diff --git a/Doc/distutils/apiref.rst b/Doc/distutils/apiref.rst
index 7d6a84e..0672253 100644
--- a/Doc/distutils/apiref.rst
+++ b/Doc/distutils/apiref.rst
@@ -1907,9 +1907,9 @@
    that is designed to run with both Python 2.x and 3.x, add::
 
      try:
-        from distutils.command.build_py import build_py_2to3 as build_py
+         from distutils.command.build_py import build_py_2to3 as build_py
      except ImportError:
-        from distutils.command.build_py import build_py
+         from distutils.command.build_py import build_py
 
    to your setup.py, and later::
 
diff --git a/Doc/faq/design.rst b/Doc/faq/design.rst
index c42cccb..1b6cd7e 100644
--- a/Doc/faq/design.rst
+++ b/Doc/faq/design.rst
@@ -158,7 +158,7 @@
        line = f.readline()
        if not line:
            break
-       ... # do something with line
+       ...  # do something with line
 
 The reason for not allowing assignment in Python expressions is a common,
 hard-to-find bug in those other languages, caused by this construct:
@@ -190,7 +190,7 @@
 
    line = f.readline()
    while line:
-       ... # do something with line...
+       ...  # do something with line...
        line = f.readline()
 
 The problem with this is that if you change your mind about exactly how you get
@@ -203,7 +203,7 @@
 <file object>` support the iterator protocol, so you can write simply::
 
    for line in f:
-       ... # do something with line...
+       ...  # do something with line...
 
 
 
@@ -577,8 +577,10 @@
    class ListWrapper:
        def __init__(self, the_list):
            self.the_list = the_list
+
        def __eq__(self, other):
            return self.the_list == other.the_list
+
        def __hash__(self):
            l = self.the_list
            result = 98767 - len(l)*555
@@ -619,7 +621,7 @@
 dictionary in sorted order::
 
    for key in sorted(mydict):
-       ... # do whatever with mydict[key]...
+       ...  # do whatever with mydict[key]...
 
 
 How do you specify and enforce an interface spec in Python?
@@ -675,11 +677,11 @@
    class label(Exception): pass  # declare a label
 
    try:
-        ...
-        if condition: raise label()  # goto label
-        ...
+       ...
+       if condition: raise label()  # goto label
+       ...
    except label:  # where to goto
-        pass
+       pass
    ...
 
 This doesn't allow you to jump into the middle of a loop, but that's usually
diff --git a/Doc/faq/library.rst b/Doc/faq/library.rst
index 2f82a0c..b5fdfa4 100644
--- a/Doc/faq/library.rst
+++ b/Doc/faq/library.rst
@@ -257,7 +257,8 @@
    import threading, time
 
    def thread_task(name, n):
-       for i in range(n): print(name, i)
+       for i in range(n):
+           print(name, i)
 
    for i in range(10):
        T = threading.Thread(target=thread_task, args=(str(i), i))
@@ -273,7 +274,8 @@
 
    def thread_task(name, n):
        time.sleep(0.001)  # <--------------------!
-       for i in range(n): print(name, i)
+       for i in range(n):
+           print(name, i)
 
    for i in range(10):
        T = threading.Thread(target=thread_task, args=(str(i), i))
@@ -502,8 +504,8 @@
    import struct
 
    with open(filename, "rb") as f:
-      s = f.read(8)
-      x, y, z = struct.unpack(">hhl", s)
+       s = f.read(8)
+       x, y, z = struct.unpack(">hhl", s)
 
 The '>' in the format string forces big-endian data; the letter 'h' reads one
 "short integer" (2 bytes), and 'l' reads one "long integer" (4 bytes) from the
@@ -681,10 +683,10 @@
 
    import urllib.request
 
-   ### build the query string
+   # build the query string
    qs = "First=Josephine&MI=Q&Last=Public"
 
-   ### connect and send the server a path
+   # connect and send the server a path
    req = urllib.request.urlopen('http://www.some-server.out-there'
                                 '/cgi-bin/some-cgi-script', data=qs)
    with req:
@@ -740,8 +742,9 @@
 ``/usr/sbin/sendmail``.  The sendmail manual page will help you out.  Here's
 some sample code::
 
-   SENDMAIL = "/usr/sbin/sendmail"  # sendmail location
    import os
+
+   SENDMAIL = "/usr/sbin/sendmail"  # sendmail location
    p = os.popen("%s -t -i" % SENDMAIL, "w")
    p.write("To: receiver@example.com\n")
    p.write("Subject: test\n")
diff --git a/Doc/faq/programming.rst b/Doc/faq/programming.rst
index 567614c..461a65b 100644
--- a/Doc/faq/programming.rst
+++ b/Doc/faq/programming.rst
@@ -207,7 +207,7 @@
 
    >>> squares = []
    >>> for x in range(5):
-   ...    squares.append(lambda: x**2)
+   ...     squares.append(lambda: x**2)
 
 This gives you a list that contains 5 lambdas that calculate ``x**2``.  You
 might expect that, when called, they would return, respectively, ``0``, ``1``,
@@ -234,7 +234,7 @@
 
    >>> squares = []
    >>> for x in range(5):
-   ...    squares.append(lambda n=x: n**2)
+   ...     squares.append(lambda n=x: n**2)
 
 Here, ``n=x`` creates a new variable ``n`` local to the lambda and computed
 when the lambda is defined so that it has the same value that ``x`` had at
@@ -539,7 +539,7 @@
           args['a'] = 'new-value'     # args is a mutable dictionary
           args['b'] = args['b'] + 1   # change it in-place
 
-      args = {'a':' old-value', 'b': 99}
+      args = {'a': 'old-value', 'b': 99}
       func3(args)
       print(args['a'], args['b'])
 
@@ -655,16 +655,15 @@
 ``def`` and ``class`` statements, but in that case the value is a
 callable. Consider the following code::
 
-   class A:
-       pass
-
-   B = A
-
-   a = B()
-   b = a
-   print(b)
+   >>> class A:
+   ...     pass
+   ...
+   >>> B = A
+   >>> a = B()
+   >>> b = a
+   >>> print(b)
    <__main__.A object at 0x16D07CC>
-   print(a)
+   >>> print(a)
    <__main__.A object at 0x16D07CC>
 
 Arguably the class has a name: even though it is bound to two names and invoked
@@ -1099,7 +1098,7 @@
 Use the :func:`reversed` built-in function, which is new in Python 2.4::
 
    for x in reversed(sequence):
-       ... # do something with x...
+       ...  # do something with x ...
 
 This won't touch your original sequence, but build a new copy with reversed
 order to iterate over.
@@ -1107,7 +1106,7 @@
 With Python 2.3, you can use an extended slice syntax::
 
    for x in sequence[::-1]:
-       ... # do something with x...
+       ...  # do something with x ...
 
 
 How do you remove duplicates from a list?
@@ -1405,7 +1404,7 @@
 definition::
 
    class C:
-       def meth (self, arg):
+       def meth(self, arg):
            return arg * 2 + self.attribute
 
 
@@ -1438,9 +1437,9 @@
 
    def search(obj):
        if isinstance(obj, Mailbox):
-           # ... code to search a mailbox
+           ...  # code to search a mailbox
        elif isinstance(obj, Document):
-           # ... code to search a document
+           ...  # code to search a document
        elif ...
 
 A better approach is to define a ``search()`` method on all the classes and just
@@ -1448,11 +1447,11 @@
 
    class Mailbox:
        def search(self):
-           # ... code to search a mailbox
+           ...  # code to search a mailbox
 
    class Document:
        def search(self):
-           # ... code to search a document
+           ...  # code to search a document
 
    obj.search()
 
@@ -1509,7 +1508,7 @@
 Use the built-in :func:`super` function::
 
    class Derived(Base):
-       def meth (self):
+       def meth(self):
            super(Derived, self).meth()
 
 For version prior to 3.0, you may be using classic classes: For a class
diff --git a/Doc/howto/descriptor.rst b/Doc/howto/descriptor.rst
index 530f34b..d370eb5 100644
--- a/Doc/howto/descriptor.rst
+++ b/Doc/howto/descriptor.rst
@@ -104,7 +104,7 @@
         "Emulate type_getattro() in Objects/typeobject.c"
         v = object.__getattribute__(self, key)
         if hasattr(v, '__get__'):
-           return v.__get__(None, self)
+            return v.__get__(None, self)
         return v
 
 The important points to remember are:
@@ -163,9 +163,9 @@
             self.val = val
 
     >>> class MyClass(object):
-        x = RevealAccess(10, 'var "x"')
-        y = 5
-
+    ...     x = RevealAccess(10, 'var "x"')
+    ...     y = 5
+    ...
     >>> m = MyClass()
     >>> m.x
     Retrieving var "x"
@@ -287,15 +287,15 @@
 Running the interpreter shows how the function descriptor works in practice::
 
     >>> class D(object):
-         def f(self, x):
-              return x
-
+    ...     def f(self, x):
+    ...         return x
+    ...
     >>> d = D()
-    >>> D.__dict__['f'] # Stored internally as a function
+    >>> D.__dict__['f']  # Stored internally as a function
     <function f at 0x00C45070>
-    >>> D.f             # Get from a class becomes an unbound method
+    >>> D.f              # Get from a class becomes an unbound method
     <unbound method D.f>
-    >>> d.f             # Get from an instance becomes a bound method
+    >>> d.f              # Get from an instance becomes a bound method
     <bound method D.f of <__main__.D object at 0x00B18C90>>
 
 The output suggests that bound and unbound methods are two different types.
@@ -358,10 +358,10 @@
 calls are unexciting::
 
     >>> class E(object):
-         def f(x):
-              print(x)
-         f = staticmethod(f)
-
+    ...     def f(x):
+    ...         print(x)
+    ...     f = staticmethod(f)
+    ...
     >>> print(E.f(3))
     3
     >>> print(E().f(3))
@@ -371,23 +371,23 @@
 :func:`staticmethod` would look like this::
 
     class StaticMethod(object):
-     "Emulate PyStaticMethod_Type() in Objects/funcobject.c"
+        "Emulate PyStaticMethod_Type() in Objects/funcobject.c"
 
-     def __init__(self, f):
-          self.f = f
+        def __init__(self, f):
+            self.f = f
 
-     def __get__(self, obj, objtype=None):
-          return self.f
+        def __get__(self, obj, objtype=None):
+            return self.f
 
 Unlike static methods, class methods prepend the class reference to the
 argument list before calling the function.  This format is the same
 for whether the caller is an object or a class::
 
     >>> class E(object):
-         def f(klass, x):
-              return klass.__name__, x
-         f = classmethod(f)
-
+    ...     def f(klass, x):
+    ...         return klass.__name__, x
+    ...     f = classmethod(f)
+    ...
     >>> print(E.f(3))
     ('E', 3)
     >>> print(E().f(3))
@@ -419,15 +419,15 @@
 :func:`classmethod` would look like this::
 
     class ClassMethod(object):
-         "Emulate PyClassMethod_Type() in Objects/funcobject.c"
+        "Emulate PyClassMethod_Type() in Objects/funcobject.c"
 
-         def __init__(self, f):
-              self.f = f
+        def __init__(self, f):
+            self.f = f
 
-         def __get__(self, obj, klass=None):
-              if klass is None:
-                   klass = type(obj)
-              def newfunc(*args):
-                   return self.f(klass, *args)
-              return newfunc
+        def __get__(self, obj, klass=None):
+            if klass is None:
+                klass = type(obj)
+            def newfunc(*args):
+                return self.f(klass, *args)
+            return newfunc
 
diff --git a/Doc/howto/functional.rst b/Doc/howto/functional.rst
index 80ff710..6e21f93 100644
--- a/Doc/howto/functional.rst
+++ b/Doc/howto/functional.rst
@@ -395,14 +395,14 @@
             continue   # Skip this element
         for expr2 in sequence2:
             if not (condition2):
-                continue    # Skip this element
+                continue   # Skip this element
             ...
             for exprN in sequenceN:
-                 if not (conditionN):
-                     continue   # Skip this element
+                if not (conditionN):
+                    continue   # Skip this element
 
-                 # Output the value of
-                 # the expression.
+                # Output the value of
+                # the expression.
 
