Fix typos mostly in comments, docs and test names (GH-15209)

Doc/c-api/init_config.rst

@@ -876,7 +876,7 @@ Path Configuration
 If at least one "output field" is not set, Python computes the path
 configuration to fill unset fields. If
 :c:member:`~PyConfig.module_search_paths_set` is equal to 0,
-:c:member:`~PyConfig.module_search_paths` is overriden and
+:c:member:`~PyConfig.module_search_paths` is overridden and
 :c:member:`~PyConfig.module_search_paths_set` is set to 1.
 
 It is possible to completely ignore the function computing the default

Doc/library/importlib.rst

@@ -1379,8 +1379,8 @@ an :term:`importer`.
    bytecode file. An empty string represents no optimization, so
    ``/foo/bar/baz.py`` with an *optimization* of ``''`` will result in a
    bytecode path of ``/foo/bar/__pycache__/baz.cpython-32.pyc``. ``None`` causes
-   the interpter's optimization level to be used. Any other value's string
-   representation being used, so ``/foo/bar/baz.py`` with an *optimization* of
+   the interpreter's optimization level to be used. Any other value's string
+   representation is used, so ``/foo/bar/baz.py`` with an *optimization* of
    ``2`` will lead to the bytecode path of
    ``/foo/bar/__pycache__/baz.cpython-32.opt-2.pyc``. The string representation
    of *optimization* can only be alphanumeric, else :exc:`ValueError` is raised.

Include/pyhash.h

@@ -119,7 +119,7 @@ PyAPI_FUNC(PyHash_FuncDef*) PyHash_GetFuncDef(void);
  * configure script.
  *
  * - FNV is available on all platforms and architectures.
- * - SIPHASH24 only works on plaforms that don't require aligned memory for integers.
+ * - SIPHASH24 only works on platforms that don't require aligned memory for integers.
  * - With EXTERNAL embedders can provide an alternative implementation with::
  *
  *     PyHash_FuncDef PyHash_Func = {...};

Lib/asyncio/streams.py

@@ -71,7 +71,7 @@ def connect(host=None, port=None, *,
             ssl_handshake_timeout=None,
             happy_eyeballs_delay=None, interleave=None):
     # Design note:
-    # Don't use decorator approach but exilicit non-async
+    # Don't use decorator approach but explicit non-async
     # function to fail fast and explicitly
     # if passed arguments don't match the function signature
     return _ContextManagerHelper(_connect(host, port, limit,
@@ -442,7 +442,7 @@ if hasattr(socket, 'AF_UNIX'):
                      ssl_handshake_timeout=None):
         """Similar to `connect()` but works with UNIX Domain Sockets."""
         # Design note:
-        # Don't use decorator approach but exilicit non-async
+        # Don't use decorator approach but explicit non-async
         # function to fail fast and explicitly
         # if passed arguments don't match the function signature
         return _ContextManagerHelper(_connect_unix(path,

Lib/bdb.py

@@ -38,7 +38,7 @@ class Bdb:
         """Return canonical form of filename.
 
         For real filenames, the canonical form is a case-normalized (on
-        case insenstive filesystems) absolute path.  'Filenames' with
+        case insensitive filesystems) absolute path.  'Filenames' with
         angle brackets, such as "<stdin>", generated in interactive
         mode, are returned unchanged.
         """

Lib/multiprocessing/util.py

@@ -238,7 +238,7 @@ class Finalize(object):
         if self._kwargs:
             x += ', kwargs=' + str(self._kwargs)
         if self._key[0] is not None:
-            x += ', exitprority=' + str(self._key[0])
+            x += ', exitpriority=' + str(self._key[0])
         return x + '>'
 
 

Lib/test/lock_tests.py

@@ -467,7 +467,7 @@ class ConditionTests(BaseTestCase):
         # of the workers.
         # Secondly, this test assumes that condition variables are not subject
         # to spurious wakeups.  The absence of spurious wakeups is an implementation
-        # detail of Condition Cariables in current CPython, but in general, not
+        # detail of Condition Variables in current CPython, but in general, not
         # a guaranteed property of condition variables as a programming
         # construct.  In particular, it is possible that this can no longer
         # be conveniently guaranteed should their implementation ever change.

