Issue python#27895: Spelling fixes (Contributed by Ville Skyttä).

Doc/library/datetime.rst

@@ -1842,7 +1842,7 @@ Note that the :class:`datetime` instances that differ only by the value of the
 :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)).

Doc/library/email.contentmanager.rst

@@ -433,5 +433,5 @@ Currently the email package provides only one concrete content manager,
 
        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*.

Doc/library/idle.rst

@@ -531,7 +531,7 @@ Command line usage
    -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

Doc/library/smtpd.rst

@@ -44,7 +44,7 @@ SMTPServer Objects
    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 @@ SMTPChannel Objects
    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.

Doc/whatsnew/3.3.rst

@@ -1954,7 +1954,7 @@ ssl
   :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`.)
 

Include/abstract.h

@@ -487,7 +487,7 @@ xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx*/
     /* 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,

Include/bytesobject.h

@@ -131,7 +131,7 @@ PyAPI_FUNC(Py_ssize_t) _PyBytes_InsertThousandsGrouping(char *buffer,
 #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 {

Include/pymath.h

@@ -37,7 +37,7 @@ extern double pow(double, double);
 #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

Lib/asyncio/streams.py

@@ -590,7 +590,7 @@ def read(self, n=-1):
         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

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.

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.

Lib/distutils/tests/test_msvc9compiler.py

@@ -125,7 +125,7 @@ def test_reg_class(self):
         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'))

Lib/email/contentmanager.py

@@ -141,7 +141,7 @@ def _encode_base64(data, max_line_length):
 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 @@ def normal_body(lines): return b'\n'.join(lines) + b'\n'
         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 @@ def normal_body(lines): return b'\n'.join(lines) + b'\n'
         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

Lib/email/generator.py

@@ -97,7 +97,7 @@ def flatten(self, msg, unixfrom=False, linesep=None):
         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

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 @@ def encode(self, splitchars=';, \t', maxlinelen=None, linesep='\n'):
         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

Lib/email/message.py

@@ -1043,7 +1043,7 @@ def iter_attachments(self):
             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:

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

Lib/idlelib/README.txt

@@ -65,7 +65,7 @@ pathbrowser.py    # Create path browser window.
 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).

Lib/idlelib/help.html

@@ -497,7 +497,7 @@ <h3>25.5.3.1. Command line usage<a class="headerlink" href="#command-line-usage"
 -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

Lib/idlelib/idle_test/test_paragraph.py

@@ -159,7 +159,7 @@ def test_find_paragraph(self):
 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"

Lib/shutil.py

@@ -64,7 +64,7 @@ class ReadError(OSError):
 
 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):

Lib/statistics.py

@@ -454,7 +454,7 @@ def bignum_nroot(x, n):
         """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:

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

Lib/test/datetimetester.py

@@ -3958,7 +3958,7 @@ def test_bug_1028306(self):
         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

Lib/test/test_asyncio/test_locks.py

@@ -130,8 +130,8 @@ def test_acquire_cancel(self):
     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

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')

Lib/test/test_descr.py

@@ -876,7 +876,7 @@ def foo(self):
         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"

Lib/test/test_difflib.py

@@ -122,17 +122,17 @@ def test_added_tab_hint(self):
 """
 
 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
 """