 This means that when there are multiple ``for...in`` clauses but no ``if``
 clauses, the length of the resulting output will be equal to the product of the
diff --git a/Doc/howto/logging-cookbook.rst b/Doc/howto/logging-cookbook.rst
index e784acc..99b4cdc 100644
--- a/Doc/howto/logging-cookbook.rst
+++ b/Doc/howto/logging-cookbook.rst
@@ -63,6 +63,7 @@
         def __init__(self):
             self.logger = logging.getLogger('spam_application.auxiliary.Auxiliary')
             self.logger.info('creating an instance of Auxiliary')
+
         def do_something(self):
             self.logger.info('doing something')
             a = 1 + 1
@@ -360,7 +361,7 @@
 
 An example of using these two classes follows (imports omitted)::
 
-    que = queue.Queue(-1) # no limit on size
+    que = queue.Queue(-1)  # no limit on size
     queue_handler = QueueHandler(que)
     handler = logging.StreamHandler()
     listener = QueueListener(que, handler)
@@ -656,21 +657,21 @@
             return True
 
     if __name__ == '__main__':
-       levels = (logging.DEBUG, logging.INFO, logging.WARNING, logging.ERROR, logging.CRITICAL)
-       logging.basicConfig(level=logging.DEBUG,
-                           format='%(asctime)-15s %(name)-5s %(levelname)-8s IP: %(ip)-15s User: %(user)-8s %(message)s')
-       a1 = logging.getLogger('a.b.c')
-       a2 = logging.getLogger('d.e.f')
+        levels = (logging.DEBUG, logging.INFO, logging.WARNING, logging.ERROR, logging.CRITICAL)
+        logging.basicConfig(level=logging.DEBUG,
+                            format='%(asctime)-15s %(name)-5s %(levelname)-8s IP: %(ip)-15s User: %(user)-8s %(message)s')
+        a1 = logging.getLogger('a.b.c')
+        a2 = logging.getLogger('d.e.f')
 
-       f = ContextFilter()
-       a1.addFilter(f)
-       a2.addFilter(f)
-       a1.debug('A debug message')
-       a1.info('An info message with %s', 'some parameters')
-       for x in range(10):
-           lvl = choice(levels)
-           lvlname = logging.getLevelName(lvl)
-           a2.log(lvl, 'A message at %s level with %d %s', lvlname, 2, 'parameters')
+        f = ContextFilter()
+        a1.addFilter(f)
+        a2.addFilter(f)
+        a1.debug('A debug message')
+        a1.info('An info message with %s', 'some parameters')
+        for x in range(10):
+            lvl = choice(levels)
+            lvlname = logging.getLevelName(lvl)
+            a2.log(lvl, 'A message at %s level with %d %s', lvlname, 2, 'parameters')
 
 which, when run, produces something like::
 
@@ -764,10 +765,10 @@
         while True:
             try:
                 record = queue.get()
-                if record is None: # We send this as a sentinel to tell the listener to quit.
+                if record is None:  # We send this as a sentinel to tell the listener to quit.
                     break
                 logger = logging.getLogger(record.name)
-                logger.handle(record) # No level or filter logic applied - just do it!
+                logger.handle(record)  # No level or filter logic applied - just do it!
             except Exception:
                 import sys, traceback
                 print('Whoops! Problem:', file=sys.stderr)
@@ -790,10 +791,11 @@
     # Note that on Windows you can't rely on fork semantics, so each process
     # will run the logging configuration code when it starts.
     def worker_configurer(queue):
-        h = logging.handlers.QueueHandler(queue) # Just the one handler needed
+        h = logging.handlers.QueueHandler(queue)  # Just the one handler needed
         root = logging.getLogger()
         root.addHandler(h)
-        root.setLevel(logging.DEBUG) # send all messages, for demo; no other level or filter logic applied.
+        # send all messages, for demo; no other level or filter logic applied.
+        root.setLevel(logging.DEBUG)
 
     # This is the worker process top-level loop, which just logs ten events with
     # random intervening delays before terminating.
@@ -821,7 +823,7 @@
         workers = []
         for i in range(10):
             worker = multiprocessing.Process(target=worker_process,
-                                           args=(queue, worker_configurer))
+                                             args=(queue, worker_configurer))
             workers.append(worker)
             worker.start()
         for w in workers:
@@ -1245,12 +1247,12 @@
 of queues, for example a ZeroMQ 'publish' socket. In the example below,the
 socket is created separately and passed to the handler (as its 'queue')::
 
-    import zmq # using pyzmq, the Python binding for ZeroMQ
-    import json # for serializing records portably
+    import zmq   # using pyzmq, the Python binding for ZeroMQ
+    import json  # for serializing records portably
 
     ctx = zmq.Context()
-    sock = zmq.Socket(ctx, zmq.PUB) # or zmq.PUSH, or other suitable value
-    sock.bind('tcp://*:5556') # or wherever
+    sock = zmq.Socket(ctx, zmq.PUB)  # or zmq.PUSH, or other suitable value
+    sock.bind('tcp://*:5556')        # or wherever
 
     class ZeroMQSocketHandler(QueueHandler):
         def enqueue(self, record):
@@ -1288,7 +1290,7 @@
         def __init__(self, uri, *handlers, **kwargs):
             self.ctx = kwargs.get('ctx') or zmq.Context()
             socket = zmq.Socket(self.ctx, zmq.SUB)
-            socket.setsockopt(zmq.SUBSCRIBE, '') # subscribe to everything
+            socket.setsockopt(zmq.SUBSCRIBE, '')  # subscribe to everything
             socket.connect(uri)
 
         def dequeue(self):
@@ -2116,7 +2118,7 @@
             Format an exception so that it prints on a single line.
             """
             result = super(OneLineExceptionFormatter, self).formatException(exc_info)
-            return repr(result) # or format into one line however you want to
+            return repr(result)  # or format into one line however you want to
 
         def format(self, record):
             s = super(OneLineExceptionFormatter, self).format(record)
diff --git a/Doc/howto/logging.rst b/Doc/howto/logging.rst
index d66770f..51e8430 100644
--- a/Doc/howto/logging.rst
+++ b/Doc/howto/logging.rst
@@ -103,8 +103,8 @@
 A very simple example is::
 
    import logging
-   logging.warning('Watch out!') # will print a message to the console
-   logging.info('I told you so') # will not print anything
+   logging.warning('Watch out!')  # will print a message to the console
+   logging.info('I told you so')  # will not print anything
 
 If you type these lines into a script and run it, you'll see::
 
diff --git a/Doc/howto/regex.rst b/Doc/howto/regex.rst
index 909420b..de3f461 100644
--- a/Doc/howto/regex.rst
+++ b/Doc/howto/regex.rst
@@ -1115,19 +1115,19 @@
 Here's a simple example of using the :meth:`sub` method.  It replaces colour
 names with the word ``colour``::
 
-   >>> p = re.compile( '(blue|white|red)')
-   >>> p.sub( 'colour', 'blue socks and red shoes')
+   >>> p = re.compile('(blue|white|red)')
+   >>> p.sub('colour', 'blue socks and red shoes')
    'colour socks and colour shoes'
-   >>> p.sub( 'colour', 'blue socks and red shoes', count=1)
+   >>> p.sub('colour', 'blue socks and red shoes', count=1)
    'colour socks and red shoes'
 
 The :meth:`subn` method does the same work, but returns a 2-tuple containing the
 new string value and the number of replacements  that were performed::
 
-   >>> p = re.compile( '(blue|white|red)')
-   >>> p.subn( 'colour', 'blue socks and red shoes')
+   >>> p = re.compile('(blue|white|red)')
+   >>> p.subn('colour', 'blue socks and red shoes')
    ('colour socks and colour shoes', 2)
-   >>> p.subn( 'colour', 'no colours at all')
+   >>> p.subn('colour', 'no colours at all')
    ('no colours at all', 0)
 
 Empty matches are replaced only when they're not adjacent to a previous match.
diff --git a/Doc/howto/unicode.rst b/Doc/howto/unicode.rst
index 24051bf..50a09ba 100644
--- a/Doc/howto/unicode.rst
+++ b/Doc/howto/unicode.rst
@@ -687,7 +687,7 @@
    # make changes to the string 'data'
 
    with open(fname + '.new', 'w',
-              encoding="ascii", errors="surrogateescape") as f:
+             encoding="ascii", errors="surrogateescape") as f:
        f.write(data)
 
 The ``surrogateescape`` error handler will decode any non-ASCII bytes
diff --git a/Doc/howto/urllib2.rst b/Doc/howto/urllib2.rst
index b4e2157..24a4156 100644
--- a/Doc/howto/urllib2.rst
+++ b/Doc/howto/urllib2.rst
@@ -175,10 +175,10 @@
 
     url = 'http://www.someserver.com/cgi-bin/register.cgi'
     user_agent = 'Mozilla/5.0 (Windows NT 6.1; Win64; x64)'
-    values = {'name' : 'Michael Foord',
-              'location' : 'Northampton',
-              'language' : 'Python' }
-    headers = { 'User-Agent' : user_agent }
+    values = {'name': 'Michael Foord',
+              'location': 'Northampton',
+              'language': 'Python' }
+    headers = {'User-Agent': user_agent}
 
     data = urllib.parse.urlencode(values)
     data = data.encode('ascii')
@@ -215,7 +215,7 @@
     >>> req = urllib.request.Request('http://www.pretend_server.org')
     >>> try: urllib.request.urlopen(req)
     ... except urllib.error.URLError as e:
-    ...    print(e.reason)      #doctest: +SKIP
+    ...     print(e.reason)      #doctest: +SKIP
     ...
     (4, 'getaddrinfo failed')
 
@@ -372,7 +372,7 @@
 ::
 
     from urllib.request import Request, urlopen
-    from urllib.error import  URLError
+    from urllib.error import URLError
     req = Request(someurl)
     try:
         response = urlopen(req)
diff --git a/Doc/library/argparse.rst b/Doc/library/argparse.rst
index 0bb57c1..6a7f8ef 100644
--- a/Doc/library/argparse.rst
+++ b/Doc/library/argparse.rst
@@ -35,10 +35,10 @@
 
    parser = argparse.ArgumentParser(description='Process some integers.')
    parser.add_argument('integers', metavar='N', type=int, nargs='+',
-                      help='an integer for the accumulator')
+                       help='an integer for the accumulator')
    parser.add_argument('--sum', dest='accumulate', action='store_const',
-                      const=sum, default=max,
-                      help='sum the integers (default: find the max)')
+                       const=sum, default=max,
+                       help='sum the integers (default: find the max)')
 
    args = parser.parse_args()
    print(args.accumulate(args.integers))
@@ -488,7 +488,7 @@
 arguments they contain.  For example::
 
    >>> with open('args.txt', 'w') as fp:
-   ...    fp.write('-f\nbar')
+   ...     fp.write('-f\nbar')
    >>> parser = argparse.ArgumentParser(fromfile_prefix_chars='@')
    >>> parser.add_argument('-f')
    >>> parser.parse_args(['-f', 'foo', '@args.txt'])
@@ -1109,9 +1109,9 @@
 
    >>> parser = argparse.ArgumentParser(prog='frobble')
    >>> parser.add_argument('--foo', action='store_true',
-   ...         help='foo the bars before frobbling')
+   ...                     help='foo the bars before frobbling')
    >>> parser.add_argument('bar', nargs='+',
-   ...         help='one of the bars to be frobbled')
+   ...                     help='one of the bars to be frobbled')
    >>> parser.parse_args(['-h'])
    usage: frobble [-h] [--foo] bar [bar ...]
 
@@ -1129,7 +1129,7 @@
 
    >>> parser = argparse.ArgumentParser(prog='frobble')
    >>> parser.add_argument('bar', nargs='?', type=int, default=42,
-   ...         help='the bar to %(prog)s (default: %(default)s)')
+   ...                     help='the bar to %(prog)s (default: %(default)s)')
    >>> parser.print_help()
    usage: frobble [-h] [bar]
 
@@ -1468,10 +1468,10 @@
    >>> parser = argparse.ArgumentParser()
    >>> parser.add_argument(
    ...     'integers', metavar='int', type=int, choices=range(10),
-   ...  nargs='+', help='an integer in the range 0..9')
+   ...     nargs='+', help='an integer in the range 0..9')
    >>> parser.add_argument(
    ...     '--sum', dest='accumulate', action='store_const', const=sum,
-   ...   default=max, help='sum the integers (default: find the max)')
+   ...     default=max, help='sum the integers (default: find the max)')
    >>> parser.parse_args(['1', '2', '3', '4'])
    Namespace(accumulate=<built-in function max>, integers=[1, 2, 3, 4])
    >>> parser.parse_args(['1', '2', '3', '4', '--sum'])
diff --git a/Doc/library/asynchat.rst b/Doc/library/asynchat.rst
index 794da8c..56ad4f8 100644
--- a/Doc/library/asynchat.rst
+++ b/Doc/library/asynchat.rst
@@ -202,7 +202,7 @@
                    self.set_terminator(None)
                    self.handle_request()
            elif not self.handling:
-               self.set_terminator(None) # browsers sometimes over-send
+               self.set_terminator(None)  # browsers sometimes over-send
                self.cgi_data = parse(self.headers, b"".join(self.ibuffer))
                self.handling = True
                self.ibuffer = []
diff --git a/Doc/library/asyncio-sync.rst b/Doc/library/asyncio-sync.rst
index ad3b523..1d299ec6 100644
--- a/Doc/library/asyncio-sync.rst
+++ b/Doc/library/asyncio-sync.rst
@@ -71,14 +71,14 @@
        lock = Lock()
        ...
        with (yield from lock):
-            ...
+           ...
 
    Lock objects can be tested for locking state::
 
        if not lock.locked():
-          yield from lock
+           yield from lock
        else:
-          # lock is acquired
+           # lock is acquired
            ...
 
    .. method:: locked()
diff --git a/Doc/library/asyncore.rst b/Doc/library/asyncore.rst
index 917d044..02ae72a 100644
--- a/Doc/library/asyncore.rst
+++ b/Doc/library/asyncore.rst
@@ -315,8 +315,8 @@
            self.buffer = self.buffer[sent:]
 
 
-    client = HTTPClient('www.python.org', '/')
-    asyncore.loop()
+   client = HTTPClient('www.python.org', '/')
+   asyncore.loop()
 
 .. _asyncore-example-2:
 
diff --git a/Doc/library/audioop.rst b/Doc/library/audioop.rst
index ce127aa..e850c3f 100644
--- a/Doc/library/audioop.rst
+++ b/Doc/library/audioop.rst
@@ -276,6 +276,6 @@
        #              out_test)
        prefill = '\0'*(pos+ipos)*2
        postfill = '\0'*(len(inputdata)-len(prefill)-len(outputdata))
-       outputdata = prefill + audioop.mul(outputdata,2,-factor) + postfill
+       outputdata = prefill + audioop.mul(outputdata, 2, -factor) + postfill
        return audioop.add(inputdata, outputdata, 2)
 
diff --git a/Doc/library/collections.abc.rst b/Doc/library/collections.abc.rst
index 67118d5..e76ca78 100644
--- a/Doc/library/collections.abc.rst
+++ b/Doc/library/collections.abc.rst
@@ -218,19 +218,22 @@
 :meth:`isdisjoint`::
 
     class ListBasedSet(collections.abc.Set):
-         ''' Alternate set implementation favoring space over speed
-             and not requiring the set elements to be hashable. '''
-         def __init__(self, iterable):
-             self.elements = lst = []
-             for value in iterable:
-                 if value not in lst:
-                     lst.append(value)
-         def __iter__(self):
-             return iter(self.elements)
-         def __contains__(self, value):
-             return value in self.elements
-         def __len__(self):
-             return len(self.elements)
+        ''' Alternate set implementation favoring space over speed
+            and not requiring the set elements to be hashable. '''
+        def __init__(self, iterable):
+            self.elements = lst = []
+            for value in iterable:
+                if value not in lst:
+                    lst.append(value)
+
+        def __iter__(self):
+            return iter(self.elements)
+
+        def __contains__(self, value):
+            return value in self.elements
+
+        def __len__(self):
+            return len(self.elements)
 
     s1 = ListBasedSet('abcdef')
     s2 = ListBasedSet('defghi')
diff --git a/Doc/library/collections.rst b/Doc/library/collections.rst
index a0820a7..8b97b65 100644
--- a/Doc/library/collections.rst
+++ b/Doc/library/collections.rst
@@ -1029,7 +1029,7 @@
 in conjunction with sorting to make a sorted dictionary::
 
     >>> # regular unsorted dictionary
-    >>> d = {'banana': 3, 'apple':4, 'pear': 1, 'orange': 2}
+    >>> d = {'banana': 3, 'apple': 4, 'pear': 1, 'orange': 2}
 
     >>> # dictionary sorted by key
     >>> OrderedDict(sorted(d.items(), key=lambda t: t[0]))
diff --git a/Doc/library/concurrent.futures.rst b/Doc/library/concurrent.futures.rst
index 5fc8b90..15858be 100644
--- a/Doc/library/concurrent.futures.rst
+++ b/Doc/library/concurrent.futures.rst
@@ -99,12 +99,12 @@
    import time
    def wait_on_b():
        time.sleep(5)
-       print(b.result()) # b will never complete because it is waiting on a.
+       print(b.result())  # b will never complete because it is waiting on a.
        return 5
 
    def wait_on_a():
        time.sleep(5)
-       print(a.result()) # a will never complete because it is waiting on b.
+       print(a.result())  # a will never complete because it is waiting on b.
        return 6
 
 
diff --git a/Doc/library/configparser.rst b/Doc/library/configparser.rst
index c9187a3..c5dc8d7 100644
--- a/Doc/library/configparser.rst
+++ b/Doc/library/configparser.rst
@@ -833,13 +833,13 @@
 
    # Set the optional *raw* argument of get() to True if you wish to disable
    # interpolation in a single get operation.
-   print(cfg.get('Section1', 'foo', raw=False)) # -> "Python is fun!"
-   print(cfg.get('Section1', 'foo', raw=True))  # -> "%(bar)s is %(baz)s!"
+   print(cfg.get('Section1', 'foo', raw=False))  # -> "Python is fun!"
+   print(cfg.get('Section1', 'foo', raw=True))   # -> "%(bar)s is %(baz)s!"
 
    # The optional *vars* argument is a dict with members that will take
    # precedence in interpolation.
    print(cfg.get('Section1', 'foo', vars={'bar': 'Documentation',
-                                             'baz': 'evil'}))
+                                          'baz': 'evil'}))
 
    # The optional *fallback* argument can be used to provide a fallback value
    print(cfg.get('Section1', 'foo'))
@@ -866,10 +866,10 @@
    config = configparser.ConfigParser({'bar': 'Life', 'baz': 'hard'})
    config.read('example.cfg')
 
-   print(config.get('Section1', 'foo')) # -> "Python is fun!"
+   print(config.get('Section1', 'foo'))     # -> "Python is fun!"
    config.remove_option('Section1', 'bar')
    config.remove_option('Section1', 'baz')
-   print(config.get('Section1', 'foo')) # -> "Life is hard!"
+   print(config.get('Section1', 'foo'))     # -> "Life is hard!"
 
 
 .. _configparser-objects:
diff --git a/Doc/library/contextlib.rst b/Doc/library/contextlib.rst
index c112241..cf85fcd 100644
--- a/Doc/library/contextlib.rst
+++ b/Doc/library/contextlib.rst
@@ -644,7 +644,7 @@
     Before
     After
     >>> with cm:
-    ...    pass
+    ...     pass
     ...
     Traceback (most recent call last):
         ...
diff --git a/Doc/library/crypt.rst b/Doc/library/crypt.rst
index b4c90cd..0661426 100644
--- a/Doc/library/crypt.rst
+++ b/Doc/library/crypt.rst
@@ -149,4 +149,4 @@
 
    hashed = crypt.crypt(plaintext)
    if not compare_hash(hashed, crypt.crypt(plaintext, hashed)):
-      raise ValueError("hashed version doesn't validate against original")
+       raise ValueError("hashed version doesn't validate against original")
diff --git a/Doc/library/ctypes.rst b/Doc/library/ctypes.rst
index e2a18c1..4da276c 100644
--- a/Doc/library/ctypes.rst
+++ b/Doc/library/ctypes.rst
@@ -52,11 +52,11 @@
 convention::
 
    >>> from ctypes import *
-   >>> print(windll.kernel32) # doctest: +WINDOWS
+   >>> print(windll.kernel32)  # doctest: +WINDOWS
    <WinDLL 'kernel32', handle ... at ...>
-   >>> print(cdll.msvcrt) # doctest: +WINDOWS
+   >>> print(cdll.msvcrt)      # doctest: +WINDOWS
    <CDLL 'msvcrt', handle ... at ...>
-   >>> libc = cdll.msvcrt # doctest: +WINDOWS
+   >>> libc = cdll.msvcrt      # doctest: +WINDOWS
    >>>
 
 Windows appends the usual ``.dll`` file suffix automatically.
@@ -72,10 +72,10 @@
 :meth:`LoadLibrary` method of the dll loaders should be used, or you should load
 the library by creating an instance of CDLL by calling the constructor::
 
-   >>> cdll.LoadLibrary("libc.so.6") # doctest: +LINUX
+   >>> cdll.LoadLibrary("libc.so.6")  # doctest: +LINUX
    <CDLL 'libc.so.6', handle ... at ...>
-   >>> libc = CDLL("libc.so.6")     # doctest: +LINUX
-   >>> libc                         # doctest: +LINUX
+   >>> libc = CDLL("libc.so.6")       # doctest: +LINUX
+   >>> libc                           # doctest: +LINUX
    <CDLL 'libc.so.6', handle ... at ...>
    >>>
 
@@ -92,9 +92,9 @@
    >>> from ctypes import *
    >>> libc.printf
    <_FuncPtr object at 0x...>
-   >>> print(windll.kernel32.GetModuleHandleA) # doctest: +WINDOWS
+   >>> print(windll.kernel32.GetModuleHandleA)  # doctest: +WINDOWS
    <_FuncPtr object at 0x...>
-   >>> print(windll.kernel32.MyOwnFunction) # doctest: +WINDOWS
+   >>> print(windll.kernel32.MyOwnFunction)     # doctest: +WINDOWS
    Traceback (most recent call last):
      File "<stdin>", line 1, in ?
      File "ctypes.py", line 239, in __getattr__
@@ -123,16 +123,16 @@
 identifiers, like ``"??2@YAPAXI@Z"``. In this case you have to use
 :func:`getattr` to retrieve the function::
 
