruptible lock with a timeout.  If the lock acquire
  * is interrupted, signal handlers are run, and if they raise an exception,
  * PY_LOCK_INTR is returned.  Otherwise, PY_LOCK_ACQUIRED or PY_LOCK_FAILURE
- * are returned, depending on whether the lock can be acquired withing the
+ * are returned, depending on whether the lock can be acquired within the
  * timeout.
  */
 static PyLockStatus
diff --git a/Modules/_tracemalloc.c b/Modules/_tracemalloc.c
index e3329c7..48f5b47 100644
--- a/Modules/_tracemalloc.c
+++ b/Modules/_tracemalloc.c
@@ -716,7 +716,7 @@
 
         if (ADD_TRACE(ptr2, new_size) < 0) {
             /* Memory allocation failed. The error cannot be reported to
-               the caller, because realloc() may already have shrinked the
+               the caller, because realloc() may already have shrunk the
                memory block and so removed bytes.
 
                This case is very unlikely: a hash entry has just been
diff --git a/Modules/binascii.c b/Modules/binascii.c
index 50b09fe..c3320ce 100644
--- a/Modules/binascii.c
+++ b/Modules/binascii.c
@@ -837,7 +837,7 @@
     if (in_byte == RUNCHAR) {
         INBYTE(in_repeat);
         /* only 1 byte will be written, but 2 bytes were preallocated:
-           substract 1 byte to prevent overallocation */
+           subtract 1 byte to prevent overallocation */
         writer.min_size--;
 
         if (in_repeat != 0) {
@@ -858,7 +858,7 @@
         if (in_byte == RUNCHAR) {
             INBYTE(in_repeat);
             /* only 1 byte will be written, but 2 bytes were preallocated:
-               substract 1 byte to prevent overallocation */
+               subtract 1 byte to prevent overallocation */
             writer.min_size--;
 
             if ( in_repeat == 0 ) {
diff --git a/Modules/mathmodule.c b/Modules/mathmodule.c
index 43aa229..95ea4f7 100644
--- a/Modules/mathmodule.c
+++ b/Modules/mathmodule.c
@@ -1274,7 +1274,7 @@
 
 /* Divide-and-conquer factorial algorithm
  *
- * Based on the formula and psuedo-code provided at:
+ * Based on the formula and pseudo-code provided at:
  * http://www.luschny.de/math/factorial/binarysplitfact.html
  *
  * Faster algorithms exist, but they're more complicated and depend on
diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index d896cc0..f94c322 100644
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -6611,7 +6611,7 @@
     PyModule_AddIntConstant(m, "SOMAXCONN", 5); /* Common value */
 #endif
 
-    /* Ancilliary message types */
+    /* Ancillary message types */
 #ifdef  SCM_RIGHTS
     PyModule_AddIntMacro(m, SCM_RIGHTS);
 #endif
diff --git a/Modules/zipimport.c b/Modules/zipimport.c
index e840271..6d5c68a 100644
--- a/Modules/zipimport.c
+++ b/Modules/zipimport.c
@@ -1315,7 +1315,7 @@
     return code;
 }
 
-/* Replace any occurances of "\r\n?" in the input string with "\n".
+/* Replace any occurrences of "\r\n?" in the input string with "\n".
    This converts DOS and Mac line endings to Unix line endings.
    Also append a trailing "\n" to be compatible with
    PyParser_SimpleParseFile(). Returns a new reference. */
diff --git a/Objects/bytearrayobject.c b/Objects/bytearrayobject.c
index b6631f9..c6d0707 100644
--- a/Objects/bytearrayobject.c
+++ b/Objects/bytearrayobject.c
@@ -481,7 +481,7 @@
 
                If growth < 0 and lo != 0, the operation is completed, but a
                MemoryError is still raised and the memory block is not
-               shrinked. Otherwise, the bytearray is restored in its previous
+               shrunk. Otherwise, the bytearray is restored in its previous
                state and a MemoryError is raised. */
             if (lo == 0) {
                 self->ob_start += growth;
diff --git a/Objects/bytesobject.c b/Objects/bytesobject.c
index 4fdaa52..b0d9b39 100644
--- a/Objects/bytesobject.c
+++ b/Objects/bytesobject.c
@@ -247,7 +247,7 @@
             ++f;
         }
 
-        /* substract bytes preallocated for the format string
+        /* subtract bytes preallocated for the format string
            (ex: 2 for "%s") */
         writer.min_size -= (f - p + 1);
 
@@ -1093,7 +1093,7 @@
     assert(PyBytes_Check(w));
 
     /* Append bytes to output buffer. */
-    writer->min_size--;   /* substract 1 preallocated byte */
+    writer->min_size--;   /* subtract 1 preallocated byte */
     p = _PyBytesWriter_WriteBytes(writer, p,
                                   PyBytes_AS_STRING(w),
                                   PyBytes_GET_SIZE(w));
diff --git a/Objects/codeobject.c b/Objects/codeobject.c
index f089f75..78f5034 100644
--- a/Objects/codeobject.c
+++ b/Objects/codeobject.c
@@ -719,7 +719,7 @@
     /* possible optimization: if f->f_lasti == instr_ub
        (likely to be a common case) then we already know
        instr_lb -- if we stored the matching value of p
-       somwhere we could skip the first while loop. */
+       somewhere we could skip the first while loop. */
 