Lib/test/test_cmd_line_script.py

@@ -474,7 +474,7 @@ class CmdLineTest(unittest.TestCase):
             ('os.path', br'loader.*cannot handle'),
             ('importlib', br'No module named.*'
                 br'is a package and cannot be directly executed'),
-            ('importlib.nonexistant', br'No module named'),
+            ('importlib.nonexistent', br'No module named'),
             ('.unittest', br'Relative module names not supported'),
         )
         for name, regex in tests:

Lib/test/test_collections.py

@@ -1927,7 +1927,7 @@ class TestCounter(unittest.TestCase):
                  'r', 'c', 'd', ' ', 's', 's', 'i', 'i', 'm', 'm', 'l'])
 
         # Math operations order first by the order encountered in the left
-        # operand and then by the order encounted in the right operand.
+        # operand and then by the order encountered in the right operand.
         ps = 'aaabbcdddeefggghhijjjkkl'
         qs = 'abbcccdeefffhkkllllmmnno'
         order = {letter: i for i, letter in enumerate(dict.fromkeys(ps + qs))}

Lib/test/test_descr.py

@@ -3025,7 +3025,7 @@ order (MRO) for bases """
         # Testing a str subclass used as dict key ..
 
         class cistr(str):
-            """Sublcass of str that computes __eq__ case-insensitively.
+            """Subclass of str that computes __eq__ case-insensitively.
 
             Also computes a hash code of the string in canonical form.
             """

Lib/test/test_format.py

@@ -48,7 +48,7 @@ def testformat(formatstr, args, output=None, limit=None, overflowok=False):
 
 def testcommon(formatstr, args, output=None, limit=None, overflowok=False):
     # if formatstr is a str, test str, bytes, and bytearray;
-    # otherwise, test bytes and bytearry
+    # otherwise, test bytes and bytearray
     if isinstance(formatstr, str):
         testformat(formatstr, args, output, limit, overflowok)
         b_format = formatstr.encode('ascii')

Lib/test/test_gc.py

@@ -912,7 +912,7 @@ class GCCallbackTests(unittest.TestCase):
     def test_collect_garbage(self):
         self.preclean()
         # Each of these cause four objects to be garbage: Two
-        # Uncolectables and their instance dicts.
+        # Uncollectables and their instance dicts.
         Uncollectable()
         Uncollectable()
         C1055820(666)

Lib/test/test_hmac.py

@@ -445,7 +445,7 @@ class CompareDigestTestCase(unittest.TestCase):
         a, b = bytearray(b"foobar"), bytearray(b"foobar")
         self.assertTrue(hmac.compare_digest(a, b))
 
-        # Testing bytearrays of diffeent lengths
+        # Testing bytearrays of different lengths
         a, b = bytearray(b"foobar"), bytearray(b"foo")
         self.assertFalse(hmac.compare_digest(a, b))
 
@@ -458,7 +458,7 @@ class CompareDigestTestCase(unittest.TestCase):
         self.assertTrue(hmac.compare_digest(a, b))
         self.assertTrue(hmac.compare_digest(b, a))
 
-        # Testing byte bytearray of diffeent lengths
+        # Testing byte bytearray of different lengths
         a, b = bytearray(b"foobar"), b"foo"
         self.assertFalse(hmac.compare_digest(a, b))
         self.assertFalse(hmac.compare_digest(b, a))
@@ -472,7 +472,7 @@ class CompareDigestTestCase(unittest.TestCase):
         a, b = "foobar", "foobar"
         self.assertTrue(hmac.compare_digest(a, b))
 
-        # Testing str of diffeent lengths
+        # Testing str of different lengths
         a, b = "foo", "foobar"
         self.assertFalse(hmac.compare_digest(a, b))
 

Lib/test/test_importlib/source/test_file_loader.py

@@ -325,7 +325,7 @@ class SimpleTest(abc.LoaderTests):
             )
 
     @util.writes_bytecode_files
-    def test_overiden_unchecked_hash_based_pyc(self):
+    def test_overridden_unchecked_hash_based_pyc(self):
         with util.create_modules('_temp') as mapping, \
              unittest.mock.patch('_imp.check_hash_based_pycs', 'always'):
             source = mapping['_temp']

Lib/test/test_importlib/test_main.py

@@ -32,7 +32,7 @@ class BasicTests(fixtures.DistInfoPkg, unittest.TestCase):
 class ImportTests(fixtures.DistInfoPkg, unittest.TestCase):
     def test_import_nonexistent_module(self):
         # Ensure that the MetadataPathFinder does not crash an import of a
-        # non-existant module.
+        # non-existent module.
         with self.assertRaises(ImportError):
             importlib.import_module('does_not_exist')
 