-   >>> getattr(cdll.msvcrt, "??2@YAPAXI@Z") # doctest: +WINDOWS
+   >>> getattr(cdll.msvcrt, "??2@YAPAXI@Z")  # doctest: +WINDOWS
    <_FuncPtr object at 0x...>
    >>>
 
 On Windows, some dlls export functions not by name but by ordinal. These
 functions can be accessed by indexing the dll object with the ordinal number::
 
-   >>> cdll.kernel32[1] # doctest: +WINDOWS
+   >>> cdll.kernel32[1]  # doctest: +WINDOWS
    <_FuncPtr object at 0x...>
-   >>> cdll.kernel32[0] # doctest: +WINDOWS
+   >>> cdll.kernel32[0]  # doctest: +WINDOWS
    Traceback (most recent call last):
      File "<stdin>", line 1, in ?
      File "ctypes.py", line 310, in __getitem__
@@ -154,9 +154,9 @@
 This example calls both functions with a NULL pointer (``None`` should be used
 as the NULL pointer)::
 
-   >>> print(libc.time(None)) # doctest: +SKIP
+   >>> print(libc.time(None))  # doctest: +SKIP
    1150640792
-   >>> print(hex(windll.kernel32.GetModuleHandleA(None))) # doctest: +WINDOWS
+   >>> print(hex(windll.kernel32.GetModuleHandleA(None)))  # doctest: +WINDOWS
    0x1d000000
    >>>
 
@@ -165,11 +165,11 @@
 Windows.  It does this by examining the stack after the function returns, so
 although an error is raised the function *has* been called::
 
-   >>> windll.kernel32.GetModuleHandleA() # doctest: +WINDOWS
+   >>> windll.kernel32.GetModuleHandleA()      # doctest: +WINDOWS
    Traceback (most recent call last):
      File "<stdin>", line 1, in ?
    ValueError: Procedure probably called with not enough arguments (4 bytes missing)
-   >>> windll.kernel32.GetModuleHandleA(0, 0) # doctest: +WINDOWS
+   >>> windll.kernel32.GetModuleHandleA(0, 0)  # doctest: +WINDOWS
    Traceback (most recent call last):
      File "<stdin>", line 1, in ?
    ValueError: Procedure probably called with too many arguments (4 bytes in excess)
@@ -178,13 +178,13 @@
 The same exception is raised when you call an ``stdcall`` function with the
 ``cdecl`` calling convention, or vice versa::
 
-   >>> cdll.kernel32.GetModuleHandleA(None) # doctest: +WINDOWS
+   >>> cdll.kernel32.GetModuleHandleA(None)  # doctest: +WINDOWS
    Traceback (most recent call last):
      File "<stdin>", line 1, in ?
    ValueError: Procedure probably called with not enough arguments (4 bytes missing)
    >>>
 
-   >>> windll.msvcrt.printf(b"spam") # doctest: +WINDOWS
+   >>> windll.msvcrt.printf(b"spam")  # doctest: +WINDOWS
    Traceback (most recent call last):
      File "<stdin>", line 1, in ?
    ValueError: Procedure probably called with too many arguments (4 bytes in excess)
@@ -197,7 +197,7 @@
 crashes from general protection faults when functions are called with invalid
 argument values::
 
-   >>> windll.kernel32.GetModuleHandleA(32) # doctest: +WINDOWS
+   >>> windll.kernel32.GetModuleHandleA(32)  # doctest: +WINDOWS
    Traceback (most recent call last):
      File "<stdin>", line 1, in ?
    OSError: exception: access violation reading 0x00000020
@@ -462,9 +462,9 @@
 a string pointer and a char, and returns a pointer to a string::
 
    >>> strchr = libc.strchr
-   >>> strchr(b"abcdef", ord("d")) # doctest: +SKIP
+   >>> strchr(b"abcdef", ord("d"))  # doctest: +SKIP
    8059983
-   >>> strchr.restype = c_char_p   # c_char_p is a pointer to a string
+   >>> strchr.restype = c_char_p    # c_char_p is a pointer to a string
    >>> strchr(b"abcdef", ord("d"))
    b'def'
    >>> print(strchr(b"abcdef", ord("x")))
@@ -495,17 +495,17 @@
 result of this call will be used as the result of your function call. This is
 useful to check for error return values and automatically raise an exception::
 
-   >>> GetModuleHandle = windll.kernel32.GetModuleHandleA # doctest: +WINDOWS
+   >>> GetModuleHandle = windll.kernel32.GetModuleHandleA  # doctest: +WINDOWS
    >>> def ValidHandle(value):
    ...     if value == 0:
    ...         raise WinError()
    ...     return value
    ...
    >>>
-   >>> GetModuleHandle.restype = ValidHandle # doctest: +WINDOWS
-   >>> GetModuleHandle(None) # doctest: +WINDOWS
+   >>> GetModuleHandle.restype = ValidHandle  # doctest: +WINDOWS
+   >>> GetModuleHandle(None)  # doctest: +WINDOWS
    486539264
-   >>> GetModuleHandle("something silly") # doctest: +WINDOWS
+   >>> GetModuleHandle("something silly")  # doctest: +WINDOWS
    Traceback (most recent call last):
      File "<stdin>", line 1, in ?
      File "<stdin>", line 3, in ValidHandle
@@ -676,12 +676,12 @@
 
    >>> from ctypes import *
    >>> class POINT(Structure):
-   ...    _fields_ = ("x", c_int), ("y", c_int)
+   ...     _fields_ = ("x", c_int), ("y", c_int)
    ...
    >>> class MyStruct(Structure):
-   ...    _fields_ = [("a", c_int),
-   ...                ("b", c_float),
-   ...                ("point_array", POINT * 4)]
+   ...     _fields_ = [("a", c_int),
+   ...                 ("b", c_float),
+   ...                 ("point_array", POINT * 4)]
    >>>
    >>> print(len(MyStruct().point_array))
    4
@@ -998,7 +998,7 @@
 
 The result::
 
-   >>> qsort(ia, len(ia), sizeof(c_int), cmp_func) # doctest: +LINUX
+   >>> qsort(ia, len(ia), sizeof(c_int), cmp_func)  # doctest: +LINUX
    py_cmp_func 5 1
    py_cmp_func 33 99
    py_cmp_func 7 33
@@ -1100,9 +1100,9 @@
 hit the NULL entry::
 
    >>> for item in table:
-   ...    print(item.name, item.size)
-   ...    if item.name is None:
-   ...        break
+   ...     print(item.name, item.size)
+   ...     if item.name is None:
+   ...         break
    ...
    __hello__ 104
    __phello__ -104
diff --git a/Doc/library/email.headerregistry.rst b/Doc/library/email.headerregistry.rst
index db3aade..4af083f 100644
--- a/Doc/library/email.headerregistry.rst
+++ b/Doc/library/email.headerregistry.rst
@@ -171,7 +171,7 @@
    :class:`~datetime.datetime` instance.  This means, for example, that
    the following code is valid and does what one would expect::
 
-       msg['Date']  = datetime(2011, 7, 15, 21)
+       msg['Date'] = datetime(2011, 7, 15, 21)
 
    Because this is a naive ``datetime`` it will be interpreted as a UTC
    timestamp, and the resulting value will have a timezone of ``-0000``.  Much
diff --git a/Doc/library/getopt.rst b/Doc/library/getopt.rst
index f9a1e53..832d458 100644
--- a/Doc/library/getopt.rst
+++ b/Doc/library/getopt.rst
@@ -124,7 +124,7 @@
            opts, args = getopt.getopt(sys.argv[1:], "ho:v", ["help", "output="])
        except getopt.GetoptError as err:
            # print help information and exit:
-           print(err) # will print something like "option -a not recognized"
+           print(err)  # will print something like "option -a not recognized"
            usage()
            sys.exit(2)
        output = None
diff --git a/Doc/library/html.parser.rst b/Doc/library/html.parser.rst
index a084d3d..2f93c0b 100644
--- a/Doc/library/html.parser.rst
+++ b/Doc/library/html.parser.rst
@@ -51,8 +51,10 @@
    class MyHTMLParser(HTMLParser):
        def handle_starttag(self, tag, attrs):
            print("Encountered a start tag:", tag)
+
        def handle_endtag(self, tag):
            print("Encountered an end tag :", tag)
+
        def handle_data(self, data):
            print("Encountered some data  :", data)
 
@@ -237,21 +239,27 @@
            print("Start tag:", tag)
            for attr in attrs:
                print("     attr:", attr)
+
        def handle_endtag(self, tag):
            print("End tag  :", tag)
+
        def handle_data(self, data):
            print("Data     :", data)
+
        def handle_comment(self, data):
            print("Comment  :", data)
+
        def handle_entityref(self, name):
            c = chr(name2codepoint[name])
            print("Named ent:", c)
+
        def handle_charref(self, name):
            if name.startswith('x'):
                c = chr(int(name[1:], 16))
            else:
                c = chr(int(name))
            print("Num ent  :", c)
+
        def handle_decl(self, data):
            print("Decl     :", data)
 
@@ -283,7 +291,7 @@
         attr: ('type', 'text/css')
    Data     : #python { color: green }
    End tag  : style
-   >>>
+
    >>> parser.feed('<script type="text/javascript">'
    ...             'alert("<strong>hello!</strong>");</script>')
    Start tag: script
diff --git a/Doc/library/http.client.rst b/Doc/library/http.client.rst
index 649abd1..bd91845 100644
--- a/Doc/library/http.client.rst
+++ b/Doc/library/http.client.rst
@@ -441,7 +441,7 @@
    >>> conn.request("GET", "/")
    >>> r1 = conn.getresponse()
    >>> while not r1.closed:
-   ...     print(r1.read(200)) # 200 bytes
+   ...     print(r1.read(200))  # 200 bytes
    b'<!doctype html>\n<!--[if"...
    ...
    >>> # Example of an invalid request
diff --git a/Doc/library/inspect.rst b/Doc/library/inspect.rst
index 8d25b1e..59fd937 100644
--- a/Doc/library/inspect.rst
+++ b/Doc/library/inspect.rst
@@ -787,7 +787,7 @@
    functions::
 
       def test(a, *, b):
-         ...
+          ...
 
       sig = signature(test)
       ba = sig.bind(10, b=20)
diff --git a/Doc/library/ipaddress.rst b/Doc/library/ipaddress.rst
index e2fc742..6a7b979 100644
--- a/Doc/library/ipaddress.rst
+++ b/Doc/library/ipaddress.rst
@@ -653,7 +653,7 @@
 example::
 
    >>> for addr in IPv4Network('192.0.2.0/28'):
-   ...   addr
+   ...     addr
    ...
    IPv4Address('192.0.2.0')
    IPv4Address('192.0.2.1')
diff --git a/Doc/library/locale.rst b/Doc/library/locale.rst
index 61b79fa..dd17d4f 100644
--- a/Doc/library/locale.rst
+++ b/Doc/library/locale.rst
@@ -467,13 +467,13 @@
 Example::
 
    >>> import locale
-   >>> loc = locale.getlocale() # get current locale
+   >>> loc = locale.getlocale()  # get current locale
    # use German locale; name might vary with platform
    >>> locale.setlocale(locale.LC_ALL, 'de_DE')
-   >>> locale.strcoll('f\xe4n', 'foo') # compare a string containing an umlaut
-   >>> locale.setlocale(locale.LC_ALL, '') # use user's preferred locale
-   >>> locale.setlocale(locale.LC_ALL, 'C') # use default (C) locale
-   >>> locale.setlocale(locale.LC_ALL, loc) # restore saved locale
+   >>> locale.strcoll('f\xe4n', 'foo')  # compare a string containing an umlaut
+   >>> locale.setlocale(locale.LC_ALL, '')   # use user's preferred locale
+   >>> locale.setlocale(locale.LC_ALL, 'C')  # use default (C) locale
+   >>> locale.setlocale(locale.LC_ALL, loc)  # restore saved locale
 
 
 Background, details, hints, tips and caveats
diff --git a/Doc/library/mailcap.rst b/Doc/library/mailcap.rst
index 8115e42..896afd1 100644
--- a/Doc/library/mailcap.rst
+++ b/Doc/library/mailcap.rst
@@ -70,7 +70,7 @@
 An example usage::
 
    >>> import mailcap
-   >>> d=mailcap.getcaps()
+   >>> d = mailcap.getcaps()
    >>> mailcap.findmatch(d, 'video/mpeg', filename='tmp1223')
    ('xmpeg tmp1223', {'view': 'xmpeg %s'})
 
diff --git a/Doc/library/mmap.rst b/Doc/library/mmap.rst
index 9652894..ce807e4 100644
--- a/Doc/library/mmap.rst
+++ b/Doc/library/mmap.rst
@@ -144,7 +144,7 @@
 
       pid = os.fork()
 
-      if pid == 0: # In a child process
+      if pid == 0:  # In a child process
           mm.seek(0)
           print(mm.readline())
 
diff --git a/Doc/library/multiprocessing.rst b/Doc/library/multiprocessing.rst
index 684a59f..42049c4 100644
--- a/Doc/library/multiprocessing.rst
+++ b/Doc/library/multiprocessing.rst
@@ -2663,8 +2663,8 @@
             ... do something using "lock" ...
 
         if __name__ == '__main__':
-           lock = Lock()
-           for i in range(10):
+            lock = Lock()
+            for i in range(10):
                 Process(target=f).start()
 
     should be rewritten as ::
@@ -2675,8 +2675,8 @@
             ... do something using "l" ...
 
         if __name__ == '__main__':
-           lock = Lock()
-           for i in range(10):
+            lock = Lock()
+            for i in range(10):
                 Process(target=f, args=(lock,)).start()
 
 Beware of replacing :data:`sys.stdin` with a "file like object"
diff --git a/Doc/library/optparse.rst b/Doc/library/optparse.rst
index 160c29d..c5db3ea 100644
--- a/Doc/library/optparse.rst
+++ b/Doc/library/optparse.rst
@@ -25,7 +25,7 @@
 Here's an example of using :mod:`optparse` in a simple script::
 
    from optparse import OptionParser
-   [...]
+   ...
    parser = OptionParser()
    parser.add_option("-f", "--file", dest="filename",
                      help="write report to FILE", metavar="FILE")
@@ -252,7 +252,7 @@
 program, create an OptionParser instance::
 
    from optparse import OptionParser
-   [...]
+   ...
    parser = OptionParser()
 
 Then you can start defining options.  The basic syntax is::
@@ -718,7 +718,7 @@
 condition::
 
    (options, args) = parser.parse_args()
-   [...]
+   ...
    if options.a and options.b:
        parser.error("options -a and -b are mutually exclusive")
 
@@ -758,7 +758,7 @@
 Here's what :mod:`optparse`\ -based scripts usually look like::
 
    from optparse import OptionParser
-   [...]
+   ...
    def main():
        usage = "usage: %prog [options] arg"
        parser = OptionParser(usage)
@@ -768,13 +768,13 @@
                          action="store_true", dest="verbose")
        parser.add_option("-q", "--quiet",
                          action="store_false", dest="verbose")
-       [...]
+       ...
        (options, args) = parser.parse_args()
        if len(args) != 1:
            parser.error("incorrect number of arguments")
        if options.verbose:
            print("reading %s..." % options.filename)
-       [...]
+       ...
 
    if __name__ == "__main__":
        main()
@@ -1409,7 +1409,7 @@
 strings::
 
    parser.add_option("-n", "--dry-run", ...)
-   [...]
+   ...
    parser.add_option("-n", "--noisy", ...)
 
 (This is particularly true if you've defined your own OptionParser subclass with
@@ -1450,7 +1450,7 @@
 
    Options:
      --dry-run     do no harm
-     [...]
+     ...
      -n, --noisy   be noisy
 
 It's possible to whittle away the option strings for a previously-added option
@@ -1465,7 +1465,7 @@
 accessible, so :mod:`optparse` removes it, leaving this help text::
 
    Options:
-     [...]
+     ...
      -n, --noisy   be noisy
      --dry-run     new dry-run option
 
@@ -1701,7 +1701,7 @@
        if parser.values.b:
            raise OptionValueError("can't use -a after -b")
        parser.values.a = 1
-   [...]
+   ...
    parser.add_option("-a", action="callback", callback=check_order)
    parser.add_option("-b", action="store_true", dest="b")
 
@@ -1719,7 +1719,7 @@
        if parser.values.b:
            raise OptionValueError("can't use %s after -b" % opt_str)
        setattr(parser.values, option.dest, 1)
-   [...]
+   ...
    parser.add_option("-a", action="callback", callback=check_order, dest='a')
    parser.add_option("-b", action="store_true", dest="b")
    parser.add_option("-c", action="callback", callback=check_order, dest='c')
@@ -1739,7 +1739,7 @@
            raise OptionValueError("%s option invalid when moon is full"
                                   % opt_str)
        setattr(parser.values, option.dest, 1)
-   [...]
+   ...
    parser.add_option("--foo",
                      action="callback", callback=check_moon, dest="foo")
 
@@ -1762,7 +1762,7 @@
 
    def store_value(option, opt_str, value, parser):
        setattr(parser.values, option.dest, value)
-   [...]
+   ...
    parser.add_option("--foo",
                      action="callback", callback=store_value,
                      type="int", nargs=3, dest="foo")
@@ -1824,9 +1824,9 @@
         del parser.rargs[:len(value)]
         setattr(parser.values, option.dest, value)
 
-   [...]
-   parser.add_option("-c", "--callback", dest="vararg_attr",
-                     action="callback", callback=vararg_callback)
+    ...
+    parser.add_option("-c", "--callback", dest="vararg_attr",
+                      action="callback", callback=vararg_callback)
 
 
 .. _optparse-extending-optparse:
diff --git a/Doc/library/re.rst b/Doc/library/re.rst
index fdd5083..82beba1 100644
--- a/Doc/library/re.rst
+++ b/Doc/library/re.rst
@@ -1234,15 +1234,15 @@
 
 For example::
 
-   >>> re.match("c", "abcdef")  # No match
-   >>> re.search("c", "abcdef") # Match
+   >>> re.match("c", "abcdef")    # No match
+   >>> re.search("c", "abcdef")   # Match
    <_sre.SRE_Match object; span=(2, 3), match='c'>
 
 Regular expressions beginning with ``'^'`` can be used with :func:`search` to
 restrict the match at the beginning of the string::
 
-   >>> re.match("c", "abcdef")  # No match
-   >>> re.search("^c", "abcdef") # No match
+   >>> re.match("c", "abcdef")    # No match
+   >>> re.search("^c", "abcdef")  # No match
    >>> re.search("^a", "abcdef")  # Match
    <_sre.SRE_Match object; span=(0, 1), match='a'>
 
@@ -1323,9 +1323,9 @@
 in each word of a sentence except for the first and last characters::
 
    >>> def repl(m):
-   ...   inner_word = list(m.group(2))
-   ...   random.shuffle(inner_word)
-   ...   return m.group(1) + "".join(inner_word) + m.group(3)
+   ...     inner_word = list(m.group(2))
+   ...     random.shuffle(inner_word)
+   ...     return m.group(1) + "".join(inner_word) + m.group(3)
    >>> text = "Professor Abdolmalek, please report your absences promptly."
    >>> re.sub(r"(\w)(\w+)(\w)", repl, text)
    'Poefsrosr Aealmlobdk, pslaee reorpt your abnseces plmrptoy.'
@@ -1405,14 +1405,14 @@
     def tokenize(code):
         keywords = {'IF', 'THEN', 'ENDIF', 'FOR', 'NEXT', 'GOSUB', 'RETURN'}
         token_specification = [
-            ('NUMBER',  r'\d+(\.\d*)?'), # Integer or decimal number
-            ('ASSIGN',  r':='),          # Assignment operator
-            ('END',     r';'),           # Statement terminator
-            ('ID',      r'[A-Za-z]+'),   # Identifiers
-            ('OP',      r'[+\-*/]'),     # Arithmetic operators
-            ('NEWLINE', r'\n'),          # Line endings
-            ('SKIP',    r'[ \t]+'),      # Skip over spaces and tabs
-            ('MISMATCH',r'.'),           # Any other character
+            ('NUMBER',  r'\d+(\.\d*)?'),  # Integer or decimal number
+            ('ASSIGN',  r':='),           # Assignment operator
+            ('END',     r';'),            # Statement terminator
+            ('ID',      r'[A-Za-z]+'),    # Identifiers
+            ('OP',      r'[+\-*/]'),      # Arithmetic operators
+            ('NEWLINE', r'\n'),           # Line endings
+            ('SKIP',    r'[ \t]+'),       # Skip over spaces and tabs
+            ('MISMATCH',r'.'),            # Any other character
         ]
         tok_regex = '|'.join('(?P<%s>%s)' % pair for pair in token_specification)
         line_num = 1
diff --git a/Doc/library/shelve.rst b/Doc/library/shelve.rst
index 204967a..f89368b 100644
--- a/Doc/library/shelve.rst
+++ b/Doc/library/shelve.rst
@@ -165,32 +165,33 @@
 
    import shelve
 
-   d = shelve.open(filename) # open -- file may get suffix added by low-level
-                             # library
+   d = shelve.open(filename)  # open -- file may get suffix added by low-level
+                              # library
 
-   d[key] = data   # store data at key (overwrites old data if
-                   # using an existing key)
-   data = d[key]   # retrieve a COPY of data at key (raise KeyError if no
-                   # such key)
-   del d[key]      # delete data stored at key (raises KeyError
-                   # if no such key)
-   flag = key in d        # true if the key exists
-   klist = list(d.keys()) # a list of all existing keys (slow!)
+   d[key] = data              # store data at key (overwrites old data if
+                              # using an existing key)
+   data = d[key]              # retrieve a COPY of data at key (raise KeyError
+                              # if no such key)
+   del d[key]                 # delete data stored at key (raises KeyError
+                              # if no such key)
+
+   flag = key in d            # true if the key exists
+   klist = list(d.keys())     # a list of all existing keys (slow!)
 
    # as d was opened WITHOUT writeback=True, beware:
-   d['xx'] = [0, 1, 2]    # this works as expected, but...
-   d['xx'].append(3)      # *this doesn't!* -- d['xx'] is STILL [0, 1, 2]!
+   d['xx'] = [0, 1, 2]        # this works as expected, but...
+   d['xx'].append(3)          # *this doesn't!* -- d['xx'] is STILL [0, 1, 2]!
 
    # having opened d without writeback=True, you need to code carefully:
-   temp = d['xx']      # extracts the copy
-   temp.append(5)      # mutates the copy
-   d['xx'] = temp      # stores the copy right back, to persist it
+   temp = d['xx']             # extracts the copy
+   temp.append(5)             # mutates the copy
+   d['xx'] = temp             # stores the copy right back, to persist it
 
    # or, d=shelve.open(filename,writeback=True) would let you just code
    # d['xx'].append(5) and have it work as expected, BUT it would also
    # consume more memory and make the d.close() operation slower.
 
-   d.close()       # close it
+   d.close()                  # close it
 
 
 .. seealso::
diff --git a/Doc/library/ssl.rst b/Doc/library/ssl.rst
index 0367569..d458d8b 100644
--- a/Doc/library/ssl.rst
+++ b/Doc/library/ssl.rst
@@ -1585,7 +1585,7 @@
    except ImportError:
        pass
    else:
-       ... # do something that requires SSL support
+       ...  # do something that requires SSL support
 
 Client-side operation
 ^^^^^^^^^^^^^^^^^^^^^
diff --git a/Doc/library/string.rst b/Doc/library/string.rst
index 1da0c67..d5d2430 100644
--- a/Doc/library/string.rst
+++ b/Doc/library/string.rst
@@ -234,12 +234,12 @@
 
 Some simple format string examples::
 
-   "First, thou shalt count to {0}" # References first positional argument
-   "Bring me a {}"                  # Implicitly references the first positional argument
-   "From {} to {}"                  # Same as "From {0} to {1}"
-   "My quest is {name}"             # References keyword argument 'name'
-   "Weight in tons {0.weight}"      # 'weight' attribute of first positional arg
-   "Units destroyed: {players[0]}"  # First element of keyword argument 'players'.
+   "First, thou shalt count to {0}"  # References first positional argument
+   "Bring me a {}"                   # Implicitly references the first positional argument
+   "From {} to {}"                   # Same as "From {0} to {1}"
+   "My quest is {name}"              # References keyword argument 'name'
+   "Weight in tons {0.weight}"       # 'weight' attribute of first positional arg
+   "Units destroyed: {players[0]}"   # First element of keyword argument 'players'.
 
 The *conversion* field causes a type coercion before formatting.  Normally, the
 job of formatting a value is done by the :meth:`__format__` method of the value
diff --git a/Doc/library/threading.rst b/Doc/library/threading.rst
index c56d707..3066496 100644
--- a/Doc/library/threading.rst
+++ b/Doc/library/threading.rst
@@ -847,7 +847,7 @@
        print("hello, world")
 
    t = Timer(30.0, hello)
-   t.start() # after 30 seconds, "hello, world" will be printed
+   t.start()  # after 30 seconds, "hello, world" will be printed
 
 
 .. class:: Timer(interval, function, args=None, kwargs=None)
diff --git a/Doc/library/tkinter.rst b/Doc/library/tkinter.rst
index 7b14d55..5393124 100644
--- a/Doc/library/tkinter.rst
+++ b/Doc/library/tkinter.rst
@@ -206,7 +206,7 @@
             self.hi_there.pack(side="top")
 
             self.QUIT = tk.Button(self, text="QUIT", fg="red",
-                                                command=root.destroy)
+                                  command=root.destroy)
             self.QUIT.pack(side="bottom")
 
         def say_hi(self):
diff --git a/Doc/library/tokenize.rst b/Doc/library/tokenize.rst
index a5f3be3..272e370 100644
--- a/Doc/library/tokenize.rst
+++ b/Doc/library/tokenize.rst
@@ -201,7 +201,7 @@
         we're only showing 12 digits, and the 13th isn't close to 5, the
         rest of the output should be platform-independent.
 
-        >>> exec(s) #doctest: +ELLIPSIS
+        >>> exec(s)  #doctest: +ELLIPSIS
         -3.21716034272e-0...7
 
         Output from calculations with Decimal should be identical across all
@@ -211,8 +211,8 @@
         -3.217160342717258261933904529E-7
         """
         result = []
-        g = tokenize(BytesIO(s.encode('utf-8')).readline) # tokenize the string
-        for toknum, tokval, _, _, _  in g:
+        g = tokenize(BytesIO(s.encode('utf-8')).readline)  # tokenize the string
+        for toknum, tokval, _, _, _ in g:
             if toknum == NUMBER and '.' in tokval:  # replace NUMBER tokens
                 result.extend([
                     (NAME, 'Decimal'),
diff --git a/Doc/library/types.rst b/Doc/library/types.rst
index eb27846..118bc4c 100644
--- a/Doc/library/types.rst
+++ b/Doc/library/types.rst
@@ -252,10 +252,12 @@
        class SimpleNamespace:
            def __init__(self, **kwargs):
                self.__dict__.update(kwargs)
+
            def __repr__(self):
                keys = sorted(self.__dict__)
                items = ("{}={!r}".format(k, self.__dict__[k]) for k in keys)
                return "{}({})".format(type(self).__name__, ", ".join(items))
+
            def __eq__(self, other):
                return self.__dict__ == other.__dict__
 
diff --git a/Doc/library/unittest.rst b/Doc/library/unittest.rst
index 2e260d1..8482f20 100644
--- a/Doc/library/unittest.rst
+++ b/Doc/library/unittest.rst
@@ -86,19 +86,19 @@
 
   class TestStringMethods(unittest.TestCase):
 
-    def test_upper(self):
-        self.assertEqual('foo'.upper(), 'FOO')
+      def test_upper(self):
+          self.assertEqual('foo'.upper(), 'FOO')
 
-    def test_isupper(self):
-        self.assertTrue('FOO'.isupper())
-        self.assertFalse('Foo'.isupper())
+      def test_isupper(self):
+          self.assertTrue('FOO'.isupper())
+          self.assertFalse('Foo'.isupper())
 
-    def test_split(self):
-        s = 'hello world'
-        self.assertEqual(s.split(), ['hello', 'world'])
-        # check that s.split fails when the separator is not a string
-        with self.assertRaises(TypeError):
-            s.split(2)
+      def test_split(self):
+          s = 'hello world'
+          self.assertEqual(s.split(), ['hello', 'world'])
+          # check that s.split fails when the separator is not a string
+          with self.assertRaises(TypeError):
+              s.split(2)
 
   if __name__ == '__main__':
       unittest.main()
diff --git a/Doc/library/urllib.request.rst b/Doc/library/urllib.request.rst
index 39a42e4..c9225cf 100644
--- a/Doc/library/urllib.request.rst
+++ b/Doc/library/urllib.request.rst
@@ -1174,7 +1174,7 @@
 Here is an example of doing a ``PUT`` request using :class:`Request`::
 
     import urllib.request
-    DATA=b'some data'
+    DATA = b'some data'
     req = urllib.request.Request(url='http://localhost:8080', data=DATA,method='PUT')
     with urllib.request.urlopen(req) as f:
         pass
diff --git a/Doc/library/wsgiref.rst b/Doc/library/wsgiref.rst
index 71607d6..d0a8779 100644
--- a/Doc/library/wsgiref.rst
+++ b/Doc/library/wsgiref.rst
@@ -419,8 +419,8 @@
       # Our callable object which is intentionally not compliant to the
       # standard, so the validator is going to break
       def simple_app(environ, start_response):
-          status = '200 OK' # HTTP Status
-          headers = [('Content-type', 'text/plain')] # HTTP Headers
+          status = '200 OK'  # HTTP Status
+          headers = [('Content-type', 'text/plain')]  # HTTP Headers
           start_response(status, headers)
 
           # This is going to break because we need to return a list, and
@@ -762,8 +762,8 @@
    # is a dictionary containing CGI-style environment variables and the
    # second variable is the callable object (see PEP 333).
    def hello_world_app(environ, start_response):
-       status = '200 OK' # HTTP Status
-       headers = [('Content-type', 'text/plain; charset=utf-8')] # HTTP Headers
+       status = '200 OK'  # HTTP Status
+       headers = [('Content-type', 'text/plain; charset=utf-8')]  # HTTP Headers
        start_response(status, headers)
 
        # The returned object is going to be printed
diff --git a/Doc/library/xml.dom.minidom.rst b/Doc/library/xml.dom.minidom.rst
index cb1c727..a8c1f1d 100644
--- a/Doc/library/xml.dom.minidom.rst
+++ b/Doc/library/xml.dom.minidom.rst
@@ -30,10 +30,10 @@
 
    from xml.dom.minidom import parse, parseString
 
-   dom1 = parse('c:\\temp\\mydata.xml') # parse an XML file by name
+   dom1 = parse('c:\\temp\\mydata.xml')  # parse an XML file by name
 
    datasource = open('c:\\temp\\mydata.xml')
-   dom2 = parse(datasource)   # parse an open file
+   dom2 = parse(datasource)  # parse an open file
 
    dom3 = parseString('<myxml>Some data<empty/> some more data</myxml>')
 
diff --git a/Doc/library/xml.etree.elementtree.rst b/Doc/library/xml.etree.elementtree.rst
index 488cf4e..f5cdf03 100644
--- a/Doc/library/xml.etree.elementtree.rst
+++ b/Doc/library/xml.etree.elementtree.rst
@@ -94,7 +94,7 @@
 It also has children nodes over which we can iterate::
 
    >>> for child in root:
-   ...   print(child.tag, child.attrib)
+   ...     print(child.tag, child.attrib)
    ...
    country {'name': 'Liechtenstein'}
    country {'name': 'Singapore'}
@@ -143,8 +143,8 @@
    [('start', <Element 'mytag' at 0x7fa66db2be58>)]
    >>> parser.feed(' more text</mytag>')
    >>> for event, elem in parser.read_events():
-   ...   print(event)
-   ...   print(elem.tag, 'text=', elem.text)
+   ...     print(event)
+   ...     print(elem.tag, 'text=', elem.text)
    ...
    end
 
@@ -166,7 +166,7 @@
 :meth:`Element.iter`::
 
    >>> for neighbor in root.iter('neighbor'):
-   ...   print(neighbor.attrib)
+   ...     print(neighbor.attrib)
    ...
    {'name': 'Austria', 'direction': 'E'}
    {'name': 'Switzerland', 'direction': 'W'}
@@ -180,9 +180,9 @@
 content.  :meth:`Element.get` accesses the element's attributes::
 
    >>> for country in root.findall('country'):
-   ...   rank = country.find('rank').text
-   ...   name = country.get('name')
-   ...   print(name, rank)
+   ...     rank = country.find('rank').text
+   ...     name = country.get('name')
+   ...     print(name, rank)
    ...
    Liechtenstein 1
    Singapore 4
@@ -206,9 +206,9 @@
 attribute to the rank element::
 
    >>> for rank in root.iter('rank'):
-   ...   new_rank = int(rank.text) + 1
-   ...   rank.text = str(new_rank)
-   ...   rank.set('updated', 'yes')
+   ...     new_rank = int(rank.text) + 1
+   ...     rank.text = str(new_rank)
+   ...     rank.set('updated', 'yes')
    ...
    >>> tree.write('output.xml')
 
@@ -244,9 +244,9 @@
 remove all countries with a rank higher than 50::
 
    >>> for country in root.findall('country'):
-   ...   rank = int(country.find('rank').text)
-   ...   if rank > 50:
-   ...     root.remove(country)
+   ...     rank = int(country.find('rank').text)
+   ...     if rank > 50:
+   ...         root.remove(country)
    ...
    >>> tree.write('output.xml')
 
diff --git a/Doc/library/xmlrpc.client.rst b/Doc/library/xmlrpc.client.rst
index 0edf010..f66a230 100644
--- a/Doc/library/xmlrpc.client.rst
+++ b/Doc/library/xmlrpc.client.rst
@@ -216,7 +216,7 @@
    from xmlrpc.server import SimpleXMLRPCServer
 
    def is_even(n):
-       return n%2 == 0
+       return n % 2 == 0
 
    server = SimpleXMLRPCServer(("localhost", 8000))
    print("Listening on port 8000...")
@@ -373,7 +373,7 @@
 
    # A marshalling error is going to occur because we're returning a
    # complex number
-   def add(x,y):
+   def add(x, y):
        return x+y+0j
 
    server = SimpleXMLRPCServer(("localhost", 8000))
@@ -566,12 +566,15 @@
    class ProxiedTransport(xmlrpc.client.Transport):
        def set_proxy(self, proxy):
            self.proxy = proxy
+
        def make_connection(self, host):
            self.realhost = host
            h = http.client.HTTPConnection(self.proxy)
            return h
+
        def send_request(self, connection, handler, request_body, debug):
            connection.putrequest("POST", 'http://%s%s' % (self.realhost, handler))
+
        def send_host(self, connection, host):
            connection.putheader('Host', self.realhost)
 
diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst
index 997e9ee..2b59ce1 100644
--- a/Doc/reference/datamodel.rst
+++ b/Doc/reference/datamodel.rst
@@ -1753,11 +1753,11 @@
 
     class OrderedClass(type):
 
-         @classmethod
-         def __prepare__(metacls, name, bases, **kwds):
+        @classmethod
+        def __prepare__(metacls, name, bases, **kwds):
             return collections.OrderedDict()
 
-         def __new__(cls, name, bases, namespace, **kwds):
+        def __new__(cls, name, bases, namespace, **kwds):
             result = type.__new__(cls, name, bases, dict(namespace))
             result.members = tuple(namespace)
             return result
diff --git a/Doc/reference/expressions.rst b/Doc/reference/expressions.rst
index c3c3e06..036f4f1 100644
--- a/Doc/reference/expressions.rst
+++ b/Doc/reference/expressions.rst
@@ -728,7 +728,7 @@
 (and the ``**expression`` argument, if any -- see below).  So::
 
    >>> def f(a, b):
-   ...  print(a, b)
+   ...     print(a, b)
    ...
    >>> f(b=1, *(2,))
    2 1
diff --git a/Doc/reference/simple_stmts.rst b/Doc/reference/simple_stmts.rst
index 79a46e2..4444add 100644
--- a/Doc/reference/simple_stmts.rst
+++ b/Doc/reference/simple_stmts.rst
@@ -331,12 +331,12 @@
 The simple form, ``assert expression``, is equivalent to ::
 
    if __debug__:
-      if not expression: raise AssertionError
+       if not expression: raise AssertionError
 
 The extended form, ``assert expression1, expression2``, is equivalent to ::
 
    if __debug__:
-      if not expression1: raise AssertionError(expression2)
+       if not expression1: raise AssertionError(expression2)
 
 .. index::
    single: __debug__
diff --git a/Doc/tutorial/appendix.rst b/Doc/tutorial/appendix.rst
index e04459b..ffd16aa 100644
--- a/Doc/tutorial/appendix.rst
+++ b/Doc/tutorial/appendix.rst
@@ -92,7 +92,7 @@
    filename = os.environ.get('PYTHONSTARTUP')
    if filename and os.path.isfile(filename):
        with open(filename) as fobj:
-          startup_file = fobj.read()
+           startup_file = fobj.read()
        exec(startup_file)
 
 
diff --git a/Doc/tutorial/classes.rst b/Doc/tutorial/classes.rst
index 7e014ef..cc2c35b 100644
--- a/Doc/tutorial/classes.rst
+++ b/Doc/tutorial/classes.rst
@@ -162,12 +162,15 @@
    def scope_test():
        def do_local():
            spam = "local spam"
+
        def do_nonlocal():
            nonlocal spam
            spam = "nonlocal spam"
+
        def do_global():
            global spam
            spam = "global spam"
+
        spam = "test spam"
        do_local()
        print("After local assignment:", spam)
@@ -260,6 +263,7 @@
    class MyClass:
        """A simple example class"""
        i = 12345
+
        def f(self):
            return 'hello world'
 
@@ -508,8 +512,10 @@
 
    class C:
        f = f1
+
        def g(self):
            return 'hello world'
+
        h = g
 
 Now ``f``, ``g`` and ``h`` are all attributes of class :class:`C` that refer to
@@ -523,8 +529,10 @@
    class Bag:
        def __init__(self):
            self.data = []
+
        def add(self, x):
            self.data.append(x)
+
        def addtwice(self, x):
            self.add(x)
            self.add(x)
@@ -713,7 +721,7 @@
    class Employee:
        pass
 
-   john = Employee() # Create an empty employee record
+   john = Employee()  # Create an empty employee record
 
    # Fill the fields of the record
    john.name = 'John Doe'
@@ -839,8 +847,10 @@
        def __init__(self, data):
            self.data = data
            self.index = len(data)
+
        def __iter__(self):
            return self
+
        def __next__(self):
            if self.index == 0:
                raise StopIteration
diff --git a/Doc/tutorial/controlflow.rst b/Doc/tutorial/controlflow.rst
index 813c828..65f83bf 100644
--- a/Doc/tutorial/controlflow.rst
+++ b/Doc/tutorial/controlflow.rst
@@ -312,7 +312,7 @@
 It is simple to write a function that returns a list of the numbers of the
 Fibonacci series, instead of printing it::
 
-   >>> def fib2(n): # return Fibonacci series up to n
+   >>> def fib2(n):  # return Fibonacci series up to n
    ...     """Return a list containing the Fibonacci series up to n."""
    ...     result = []
    ...     a, b = 0, 1
@@ -540,7 +540,7 @@
 keywords rather than positional arguments. ::
 
    >>> def concat(*args, sep="/"):
-   ...    return sep.join(args)
+   ...     return sep.join(args)
    ...
    >>> concat("earth", "mars", "venus")
    'earth/mars/venus'
diff --git a/Doc/tutorial/errors.rst b/Doc/tutorial/errors.rst
index 351ee52..4195c7e 100644
--- a/Doc/tutorial/errors.rst
+++ b/Doc/tutorial/errors.rst
@@ -170,15 +170,15 @@
 raising it and add any attributes to it as desired. ::
 
    >>> try:
-   ...    raise Exception('spam', 'eggs')
+   ...     raise Exception('spam', 'eggs')
    ... except Exception as inst:
-   ...    print(type(inst))    # the exception instance
-   ...    print(inst.args)     # arguments stored in .args
-   ...    print(inst)          # __str__ allows args to be printed directly,
-   ...                         # but may be overridden in exception subclasses
-   ...    x, y = inst.args     # unpack args
-   ...    print('x =', x)
-   ...    print('y =', y)
+   ...     print(type(inst))    # the exception instance
+   ...     print(inst.args)     # arguments stored in .args
+   ...     print(inst)          # __str__ allows args to be printed directly,
+   ...                          # but may be overridden in exception subclasses
+   ...     x, y = inst.args     # unpack args
+   ...     print('x =', x)
+   ...     print('y =', y)
    ...
    <class 'Exception'>
    ('spam', 'eggs')
diff --git a/Doc/tutorial/inputoutput.rst b/Doc/tutorial/inputoutput.rst
index 02bb28b..dd9c7cd 100644
--- a/Doc/tutorial/inputoutput.rst
+++ b/Doc/tutorial/inputoutput.rst
@@ -338,11 +338,11 @@
    >>> f = open('workfile', 'rb+')
    >>> f.write(b'0123456789abcdef')
    16
-   >>> f.seek(5)     # Go to the 6th byte in the file
+   >>> f.seek(5)      # Go to the 6th byte in the file
    5
    >>> f.read(1)
    b'5'
-   >>> f.seek(-3, 2) # Go to the 3rd byte before the end
+   >>> f.seek(-3, 2)  # Go to the 3rd byte before the end
    13
    >>> f.read(1)
    b'd'
diff --git a/Doc/tutorial/introduction.rst b/Doc/tutorial/introduction.rst
index 8758f38..2140329 100644
--- a/Doc/tutorial/introduction.rst
+++ b/Doc/tutorial/introduction.rst
@@ -232,7 +232,7 @@
 This feature is particularly useful when you want to break long strings::
 
    >>> text = ('Put several strings within parentheses '
-               'to have them joined together.')
+   ...         'to have them joined together.')
    >>> text
    'Put several strings within parentheses to have them joined together.'
 
@@ -276,11 +276,11 @@
 Slice indices have useful defaults; an omitted first index defaults to zero, an
 omitted second index defaults to the size of the string being sliced. ::
 
-   >>> word[:2]  # character from the beginning to position 2 (excluded)
+   >>> word[:2]   # character from the beginning to position 2 (excluded)
    'Py'
-   >>> word[4:]  # characters from position 4 (included) to the end
+   >>> word[4:]   # characters from position 4 (included) to the end
    'on'
-   >>> word[-2:] # characters from the second-last (included) to the end
+   >>> word[-2:]  # characters from the second-last (included) to the end
    'on'
 
 One way to remember how slices work is to think of the indices as pointing
diff --git a/Doc/tutorial/modules.rst b/Doc/tutorial/modules.rst
index 5fbd879..261a3f3 100644
--- a/Doc/tutorial/modules.rst
+++ b/Doc/tutorial/modules.rst
@@ -34,7 +34,7 @@
            a, b = b, a+b
        print()
 
-   def fib2(n): # return Fibonacci series up to n
+   def fib2(n):   # return Fibonacci series up to n
        result = []
        a, b = 0, 1
        while b < n:
diff --git a/Doc/tutorial/stdlib.rst b/Doc/tutorial/stdlib.rst
index eca685c..52ffdbe 100644
--- a/Doc/tutorial/stdlib.rst
+++ b/Doc/tutorial/stdlib.rst
@@ -301,7 +301,7 @@
            with self.assertRaises(TypeError):
                average(20, 30, 70)
 
-   unittest.main() # Calling from the command line invokes all tests
+   unittest.main()  # Calling from the command line invokes all tests
 
 
 .. _tut-batteries-included:
diff --git a/Doc/tutorial/stdlib2.rst b/Doc/tutorial/stdlib2.rst
index f7d2a0a..3714384 100644
--- a/Doc/tutorial/stdlib2.rst
+++ b/Doc/tutorial/stdlib2.rst
@@ -180,6 +180,7 @@
            threading.Thread.__init__(self)
            self.infile = infile
            self.outfile = outfile
+
        def run(self):
            f = zipfile.ZipFile(self.outfile, 'w', zipfile.ZIP_DEFLATED)
            f.write(self.infile)
diff --git a/Doc/whatsnew/3.2.rst b/Doc/whatsnew/3.2.rst
index aa41b29..baaf797 100644
--- a/Doc/whatsnew/3.2.rst
+++ b/Doc/whatsnew/3.2.rst
@@ -116,7 +116,7 @@
 
 Example of calling the parser on a command string::
 
-    >>> cmd  = 'deploy sneezy.example.com sleepy.example.com -u skycaptain'
+    >>> cmd = 'deploy sneezy.example.com sleepy.example.com -u skycaptain'
     >>> result = parser.parse_args(cmd.split())
     >>> result.action
     'deploy'
@@ -212,7 +212,8 @@
 
    >>> import json, logging.config
    >>> with open('conf.json') as f:
-           conf = json.load(f)
+   ...     conf = json.load(f)
+   ...
    >>> logging.config.dictConfig(conf)
    >>> logging.info("Transaction completed normally")
    INFO    : root           : Transaction completed normally
@@ -460,15 +461,15 @@
     'The testing project status is green as of February 15, 2011'
 
     >>> class LowerCasedDict(dict):
-            def __getitem__(self, key):
-                return dict.__getitem__(self, key.lower())
+    ...     def __getitem__(self, key):
+    ...         return dict.__getitem__(self, key.lower())
     >>> lcd = LowerCasedDict(part='widgets', quantity=10)
     >>> 'There are {QUANTITY} {Part} in stock'.format_map(lcd)
     'There are 10 widgets in stock'
 
     >>> class PlaceholderDict(dict):
-            def __missing__(self, key):
-                return '<{}>'.format(key)
+    ...     def __missing__(self, key):
+    ...         return '<{}>'.format(key)
     >>> 'Hello {name}, welcome to {location}'.format_map(PlaceholderDict())
     'Hello <name>, welcome to <location>'
 
@@ -496,10 +497,10 @@
   exceptions pass through::
 
     >>> class A:
-            @property
-            def f(self):
-                return 1 // 0
-
+    ...     @property
+    ...     def f(self):
+    ...         return 1 // 0
+    ...
     >>> a = A()
     >>> hasattr(a, 'f')
     Traceback (most recent call last):
@@ -537,7 +538,7 @@
 
        def outer(x):
            def inner():
-              return x
+               return x
            inner()
            del x
 
@@ -547,12 +548,12 @@
 
        def f():
            def print_error():
-              print(e)
+               print(e)
            try:
-              something
+               something
            except Exception as e:
-              print_error()
-              # implicit "del e" here
+               print_error()
+               # implicit "del e" here
 
   (See :issue:`4617`.)
 
@@ -799,6 +800,7 @@
         def __eq__(self, other):
             return ((self.lastname.lower(), self.firstname.lower()) ==
                     (other.lastname.lower(), other.firstname.lower()))
+
         def __lt__(self, other):
             return ((self.lastname.lower(), self.firstname.lower()) <
                     (other.lastname.lower(), other.firstname.lower()))
@@ -942,7 +944,7 @@
     def get_votes(site):
         ballots = conduct_election(site)
         try:
-            all_polls_closed.wait(timeout = midnight - time.now())
+            all_polls_closed.wait(timeout=midnight - time.now())
         except BrokenBarrierError:
             lockbox = seal_ballots(ballots)
             queue.put(lockbox)
@@ -1097,16 +1099,16 @@
     >>> REC_LEN, LOC_START, LOC_LEN = 34, 7, 11
 
     >>> def change_location(buffer, record_number, location):
-            start = record_number * REC_LEN + LOC_START
-            buffer[start: start+LOC_LEN] = location
+    ...     start = record_number * REC_LEN + LOC_START
+    ...     buffer[start: start+LOC_LEN] = location
 
     >>> import io
 
     >>> byte_stream = io.BytesIO(
-        b'G3805  storeroom  Main chassis    '
-        b'X7899  shipping   Reserve cog     '
-        b'L6988  receiving  Primary sprocket'
-    )
+    ...     b'G3805  storeroom  Main chassis    '
+    ...     b'X7899  shipping   Reserve cog     '
+    ...     b'L6988  receiving  Primary sprocket'
+    ... )
     >>> buffer = byte_stream.getbuffer()
     >>> change_location(buffer, 1, b'warehouse  ')
     >>> change_location(buffer, 0, b'showroom   ')
@@ -1131,10 +1133,10 @@
 :meth:`__repr__` and substituting a placeholder string instead::
 
         >>> class MyList(list):
-                @recursive_repr()
-                def __repr__(self):
-                    return '<' + '|'.join(map(repr, self)) + '>'
-
+        ...     @recursive_repr()
+        ...     def __repr__(self):
+        ...         return '<' + '|'.join(map(repr, self)) + '>'
+        ...
         >>> m = MyList('abc')
         >>> m.append(m)
         >>> m.append('x')
@@ -1197,8 +1199,8 @@
     >>> w.writeheader()
     "name","dept"
     >>> w.writerows([
-            {'name': 'tom', 'dept': 'accounting'},
-            {'name': 'susan', 'dept': 'Salesl'}])
+    ...     {'name': 'tom', 'dept': 'accounting'},
+    ...     {'name': 'susan', 'dept': 'Salesl'}])
     "tom","accounting"
     "susan","sales"
 
@@ -1423,14 +1425,14 @@
     >>> import tarfile, glob
 
     >>> def myfilter(tarinfo):
-           if tarinfo.isfile():             # only save real files
-                tarinfo.uname = 'monty'     # redact the user name
-                return tarinfo
+    ...     if tarinfo.isfile():             # only save real files
+    ...         tarinfo.uname = 'monty'      # redact the user name
+    ...         return tarinfo
 
     >>> with tarfile.open(name='myarchive.tar.gz', mode='w:gz') as tf:
-            for filename in glob.glob('*.txt'):
-                tf.add(filename, filter=myfilter)
-            tf.list()
+    ...     for filename in glob.glob('*.txt'):
+    ...         tf.add(filename, filter=myfilter)
+    ...     tf.list()
     -rw-r--r-- monty/501        902 2011-01-26 17:59:11 annotations.txt
     -rw-r--r-- monty/501        123 2011-01-26 17:59:11 general_questions.txt
     -rw-r--r-- monty/501       3514 2011-01-26 17:59:11 prion.txt
@@ -1536,26 +1538,26 @@
 
     >>> import shutil, pprint
 
-    >>> os.chdir('mydata')                               # change to the source directory
+    >>> os.chdir('mydata')  # change to the source directory
     >>> f = shutil.make_archive('/var/backup/mydata',
-                                'zip')                   # archive the current directory
-    >>> f                                                # show the name of archive
+    ...                         'zip')      # archive the current directory
+    >>> f                                   # show the name of archive
     '/var/backup/mydata.zip'
-    >>> os.chdir('tmp')                                  # change to an unpacking
+    >>> os.chdir('tmp')                     # change to an unpacking
     >>> shutil.unpack_archive('/var/backup/mydata.zip')  # recover the data
 
-    >>> pprint.pprint(shutil.get_archive_formats())      # display known formats
+    >>> pprint.pprint(shutil.get_archive_formats())  # display known formats
     [('bztar', "bzip2'ed tar-file"),
      ('gztar', "gzip'ed tar-file"),
      ('tar', 'uncompressed tar file'),
      ('zip', 'ZIP file')]
 
-    >>> shutil.register_archive_format(                  # register a new archive format
-            name = 'xz',
-            function = xz.compress,                      # callable archiving function
-            extra_args = [('level', 8)],                 # arguments to the function
-            description = 'xz compression'
-    )
+    >>> shutil.register_archive_format(     # register a new archive format
+    ...     name='xz',
+    ...     function=xz.compress,           # callable archiving function
+    ...     extra_args=[('level', 8)],      # arguments to the function
+    ...     description='xz compression'
+    ... )
 
 (Contributed by Tarek Ziadé.)
 
@@ -1854,7 +1856,7 @@
 
     >>> from inspect import getgeneratorstate
     >>> def gen():
-            yield 'demo'
+    ...     yield 'demo'
     >>> g = gen()
     >>> getgeneratorstate(g)
     'GEN_CREATED'
@@ -1874,11 +1876,11 @@
   change state while it is searching::
 
     >>> class A:
-            @property
-            def f(self):
-                print('Running')
-                return 10
-
+    ...     @property
+    ...     def f(self):
+    ...         print('Running')
+    ...         return 10
+    ...
     >>> a = A()
     >>> getattr(a, 'f')
     Running
@@ -2102,19 +2104,19 @@
 
     >>> parser = ConfigParser()
     >>> parser.read_string("""
-    [DEFAULT]
-    location = upper left
-    visible = yes
-    editable = no
-    color = blue
-
-    [main]
-    title = Main Menu
-    color = green
-
-    [options]
-    title = Options
-    """)
+    ... [DEFAULT]
+    ... location = upper left
+    ... visible = yes
+    ... editable = no
+    ... color = blue
+    ...
+    ... [main]
+    ... title = Main Menu
+    ... color = green
+    ...
+    ... [options]
+    ... title = Options
+    ... """)
     >>> parser['main']['color']
     'green'
     >>> parser['main']['editable']
@@ -2138,24 +2140,24 @@
 
   >>> parser = ConfigParser(interpolation=ExtendedInterpolation())
   >>> parser.read_dict({'buildout': {'directory': '/home/ambv/zope9'},
-                        'custom': {'prefix': '/usr/local'}})
+  ...                   'custom': {'prefix': '/usr/local'}})
   >>> parser.read_string("""
-      [buildout]
-      parts =
-        zope9
-        instance
-      find-links =
-        ${buildout:directory}/downloads/dist
-
-      [zope9]
-      recipe = plone.recipe.zope9install
-      location = /opt/zope
-
-      [instance]
-      recipe = plone.recipe.zope9instance
-      zope9-location = ${zope9:location}
-      zope-conf = ${custom:prefix}/etc/zope.conf
-      """)
+  ... [buildout]
+  ... parts =
+  ...   zope9
+  ...   instance
+  ... find-links =
+  ...   ${buildout:directory}/downloads/dist
+  ...
+  ... [zope9]
+  ... recipe = plone.recipe.zope9install
+  ... location = /opt/zope
+  ...
+  ... [instance]
+  ... recipe = plone.recipe.zope9instance
+  ... zope9-location = ${zope9:location}
+  ... zope-conf = ${custom:prefix}/etc/zope.conf
+  ... """)
   >>> parser['buildout']['find-links']
   '\n/home/ambv/zope9/downloads/dist'
   >>> parser['instance']['zope-conf']
@@ -2207,9 +2209,9 @@
 :func:`~urllib.parse.quote_plus` for encoding::
 
     >>> urllib.parse.urlencode([
-             ('type', 'telenovela'),
-             ('name', '¿Dónde Está Elisa?')],
-             encoding='latin-1')
+    ...      ('type', 'telenovela'),
+    ...      ('name', '¿Dónde Está Elisa?')],
+    ...      encoding='latin-1')
     'type=telenovela&name=%BFD%F3nde+Est%E1+Elisa%3F'
 
 As detailed in :ref:`parsing-ascii-encoded-bytes`, all the :mod:`urllib.parse`
diff --git a/Doc/whatsnew/3.3.rst b/Doc/whatsnew/3.3.rst
index 779f7f4..2096b0b 100644
--- a/Doc/whatsnew/3.3.rst
+++ b/Doc/whatsnew/3.3.rst
@@ -440,15 +440,15 @@
     ...
     >>> tallies = []
     >>> acc = gather_tallies(tallies)
-    >>> next(acc) # Ensure the accumulator is ready to accept values
+    >>> next(acc)  # Ensure the accumulator is ready to accept values
     >>> for i in range(4):
     ...     acc.send(i)
     ...
-    >>> acc.send(None) # Finish the first tally
+    >>> acc.send(None)  # Finish the first tally
     >>> for i in range(5):
     ...     acc.send(i)
     ...
-    >>> acc.send(None) # Finish the second tally
+    >>> acc.send(None)  # Finish the second tally
     >>> tallies
     [6, 10]
 
diff --git a/Doc/whatsnew/3.4.rst b/Doc/whatsnew/3.4.rst
index 339b586..6edc1b1 100644
--- a/Doc/whatsnew/3.4.rst
+++ b/Doc/whatsnew/3.4.rst
@@ -746,7 +746,7 @@
 method, equivalent to calling :mod:`~dis.dis` on the constructor argument, but
 returned as a multi-line string::
 
-    >>> bytecode = dis.Bytecode(lambda x: x +1, current_offset=3)
+    >>> bytecode = dis.Bytecode(lambda x: x + 1, current_offset=3)
     >>> for instr in bytecode:
     ...     print('{} ({})'.format(instr.opname, instr.opcode))
     LOAD_FAST (124)