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| author | Georg Brandl <georg@python.org> | 2007-09-04 07:15:32 (GMT) |
|---|---|---|
| committer | Georg Brandl <georg@python.org> | 2007-09-04 07:15:32 (GMT) |
| commit | 6911e3ce3f72af759908b869b73391ea00d328e2 (patch) | |
| tree | 5d4ff6070cb3f0f46f0a31ee4805b41053a06b48 | |
| parent | c9879246a2dd33a217960496fdf4606cb117c6a6 (diff) | |
| download | cpython-6911e3ce3f72af759908b869b73391ea00d328e2.zip cpython-6911e3ce3f72af759908b869b73391ea00d328e2.tar.gz cpython-6911e3ce3f72af759908b869b73391ea00d328e2.tar.bz2 | |
Convert all print statements in the docs.
71 files changed, 351 insertions, 388 deletions
diff --git a/Doc/c-api/abstract.rst b/Doc/c-api/abstract.rst index 7b5de86..34a0efd 100644 --- a/Doc/c-api/abstract.rst +++ b/Doc/c-api/abstract.rst @@ -143,8 +143,8 @@ Object Protocol Compute a string representation of object *o*. Returns the string representation on success, *NULL* on failure. This is the equivalent of the - Python expression ``str(o)``. Called by the :func:`str` built-in function and - by the :keyword:`print` statement. + Python expression ``str(o)``. Called by the :func:`str` built-in function + and, therefore, by the :func:`print` function. .. cfunction:: PyObject* PyObject_Unicode(PyObject *o) diff --git a/Doc/c-api/newtypes.rst b/Doc/c-api/newtypes.rst index 0fe1daa..f1ab34e 100644 --- a/Doc/c-api/newtypes.rst +++ b/Doc/c-api/newtypes.rst @@ -645,8 +645,8 @@ type objects) *must* have the :attr:`ob_size` field. The signature is the same as for :cfunc:`PyObject_Str`; it must return a string or a Unicode object. This function should return a "friendly" string - representation of the object, as this is the representation that will be used by - the print statement. + representation of the object, as this is the representation that will be used, + among other things, by the :func:`print` function. When this field is not set, :cfunc:`PyObject_Repr` is called to return a string representation. diff --git a/Doc/extending/embedding.rst b/Doc/extending/embedding.rst index b9a567c..a50c008 100644 --- a/Doc/extending/embedding.rst +++ b/Doc/extending/embedding.rst @@ -64,7 +64,7 @@ perform some operation on a file. :: { Py_Initialize(); PyRun_SimpleString("from time import time,ctime\n" - "print 'Today is',ctime(time())\n"); + "print('Today is', ctime(time()))\n"); Py_Finalize(); return 0; } @@ -141,7 +141,7 @@ array. If you compile and link this program (let's call the finished executable :program:`call`), and use it to execute a Python script, such as:: def multiply(a,b): - print "Will compute", a, "times", b + print("Will compute", a, "times", b) c = 0 for i in range(0, a): c = c + b @@ -234,7 +234,7 @@ These two lines initialize the ``numargs`` variable, and make the With these extensions, the Python script can do things like :: import emb - print "Number of arguments", emb.numargs() + print("Number of arguments", emb.numargs()) In a real application, the methods will expose an API of the application to Python. diff --git a/Doc/extending/newtypes.rst b/Doc/extending/newtypes.rst index c8e49fe..0c035ba 100644 --- a/Doc/extending/newtypes.rst +++ b/Doc/extending/newtypes.rst @@ -826,11 +826,11 @@ increases an internal counter. :: >>> import shoddy >>> s = shoddy.Shoddy(range(3)) >>> s.extend(s) - >>> print len(s) + >>> print(len(s)) 6 - >>> print s.increment() + >>> print(s.increment()) 1 - >>> print s.increment() + >>> print(s.increment()) 2 .. literalinclude:: ../includes/shoddy.c @@ -1063,34 +1063,6 @@ Here is a simple example:: obj->obj_UnderlyingDatatypePtr->size); } -The print function will be called whenever Python needs to "print" an instance -of the type. For example, if 'node' is an instance of type TreeNode, then the -print function is called when Python code calls:: - - print node - -There is a flags argument and one flag, :const:`Py_PRINT_RAW`, and it suggests -that you print without string quotes and possibly without interpreting escape -sequences. - -The print function receives a file object as an argument. You will likely want -to write to that file object. - -Here is a sample print function:: - - static int - newdatatype_print(newdatatypeobject *obj, FILE *fp, int flags) - { - if (flags & Py_PRINT_RAW) { - fprintf(fp, "<{newdatatype object--size: %d}>", - obj->obj_UnderlyingDatatypePtr->size); - } - else { - fprintf(fp, "\"<{newdatatype object--size: %d}>\"", - obj->obj_UnderlyingDatatypePtr->size); - } - return 0; - } Attribute Management diff --git a/Doc/howto/doanddont.rst b/Doc/howto/doanddont.rst index a322c53..07652bc 100644 --- a/Doc/howto/doanddont.rst +++ b/Doc/howto/doanddont.rst @@ -59,7 +59,7 @@ its least useful properties. Remember, you can never know for sure what names a module exports, so either take what you need --- ``from module import name1, name2``, or keep them in the -module and access on a per-need basis --- ``import module;print module.name``. +module and access on a per-need basis --- ``import module; print(module.name)``. When It Is Just Fine @@ -181,7 +181,7 @@ The following is a very popular anti-idiom :: def get_status(file): if not os.path.exists(file): - print "file not found" + print("file not found") sys.exit(1) return open(file).readline() @@ -199,7 +199,7 @@ Here is a better way to do it. :: try: return open(file).readline() except (IOError, OSError): - print "file not found" + print("file not found") sys.exit(1) In this version, \*either\* the file gets opened and the line is read (so it @@ -264,12 +264,13 @@ More useful functions in :mod:`os.path`: :func:`basename`, :func:`dirname` and There are also many useful builtin functions people seem not to be aware of for some reason: :func:`min` and :func:`max` can find the minimum/maximum of any sequence with comparable semantics, for example, yet many people write their own -:func:`max`/:func:`min`. Another highly useful function is :func:`reduce`. A -classical use of :func:`reduce` is something like :: +:func:`max`/:func:`min`. Another highly useful function is +:func:`functools.reduce`. A classical use of :func:`reduce` is something like +:: - import sys, operator + import sys, operator, functools nums = map(float, sys.argv[1:]) - print reduce(operator.add, nums)/len(nums) + print(functools.reduce(operator.add, nums) / len(nums)) This cute little script prints the average of all numbers given on the command line. The :func:`reduce` adds up all the numbers, and the rest is just some diff --git a/Doc/howto/functional.rst b/Doc/howto/functional.rst index bc12793..280749c 100644 --- a/Doc/howto/functional.rst +++ b/Doc/howto/functional.rst @@ -201,7 +201,7 @@ You can experiment with the iteration interface manually:: >>> L = [1,2,3] >>> it = iter(L) - >>> print it + >>> it <iterator object at 0x8116870> >>> it.next() 1 @@ -221,10 +221,10 @@ be an iterator or some object for which ``iter()`` can create an iterator. These two statements are equivalent:: for i in iter(obj): - print i + print(i) for i in obj: - print i + print(i) Iterators can be materialized as lists or tuples by using the :func:`list` or :func:`tuple` constructor functions:: @@ -274,7 +274,7 @@ dictionary's keys:: >>> m = {'Jan': 1, 'Feb': 2, 'Mar': 3, 'Apr': 4, 'May': 5, 'Jun': 6, ... 'Jul': 7, 'Aug': 8, 'Sep': 9, 'Oct': 10, 'Nov': 11, 'Dec': 12} >>> for key in m: - ... print key, m[key] + ... print(key, m[key]) Mar 3 Feb 2 Aug 8 @@ -316,7 +316,7 @@ elements:: S = set((2, 3, 5, 7, 11, 13)) for i in S: - print i + print(i) @@ -568,18 +568,18 @@ the internal counter. And here's an example of changing the counter: >>> it = counter(10) - >>> print it.next() + >>> it.next() 0 - >>> print it.next() + >>> it.next() 1 - >>> print it.send(8) + >>> it.send(8) 8 - >>> print it.next() + >>> it.next() 9 - >>> print it.next() + >>> it.next() Traceback (most recent call last): File ``t.py'', line 15, in ? - print it.next() + it.next() StopIteration Because ``yield`` will often be returning ``None``, you should always check for @@ -721,7 +721,7 @@ indexes at which certain conditions are met:: f = open('data.txt', 'r') for i, line in enumerate(f): if line.strip() == '': - print 'Blank line at line #%i' % i + print('Blank line at line #%i' % i) ``sorted(iterable, [cmp=None], [key=None], [reverse=False)`` collects all the elements of the iterable into a list, sorts the list, and returns the sorted @@ -1100,7 +1100,7 @@ Here's a small but realistic example:: def log (message, subsystem): "Write the contents of 'message' to the specified subsystem." - print '%s: %s' % (subsystem, message) + print('%s: %s' % (subsystem, message)) ... server_log = functools.partial(log, subsystem='server') @@ -1395,6 +1395,6 @@ features in Python 2.5. for elem in slice[:-1]: sys.stdout.write(str(elem)) sys.stdout.write(', ') - print elem[-1] + print(elem[-1]) diff --git a/Doc/howto/regex.rst b/Doc/howto/regex.rst index b200764..1f26687 100644 --- a/Doc/howto/regex.rst +++ b/Doc/howto/regex.rst @@ -1,5 +1,5 @@ **************************** - Regular Expression HOWTO + Regular Expression HOWTO **************************** :Author: A.M. Kuchling @@ -263,7 +263,7 @@ performing string substitutions. :: >>> import re >>> p = re.compile('ab*') - >>> print p + >>> p <re.RegexObject instance at 80b4150> :func:`re.compile` also accepts an optional *flags* argument, used to enable @@ -387,7 +387,7 @@ interpreter to print no output. You can explicitly print the result of :meth:`match` to make this clear. :: >>> p.match("") - >>> print p.match("") + >>> print(p.match("")) None Now, let's try it on a string that it should match, such as ``tempo``. In this @@ -395,7 +395,7 @@ case, :meth:`match` will return a :class:`MatchObject`, so you should store the result in a variable for later use. :: >>> m = p.match('tempo') - >>> print m + >>> m <_sre.SRE_Match object at 80c4f68> Now you can query the :class:`MatchObject` for information about the matching @@ -432,9 +432,9 @@ will always be zero. However, the :meth:`search` method of :class:`RegexObject` instances scans through the string, so the match may not start at zero in that case. :: - >>> print p.match('::: message') + >>> print(p.match('::: message')) None - >>> m = p.search('::: message') ; print m + >>> m = p.search('::: message') ; print(m) <re.MatchObject instance at 80c9650> >>> m.group() 'message' @@ -447,9 +447,9 @@ in a variable, and then check if it was ``None``. This usually looks like:: p = re.compile( ... ) m = p.match( 'string goes here' ) if m: - print 'Match found: ', m.group() + print('Match found: ', m.group()) else: - print 'No match' + print('No match') Two :class:`RegexObject` methods return all of the matches for a pattern. :meth:`findall` returns a list of matching strings:: @@ -466,7 +466,7 @@ instances as an iterator. [#]_ :: >>> iterator <callable-iterator object at 0x401833ac> >>> for match in iterator: - ... print match.span() + ... print(match.span()) ... (0, 2) (22, 24) @@ -483,7 +483,7 @@ take the same arguments as the corresponding :class:`RegexObject` method, with the RE string added as the first argument, and still return either ``None`` or a :class:`MatchObject` instance. :: - >>> print re.match(r'From\s+', 'Fromage amk') + >>> print(re.match(r'From\s+', 'Fromage amk')) None >>> re.match(r'From\s+', 'From amk Thu May 14 19:12:10 1998') <re.MatchObject instance at 80c5978> @@ -674,9 +674,9 @@ given location, they can obviously be matched an infinite number of times. For example, if you wish to match the word ``From`` only at the beginning of a line, the RE to use is ``^From``. :: - >>> print re.search('^From', 'From Here to Eternity') + >>> print(re.search('^From', 'From Here to Eternity')) <re.MatchObject instance at 80c1520> - >>> print re.search('^From', 'Reciting From Memory') + >>> print(re.search('^From', 'Reciting From Memory')) None .. % To match a literal \character{\^}, use \regexp{\e\^} or enclose it @@ -686,11 +686,11 @@ given location, they can obviously be matched an infinite number of times. Matches at the end of a line, which is defined as either the end of the string, or any location followed by a newline character. :: - >>> print re.search('}$', '{block}') + >>> print(re.search('}$', '{block}')) <re.MatchObject instance at 80adfa8> - >>> print re.search('}$', '{block} ') + >>> print(re.search('}$', '{block} ')) None - >>> print re.search('}$', '{block}\n') + >>> print(re.search('}$', '{block}\n')) <re.MatchObject instance at 80adfa8> To match a literal ``'$'``, use ``\$`` or enclose it inside a character class, @@ -717,11 +717,11 @@ given location, they can obviously be matched an infinite number of times. match when it's contained inside another word. :: >>> p = re.compile(r'\bclass\b') - >>> print p.search('no class at all') + >>> print(p.search('no class at all')) <re.MatchObject instance at 80c8f28> - >>> print p.search('the declassified algorithm') + >>> print(p.search('the declassified algorithm')) None - >>> print p.search('one subclass is') + >>> print(p.search('one subclass is')) None There are two subtleties you should remember when using this special sequence. @@ -733,9 +733,9 @@ given location, they can obviously be matched an infinite number of times. in front of the RE string. :: >>> p = re.compile('\bclass\b') - >>> print p.search('no class at all') + >>> print(p.search('no class at all')) None - >>> print p.search('\b' + 'class' + '\b') + >>> print(p.search('\b' + 'class' + '\b') ) <re.MatchObject instance at 80c3ee0> Second, inside a character class, where there's no use for this assertion, @@ -773,7 +773,7 @@ of a group with a repeating qualifier, such as ``*``, ``+``, ``?``, or ``ab``. :: >>> p = re.compile('(ab)*') - >>> print p.match('ababababab').span() + >>> print(p.match('ababababab').span()) (0, 10) Groups indicated with ``'('``, ``')'`` also capture the starting and ending @@ -1247,17 +1247,17 @@ It's important to keep this distinction in mind. Remember, :func:`match` will only report a successful match which will start at 0; if the match wouldn't start at zero, :func:`match` will *not* report it. :: - >>> print re.match('super', 'superstition').span() + >>> print(re.match('super', 'superstition').span()) (0, 5) - >>> print re.match('super', 'insuperable') + >>> print(re.match('super', 'insuperable')) None On the other hand, :func:`search` will scan forward through the string, reporting the first match it finds. :: - >>> print re.search('super', 'superstition').span() + >>> print(re.search('super', 'superstition').span()) (0, 5) - >>> print re.search('super', 'insuperable').span() + >>> print(re.search('super', 'insuperable').span()) (2, 7) Sometimes you'll be tempted to keep using :func:`re.match`, and just add ``.*`` @@ -1286,9 +1286,9 @@ doesn't work because of the greedy nature of ``.*``. :: >>> s = '<html><head><title>Title</title>' >>> len(s) 32 - >>> print re.match('<.*>', s).span() + >>> print(re.match('<.*>', s).span()) (0, 32) - >>> print re.match('<.*>', s).group() + >>> print(re.match('<.*>', s).group()) <html><head><title>Title</title> The RE matches the ``'<'`` in ``<html>``, and the ``.*`` consumes the rest of @@ -1304,7 +1304,7 @@ example, the ``'>'`` is tried immediately after the first ``'<'`` matches, and when it fails, the engine advances a character at a time, retrying the ``'>'`` at every step. This produces just the right result:: - >>> print re.match('<.*?>', s).group() + >>> print(re.match('<.*?>', s).group()) <html> (Note that parsing HTML or XML with regular expressions is painful. diff --git a/Doc/howto/unicode.rst b/Doc/howto/unicode.rst index 16bd5a8..8b52039 100644 --- a/Doc/howto/unicode.rst +++ b/Doc/howto/unicode.rst @@ -7,6 +7,12 @@ This HOWTO discusses Python's support for Unicode, and explains various problems that people commonly encounter when trying to work with Unicode. +.. XXX fix it +.. warning:: + + This HOWTO has not yet been updated for Python 3000's string object changes. + + Introduction to Unicode ======================= @@ -122,8 +128,8 @@ The first encoding you might think of is an array of 32-bit integers. In this representation, the string "Python" would look like this:: P y t h o n - 0x50 00 00 00 79 00 00 00 74 00 00 00 68 00 00 00 6f 00 00 00 6e 00 00 00 - 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 + 0x50 00 00 00 79 00 00 00 74 00 00 00 68 00 00 00 6f 00 00 00 6e 00 00 00 + 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 This representation is straightforward but using it presents a number of problems. @@ -181,7 +187,7 @@ UTF-8.) UTF-8 uses the following rules: between 128 and 255. 3. Code points >0x7ff are turned into three- or four-byte sequences, where each byte of the sequence is between 128 and 255. - + UTF-8 has several convenient properties: 1. It can handle any Unicode code point. @@ -256,7 +262,7 @@ characters greater than 127 will be treated as errors:: >>> unicode('abcdef' + chr(255)) Traceback (most recent call last): File "<stdin>", line 1, in ? - UnicodeDecodeError: 'ascii' codec can't decode byte 0xff in position 6: + UnicodeDecodeError: 'ascii' codec can't decode byte 0xff in position 6: ordinal not in range(128) The ``errors`` argument specifies the response when the input string can't be @@ -268,7 +274,7 @@ Unicode result). The following examples show the differences:: >>> unicode('\x80abc', errors='strict') Traceback (most recent call last): File "<stdin>", line 1, in ? - UnicodeDecodeError: 'ascii' codec can't decode byte 0x80 in position 0: + UnicodeDecodeError: 'ascii' codec can't decode byte 0x80 in position 0: ordinal not in range(128) >>> unicode('\x80abc', errors='replace') u'\ufffdabc' @@ -354,7 +360,7 @@ interprets the string using the given encoding:: >>> u2 = utf8_version.decode('utf-8') # Decode using UTF-8 >>> u == u2 # The two strings match True - + The low-level routines for registering and accessing the available encodings are found in the :mod:`codecs` module. However, the encoding and decoding functions returned by this module are usually more low-level than is comfortable, so I'm @@ -366,8 +372,8 @@ covered here. Consult the Python documentation to learn more about this module. The most commonly used part of the :mod:`codecs` module is the :func:`codecs.open` function which will be discussed in the section on input and output. - - + + Unicode Literals in Python Source Code -------------------------------------- @@ -385,10 +391,10 @@ arbitrary code point. Octal escapes can go up to U+01ff, which is octal 777. >>> s = u"a\xac\u1234\u20ac\U00008000" ^^^^ two-digit hex escape - ^^^^^^ four-digit Unicode escape + ^^^^^^ four-digit Unicode escape ^^^^^^^^^^ eight-digit Unicode escape - >>> for c in s: print ord(c), - ... + >>> for c in s: print(ord(c), end=" ") + ... 97 172 4660 8364 32768 Using escape sequences for code points greater than 127 is fine in small doses, @@ -408,10 +414,10 @@ either the first or second line of the source file:: #!/usr/bin/env python # -*- coding: latin-1 -*- - + u = u'abcdé' - print ord(u[-1]) - + print(ord(u[-1])) + The syntax is inspired by Emacs's notation for specifying variables local to a file. Emacs supports many different variables, but Python only supports 'coding'. The ``-*-`` symbols indicate that the comment is special; within @@ -426,15 +432,15 @@ encoding declaration:: #!/usr/bin/env python u = u'abcdé' - print ord(u[-1]) + print(ord(u[-1])) When you run it with Python 2.4, it will output the following warning:: amk:~$ python p263.py - sys:1: DeprecationWarning: Non-ASCII character '\xe9' - in file p263.py on line 2, but no encoding declared; + sys:1: DeprecationWarning: Non-ASCII character '\xe9' + in file p263.py on line 2, but no encoding declared; see http://www.python.org/peps/pep-0263.html for details - + Unicode Properties ------------------ @@ -450,15 +456,15 @@ The following program displays some information about several characters, and prints the numeric value of one particular character:: import unicodedata - + u = unichr(233) + unichr(0x0bf2) + unichr(3972) + unichr(6000) + unichr(13231) - + for i, c in enumerate(u): - print i, '%04x' % ord(c), unicodedata.category(c), - print unicodedata.name(c) - + print(i, '%04x' % ord(c), unicodedata.category(c), end=" ") + print(unicodedata.name(c)) + # Get numeric value of second character - print unicodedata.numeric(u[1]) + print(unicodedata.numeric(u[1])) When run, this prints:: @@ -545,7 +551,7 @@ Reading Unicode from a file is therefore simple:: import codecs f = codecs.open('unicode.rst', encoding='utf-8') for line in f: - print repr(line) + print(repr(line)) It's also possible to open files in update mode, allowing both reading and writing:: @@ -553,7 +559,7 @@ writing:: f = codecs.open('test', encoding='utf-8', mode='w+') f.write(u'\u4500 blah blah blah\n') f.seek(0) - print repr(f.readline()[:1]) + print(repr(f.readline()[:1])) f.close() Unicode character U+FEFF is used as a byte-order mark (BOM), and is often @@ -606,8 +612,8 @@ default filesystem encoding is UTF-8, running the following program:: f.close() import os - print os.listdir('.') - print os.listdir(u'.') + print(os.listdir('.')) + print(os.listdir(u'.')) will produce the following output:: @@ -619,7 +625,7 @@ The first list contains UTF-8-encoded filenames, and the second list contains the Unicode versions. - + Tips for Writing Unicode-aware Programs --------------------------------------- @@ -665,7 +671,7 @@ this code:: unicode_name = filename.decode(encoding) f = open(unicode_name, 'r') # ... return contents of file ... - + However, if an attacker could specify the ``'base64'`` encoding, they could pass ``'L2V0Yy9wYXNzd2Q='``, which is the base-64 encoded form of the string ``'/etc/passwd'``, to read a system file. The above code looks for ``'/'`` @@ -701,7 +707,7 @@ Version 1.02: posted August 16 2005. Corrects factual errors. .. comment Describe obscure -U switch somewhere? .. comment Describe use of codecs.StreamRecoder and StreamReaderWriter -.. comment +.. comment Original outline: - [ ] Unicode introduction diff --git a/Doc/howto/urllib2.rst b/Doc/howto/urllib2.rst index dc20b02..05588b9 100644 --- a/Doc/howto/urllib2.rst +++ b/Doc/howto/urllib2.rst @@ -134,7 +134,7 @@ This is done as follows:: >>> data['location'] = 'Northampton' >>> data['language'] = 'Python' >>> url_values = urllib.urlencode(data) - >>> print url_values + >>> print(url_values) name=Somebody+Here&language=Python&location=Northampton >>> url = 'http://www.example.com/example.cgi' >>> full_url = url + '?' + url_values @@ -202,7 +202,7 @@ e.g. :: >>> req = urllib2.Request('http://www.pretend_server.org') >>> try: urllib2.urlopen(req) >>> except URLError, e: - >>> print e.reason + >>> print(e.reason) >>> (4, 'getaddrinfo failed') @@ -311,8 +311,8 @@ geturl, and info, methods. :: >>> try: >>> urllib2.urlopen(req) >>> except URLError, e: - >>> print e.code - >>> print e.read() + >>> print(e.code) + >>> print(e.read()) >>> 404 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" @@ -339,11 +339,11 @@ Number 1 try: response = urlopen(req) except HTTPError, e: - print 'The server couldn\'t fulfill the request.' - print 'Error code: ', e.code + print('The server couldn\'t fulfill the request.') + print('Error code: ', e.code) except URLError, e: - print 'We failed to reach a server.' - print 'Reason: ', e.reason + print('We failed to reach a server.') + print('Reason: ', e.reason) else: # everything is fine @@ -364,11 +364,11 @@ Number 2 response = urlopen(req) except URLError, e: if hasattr(e, 'reason'): - print 'We failed to reach a server.' - print 'Reason: ', e.reason + print('We failed to reach a server.') + print('Reason: ', e.reason) elif hasattr(e, 'code'): - print 'The server couldn\'t fulfill the request.' - print 'Error code: ', e.code + print('The server couldn\'t fulfill the request.') + print('Error code: ', e.code) else: # everything is fine diff --git a/Doc/library/_winreg.rst b/Doc/library/_winreg.rst index fc185a2..033446f 100644 --- a/Doc/library/_winreg.rst +++ b/Doc/library/_winreg.rst @@ -383,7 +383,7 @@ an integer, however, use of the handle object is encouraged. Handle objects provide semantics for :meth:`__bool__` - thus :: if handle: - print "Yes" + print("Yes") will print ``Yes`` if the handle is currently valid (has not been closed or detached). diff --git a/Doc/library/anydbm.rst b/Doc/library/anydbm.rst index 413b7de..f35a416 100644 --- a/Doc/library/anydbm.rst +++ b/Doc/library/anydbm.rst @@ -64,7 +64,7 @@ then prints out the contents of the database:: # Loop through contents. Other dictionary methods # such as .keys(), .values() also work. for k, v in db.iteritems(): - print k, '\t', v + print(k, '\t', v) # Storing a non-string key or value will raise an exception (most # likely a TypeError). diff --git a/Doc/library/asyncore.rst b/Doc/library/asyncore.rst index 7f80dd3..db98195 100644 --- a/Doc/library/asyncore.rst +++ b/Doc/library/asyncore.rst @@ -254,7 +254,7 @@ implement its socket handling:: self.close() def handle_read(self): - print self.recv(8192) + print(self.recv(8192)) def writable(self): return (len(self.buffer) > 0) diff --git a/Doc/library/atexit.rst b/Doc/library/atexit.rst index cb2199a..f6c76de 100644 --- a/Doc/library/atexit.rst +++ b/Doc/library/atexit.rst @@ -80,7 +80,7 @@ Positional and keyword arguments may also be passed to :func:`register` to be passed along to the registered function when it is called:: def goodbye(name, adjective): - print 'Goodbye, %s, it was %s to meet you.' % (name, adjective) + print('Goodbye, %s, it was %s to meet you.' % (name, adjective)) import atexit atexit.register(goodbye, 'Donny', 'nice') @@ -94,7 +94,7 @@ Usage as a decorator:: @atexit.register def goodbye(): - print "You are now leaving the Python sector." + print("You are now leaving the Python sector.") This obviously only works with functions that don't take arguments. diff --git a/Doc/library/binascii.rst b/Doc/library/binascii.rst index ffea232..2ea0e50 100644 --- a/Doc/library/binascii.rst +++ b/Doc/library/binascii.rst @@ -110,11 +110,11 @@ The :mod:`binascii` module defines the following functions: use as a checksum algorithm, it is not suitable for use as a general hash algorithm. Use as follows:: - print binascii.crc32("hello world") + print(binascii.crc32("hello world")) # Or, in two pieces: crc = binascii.crc32("hello") crc = binascii.crc32(" world", crc) - print crc + print(crc) .. function:: b2a_hex(data) diff --git a/Doc/library/cgi.rst b/Doc/library/cgi.rst index d2b88aa..84262f5 100644 --- a/Doc/library/cgi.rst +++ b/Doc/library/cgi.rst @@ -46,16 +46,16 @@ line. The first section contains a number of headers, telling the client what kind of data is following. Python code to generate a minimal header section looks like this:: - print "Content-Type: text/html" # HTML is following - print # blank line, end of headers + print("Content-Type: text/html") # HTML is following + print() # blank line, end of headers The second section is usually HTML, which allows the client software to display nicely formatted text with header, in-line images, etc. Here's Python code that prints a simple piece of HTML:: - print "<TITLE>CGI script output</TITLE>" - print "<H1>This is my first CGI script</H1>" - print "Hello, world!" + print("<TITLE>CGI script output</TITLE>") + print("<H1>This is my first CGI script</H1>") + print("Hello, world!") .. _using-the-cgi-module: @@ -104,11 +104,11 @@ string:: form = cgi.FieldStorage() if not ("name" in form and "addr" in form): - print "<H1>Error</H1>" - print "Please fill in the name and addr fields." + print("<H1>Error</H1>") + print("Please fill in the name and addr fields.") return - print "<p>name:", form["name"].value - print "<p>addr:", form["addr"].value + print("<p>name:", form["name"].value) + print("<p>addr:", form["addr"].value) ...further form processing here... Here the fields, accessed through ``form[key]``, are themselves instances of @@ -505,8 +505,8 @@ you can use an even more robust approach (which only uses built-in modules):: import sys sys.stderr = sys.stdout - print "Content-Type: text/plain" - print + print("Content-Type: text/plain") + print() ...your code here... This relies on the Python interpreter to print the traceback. The content type diff --git a/Doc/library/collections.rst b/Doc/library/collections.rst index 7a850b6..50ddc0f 100644 --- a/Doc/library/collections.rst +++ b/Doc/library/collections.rst @@ -105,7 +105,7 @@ Example:: >>> from collections import deque >>> d = deque('ghi') # make a new deque with three items >>> for elem in d: # iterate over the deque's elements - ... print elem.upper() + ... print(elem.upper()) G H I @@ -194,7 +194,7 @@ the tasklist if the input stream is not exhausted:: ... pending.append(task) ... >>> for value in roundrobin('abc', 'd', 'efgh'): - ... print value + ... print(value) a d @@ -221,7 +221,7 @@ two adjacent nodes into one by grouping them in a list:: ... d.append(pair) ... return list(d) ... - >>> print maketree('abcdefgh') + >>> print(maketree('abcdefgh')) [[[['a', 'b'], ['c', 'd']], [['e', 'f'], ['g', 'h']]]] @@ -386,14 +386,14 @@ Setting the :attr:`default_factory` to :class:`set` makes the import csv EmployeeRecord = NamedTuple('EmployeeRecord', 'name age title department paygrade') for record in starmap(EmployeeRecord, csv.reader(open("employees.csv", "rb"))): - print record + print(record) To cast an individual record stored as :class:`list`, :class:`tuple`, or some other iterable type, use the star-operator [#]_ to unpack the values:: >>> Color = NamedTuple('Color', 'name code') >>> m = dict(red=1, green=2, blue=3) - >>> print Color(*m.popitem()) + >>> print(Color(*m.popitem())) Color(name='blue', code=3) .. rubric:: Footnotes diff --git a/Doc/library/contextlib.rst b/Doc/library/contextlib.rst index 070dd88..decac44 100644 --- a/Doc/library/contextlib.rst +++ b/Doc/library/contextlib.rst @@ -26,12 +26,12 @@ Functions provided: @contextmanager def tag(name): - print "<%s>" % name + print("<%s>" % name) yield - print "</%s>" % name + print("</%s>" % name) >>> with tag("h1"): - ... print "foo" + ... print("foo") ... <h1> foo @@ -104,7 +104,7 @@ Functions provided: with closing(urllib.urlopen('http://www.python.org')) as page: for line in page: - print line + print(line) without needing to explicitly close ``page``. Even if an error occurs, ``page.close()`` will be called when the :keyword:`with` block is exited. diff --git a/Doc/library/cookie.rst b/Doc/library/cookie.rst index bd7cc1e..84ac72a 100644 --- a/Doc/library/cookie.rst +++ b/Doc/library/cookie.rst @@ -214,32 +214,32 @@ The following example demonstrates how to use the :mod:`Cookie` module. :: >>> C = Cookie.SmartCookie() >>> C["fig"] = "newton" >>> C["sugar"] = "wafer" - >>> print C # generate HTTP headers + >>> print(C) # generate HTTP headers Set-Cookie: sugar=wafer Set-Cookie: fig=newton - >>> print C.output() # same thing + >>> print(C.output()) # same thing Set-Cookie: sugar=wafer Set-Cookie: fig=newton >>> C = Cookie.SmartCookie() >>> C["rocky"] = "road" >>> C["rocky"]["path"] = "/cookie" - >>> print C.output(header="Cookie:") + >>> print(C.output(header="Cookie:")) Cookie: rocky=road; Path=/cookie - >>> print C.output(attrs=[], header="Cookie:") + >>> print(C.output(attrs=[], header="Cookie:")) Cookie: rocky=road >>> C = Cookie.SmartCookie() >>> C.load("chips=ahoy; vienna=finger") # load from a string (HTTP header) - >>> print C + >>> print(C) Set-Cookie: vienna=finger Set-Cookie: chips=ahoy >>> C = Cookie.SmartCookie() >>> C.load('keebler="E=everybody; L=\\"Loves\\"; fudge=\\012;";') - >>> print C + >>> print(C) Set-Cookie: keebler="E=everybody; L=\"Loves\"; fudge=\012;" >>> C = Cookie.SmartCookie() >>> C["oreo"] = "doublestuff" >>> C["oreo"]["path"] = "/" - >>> print C + >>> print(C) Set-Cookie: oreo=doublestuff; Path=/ >>> C = Cookie.SmartCookie() >>> C["twix"] = "none for you" @@ -252,7 +252,7 @@ The following example demonstrates how to use the :mod:`Cookie` module. :: '7' >>> C["string"].value 'seven' - >>> print C + >>> print(C) Set-Cookie: number=7 Set-Cookie: string=seven >>> C = Cookie.SerialCookie() @@ -262,7 +262,7 @@ The following example demonstrates how to use the :mod:`Cookie` module. :: 7 >>> C["string"].value 'seven' - >>> print C + >>> print(C) Set-Cookie: number="I7\012." Set-Cookie: string="S'seven'\012p1\012." >>> C = Cookie.SmartCookie() @@ -272,7 +272,7 @@ The following example demonstrates how to use the :mod:`Cookie` module. :: 7 >>> C["string"].value 'seven' - >>> print C + >>> print(C) Set-Cookie: number="I7\012." Set-Cookie: string=seven diff --git a/Doc/library/csv.rst b/Doc/library/csv.rst index 46302ef..11df7c2 100644 --- a/Doc/library/csv.rst +++ b/Doc/library/csv.rst @@ -390,14 +390,14 @@ The simplest example of reading a CSV file:: import csv reader = csv.reader(open("some.csv", "rb")) for row in reader: - print row + print(row) Reading a file with an alternate format:: import csv reader = csv.reader(open("passwd", "rb"), delimiter=':', quoting=csv.QUOTE_NONE) for row in reader: - print row + print(row) The corresponding simplest possible writing example is:: @@ -420,7 +420,7 @@ A slightly more advanced use of the reader --- catching and reporting errors:: reader = csv.reader(open(filename, "rb")) try: for row in reader: - print row + print(row) except csv.Error as e: sys.exit('file %s, line %d: %s' % (filename, reader.line_num, e)) @@ -429,7 +429,7 @@ done:: import csv for row in csv.reader(['one,two,three']): - print row + print(row) The :mod:`csv` module doesn't directly support reading and writing Unicode, but it is 8-bit-clean save for some problems with ASCII NUL characters. So you can diff --git a/Doc/library/ctypes.rst b/Doc/library/ctypes.rst index ac259e8..e9acedf 100644 --- a/Doc/library/ctypes.rst +++ b/Doc/library/ctypes.rst @@ -48,9 +48,9 @@ library containing most standard C functions, and uses the cdecl calling 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 >>> @@ -82,9 +82,9 @@ Functions are accessed as attributes of dll objects:: >>> 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__ @@ -145,9 +145,9 @@ handle. 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 >>> @@ -269,12 +269,12 @@ the correct type and value:: Since these types are mutable, their value can also be changed afterwards:: >>> i = c_int(42) - >>> print i + >>> print(i) c_long(42) - >>> print i.value + >>> print(i.value) 42 >>> i.value = -99 - >>> print i.value + >>> print(i.value) -99 >>> @@ -285,12 +285,12 @@ strings are immutable):: >>> s = "Hello, World" >>> c_s = c_char_p(s) - >>> print c_s + >>> print(c_s) c_char_p('Hello, World') >>> c_s.value = "Hi, there" - >>> print c_s + >>> print(c_s) c_char_p('Hi, there') - >>> print s # first string is unchanged + >>> print(s) # first string is unchanged Hello, World >>> @@ -303,18 +303,18 @@ property:: >>> from ctypes import * >>> p = create_string_buffer(3) # create a 3 byte buffer, initialized to NUL bytes - >>> print sizeof(p), repr(p.raw) + >>> print(sizeof(p), repr(p.raw)) 3 '\x00\x00\x00' >>> p = create_string_buffer("Hello") # create a buffer containing a NUL terminated string - >>> print sizeof(p), repr(p.raw) + >>> print(sizeof(p), repr(p.raw)) 6 'Hello\x00' - >>> print repr(p.value) + >>> print(repr(p.value)) 'Hello' >>> p = create_string_buffer("Hello", 10) # create a 10 byte buffer - >>> print sizeof(p), repr(p.raw) + >>> print(sizeof(p), repr(p.raw)) 10 'Hello\x00\x00\x00\x00\x00' >>> p.value = "Hi" - >>> print sizeof(p), repr(p.raw) + >>> print(sizeof(p), repr(p.raw)) 10 'Hi\x00lo\x00\x00\x00\x00\x00' >>> @@ -444,7 +444,7 @@ a string pointer and a char, and returns a pointer to a string:: >>> strchr.restype = c_char_p # c_char_p is a pointer to a string >>> strchr("abcdef", ord("d")) 'def' - >>> print strchr("abcdef", ord("x")) + >>> print(strchr("abcdef", ord("x"))) None >>> @@ -460,7 +460,7 @@ single character Python string into a C char:: Traceback (most recent call last): File "<stdin>", line 1, in ? ArgumentError: argument 2: exceptions.TypeError: one character string expected - >>> print strchr("abcdef", "x") + >>> print(strchr("abcdef", "x")) None >>> strchr("abcdef", "d") 'def' @@ -516,12 +516,12 @@ object in Python itself:: >>> i = c_int() >>> f = c_float() >>> s = create_string_buffer('\000' * 32) - >>> print i.value, f.value, repr(s.value) + >>> print(i.value, f.value, repr(s.value)) 0 0.0 '' >>> libc.sscanf("1 3.14 Hello", "%d %f %s", ... byref(i), byref(f), s) 3 - >>> print i.value, f.value, repr(s.value) + >>> print(i.value, f.value, repr(s.value)) 1 3.1400001049 'Hello' >>> @@ -549,10 +549,10 @@ constructor:: ... ("y", c_int)] ... >>> point = POINT(10, 20) - >>> print point.x, point.y + >>> print(point.x, point.y) 10 20 >>> point = POINT(y=5) - >>> print point.x, point.y + >>> print(point.x, point.y) 0 5 >>> POINT(1, 2, 3) Traceback (most recent call last): @@ -571,9 +571,9 @@ Here is a RECT structure which contains two POINTs named ``upperleft`` and ... ("lowerright", POINT)] ... >>> rc = RECT(point) - >>> print rc.upperleft.x, rc.upperleft.y + >>> print(rc.upperleft.x, rc.upperleft.y) 0 5 - >>> print rc.lowerright.x, rc.lowerright.y + >>> print(rc.lowerright.x, rc.lowerright.y) 0 0 >>> @@ -585,9 +585,9 @@ Nested structures can also be initialized in the constructor in several ways:: Fields descriptors can be retrieved from the *class*, they are useful for debugging because they can provide useful information:: - >>> print POINT.x + >>> print(POINT.x) <Field type=c_long, ofs=0, size=4> - >>> print POINT.y + >>> print(POINT.y) <Field type=c_long, ofs=4, size=4> >>> @@ -622,9 +622,9 @@ item in the :attr:`_fields_` tuples:: ... _fields_ = [("first_16", c_int, 16), ... ("second_16", c_int, 16)] ... - >>> print Int.first_16 + >>> print(Int.first_16) <Field type=c_long, ofs=0:0, bits=16> - >>> print Int.second_16 + >>> print(Int.second_16) <Field type=c_long, ofs=0:16, bits=16> >>> @@ -653,7 +653,7 @@ POINTs among other stuff:: ... ("b", c_float), ... ("point_array", POINT * 4)] >>> - >>> print len(MyStruct().point_array) + >>> print(len(MyStruct().point_array)) 4 >>> @@ -661,7 +661,7 @@ Instances are created in the usual way, by calling the class:: arr = TenPointsArrayType() for pt in arr: - print pt.x, pt.y + print(pt.x, pt.y) The above code print a series of ``0 0`` lines, because the array contents is initialized to zeros. @@ -671,9 +671,9 @@ Initializers of the correct type can also be specified:: >>> from ctypes import * >>> TenIntegers = c_int * 10 >>> ii = TenIntegers(1, 2, 3, 4, 5, 6, 7, 8, 9, 10) - >>> print ii + >>> print(ii) <c_long_Array_10 object at 0x...> - >>> for i in ii: print i, + >>> for i in ii: print(i, end=" ") ... 1 2 3 4 5 6 7 8 9 10 >>> @@ -725,10 +725,10 @@ Pointer instances can also be indexed with integers:: Assigning to an integer index changes the pointed to value:: - >>> print i + >>> print(i) c_long(99) >>> pi[0] = 22 - >>> print i + >>> print(i) c_long(22) >>> @@ -758,7 +758,7 @@ Calling the pointer type without an argument creates a ``NULL`` pointer. ``NULL`` pointers have a ``False`` boolean value:: >>> null_ptr = POINTER(c_int)() - >>> print bool(null_ptr) + >>> print(bool(null_ptr)) False >>> @@ -797,7 +797,7 @@ pointer types. So, for ``POINTER(c_int)``, ctypes accepts an array of c_int:: >>> bar.values = (c_int * 3)(1, 2, 3) >>> bar.count = 3 >>> for i in range(bar.count): - ... print bar.values[i] + ... print(bar.values[i]) ... 1 2 @@ -841,7 +841,7 @@ structure:: >>> bar = Bar() >>> bar.values = cast((c_byte * 4)(), POINTER(c_int)) - >>> print bar.values[0] + >>> print(bar.values[0]) 0 >>> @@ -898,7 +898,7 @@ other, and finally follow the pointer chain a few times:: >>> c2.next = pointer(c1) >>> p = c1 >>> for i in range(8): - ... print p.name, + ... print(p.name, end=" ") ... p = p.next[0] ... foo bar foo bar foo bar foo bar @@ -952,7 +952,7 @@ For the first implementation of the callback function, we simply print the arguments we get, and return 0 (incremental development ;-):: >>> def py_cmp_func(a, b): - ... print "py_cmp_func", a, b + ... print("py_cmp_func", a, b) ... return 0 ... >>> @@ -980,7 +980,7 @@ And we're ready to go:: We know how to access the contents of a pointer, so lets redefine our callback:: >>> def py_cmp_func(a, b): - ... print "py_cmp_func", a[0], b[0] + ... print("py_cmp_func", a[0], b[0]) ... return 0 ... >>> cmp_func = CMPFUNC(py_cmp_func) @@ -1016,7 +1016,7 @@ Ah, we're nearly done! The last step is to actually compare the two items and return a useful result:: >>> def py_cmp_func(a, b): - ... print "py_cmp_func", a[0], b[0] + ... print("py_cmp_func", a[0], b[0]) ... return a[0] - b[0] ... >>> @@ -1051,7 +1051,7 @@ more comparisons than the linux version! As we can easily check, our array is sorted now:: - >>> for i in ia: print i, + >>> for i in ia: print(i, end=" ") ... 1 5 7 33 99 >>> @@ -1078,7 +1078,7 @@ the type. *pythonapi* is a predefined symbol giving access to the Python C api:: >>> opt_flag = c_int.in_dll(pythonapi, "Py_OptimizeFlag") - >>> print opt_flag + >>> print(opt_flag) c_long(0) >>> @@ -1121,7 +1121,7 @@ access violation or whatever, so it's better to break out of the loop when we hit the NULL entry:: >>> for item in table: - ... print item.name, item.size + ... print(item.name, item.size) ... if item.name is None: ... break ... @@ -1156,11 +1156,11 @@ Consider the following example:: >>> p1 = POINT(1, 2) >>> p2 = POINT(3, 4) >>> rc = RECT(p1, p2) - >>> print rc.a.x, rc.a.y, rc.b.x, rc.b.y + >>> print(rc.a.x, rc.a.y, rc.b.x, rc.b.y) 1 2 3 4 >>> # now swap the two points >>> rc.a, rc.b = rc.b, rc.a - >>> print rc.a.x, rc.a.y, rc.b.x, rc.b.y + >>> print(rc.a.x, rc.a.y, rc.b.x, rc.b.y) 3 4 3 4 >>> @@ -1214,7 +1214,7 @@ smaller than the natural memory block specified by the objects type, a ``ValueError`` is raised if this is tried:: >>> short_array = (c_short * 4)() - >>> print sizeof(short_array) + >>> print(sizeof(short_array)) 8 >>> resize(short_array, 4) Traceback (most recent call last): diff --git a/Doc/library/dbhash.rst b/Doc/library/dbhash.rst index b5c9590..aadb14f 100644 --- a/Doc/library/dbhash.rst +++ b/Doc/library/dbhash.rst @@ -96,9 +96,9 @@ available in addition to the standard methods. prints every key in the database ``db``, without having to create a list in memory that contains them all:: - print db.first() + print(db.first()) for i in range(1, len(db)): - print db.next() + print(db.next()) .. method:: dbhash.previous() diff --git a/Doc/library/decimal.rst b/Doc/library/decimal.rst index 498c2cc..444b20a 100644 --- a/Doc/library/decimal.rst +++ b/Doc/library/decimal.rst @@ -1052,7 +1052,7 @@ to work with the :class:`Decimal` class:: def pi(): """Compute Pi to the current precision. - >>> print pi() + >>> print(pi()) 3.141592653589793238462643383 """ @@ -1071,13 +1071,13 @@ to work with the :class:`Decimal` class:: def exp(x): """Return e raised to the power of x. Result type matches input type. - >>> print exp(Decimal(1)) + >>> print(exp(Decimal(1))) 2.718281828459045235360287471 - >>> print exp(Decimal(2)) + >>> print(exp(Decimal(2))) 7.389056098930650227230427461 - >>> print exp(2.0) + >>> print(exp(2.0)) 7.38905609893 - >>> print exp(2+0j) + >>> print(exp(2+0j)) (7.38905609893+0j) """ @@ -1095,11 +1095,11 @@ to work with the :class:`Decimal` class:: def cos(x): """Return the cosine of x as measured in radians. - >>> print cos(Decimal('0.5')) + >>> print(cos(Decimal('0.5'))) 0.8775825618903727161162815826 - >>> print cos(0.5) + >>> print(cos(0.5)) 0.87758256189 - >>> print cos(0.5+0j) + >>> print(cos(0.5+0j)) (0.87758256189+0j) """ @@ -1118,11 +1118,11 @@ to work with the :class:`Decimal` class:: def sin(x): """Return the sine of x as measured in radians. - >>> print sin(Decimal('0.5')) + >>> print(sin(Decimal('0.5'))) 0.4794255386042030002732879352 - >>> print sin(0.5) + >>> print(sin(0.5)) 0.479425538604 - >>> print sin(0.5+0j) + >>> print(sin(0.5+0j)) (0.479425538604+0j) """ diff --git a/Doc/library/difflib.rst b/Doc/library/difflib.rst index 8d130a1..ee973bc 100644 --- a/Doc/library/difflib.rst +++ b/Doc/library/difflib.rst @@ -194,7 +194,7 @@ >>> diff = ndiff('one\ntwo\nthree\n'.splitlines(1), ... 'ore\ntree\nemu\n'.splitlines(1)) - >>> print ''.join(diff), + >>> print(''.join(diff), end="") - one ? ^ + ore @@ -219,11 +219,11 @@ >>> diff = ndiff('one\ntwo\nthree\n'.splitlines(1), ... 'ore\ntree\nemu\n'.splitlines(1)) >>> diff = list(diff) # materialize the generated delta into a list - >>> print ''.join(restore(diff, 1)), + >>> print(''.join(restore(diff, 1)), end="") one two three - >>> print ''.join(restore(diff, 2)), + >>> print(''.join(restore(diff, 2)), end="") ore tree emu @@ -412,8 +412,8 @@ use :meth:`set_seq2` to set the commonly used sequence once and call >>> b = "abycdf" >>> s = SequenceMatcher(None, a, b) >>> for tag, i1, i2, j1, j2 in s.get_opcodes(): - ... print ("%7s a[%d:%d] (%s) b[%d:%d] (%s)" % - ... (tag, i1, i2, a[i1:i2], j1, j2, b[j1:j2])) + ... print(("%7s a[%d:%d] (%s) b[%d:%d] (%s)" % + ... (tag, i1, i2, a[i1:i2], j1, j2, b[j1:j2]))) delete a[0:1] (q) b[0:0] () equal a[1:3] (ab) b[0:2] (ab) replace a[3:4] (x) b[2:3] (y) @@ -488,14 +488,14 @@ This example compares two strings, considering blanks to be "junk:" :: sequences. As a rule of thumb, a :meth:`ratio` value over 0.6 means the sequences are close matches:: - >>> print round(s.ratio(), 3) + >>> print(round(s.ratio(), 3)) 0.866 If you're only interested in where the sequences match, :meth:`get_matching_blocks` is handy:: >>> for block in s.get_matching_blocks(): - ... print "a[%d] and b[%d] match for %d elements" % block + ... print("a[%d] and b[%d] match for %d elements" % block) a[0] and b[0] match for 8 elements a[8] and b[17] match for 6 elements a[14] and b[23] match for 15 elements @@ -509,7 +509,7 @@ If you want to know how to change the first sequence into the second, use :meth:`get_opcodes`:: >>> for opcode in s.get_opcodes(): - ... print "%6s a[%d:%d] b[%d:%d]" % opcode + ... print("%6s a[%d:%d] b[%d:%d]" % opcode) equal a[0:8] b[0:8] insert a[8:8] b[8:17] equal a[8:14] b[17:23] diff --git a/Doc/library/doctest.rst b/Doc/library/doctest.rst index a448880..df1f6e3 100644 --- a/Doc/library/doctest.rst +++ b/Doc/library/doctest.rst @@ -309,11 +309,11 @@ your own :class:`DocTestParser` class. >>> x 12 >>> if x == 13: - ... print "yes" + ... print("yes") ... else: - ... print "no" - ... print "NO" - ... print "NO!!!" + ... print("no") + ... print("NO") + ... print("NO!!!") ... no NO @@ -340,7 +340,7 @@ The fine print: >>> def f(x): ... r'''Backslashes in a raw docstring: m\n''' - >>> print f.__doc__ + >>> print(f.__doc__) Backslashes in a raw docstring: m\n Otherwise, the backslash will be interpreted as part of the string. For example, @@ -349,7 +349,7 @@ The fine print: >>> def f(x): ... '''Backslashes in a raw docstring: m\\n''' - >>> print f.__doc__ + >>> print(f.