Lib/test/test_importlib/util.py

@@ -443,7 +443,7 @@ def create_package(file, path, is_package=True, contents=()):
                 yield entry
 
     name = 'testingpackage'
-    # Unforunately importlib.util.module_from_spec() was not introduced until
+    # Unfortunately importlib.util.module_from_spec() was not introduced until
     # Python 3.5.
     module = types.ModuleType(name)
     loader = Reader()

Lib/test/test_statistics.py

@@ -1810,13 +1810,13 @@ class TestMode(NumericTestCase, AverageMixin, UnivariateTypeMixin):
         # Test mode with bimodal data.
         data = [1, 1, 2, 2, 2, 2, 3, 4, 5, 6, 6, 6, 6, 7, 8, 9, 9]
         assert data.count(2) == data.count(6) == 4
-        # mode() should return 2, the first encounted mode
+        # mode() should return 2, the first encountered mode
         self.assertEqual(self.func(data), 2)
 
     def test_unique_data(self):
         # Test mode when data points are all unique.
         data = list(range(10))
-        # mode() should return 0, the first encounted mode
+        # mode() should return 0, the first encountered mode
         self.assertEqual(self.func(data), 0)
 
     def test_none_data(self):

Lib/test/test_tracemalloc.py

@@ -885,7 +885,7 @@ class TestCommandLine(unittest.TestCase):
             return
         if b'PYTHONTRACEMALLOC: invalid number of frames' in stderr:
             return
-        self.fail(f"unexpeced output: {stderr!a}")
+        self.fail(f"unexpected output: {stderr!a}")
 
 
     def test_env_var_invalid(self):
@@ -914,7 +914,7 @@ class TestCommandLine(unittest.TestCase):
             return
         if b'-X tracemalloc=NFRAME: invalid number of frames' in stderr:
             return
-        self.fail(f"unexpeced output: {stderr!a}")
+        self.fail(f"unexpected output: {stderr!a}")
 
     def test_sys_xoptions_invalid(self):
         for nframe in INVALID_NFRAME:

Lib/test/test_warnings/__init__.py

@@ -714,7 +714,7 @@ class _WarningsTests(BaseTest, unittest.TestCase):
             self.assertRaises(TypeError, self.module.warn, "Warning!")
 
     def test_show_warning_output(self):
-        # With showarning() missing, make sure that output is okay.
+        # With showwarning() missing, make sure that output is okay.
         text = 'test show_warning'
         with original_warnings.catch_warnings(module=self.module):
             self.module.filterwarnings("always", category=UserWarning)

Lib/test/test_winreg.py

@@ -229,7 +229,7 @@ class LocalWinregTests(BaseWinregTests):
         h.Close()
         self.assertEqual(h.handle, 0)
 
-    def test_inexistant_remote_registry(self):
+    def test_nonexistent_remote_registry(self):
         connect = lambda: ConnectRegistry("abcdefghijkl", HKEY_CURRENT_USER)
         self.assertRaises(OSError, connect)
 

Lib/test/test_wsgiref.py

@@ -586,10 +586,10 @@ class HandlerTests(TestCase):
         expected.update({
             # X doesn't exist in os_environ
             "X": "Y",
-            # HOME is overriden by TestHandler
+            # HOME is overridden by TestHandler
             'HOME': "/override/home",
 
-            # overriden by setup_testing_defaults()
+            # overridden by setup_testing_defaults()
             "SCRIPT_NAME": "",
             "SERVER_NAME": "127.0.0.1",
 

Lib/tkinter/filedialog.py

@@ -469,7 +469,7 @@ def test():
     except (ImportError, AttributeError):
         pass
 
-    # dialog for openening files
+    # dialog for opening files
 
     openfilename=askopenfilename(filetypes=[("all files", "*")])
     try:

Lib/unittest/test/testmock/testpatch.py

@@ -1651,7 +1651,7 @@ class PatchTest(unittest.TestCase):
             p1.stop()
         self.assertEqual(squizz.squozz, 3)
 
-    def test_patch_propogrates_exc_on_exit(self):
+    def test_patch_propagates_exc_on_exit(self):
         class holder:
             exc_info = None, None, None
 
@@ -1680,9 +1680,9 @@ class PatchTest(unittest.TestCase):
 
         self.assertIs(holder.exc_info[0], RuntimeError)
         self.assertIsNotNone(holder.exc_info[1],
-                            'exception value not propgated')
+                            'exception value not propagated')
         self.assertIsNotNone(holder.exc_info[2],
-                            'exception traceback not propgated')
+                            'exception traceback not propagated')
 
 
     def test_create_and_specs(self):

Lib/uuid.py

@@ -680,7 +680,7 @@ def _random_getnode():
     return random.getrandbits(48) | (1 << 40)
 
 
-# _OS_GETTERS, when known, are targetted for a specific OS or platform.
+# _OS_GETTERS, when known, are targeted for a specific OS or platform.
 # The order is by 'common practice' on the specified platform.
 # Note: 'posix' and 'windows' _OS_GETTERS are prefixed by a dll/dlload() method
 # which, when successful, means none of these "external" methods are called.

Misc/HISTORY

@@ -1231,7 +1231,7 @@ Library
 - Issue #22448: Improve canceled timer handles cleanup to prevent
   unbound memory usage. Patch by Joshua Moore-Oliva.
 
-- Issue #23009: Make sure selectors.EpollSelecrtor.select() works when no
+- Issue #23009: Make sure selectors.EpollSelector.select() works when no
   FD is registered.
 
 IDLE
@@ -16660,7 +16660,7 @@ Core and Builtins
   Exception (KeyboardInterrupt, and SystemExit) propagate instead of
   ignoring them.
 
-- #3021 Exception reraising sematics have been significantly improved.  However,
+- #3021 Exception reraising semantics have been significantly improved.  However,
   f_exc_type, f_exc_value, and f_exc_traceback cannot be accessed from Python
   code anymore.
 

Misc/NEWS.d/3.5.0a1.rst

@@ -1255,7 +1255,7 @@ Support wrapped callables in doctest. Patch by Claudiu Popa.
 .. nonce: -sW7gk
 .. section: Library
 
-Make sure selectors.EpollSelecrtor.select() works when no FD is registered.
+Make sure selectors.EpollSelector.select() works when no FD is registered.
 
 ..
 

Misc/NEWS.d/3.5.4rc1.rst

@@ -913,7 +913,7 @@ Fixed infinite recursion in the repr of uninitialized ctypes.CDLL instances.
 
 Fixed race condition in C implementation of functools.lru_cache. KeyError
 could be raised when cached function with full cache was simultaneously
-called from differen threads with the same uncached arguments.
+called from different threads with the same uncached arguments.
 
 ..
 

Misc/NEWS.d/3.6.0b1.rst

@@ -1148,7 +1148,7 @@ dict constraint in ForwardRef._eval_type (upstream #252)
 .. nonce: hxh6_h
 .. section: Library
 
-Make ``_normalize`` parameter to ``Fraction`` constuctor keyword-only, so
+Make ``_normalize`` parameter to ``Fraction`` constructor keyword-only, so
 that ``Fraction(2, 3, 4)`` now raises ``TypeError``.
 
 ..

Misc/NEWS.d/3.6.0rc1.rst

@@ -48,7 +48,7 @@ they still are deprecated and will be disabled in 3.7.
 .. section: Library
 
 Fix a regression introduced in warnings.catch_warnings(): call
-warnings.showwarning() if it was overriden inside the context manager.
+warnings.showwarning() if it was overridden inside the context manager.
 
 ..
 

Misc/NEWS.d/3.6.1rc1.rst

@@ -435,7 +435,7 @@ Fix an important omission by adding Deque to the typing module.
 
 Fixed race condition in C implementation of functools.lru_cache. KeyError
 could be raised when cached function with full cache was simultaneously
-called from differen threads with the same uncached arguments.
+called from different threads with the same uncached arguments.
 
 ..
 

Misc/NEWS.d/3.7.0a1.rst

@@ -3651,7 +3651,7 @@ regular expression objects.
 
 Fixed race condition in C implementation of functools.lru_cache. KeyError
 could be raised when cached function with full cache was simultaneously
-called from differen threads with the same uncached arguments.
+called from different threads with the same uncached arguments.
 
 ..
 

Misc/NEWS.d/3.8.0a1.rst

@@ -2418,7 +2418,7 @@ over browsers in the ``BROWSER`` environment variable.
 .. nonce: eSLKBE
 .. section: Library
 
-Avoid stripping trailing whitespace in doctest fancy diff. Orignial patch by
+Avoid stripping trailing whitespace in doctest fancy diff. Original patch by
 R. David Murray & Jairo Trad. Enhanced by Sanyam Khurana.
 
 ..

Misc/NEWS.d/3.8.0a4.rst

@@ -1110,7 +1110,7 @@ Add ``-fmax-type-align=8`` to CFLAGS when clang compiler is detected. The
 pymalloc memory allocator aligns memory on 8 bytes. On x86-64, clang expects
 alignment on 16 bytes by default and so uses MOVAPS instruction which can
 lead to segmentation fault. Instruct clang that Python is limited to
-alignemnt on 8 bytes to use MOVUPS instruction instead: slower but don't
+alignment on 8 bytes to use MOVUPS instruction instead: slower but don't
 trigger a SIGSEGV if the memory is not aligned on 16 bytes. Sadly, the flag
 must be added to ``CFLAGS`` and not just ``CFLAGS_NODIST``, since third
 party C extensions can have the same issue.

Misc/NEWS.d/3.8.0b1.rst

@@ -1262,7 +1262,7 @@ Reinitialize logging.Handler locks in forked child processes instead of
 attempting to acquire them all in the parent before forking only to be
 released in the child process.  The acquire/release pattern was leading to
 deadlocks in code that has implemented any form of chained logging handlers
-that depend upon one another as the lock acquision order cannot be
+that depend upon one another as the lock acquisition order cannot be
 guaranteed.
 
 ..

Modules/_ctypes/callproc.c

@@ -110,7 +110,7 @@ static void pymem_destructor(PyObject *ptr)
   WinDLL(..., use_last_error=True) swap the system LastError value with the
   ctypes private copy.
 
-  The values are also swapped immeditately before and after ctypes callback
+  The values are also swapped immediately before and after ctypes callback
   functions are called, if the callbacks are constructed using the new
   optional use_errno parameter set to True: CFUNCTYPE(..., use_errno=TRUE) or
   WINFUNCTYPE(..., use_errno=True).

Modules/_ctypes/stgdict.c

@@ -352,7 +352,7 @@ PyCStructUnionType_update_stgdict(PyObject *type, PyObject *fields, int isStruct
     int big_endian;
 
     /* HACK Alert: I cannot be bothered to fix ctypes.com, so there has to
-       be a way to use the old, broken sematics: _fields_ are not extended
+       be a way to use the old, broken semantics: _fields_ are not extended
        but replaced in subclasses.
 
        XXX Remove this in ctypes 1.0!

Modules/_io/bytesio.c

@@ -841,7 +841,7 @@ bytesio_setstate(bytesio *self, PyObject *state)
 
     /* Set carefully the position value. Alternatively, we could use the seek
        method instead of modifying self->pos directly to better protect the
-       object internal state against errneous (or malicious) inputs. */
+       object internal state against erroneous (or malicious) inputs. */
     position_obj = PyTuple_GET_ITEM(state, 1);
     if (!PyLong_Check(position_obj)) {
         PyErr_Format(PyExc_TypeError,

Modules/_io/stringio.c

@@ -899,7 +899,7 @@ stringio_setstate(stringio *self, PyObject *state)
 
     /* Set carefully the position value. Alternatively, we could use the seek
        method instead of modifying self->pos directly to better protect the
-       object internal state against errneous (or malicious) inputs. */
+       object internal state against erroneous (or malicious) inputs. */
     position_obj = PyTuple_GET_ITEM(state, 2);
     if (!PyLong_Check(position_obj)) {
         PyErr_Format(PyExc_TypeError,

Modules/_testcapimodule.c

@@ -4634,7 +4634,7 @@ check_pyobject_forbidden_bytes_is_freed(PyObject *self, PyObject *Py_UNUSED(args
     /* Initialize reference count to avoid early crash in ceval or GC */
     Py_REFCNT(op) = 1;
     /* ob_type field is after the memory block: part of "forbidden bytes"
-       when using debug hooks on memory allocatrs! */
+       when using debug hooks on memory allocators! */
     return test_pyobject_is_freed("check_pyobject_forbidden_bytes_is_freed", op);
 }
 