     /* See lnotab_notes.txt for the description of
        co_lnotab.  A point to remember: increments to p
diff --git a/Objects/listsort.txt b/Objects/listsort.txt
index fef982f..17d2797 100644
--- a/Objects/listsort.txt
+++ b/Objects/listsort.txt
@@ -694,7 +694,7 @@
 
 But in CPython's case, comparisons are extraordinarily expensive compared to
 moving data, and the details matter.  Moving objects is just copying
-pointers.  Comparisons can be arbitrarily expensive (can invoke arbitary
+pointers.  Comparisons can be arbitrarily expensive (can invoke arbitrary
 user-supplied Python code), but even in simple cases (like 3 < 4) _all_
 decisions are made at runtime:  what's the type of the left comparand?  the
 type of the right?  do they need to be coerced to a common type?  where's the
diff --git a/Objects/longobject.c b/Objects/longobject.c
index 9d6474c..4ace778 100644
--- a/Objects/longobject.c
+++ b/Objects/longobject.c
@@ -368,7 +368,7 @@
 /* Checking for overflow in PyLong_AsLong is a PITA since C doesn't define
  * anything about what happens when a signed integer operation overflows,
  * and some compilers think they're doing you a favor by being "clever"
- * then.  The bit pattern for the largest postive signed long is
+ * then.  The bit pattern for the largest positive signed long is
  * (unsigned long)LONG_MAX, and for the smallest negative signed long
  * it is abs(LONG_MIN), which we could write -(unsigned long)LONG_MIN.
  * However, some other compilers warn about applying unary minus to an
diff --git a/Objects/stringlib/codecs.h b/Objects/stringlib/codecs.h
index 2846d7e..749e765 100644
--- a/Objects/stringlib/codecs.h
+++ b/Objects/stringlib/codecs.h
@@ -347,7 +347,7 @@
                 break;
 
             case _Py_ERROR_BACKSLASHREPLACE:
-                /* substract preallocated bytes */
+                /* subtract preallocated bytes */
                 writer.min_size -= max_char_size * (endpos - startpos);
                 p = backslashreplace(&writer, p,
                                      unicode, startpos, endpos);
@@ -357,7 +357,7 @@
                 break;
 
             case _Py_ERROR_XMLCHARREFREPLACE:
-                /* substract preallocated bytes */
+                /* subtract preallocated bytes */
                 writer.min_size -= max_char_size * (endpos - startpos);
                 p = xmlcharrefreplace(&writer, p,
                                       unicode, startpos, endpos);
@@ -387,7 +387,7 @@
                 if (!rep)
                     goto error;
 
-                /* substract preallocated bytes */
+                /* subtract preallocated bytes */
                 writer.min_size -= max_char_size;
 
                 if (PyBytes_Check(rep)) {
diff --git a/Objects/typeobject.c b/Objects/typeobject.c
index 9b3d153..5f0db2b 100644
--- a/Objects/typeobject.c
+++ b/Objects/typeobject.c
@@ -3792,7 +3792,7 @@
     /* Try to fetch cached copy of copyreg from sys.modules first in an
        attempt to avoid the import overhead. Previously this was implemented
        by storing a reference to the cached module in a static variable, but
-       this broke when multiple embeded interpreters were in use (see issue
+       this broke when multiple embedded interpreters were in use (see issue
        #17408 and #19088). */
     copyreg_module = PyDict_GetItemWithError(interp->modules, copyreg_str);
     if (copyreg_module != NULL) {
diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index 2d31c70..0226e42 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -6110,7 +6110,7 @@
 
         /* Escape backslashes */
         if (ch == '\\') {
-            /* -1: substract 1 preallocated byte */
+            /* -1: subtract 1 preallocated byte */
             p = _PyBytesWriter_Prepare(&writer, p, 2-1);
             if (p == NULL)
                 goto error;
@@ -6183,7 +6183,7 @@
 
         /* Map non-printable US ASCII to '\xhh' */
         else if (ch < ' ' || ch >= 0x7F) {
-            /* -1: substract 1 preallocated byte */
+            /* -1: subtract 1 preallocated byte */
             p = _PyBytesWriter_Prepare(&writer, p, 4-1);
             if (p == NULL)
                 goto error;
@@ -6363,7 +6363,7 @@
         if (ch >= 0x10000) {
             assert(ch <= MAX_UNICODE);
 
