Issue #17047: remove doubled words added in 3.3

as reported by Serhiy Storchaka and Matthew Barnett.

Doc/library/email.policy.rst

@@ -327,7 +327,7 @@ added matters.  To illustrate::
       each resulting line to the ``max_line_length``.  If ``cte_type`` is
       ``7bit``, non-ascii binary data is CTE encoded using the ``unknown-8bit``
       charset.  Otherwise the original source header is used, with its existing
-      line breaks and and any (RFC invalid) binary data it may contain.
+      line breaks and any (RFC invalid) binary data it may contain.
 
 
 .. note::

Doc/library/ipaddress.rst

@@ -393,7 +393,7 @@ so to avoid duplication they are only documented for :class:`IPv4Network`.
    .. attribute:: is_link_local
 
       These attributes are true for the network as a whole if they are true
-      true for both the network address and the broadcast address
+      for both the network address and the broadcast address
 
    .. attribute:: network_address
 
@@ -452,7 +452,7 @@ so to avoid duplication they are only documented for :class:`IPv4Network`.
    .. method:: overlaps(other)
 
       ``True`` if this network is partly or wholly contained in *other* or
-      or *other* is wholly contained in this network.
+      *other* is wholly contained in this network.
 
    .. method:: address_exclude(network)
 
@@ -582,7 +582,7 @@ so to avoid duplication they are only documented for :class:`IPv4Network`.
    .. attribute:: is_site_local
 
       These attribute is true for the network as a whole if it is true
-      true for both the network address and the broadcast address
+      for both the network address and the broadcast address
 
 
 Operators

Doc/library/stdtypes.rst

@@ -2637,7 +2637,7 @@ copying.
          >>> z.nbytes
          48
 
-      Cast 1D/unsigned char to to 2D/unsigned long::
+      Cast 1D/unsigned char to 2D/unsigned long::
 
          >>> buf = struct.pack("L"*6, *list(range(6)))
          >>> x = memoryview(buf)

Doc/library/unittest.mock.rst

@@ -988,7 +988,7 @@ patch
     you pass in `create=True`, and the attribute doesn't exist, patch will
     create the attribute for you when the patched function is called, and
     delete it again afterwards. This is useful for writing tests against
-    attributes that your production code creates at runtime. It is off by by
+    attributes that your production code creates at runtime. It is off by
     default because it can be dangerous. With it switched on you can write
     passing tests against APIs that don't actually exist!
 

Lib/email/_encoded_words.py

@@ -14,7 +14,7 @@
 # cte (Content Transfer Encoding) is either 'q' or 'b' (ignoring case).  In
 # theory other letters could be used for other encodings, but in practice this
 # (almost?) never happens.  There could be a public API for adding entries
-# to to the CTE tables, but YAGNI for now.  'q' is Quoted Printable, 'b' is
+# to the CTE tables, but YAGNI for now.  'q' is Quoted Printable, 'b' is
 # Base64.  The meaning of encoded_string should be obvious.  'lang' is optional
 # as indicated by the brackets (they are not part of the syntax) but is almost
 # never encountered in practice.

Lib/email/_header_value_parser.py

@@ -1864,7 +1864,7 @@ def get_dtext(value):
     """ dtext = <printable ascii except \ [ ]> / obs-dtext
         obs-dtext = obs-NO-WS-CTL / quoted-pair
 
-    We allow anything except the excluded characters, but but if we find any
+    We allow anything except the excluded characters, but if we find any
     ASCII other than the RFC defined printable ASCII an NonPrintableDefect is
     added to the token's defects list.  Quoted pairs are converted to their
     unquoted values, so what is returned is a ptext token, in this case a

Lib/email/mime/text.py

@@ -26,7 +26,7 @@ def __init__(self, _text, _subtype='plain', _charset=None):
         Content-Transfer-Encoding header will also be set.
         """
 
-        # If no _charset was specified, check to see see if there are non-ascii
+        # If no _charset was specified, check to see if there are non-ascii
         # characters present. If not, use 'us-ascii', otherwise use utf-8.
         # XXX: This can be removed once #7304 is fixed.
         if _charset is None:

Lib/email/policy.py

@@ -23,7 +23,7 @@ class EmailPolicy(Policy):
     """+
     PROVISIONAL
 
-    The API extensions enabled by this this policy are currently provisional.
+    The API extensions enabled by this policy are currently provisional.
     Refer to the documentation for details.
 
     This policy adds new header parsing and folding algorithms.  Instead of

Lib/test/test_decimal.py

@@ -4492,7 +4492,7 @@ def test_py_exact_power(self):
             x = Decimal(2**578) ** Decimal("-0.5")
 
     def test_py_immutability_operations(self):
-        # Do operations and check that it didn't change change internal objects.
+        # Do operations and check that it didn't change internal objects.
         Decimal = P.Decimal
         DefaultContext = P.DefaultContext
         setcontext = P.setcontext

Lib/tkinter/__init__.py

@@ -3152,7 +3152,7 @@ def mark_previous(self, index):
     def peer_create(self, newPathName, cnf={}, **kw): # new in Tk 8.5
         """Creates a peer text widget with the given newPathName, and any
         optional standard configuration options. By default the peer will
-        have the same start and and end line as the parent widget, but
+        have the same start and end line as the parent widget, but
         these can be overriden with the standard configuration options."""
         self.tk.call(self._w, 'peer', 'create', newPathName,
             *self._options(cnf, kw))

Lib/unittest/mock.py

@@ -1417,7 +1417,7 @@ def patch(
     you pass in `create=True`, and the attribute doesn't exist, patch will
     create the attribute for you when the patched function is called, and
     delete it again afterwards. This is useful for writing tests against
-    attributes that your production code creates at runtime. It is off by by
+    attributes that your production code creates at runtime. It is off by
     default because it can be dangerous. With it switched on you can write
     passing tests against APIs that don't actually exist!
 

Modules/socketmodule.c

@@ -3609,7 +3609,7 @@ sock_sendmsg(PySocketSockObject *s, PyObject *args)
            the next header, it checks its (uninitialized) cmsg_len
            member to see if the "message" fits in the buffer, and
            returns NULL if it doesn't.  Zero-filling the buffer
-           ensures that that doesn't happen. */
+           ensures that this doesn't happen. */
         memset(controlbuf, 0, controllen);
 
         for (i = 0; i < ncmsgbufs; i++) {