Modules/expat/loadlibrary.c

@@ -53,12 +53,12 @@ typedef HMODULE (APIENTRY *LOADLIBRARYEX_FN)(LPCTSTR, HANDLE, DWORD);
 /* See function definitions in winbase.h */
 #ifdef UNICODE
 #  ifdef _WIN32_WCE
-#    define LOADLIBARYEX  L"LoadLibraryExW"
+#    define LOADLIBRARYEX  L"LoadLibraryExW"
 #  else
-#    define LOADLIBARYEX  "LoadLibraryExW"
+#    define LOADLIBRARYEX  "LoadLibraryExW"
 #  endif
 #else
-#  define LOADLIBARYEX    "LoadLibraryExA"
+#  define LOADLIBRARYEX    "LoadLibraryExA"
 #endif
 
 
@@ -88,7 +88,7 @@ HMODULE _Expat_LoadLibrary(LPCTSTR filename)
 
   /* Attempt to find LoadLibraryEx() which is only available on Windows 2000
      and above */
-  pLoadLibraryEx = (LOADLIBRARYEX_FN) GetProcAddress(hKernel32, LOADLIBARYEX);
+  pLoadLibraryEx = (LOADLIBRARYEX_FN) GetProcAddress(hKernel32, LOADLIBRARYEX);
 
   /* Detect if there's already a path in the filename and load the library if
      there is. Note: Both back slashes and forward slashes have been supported

Modules/expat/xmlparse.c

@@ -3399,7 +3399,7 @@ storeAtts(XML_Parser parser, const ENCODING *enc,
            * has to have passed through the hash table lookup once
            * already.  That implies that an entry for it already
            * exists, so the lookup above will return a pointer to
-           * already allocated memory.  There is no opportunaity for
+           * already allocated memory.  There is no opportunity for
            * the allocator to fail, so the condition above cannot be
            * fulfilled.
            *

Modules/termios.c

@@ -18,7 +18,7 @@
 #include <sys/ioctl.h>
 
 /* HP-UX requires that this be included to pick up MDCD, MCTS, MDSR,
- * MDTR, MRI, and MRTS (appearantly used internally by some things
+ * MDTR, MRI, and MRTS (apparently used internally by some things
  * defined as macros; these are not used here directly).
  */
 #ifdef HAVE_SYS_MODEM_H

Objects/listsort.txt

@@ -328,7 +328,7 @@ found is still high in the memory hierarchy.  We also can't delay merging
 unmerged, and the stack has a fixed size.
 
 What turned out to be a good compromise maintains two invariants on the
-stack entries, where A, B and C are the lengths of the three righmost not-yet
+stack entries, where A, B and C are the lengths of the three rightmost not-yet
 merged slices:
 
 1.  A > B+C

Objects/typeobject.c

@@ -117,7 +117,7 @@ find_signature(const char *name, const char *doc)
 #define SIGNATURE_END_MARKER         ")\n--\n\n"
 #define SIGNATURE_END_MARKER_LENGTH  6
 /*
- * skips past the end of the docstring's instrospection signature.
+ * skips past the end of the docstring's introspection signature.
  * (assumes doc starts with a valid signature prefix.)
  */
 static const char *

Python/ast.c

@@ -5356,7 +5356,7 @@ typedef struct {
        doubling the number allocated each time. Note that the f-string
        f'{0}a{1}' contains 3 expr_ty's: 2 FormattedValue's, and one
        Constant for the literal 'a'. So you add expr_ty's about twice as
-       fast as you add exressions in an f-string. */
+       fast as you add expressions in an f-string. */
 
     Py_ssize_t allocated;  /* Number we've allocated. */
     Py_ssize_t size;       /* Number we've used. */

Python/pystate.c

@@ -729,7 +729,7 @@ PyState_RemoveModule(struct PyModuleDef* def)
         return -1;
     }
     if (state->modules_by_index == NULL) {
-        Py_FatalError("PyState_RemoveModule: Interpreters module-list not acessible.");
+        Py_FatalError("PyState_RemoveModule: Interpreters module-list not accessible.");
         return -1;
     }
     if (index > PyList_GET_SIZE(state->modules_by_index)) {
@@ -888,7 +888,7 @@ PyThreadState_DeleteCurrent()
  * Note that, if there is a current thread state, it *must* be the one
  * passed as argument.  Also, this won't touch any other interpreters
  * than the current one, since we don't know which thread state should
- * be kept in those other interpreteres.
+ * be kept in those other interpreters.
  */
 void
 _PyThreadState_DeleteExcept(_PyRuntimeState *runtime, PyThreadState *tstate)