diff --git a/Doc/extending/newtypes.rst b/Doc/extending/newtypes.rst
index 3f9054b..030de57 100644
--- a/Doc/extending/newtypes.rst
+++ b/Doc/extending/newtypes.rst
@@ -840,8 +840,8 @@
 previous sections. We will break down the main differences between them. ::
 
    typedef struct {
-   	PyListObject list;
-   	int state;
+       PyListObject list;
+       int state;
    } Shoddy;
 
 The primary difference for derived type objects is that the base type's object
@@ -854,10 +854,10 @@
    static int
    Shoddy_init(Shoddy *self, PyObject *args, PyObject *kwds)
    {
-   	if (PyList_Type.tp_init((PyObject *)self, args, kwds) < 0)
-   		return -1;
-   	self->state = 0;
-   	return 0;
+       if (PyList_Type.tp_init((PyObject *)self, args, kwds) < 0)
+          return -1;
+       self->state = 0;
+       return 0;
    }
 
 In the :attr:`__init__` method for our type, we can see how to call through to
@@ -876,18 +876,18 @@
    PyMODINIT_FUNC
    initshoddy(void)
    {
-   	PyObject *m;
+       PyObject *m;
 
-   	ShoddyType.tp_base = &PyList_Type;
-   	if (PyType_Ready(&ShoddyType) < 0)
-   		return;
+       ShoddyType.tp_base = &PyList_Type;
+       if (PyType_Ready(&ShoddyType) < 0)
+           return;
 
-   	m = Py_InitModule3("shoddy", NULL, "Shoddy module");
-   	if (m == NULL)
-   		return;
+       m = Py_InitModule3("shoddy", NULL, "Shoddy module");
+       if (m == NULL)
+           return;
 
-   	Py_INCREF(&ShoddyType);
-   	PyModule_AddObject(m, "Shoddy", (PyObject *) &ShoddyType);
+       Py_INCREF(&ShoddyType);
+       PyModule_AddObject(m, "Shoddy", (PyObject *) &ShoddyType);
    }
 
 Before calling :cfunc:`PyType_Ready`, the type structure must have the
@@ -1167,7 +1167,7 @@
    typedef struct PyMethodDef {
        char        *ml_name;       /* method name */
        PyCFunction  ml_meth;       /* implementation function */
-       int	         ml_flags;      /* flags */
+       int          ml_flags;      /* flags */
        char        *ml_doc;        /* docstring */
    } PyMethodDef;
 
diff --git a/Doc/howto/curses.rst b/Doc/howto/curses.rst
index 0600ea6..2d964c3 100644
--- a/Doc/howto/curses.rst
+++ b/Doc/howto/curses.rst
@@ -297,7 +297,7 @@
 could code::
 
    stdscr.addstr(0, 0, "Current mode: Typing mode",
-   	      curses.A_REVERSE)
+                 curses.A_REVERSE)
    stdscr.refresh()
 
 The curses library also supports color on those terminals that provide it, The
diff --git a/Doc/howto/regex.rst b/Doc/howto/regex.rst
index 4275ffb..051e7d7 100644
--- a/Doc/howto/regex.rst
+++ b/Doc/howto/regex.rst
@@ -917,7 +917,7 @@
 
    InternalDate = re.compile(r'INTERNALDATE "'
            r'(?P<day>[ 123][0-9])-(?P<mon>[A-Z][a-z][a-z])-'
-   	r'(?P<year>[0-9][0-9][0-9][0-9])'
+           r'(?P<year>[0-9][0-9][0-9][0-9])'
            r' (?P<hour>[0-9][0-9]):(?P<min>[0-9][0-9]):(?P<sec>[0-9][0-9])'
            r' (?P<zonen>[-+])(?P<zoneh>[0-9][0-9])(?P<zonem>[0-9][0-9])'
            r'"')
diff --git a/Doc/howto/sockets.rst b/Doc/howto/sockets.rst
index 3734d69..3cba020 100644
--- a/Doc/howto/sockets.rst
+++ b/Doc/howto/sockets.rst
@@ -190,33 +190,33 @@
        '''
 