-            /* -1: substract 1 preallocated byte */
+            /* -1: subtract 1 preallocated byte */
             p = _PyBytesWriter_Prepare(&writer, p, 10-1);
             if (p == NULL)
                 goto error;
@@ -6381,7 +6381,7 @@
         }
         /* Map 16-bit characters to '\uxxxx' */
         else if (ch >= 256) {
-            /* -1: substract 1 preallocated byte */
+            /* -1: subtract 1 preallocated byte */
             p = _PyBytesWriter_Prepare(&writer, p, 6-1);
             if (p == NULL)
                 goto error;
@@ -6705,7 +6705,7 @@
                 break;
 
             case _Py_ERROR_BACKSLASHREPLACE:
-                /* substract preallocated bytes */
+                /* subtract preallocated bytes */
                 writer.min_size -= (collend - collstart);
                 str = backslashreplace(&writer, str,
                                        unicode, collstart, collend);
@@ -6715,7 +6715,7 @@
                 break;
 
             case _Py_ERROR_XMLCHARREFREPLACE:
-                /* substract preallocated bytes */
+                /* subtract preallocated bytes */
                 writer.min_size -= (collend - collstart);
                 str = xmlcharrefreplace(&writer, str,
                                         unicode, collstart, collend);
@@ -6747,7 +6747,7 @@
                 if (rep == NULL)
                     goto onError;
 
-                /* substract preallocated bytes */
+                /* subtract preallocated bytes */
                 writer.min_size -= 1;
 
                 if (PyBytes_Check(rep)) {
diff --git a/Python/ceval.c b/Python/ceval.c
index 00d52b4..5a542f0 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -2090,16 +2090,16 @@
 
         TARGET(YIELD_FROM) {
             PyObject *v = POP();
-            PyObject *reciever = TOP();
+            PyObject *receiver = TOP();
             int err;
-            if (PyGen_CheckExact(reciever) || PyCoro_CheckExact(reciever)) {
-                retval = _PyGen_Send((PyGenObject *)reciever, v);
+            if (PyGen_CheckExact(receiver) || PyCoro_CheckExact(receiver)) {
+                retval = _PyGen_Send((PyGenObject *)receiver, v);
             } else {
                 _Py_IDENTIFIER(send);
                 if (v == Py_None)
-                    retval = Py_TYPE(reciever)->tp_iternext(reciever);
+                    retval = Py_TYPE(receiver)->tp_iternext(receiver);
                 else
-                    retval = _PyObject_CallMethodIdObjArgs(reciever, &PyId_send, v, NULL);
+                    retval = _PyObject_CallMethodIdObjArgs(receiver, &PyId_send, v, NULL);
             }
             Py_DECREF(v);
             if (retval == NULL) {
@@ -2110,7 +2110,7 @@
                 err = _PyGen_FetchStopIterationValue(&val);
                 if (err < 0)
                     goto error;
-                Py_DECREF(reciever);
+                Py_DECREF(receiver);
                 SET_TOP(val);
                 DISPATCH();
             }
diff --git a/Python/condvar.h b/Python/condvar.h
index bb5b1b6..ced910f 100644
--- a/Python/condvar.h
+++ b/Python/condvar.h
@@ -238,7 +238,7 @@
     cv->waiting++;
     PyMUTEX_UNLOCK(cs);
     /* "lost wakeup bug" would occur if the caller were interrupted here,
-     * but we are safe because we are using a semaphore wich has an internal
+     * but we are safe because we are using a semaphore which has an internal
      * count.
      */
     wait = WaitForSingleObjectEx(cv->sem, ms, FALSE);
diff --git a/Python/formatter_unicode.c b/Python/formatter_unicode.c
index 929884c..db9f5b8 100644
--- a/Python/formatter_unicode.c
+++ b/Python/formatter_unicode.c
@@ -121,7 +121,7 @@
 } InternalFormatSpec;
 
 #if 0
-/* Occassionally useful for debugging. Should normally be commented out. */
+/* Occasionally useful for debugging. Should normally be commented out. */
 static void
 DEBUG_PRINT_FORMAT_SPEC(InternalFormatSpec *format)
 {
diff --git a/README b/README
index 2fc5e81..a07ac24 100644
--- a/README
+++ b/README
@@ -68,7 +68,7 @@
 After this instrumented version of the interpreter is built, the Makefile
 will automatically run a training workload. This is necessary in order to
 profile the interpreter execution. Note also that any output, both stdout
-and stderr, that may appear at this step is supressed.
+and stderr, that may appear at this step is suppressed.
 
 Finally, the last step is to rebuild the interpreter, using the information
 collected in the previous one. The end result will be a Python binary
diff --git a/configure b/configure
index 0d73045..22eb638 100755
--- a/configure
+++ b/configure
@@ -7112,7 +7112,7 @@
         # Calculate an appropriate deployment target for this build:
         # The deployment target value is used explicitly to enable certain
         # features are enabled (such as builtin libedit support for readline)
-        # through the use of Apple's Availabiliy Macros and is used as a
+        # through the use of Apple's Availability Macros and is used as a
         # component of the string returned by distutils.get_platform().
         #
         # Use the value from:
diff --git a/configure.ac b/configure.ac
index 2e0cb39..f68069d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1639,7 +1639,7 @@
         # Calculate an appropriate deployment target for this build:
         # The deployment target value is used explicitly to enable certain
         # features are enabled (such as builtin libedit support for readline)
-        # through the use of Apple's Availabiliy Macros and is used as a
+        # through the use of Apple's Availability Macros and is used as a
         # component of the string returned by distutils.get_platform().
         #
         # Use the value from: