Fix typos in docs, error messages and comments

Doc/howto/isolating-extensions.rst

@@ -339,7 +339,7 @@ That is, heap types should:
 - Define a traverse function using ``Py_tp_traverse``, which
   visits the type (e.g. using ``Py_VISIT(Py_TYPE(self))``).
 
-Please refer to the the documentation of
+Please refer to the documentation of
 :c:macro:`Py_TPFLAGS_HAVE_GC` and :c:member:`~PyTypeObject.tp_traverse`
 for additional considerations.
 

Doc/library/threading.rst

@@ -1018,7 +1018,7 @@ method.  The :meth:`~Event.wait` method blocks until the flag is true.
       has not expired. The return value represents the
       reason that this blocking method returned; ``True`` if returning because
       the internal flag is set to true, or ``False`` if a timeout is given and
-      the the internal flag did not become true within the given wait time.
+      the internal flag did not become true within the given wait time.
 
       When the timeout argument is present and not ``None``, it should be a
       floating-point number specifying a timeout for the operation in seconds,

Doc/using/configure.rst

@@ -1120,7 +1120,7 @@ Remove built files.
 make distclean
 ^^^^^^^^^^^^^^
 
-In addition to the the work done by ``make clean``, remove files
+In addition to the work done by ``make clean``, remove files
 created by the configure script.  ``configure`` will have to be run
 before building again. [#]_
 

Include/internal/pycore_freelist_state.h

@@ -28,7 +28,7 @@ extern "C" {
 
 // A generic freelist of either PyObjects or other data structures.
 struct _Py_freelist {
-    // Entries are linked together using the first word of the the object.
+    // Entries are linked together using the first word of the object.
     // For PyObjects, this overlaps with the `ob_refcnt` field or the `ob_tid`
     // field.
     void *freelist;

Lib/test/test_webbrowser.py

@@ -244,7 +244,7 @@ def _obj_ref(self, *args):
     @unittest.skipIf(getattr(webbrowser, "objc", None) is None,
                      "iOS Webbrowser tests require ctypes")
     def setUp(self):
-        # Intercept the the objc library. Wrap the calls to get the
+        # Intercept the objc library. Wrap the calls to get the
         # references to classes and selectors to return strings, and
         # wrap msgSend to return stringified object references
         self.orig_objc = webbrowser.objc

Python/crossinterp.c

@@ -699,7 +699,7 @@ _PyXI_excinfo_InitFromException(_PyXI_excinfo *info, PyObject *exc)
         Py_DECREF(tbexc);
         if (info->errdisplay == NULL) {
 #ifdef Py_DEBUG
-            PyErr_FormatUnraisable("Exception ignored while formating TracebackException");
+            PyErr_FormatUnraisable("Exception ignored while formatting TracebackException");
 #endif
             PyErr_Clear();
         }