        def __init__(self, sock=None):
-   	if sock is None:
-   	    self.sock = socket.socket(
-   		socket.AF_INET, socket.SOCK_STREAM)
-   	else:
-   	    self.sock = sock
+           if sock is None:
+               self.sock = socket.socket(
+                   socket.AF_INET, socket.SOCK_STREAM)
+           else:
+               self.sock = sock
 
        def connect(self, host, port):
-   	self.sock.connect((host, port))
+           self.sock.connect((host, port))
 
        def mysend(self, msg):
-   	totalsent = 0
-   	while totalsent < MSGLEN:
-   	    sent = self.sock.send(msg[totalsent:])
-   	    if sent == 0:
-   		raise RuntimeError, \
-   		    "socket connection broken"
-   	    totalsent = totalsent + sent
+           totalsent = 0
+           while totalsent < MSGLEN:
+               sent = self.sock.send(msg[totalsent:])
+               if sent == 0:
+                   raise RuntimeError, \
+                       "socket connection broken"
+               totalsent = totalsent + sent
 
        def myreceive(self):
-   	msg = ''
-   	while len(msg) < MSGLEN:
-   	    chunk = self.sock.recv(MSGLEN-len(msg))
-   	    if chunk == '':
-   		raise RuntimeError, \
-   		    "socket connection broken"
-   	    msg = msg + chunk
-   	return msg
+           msg = ''
+           while len(msg) < MSGLEN:
+               chunk = self.sock.recv(MSGLEN-len(msg))
+               if chunk == '':
+                   raise RuntimeError, \
+                       "socket connection broken"
+               msg = msg + chunk
+           return msg
 
 The sending code here is usable for almost any messaging scheme - in Python you
 send strings, and you can use ``len()`` to determine its length (even if it has
diff --git a/Doc/howto/unicode.rst b/Doc/howto/unicode.rst
index 7f246cc..c09a72d 100644
--- a/Doc/howto/unicode.rst
+++ b/Doc/howto/unicode.rst
@@ -30,8 +30,8 @@
 looking at Apple ][ BASIC programs, published in French-language publications in
 the mid-1980s, that had lines like these::
 
-	PRINT "FICHIER EST COMPLETE."
-	PRINT "CARACTERE NON ACCEPTE."
+   PRINT "FICHIER EST COMPLETE."
+   PRINT "CARACTERE NON ACCEPTE."
 
 Those messages should contain accents, and they just look wrong to someone who
 can read French.
@@ -89,11 +89,11 @@
 character with value 0x12ca (4810 decimal).  The Unicode standard contains a lot
 of tables listing characters and their corresponding code points::
 
-	0061    'a'; LATIN SMALL LETTER A
-	0062    'b'; LATIN SMALL LETTER B
-	0063    'c'; LATIN SMALL LETTER C
-        ...
-	007B	'{'; LEFT CURLY BRACKET
+   0061    'a'; LATIN SMALL LETTER A
+   0062    'b'; LATIN SMALL LETTER B
+   0063    'c'; LATIN SMALL LETTER C
+   ...
+   007B    '{'; LEFT CURLY BRACKET
 
 Strictly, these definitions imply that it's meaningless to say 'this is
 character U+12ca'.  U+12ca is a code point, which represents some particular
@@ -597,19 +597,19 @@
 path will return the 8-bit versions of the filenames.  For example, assuming the
 default filesystem encoding is UTF-8, running the following program::
 
-	fn = u'filename\u4500abc'
-	f = open(fn, 'w')
-	f.close()
+   fn = u'filename\u4500abc'
+   f = open(fn, 'w')
+   f.close()
 
-	import os
-	print os.listdir('.')
-	print os.listdir(u'.')
+   import os
+   print os.listdir('.')
+   print os.listdir(u'.')
 
 will produce the following output::
 
-	amk:~$ python t.py
-	['.svn', 'filename\xe4\x94\x80abc', ...]
-	[u'.svn', u'filename\u4500abc', ...]
+   amk:~$ python t.py
+   ['.svn', 'filename\xe4\x94\x80abc', ...]
+   [u'.svn', u'filename\u4500abc', ...]
 
 The first list contains UTF-8-encoded filenames, and the second list contains
 the Unicode versions.
@@ -703,26 +703,26 @@
    - [ ] Unicode introduction
        - [ ] ASCII
        - [ ] Terms
-	   - [ ] Character
-	   - [ ] Code point
-	 - [ ] Encodings
-	    - [ ] Common encodings: ASCII, Latin-1, UTF-8
+           - [ ] Character
+           - [ ] Code point
+         - [ ] Encodings
+            - [ ] Common encodings: ASCII, Latin-1, UTF-8
        - [ ] Unicode Python type
-	   - [ ] Writing unicode literals
-	       - [ ] Obscurity: -U switch
-	   - [ ] Built-ins
-	       - [ ] unichr()
-	       - [ ] ord()
-	       - [ ] unicode() constructor
-	   - [ ] Unicode type
-	       - [ ] encode(), decode() methods
+           - [ ] Writing unicode literals
+               - [ ] Obscurity: -U switch
+           - [ ] Built-ins
+               - [ ] unichr()
+               - [ ] ord()
+               - [ ] unicode() constructor
+           - [ ] Unicode type
+               - [ ] encode(), decode() methods
        - [ ] Unicodedata module for character properties
        - [ ] I/O
-	   - [ ] Reading/writing Unicode data into files
-	       - [ ] Byte-order marks
-	   - [ ] Unicode filenames
+           - [ ] Reading/writing Unicode data into files
+               - [ ] Byte-order marks
+           - [ ] Unicode filenames
        - [ ] Writing Unicode programs
-	   - [ ] Do everything in Unicode
-	   - [ ] Declaring source code encodings (PEP 263)
+           - [ ] Do everything in Unicode
+           - [ ] Declaring source code encodings (PEP 263)
        - [ ] Other issues
-	   - [ ] Building Python (UCS2, UCS4)
+           - [ ] Building Python (UCS2, UCS4)
diff --git a/Doc/library/abc.rst b/Doc/library/abc.rst
index a4b29f6..8014aed 100644
--- a/Doc/library/abc.rst
+++ b/Doc/library/abc.rst
@@ -43,15 +43,15 @@
       Register *subclass* as a "virtual subclass" of this ABC. For
       example::
 
-	from abc import ABCMeta
+        from abc import ABCMeta
 
-	class MyABC:
-	    __metaclass__ = ABCMeta
+        class MyABC:
+            __metaclass__ = ABCMeta
 
-	MyABC.register(tuple)
+        MyABC.register(tuple)
 
-	assert issubclass(tuple, MyABC)
-	assert isinstance((), MyABC)
+        assert issubclass(tuple, MyABC)
+        assert isinstance((), MyABC)
 
    You can also override this method in an abstract base class:
 
diff --git a/Doc/library/collections.rst b/Doc/library/collections.rst
index 2f72dcf..2725d68 100644
--- a/Doc/library/collections.rst
+++ b/Doc/library/collections.rst
@@ -53,7 +53,7 @@
 :class:`Hashable`                                 ``__hash__``
 :class:`Iterable`                                 ``__iter__``
 :class:`Iterator`          :class:`Iterable`      ``__next__``            ``__iter__``
-:class:`Sized`          			  ``__len__``
+:class:`Sized`                                    ``__len__``
 :class:`Callable`                                 ``__call__``
 
 :class:`Sequence`          :class:`Sized`,        ``__getitem__``         ``__contains__``. ``__iter__``, ``__reversed__``.
@@ -80,7 +80,7 @@
 :class:`MutableMapping`    :class:`Mapping`       ``__getitem__``         Inherited Mapping methods and
                                                   ``__setitem__``,        ``pop``, ``popitem``, ``clear``, ``update``,
                                                   ``__delitem__``,        and ``setdefault``
-						  ``__iter__``, and
+                                                  ``__iter__``, and
                                                   ``__len__``
 
 :class:`MappingView`       :class:`Sized`                                 ``__len__``
@@ -96,7 +96,7 @@
 
     size = None
     if isinstance(myvar, collections.Sized):
-	size = len(myvar)
+        size = len(myvar)
 
 Several of the ABCs are also useful as mixins that make it easier to develop
 classes supporting container APIs.  For example, to write a class supporting
diff --git a/Doc/library/gettext.rst b/Doc/library/gettext.rst
index 22ad668..b95eb79 100644
--- a/Doc/library/gettext.rst
+++ b/Doc/library/gettext.rst
@@ -648,10 +648,9 @@
 
    animals = ['mollusk',
               'albatross',
-   	   'rat',
-   	   'penguin',
-   	   'python',
-   	   ]
+              'rat',
+              'penguin',
+              'python', ]
    # ...
    for a in animals:
        print a
@@ -666,10 +665,9 @@
 
    animals = [_('mollusk'),
               _('albatross'),
-   	   _('rat'),
-   	   _('penguin'),
-   	   _('python'),
-   	   ]
+              _('rat'),
+              _('penguin'),
+              _('python'), ]
 
    del _
 
@@ -692,10 +690,9 @@
 
    animals = [N_('mollusk'),
               N_('albatross'),
-   	   N_('rat'),
-   	   N_('penguin'),
-   	   N_('python'),
-   	   ]
+              N_('rat'),
+              N_('penguin'),
+              N_('python'), ]
 
    # ...
    for a in animals:
diff --git a/Doc/library/multiprocessing.rst b/Doc/library/multiprocessing.rst
index ec27be0..72cf510 100644
--- a/Doc/library/multiprocessing.rst
+++ b/Doc/library/multiprocessing.rst
@@ -37,7 +37,7 @@
         >>> from multiprocessing import Pool
         >>> p = Pool(5)
         >>> def f(x):
-        ... 	return x*x
+        ...     return x*x
         ...
         >>> p.map(f, [1,2,3])
         Process PoolWorker-1:
diff --git a/Doc/library/optparse.rst b/Doc/library/optparse.rst
index e201d22..6af4074 100644
--- a/Doc/library/optparse.rst
+++ b/Doc/library/optparse.rst
@@ -548,8 +548,8 @@
 :class:`OptionGroup` to a parser is easy::
 
     group = OptionGroup(parser, "Dangerous Options",
-			"Caution: use these options at your own risk.  "
-			"It is believed that some of them bite.")
+                        "Caution: use these options at your own risk.  "
+                        "It is believed that some of them bite.")
     group.add_option("-g", action="store_true", help="Group option.")
     parser.add_option_group(group)
 
@@ -563,12 +563,12 @@
       -q, --quiet          be vewwy quiet (I'm hunting wabbits)
       -fFILE, --file=FILE  write output to FILE
       -mMODE, --mode=MODE  interaction mode: one of 'novice', 'intermediate'
-			   [default], 'expert'
+                           [default], 'expert'
 
       Dangerous Options:
-	Caution: use of these options is at your own risk.  It is believed that
-	some of them bite.
-	-g                 Group option.
+      Caution: use of these options is at your own risk.  It is believed that
+      some of them bite.
+      -g                 Group option.
 
 .. _optparse-printing-version-string:
 
diff --git a/Doc/library/sched.rst b/Doc/library/sched.rst
index 121038d..2283077 100644
--- a/Doc/library/sched.rst
+++ b/Doc/library/sched.rst
@@ -58,7 +58,7 @@
     ...     print time.time()
     ...     Timer(5, print_time, ()).start()
     ...     Timer(10, print_time, ()).start()
-    ...     time.sleep(11)	# sleep while time-delay events execute
+    ...     time.sleep(11)  # sleep while time-delay events execute
     ...     print time.time()
     ...
     >>> print_some_times()
diff --git a/Doc/library/socket.rst b/Doc/library/socket.rst
index e8c2d53..4f2a32e 100644
--- a/Doc/library/socket.rst
+++ b/Doc/library/socket.rst
@@ -852,20 +852,21 @@
    HOST = None               # Symbolic name meaning all available interfaces
    PORT = 50007              # Arbitrary non-privileged port
    s = None
-   for res in socket.getaddrinfo(HOST, PORT, socket.AF_UNSPEC, socket.SOCK_STREAM, 0, socket.AI_PASSIVE):
+   for res in socket.getaddrinfo(HOST, PORT, socket.AF_UNSPEC,
+                                 socket.SOCK_STREAM, 0, socket.AI_PASSIVE):
        af, socktype, proto, canonname, sa = res
        try:
-   	s = socket.socket(af, socktype, proto)
+           s = socket.socket(af, socktype, proto)
        except socket.error, msg:
-   	s = None
-   	continue
+           s = None
+           continue
        try:
-   	s.bind(sa)
-   	s.listen(1)
+           s.bind(sa)
+           s.listen(1)
        except socket.error, msg:
-   	s.close()
-   	s = None
-   	continue
+           s.close()
+           s = None
+           continue
        break
    if s is None:
        print 'could not open socket'
@@ -890,16 +891,16 @@
    for res in socket.getaddrinfo(HOST, PORT, socket.AF_UNSPEC, socket.SOCK_STREAM):
        af, socktype, proto, canonname, sa = res
        try:
-   	s = socket.socket(af, socktype, proto)
+           s = socket.socket(af, socktype, proto)
        except socket.error, msg:
-   	s = None
-   	continue
+           s = None
+           continue
        try:
-   	s.connect(sa)
+           s.connect(sa)
        except socket.error, msg:
-   	s.close()
-   	s = None
-   	continue
+           s.close()
+           s = None
+           continue
        break
    if s is None:
        print 'could not open socket'
diff --git a/Doc/library/xmlrpclib.rst b/Doc/library/xmlrpclib.rst
index a227c47..039a8a8 100644
--- a/Doc/library/xmlrpclib.rst
+++ b/Doc/library/xmlrpclib.rst
@@ -560,8 +560,8 @@
            self.proxy = proxy
        def make_connection(self, host):
            self.realhost = host
-   	h = httplib.HTTP(self.proxy)
-   	return h
+           h = httplib.HTTP(self.proxy)
+           return h
        def send_request(self, connection, handler, request_body):
            connection.putrequest("POST", 'http://%s%s' % (self.realhost, handler))
        def send_host(self, connection, host):
diff --git a/Doc/license.rst b/Doc/license.rst
index 86e122c..278bb2d 100644
--- a/Doc/license.rst
+++ b/Doc/license.rst
@@ -453,7 +453,7 @@
 
      This code implements the MD5 Algorithm defined in RFC 1321, whose
      text is available at
-   	http://www.ietf.org/rfc/rfc1321.txt
+           http://www.ietf.org/rfc/rfc1321.txt
      The code is derived from the text of the RFC, including the test suite
      (section A.5) but excluding the rest of Appendix A.  It does not include
      any code or documentation that is identified in the RFC as being
@@ -464,12 +464,12 @@
      that follows (in reverse chronological order):
 
      2002-04-13 lpd Removed support for non-ANSI compilers; removed
-   	references to Ghostscript; clarified derivation from RFC 1321;
-   	now handles byte order either statically or dynamically.
+           references to Ghostscript; clarified derivation from RFC 1321;
+           now handles byte order either statically or dynamically.
      1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
      1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5);
-   	added conditionalization for C++ compilation from Martin
-   	Purschke <purschke@bnl.gov>.
+           added conditionalization for C++ compilation from Martin
+           Purschke <purschke@bnl.gov>.
      1999-05-03 lpd Original version.
 
 
diff --git a/Doc/tutorial/datastructures.rst b/Doc/tutorial/datastructures.rst
index f7e7243..2cc1e60 100644
--- a/Doc/tutorial/datastructures.rst
+++ b/Doc/tutorial/datastructures.rst
@@ -251,7 +251,7 @@
    []
    >>> [[x,x**2] for x in vec]
    [[2, 4], [4, 16], [6, 36]]
-   >>> [x, x**2 for x in vec]	# error - parens required for tuples
+   >>> [x, x**2 for x in vec]  # error - parens required for tuples
      File "<stdin>", line 1, in ?
        [x, x**2 for x in vec]
                   ^
diff --git a/Doc/tutorial/stdlib2.rst b/Doc/tutorial/stdlib2.rst
index abcf96a..8faa360 100644
--- a/Doc/tutorial/stdlib2.rst
+++ b/Doc/tutorial/stdlib2.rst
@@ -62,7 +62,7 @@
    >>> locale.format("%d", x, grouping=True)
    '1,234,567'
    >>> locale.format("%s%.*f", (conv['currency_symbol'],
-   ...	      conv['frac_digits'], x), grouping=True)
+   ...               conv['frac_digits'], x), grouping=True)
    '$1,234,567.80'
 
 
diff --git a/Doc/whatsnew/2.0.rst b/Doc/whatsnew/2.0.rst
index 75205d4..f5326d7 100644
--- a/Doc/whatsnew/2.0.rst
+++ b/Doc/whatsnew/2.0.rst
@@ -281,7 +281,7 @@
    # containing the substring S.
    sublist = filter( lambda s, substring=S:
                         string.find(s, substring) != -1,
-   	          L)
+                     L)
 
 Because of Python's scoping rules, a default argument is used so that the
 anonymous function created by the :keyword:`lambda` statement knows what
@@ -293,7 +293,7 @@
 
    [ expression for expr in sequence1
                 for expr2 in sequence2 ...
-   	     for exprN in sequenceN
+                for exprN in sequenceN
                 if condition ]
 
 The :keyword:`for`...\ :keyword:`in` clauses contain the sequences to be
@@ -368,7 +368,7 @@
        def __init__(self, value):
            self.value = value
        def __iadd__(self, increment):
-   	return Number( self.value + increment)
+           return Number( self.value + increment)
 
    n = Number(5)
    n += 3
@@ -852,13 +852,12 @@
    from distutils.core import setup, Extension
 
    expat_extension = Extension('xml.parsers.pyexpat',
-   	define_macros = [('XML_NS', None)],
-   	include_dirs = [ 'extensions/expat/xmltok',
-   	                 'extensions/expat/xmlparse' ],
-   	sources = [ 'extensions/pyexpat.c',
-   	            'extensions/expat/xmltok/xmltok.c',
-    		    'extensions/expat/xmltok/xmlrole.c',
-                     ]
+        define_macros = [('XML_NS', None)],
+        include_dirs = [ 'extensions/expat/xmltok',
+                         'extensions/expat/xmlparse' ],
+        sources = [ 'extensions/pyexpat.c',
+                    'extensions/expat/xmltok/xmltok.c',
+                    'extensions/expat/xmltok/xmlrole.c', ]
           )
    setup (name = "PyXML", version = "0.5.4",
           ext_modules =[ expat_extension ] )
diff --git a/Doc/whatsnew/2.2.rst b/Doc/whatsnew/2.2.rst
index 28ecb81..ec435f7 100644
--- a/Doc/whatsnew/2.2.rst
+++ b/Doc/whatsnew/2.2.rst
@@ -295,7 +295,7 @@
 
    class D (B,C):
        def save (self):
-   	# Call superclass .save()
+           # Call superclass .save()
            super(D, self).save()
            # Save D's private information here
            ...
diff --git a/Doc/whatsnew/2.4.rst b/Doc/whatsnew/2.4.rst
index e6dccc5..9e438ac 100644
--- a/Doc/whatsnew/2.4.rst
+++ b/Doc/whatsnew/2.4.rst
@@ -396,10 +396,10 @@
 different keyword arguments. ::
 
    class Popen(args, bufsize=0, executable=None,
-   	    stdin=None, stdout=None, stderr=None,
-   	    preexec_fn=None, close_fds=False, shell=False,
-   	    cwd=None, env=None, universal_newlines=False,
-   	    startupinfo=None, creationflags=0):
+               stdin=None, stdout=None, stderr=None,
+               preexec_fn=None, close_fds=False, shell=False,
+               cwd=None, env=None, universal_newlines=False,
+               startupinfo=None, creationflags=0):
 
 *args* is commonly a sequence of strings that will be the arguments to the
 program executed as the subprocess.  (If the *shell* argument is true, *args*
diff --git a/Doc/whatsnew/2.6.rst b/Doc/whatsnew/2.6.rst
index 8f0b2a4..457bef2 100644
--- a/Doc/whatsnew/2.6.rst
+++ b/Doc/whatsnew/2.6.rst
@@ -586,30 +586,30 @@
 
 
     def factorial(queue, N):
-	"Compute a factorial."
-	# If N is a multiple of 4, this function will take much longer.
-	if (N % 4) == 0:
-	    time.sleep(.05 * N/4)
+        "Compute a factorial."
+        # If N is a multiple of 4, this function will take much longer.
+        if (N % 4) == 0:
+            time.sleep(.05 * N/4)
 
-	# Calculate the result
-	fact = 1L
-	for i in range(1, N+1):
-	    fact = fact * i
+        # Calculate the result
+        fact = 1L
+        for i in range(1, N+1):
+            fact = fact * i
 
-	# Put the result on the queue
-	queue.put(fact)
+        # Put the result on the queue
+        queue.put(fact)
 
     if __name__ == '__main__':
-	queue = Queue()
+        queue = Queue()
 
-	N = 5
+        N = 5
 
-	p = Process(target=factorial, args=(queue, N))
-	p.start()
-	p.join()
+        p = Process(target=factorial, args=(queue, N))
+        p.start()
+        p.join()
 
-	result = queue.get()
-	print 'Factorial', N, '=', result
+        result = queue.get()
+        print 'Factorial', N, '=', result
 
 A :class:`Queue` is used to communicate the input parameter *N* and
 the result.  The :class:`Queue` object is stored in a global variable.
@@ -630,12 +630,12 @@
     from multiprocessing import Pool
 
     def factorial(N, dictionary):
-	"Compute a factorial."
-	...
+        "Compute a factorial."
+        ...
     p = Pool(5)
     result = p.map(factorial, range(1, 1000, 10))
     for v in result:
-	print v
+        print v
 
 This produces the following output::
 
@@ -1885,9 +1885,9 @@
      ('id', 'name', 'type', 'size')
 
      >>> var = var_type(1, 'frequency', 'int', 4)
-     >>> print var[0], var.id		# Equivalent
+     >>> print var[0], var.id    # Equivalent
      1 1
-     >>> print var[2], var.type          # Equivalent
+     >>> print var[2], var.type  # Equivalent
      int int
      >>> var._asdict()
      {'size': 4, 'type': 'int', 'id': 1, 'name': 'frequency'}
@@ -2046,8 +2046,8 @@
 
      >>> list(itertools.product([1,2,3], [4,5,6]))
      [(1, 4), (1, 5), (1, 6),
-	  (2, 4), (2, 5), (2, 6),
-	  (3, 4), (3, 5), (3, 6)]
+      (2, 4), (2, 5), (2, 6),
+      (3, 4), (3, 5), (3, 6)]
 
   The optional *repeat* keyword argument is used for taking the
   product of an iterable or a set of iterables with themselves,