__doc__) Backslashes in a raw docstring: m\n * The starting column doesn't matter:: @@ -639,7 +639,7 @@ example. Use ``+`` to enable the named behavior, or ``-`` to disable it. For example, this test passes:: - >>> print range(20) #doctest: +NORMALIZE_WHITESPACE + >>> print(range(20)) #doctest: +NORMALIZE_WHITESPACE [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19] @@ -648,18 +648,18 @@ two blanks before the single-digit list elements, and because the actual output is on a single line. This test also passes, and also requires a directive to do so:: - >>> print range(20) # doctest: +ELLIPSIS + >>> print(range(20)) # doctest: +ELLIPSIS [0, 1, ..., 18, 19] Multiple directives can be used on a single physical line, separated by commas:: - >>> print range(20) # doctest: +ELLIPSIS, +NORMALIZE_WHITESPACE + >>> print(range(20)) # doctest: +ELLIPSIS, +NORMALIZE_WHITESPACE [0, 1, ..., 18, 19] If multiple directive comments are used for a single example, then they are combined:: - >>> print range(20) # doctest: +ELLIPSIS + >>> print(range(20)) # doctest: +ELLIPSIS ... # doctest: +NORMALIZE_WHITESPACE [0, 1, ..., 18, 19] @@ -667,7 +667,7 @@ As the previous example shows, you can add ``...`` lines to your example containing only directives. This can be useful when an example is too long for a directive to comfortably fit on the same line:: - >>> print range(5) + range(10,20) + range(30,40) + range(50,60) + >>> print(range(5) + range(10,20) + range(30,40) + range(50,60)) ... # doctest: +ELLIPSIS [0, ..., 4, 10, ..., 19, 30, ..., 39, 50, ..., 59] @@ -746,9 +746,9 @@ and C libraries vary widely in quality here. :: >>> 1./7 # risky 0.14285714285714285 - >>> print 1./7 # safer + >>> print(1./7) # safer 0.142857142857 - >>> print round(1./7, 6) # much safer + >>> print(round(1./7, 6)) # much safer 0.142857 Numbers of the form ``I/2.**J`` are safe across all platforms, and I often @@ -1518,7 +1518,7 @@ Doctest provides several mechanisms for debugging doctest examples: >>> def f(x): ... g(x*2) >>> def g(x): - ... print x+3 + ... print(x+3) ... import pdb; pdb.set_trace() >>> f(3) 9 @@ -1533,10 +1533,10 @@ Doctest provides several mechanisms for debugging doctest examples: -> import pdb; pdb.set_trace() (Pdb) list 1 def g(x): - 2 print x+3 + 2 print(x+3) 3 -> import pdb; pdb.set_trace() [EOF] - (Pdb) print x + (Pdb) p x 6 (Pdb) step --Return-- @@ -1546,7 +1546,7 @@ Doctest provides several mechanisms for debugging doctest examples: 1 def f(x): 2 -> g(x*2) [EOF] - (Pdb) print x + (Pdb) p x 3 (Pdb) step --Return-- @@ -1571,14 +1571,14 @@ code under the debugger: returned as a string. For example, :: import doctest - print doctest.script_from_examples(r""" + print(doctest.script_from_examples(r""" Set x and y to 1 and 2. >>> x, y = 1, 2 Print their sum: - >>> print x+y + >>> print(x+y) 3 - """) + """)) displays:: @@ -1586,7 +1586,7 @@ code under the debugger: x, y = 1, 2 # # Print their sum: - print x+y + print(x+y) # Expected: ## 3 @@ -1607,7 +1607,7 @@ code under the debugger: contains a top-level function :func:`f`, then :: import a, doctest - print doctest.testsource(a, "a.f") + print(doctest.testsource(a, "a.f")) prints a script version of function :func:`f`'s docstring, with doctests converted to code, and the rest placed in comments. diff --git a/Doc/library/email.generator.rst b/Doc/library/email.generator.rst index c12dc2f..6fc8ebe 100644 --- a/Doc/library/email.generator.rst +++ b/Doc/library/email.generator.rst @@ -27,7 +27,7 @@ Here are the public methods of the :class:`Generator` class, imported from the The constructor for the :class:`Generator` class takes a file-like object called *outfp* for an argument. *outfp* must support the :meth:`write` method and be - usable as the output file in a Python extended print statement. + usable as the output file for the :func:`print` function. Optional *mangle_from_* is a flag that, when ``True``, puts a ``>`` character in front of any line in the body that starts exactly as ``From``, i.e. ``From`` @@ -72,7 +72,7 @@ The other public :class:`Generator` methods are: Write the string *s* to the underlying file object, i.e. *outfp* passed to :class:`Generator`'s constructor. This provides just enough file-like API for - :class:`Generator` instances to be used in extended print statements. + :class:`Generator` instances to be used in the :func:`print` function. As a convenience, see the methods :meth:`Message.as_string` and ``str(aMessage)``, a.k.a. :meth:`Message.__str__`, which simplify the generation diff --git a/Doc/library/email.header.rst b/Doc/library/email.header.rst index fb2496a..c426c95 100644 --- a/Doc/library/email.header.rst +++ b/Doc/library/email.header.rst @@ -31,7 +31,7 @@ example:: >>> msg = Message() >>> h = Header('p\xf6stal', 'iso-8859-1') >>> msg['Subject'] = h - >>> print msg.as_string() + >>> print(msg.as_string()) Subject: =?iso-8859-1?q?p=F6stal?= diff --git a/Doc/library/email.iterators.rst b/Doc/library/email.iterators.rst index aa70141..f7ca9e4 100644 --- a/Doc/library/email.iterators.rst +++ b/Doc/library/email.iterators.rst @@ -60,6 +60,6 @@ The following function has been added as a useful debugging tool. It should text/plain text/plain - Optional *fp* is a file-like object to print the output to. It must be suitable - for Python's extended print statement. *level* is used internally. + Optional *fp* is a file-like object to print the output to. It must be + suitable for Python's :func:`print` function. *level* is used internally. diff --git a/Doc/library/email.message.rst b/Doc/library/email.message.rst index e494a71..7f3cf6f 100644 --- a/Doc/library/email.message.rst +++ b/Doc/library/email.message.rst @@ -167,7 +167,7 @@ included in the mapping interface. the ``in`` operator, e.g.:: if 'message-id' in myMessage: - print 'Message-ID:', myMessage['message-id'] + print('Message-ID:', myMessage['message-id']) .. method:: Message.__getitem__(name) @@ -458,7 +458,7 @@ Here are some additional useful methods: structure:: >>> for part in msg.walk(): - ... print part.get_content_type() + ... print(part.get_content_type()) multipart/report text/plain message/delivery-status diff --git a/Doc/library/fnmatch.rst b/Doc/library/fnmatch.rst index 6ce5a1c..a75ca7c 100644 --- a/Doc/library/fnmatch.rst +++ b/Doc/library/fnmatch.rst @@ -51,7 +51,7 @@ patterns. for file in os.listdir('.'): if fnmatch.fnmatch(file, '*.txt'): - print file + print(file) .. function:: fnmatchcase(filename, pattern) @@ -78,7 +78,7 @@ patterns. >>> regex '.*\\.txt$' >>> reobj = re.compile(regex) - >>> print reobj.match('foobar.txt') + >>> print(reobj.match('foobar.txt')) <_sre.SRE_Match object at 0x...> diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst index ff16536..056e2d5 100644 --- a/Doc/library/functions.rst +++ b/Doc/library/functions.rst @@ -325,7 +325,7 @@ available. They are listed here in alphabetical order. ``(1, seq[1])``, ``(2, seq[2])``, .... For example:: >>> for i, season in enumerate(['Spring', 'Summer', 'Fall', 'Winter')]: - >>> print i, season + >>> print(i, season) 0 Spring 1 Summer 2 Fall @@ -350,7 +350,7 @@ available. They are listed here in alphabetical order. the evaluated expression. Syntax errors are reported as exceptions. Example:: >>> x = 1 - >>> print eval('x+1') + >>> eval('x+1') 2 This function can also be used to execute arbitrary code objects (such as those diff --git a/Doc/library/functools.rst b/Doc/library/functools.rst index a25fde9..a3d3729 100644 --- a/Doc/library/functools.rst +++ b/Doc/library/functools.rst @@ -92,14 +92,14 @@ The :mod:`functools` module defines the following functions: >>> def my_decorator(f): ... @wraps(f) ... def wrapper(*args, **kwds): - ... print 'Calling decorated function' + ... print('Calling decorated function') ... return f(*args, **kwds) ... return wrapper ... >>> @my_decorator ... def example(): ... """Docstring""" - ... print 'Called example function' + ... print('Called example function') ... >>> example() Calling decorated function diff --git a/Doc/library/gdbm.rst b/Doc/library/gdbm.rst index ce27f6c..f69e667 100644 --- a/Doc/library/gdbm.rst +++ b/Doc/library/gdbm.rst @@ -93,7 +93,7 @@ methods: k = db.firstkey() while k != None: - print k + print(k) k = db.nextkey(k) diff --git a/Doc/library/getopt.rst b/Doc/library/getopt.rst index 7ead8ea..b7220a5 100644 --- a/Doc/library/getopt.rst +++ b/Doc/library/getopt.rst @@ -112,7 +112,7 @@ In a script, typical usage is something like this:: opts, args = getopt.getopt(sys.argv[1:], "ho:v", ["help", "output="]) except getopt.GetoptError as err: # print help information and exit: - print str(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/gettext.rst b/Doc/library/gettext.rst index af82f96..1940ec9 100644 --- a/Doc/library/gettext.rst +++ b/Doc/library/gettext.rst @@ -126,7 +126,7 @@ Here's an example of typical usage for this API:: gettext.textdomain('myapplication') _ = gettext.gettext # ... - print _('This is a translatable string.') + print(_('This is a translatable string.')) Class-based API @@ -201,7 +201,7 @@ the built-in namespace as the function :func:`_`. candidates for translation, by wrapping them in a call to the :func:`_` function, like this:: - print _('This string will be translated.') + print(_('This string will be translated.')) For convenience, you want the :func:`_` function to be installed in Python's builtin namespace, so it is easily accessible in all modules of your @@ -446,7 +446,7 @@ version has a slightly different API. Its documented usage was:: import gettext cat = gettext.Catalog(domain, localedir) _ = cat.gettext - print _('hello world') + print(_('hello world')) For compatibility with this older module, the function :func:`Catalog` is an alias for the :func:`translation` function described above. @@ -604,7 +604,7 @@ translation until later. A classic example is:: ] # ... for a in animals: - print a + print(a) Here, you want to mark the strings in the ``animals`` list as being translatable, but you don't actually want to translate them until they are @@ -625,7 +625,7 @@ Here is one way you can handle this situation:: # ... for a in animals: - print _(a) + print(_(a)) This works because the dummy definition of :func:`_` simply returns the string unchanged. And this dummy definition will temporarily override any definition @@ -649,7 +649,7 @@ Another way to handle this is with the following example:: # ... for a in animals: - print _(a) + print(_(a)) In this case, you are marking translatable strings with the function :func:`N_`, [#]_ which won't conflict with any definition of :func:`_`. However, you will diff --git a/Doc/library/heapq.rst b/Doc/library/heapq.rst index af10019..1cd71ba 100644 --- a/Doc/library/heapq.rst +++ b/Doc/library/heapq.rst @@ -77,10 +77,10 @@ Example of use:: >>> while heap: ... ordered.append(heappop(heap)) ... - >>> print ordered + >>> ordered [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] >>> data.sort() - >>> print data == ordered + >>> data == ordered True >>> diff --git a/Doc/library/htmlparser.rst b/Doc/library/htmlparser.rst index 5f481d8..5cfe04e 100644 --- a/Doc/library/htmlparser.rst +++ b/Doc/library/htmlparser.rst @@ -171,8 +171,8 @@ As a basic example, below is a very basic HTML parser that uses the class MyHTMLParser(HTMLParser): def handle_starttag(self, tag, attrs): - print "Encountered the beginning of a %s tag" % tag + print("Encountered the beginning of a %s tag" % tag) def handle_endtag(self, tag): - print "Encountered the end of a %s tag" % tag + print("Encountered the end of a %s tag" % tag) diff --git a/Doc/library/httplib.rst b/Doc/library/httplib.rst index badffb2..03fe681 100644 --- a/Doc/library/httplib.rst +++ b/Doc/library/httplib.rst @@ -475,12 +475,12 @@ Here is an example session that uses the ``GET`` method:: >>> conn = httplib.HTTPConnection("www.python.org") >>> conn.request("GET", "/index.html") >>> r1 = conn.getresponse() - >>> print r1.status, r1.reason + >>> print(r1.status, r1.reason) 200 OK >>> data1 = r1.read() >>> conn.request("GET", "/parrot.spam") >>> r2 = conn.getresponse() - >>> print r2.status, r2.reason + >>> print(r2.status, r2.reason) 404 Not Found >>> data2 = r2.read() >>> conn.close() @@ -494,7 +494,7 @@ Here is an example session that shows how to ``POST`` requests:: >>> conn = httplib.HTTPConnection("musi-cal.mojam.com:80") >>> conn.request("POST", "/cgi-bin/query", params, headers) >>> response = conn.getresponse() - >>> print response.status, response.reason + >>> print(response.status, response.reason) 200 OK >>> data = response.read() >>> conn.close() diff --git a/Doc/library/imaplib.rst b/Doc/library/imaplib.rst index 977df13..dab22e0 100644 --- a/Doc/library/imaplib.rst +++ b/Doc/library/imaplib.rst @@ -511,7 +511,7 @@ retrieves and prints all messages:: typ, data = M.search(None, 'ALL') for num in data[0].split(): typ, data = M.fetch(num, '(RFC822)') - print 'Message %s\n%s\n' % (num, data[0][1]) + print('Message %s\n%s\n' % (num, data[0][1])) M.close() M.logout() diff --git a/Doc/library/itertools.rst b/Doc/library/itertools.rst index d7a7668..d6e3291 100644 --- a/Doc/library/itertools.rst +++ b/Doc/library/itertools.rst @@ -385,7 +385,7 @@ can be combined. :: >>> amounts = [120.15, 764.05, 823.14] >>> for checknum, amount in izip(count(1200), amounts): - ... print 'Check %d is for $%.2f' % (checknum, amount) + ... print('Check %d is for $%.2f' % (checknum, amount)) ... Check 1200 is for $120.15 Check 1201 is for $764.05 @@ -393,7 +393,7 @@ can be combined. :: >>> import operator >>> for cube in imap(operator.pow, range(1,5), repeat(3)): - ... print cube + ... print(cube) ... 1 8 @@ -403,7 +403,7 @@ can be combined. :: >>> reportlines = ['EuroPython', 'Roster', '', 'alex', '', 'laura', ... '', 'martin', '', 'walter', '', 'mark'] >>> for name in islice(reportlines, 3, None, 2): - ... print name.title() + ... print(name.title()) ... Alex Laura @@ -416,7 +416,7 @@ can be combined. :: >>> d = dict(a=1, b=2, c=1, d=2, e=1, f=2, g=3) >>> di = sorted(d.iteritems(), key=itemgetter(1)) >>> for k, g in groupby(di, key=itemgetter(1)): - ... print k, map(itemgetter(0), g) + ... print(k, map(itemgetter(0), g)) ... 1 ['a', 'c', 'e'] 2 ['b', 'd', 'f'] @@ -427,7 +427,7 @@ can be combined. :: # same group. >>> data = [ 1, 4,5,6, 10, 15,16,17,18, 22, 25,26,27,28] >>> for k, g in groupby(enumerate(data), lambda t:t[0]-t[1]): - ... print map(operator.itemgetter(1), g) + ... print(map(operator.itemgetter(1), g)) ... [1] [4, 5, 6] diff --git a/Doc/library/logging.rst b/Doc/library/logging.rst index 1dac8b6..fb4bc4c 100644 --- a/Doc/library/logging.rst +++ b/Doc/library/logging.rst @@ -841,7 +841,7 @@ module. Here is a basic working example:: logging.basicConfig( format="%(relativeCreated)5d %(name)-15s %(levelname)-8s %(message)s") tcpserver = LogRecordSocketReceiver() - print "About to start TCP server..." + print("About to start TCP server...") tcpserver.serve_until_stopped() if __name__ == "__main__": diff --git a/Doc/library/macosa.rst b/Doc/library/macosa.rst index 67475ed..4e0b3aa 100644 --- a/Doc/library/macosa.rst +++ b/Doc/library/macosa.rst @@ -31,7 +31,7 @@ In Python, the following code fragment will do the same:: import Finder f = Finder.Finder() - print f.get(f.window(1).name) + print(f.get(f.window(1).name)) As distributed the Python library includes packages that implement the standard suites, plus packages that interface to a small number of common applications. diff --git a/Doc/library/mailbox.rst b/Doc/library/mailbox.rst index cfd1ebe..fc0ce8b 100644 --- a/Doc/library/mailbox.rst +++ b/Doc/library/mailbox.rst @@ -1620,7 +1620,7 @@ interesting:: for message in mailbox.mbox('~/mbox'): subject = message['subject'] # Could possibly be None. if subject and 'python' in subject.lower(): - print subject + print(subject) To copy all mail from a Babyl mailbox to an MH mailbox, converting all of the format-specific information that can be converted:: diff --git a/Doc/library/nntplib.rst b/Doc/library/nntplib.rst index ef5a6e9..c3de3d7 100644 --- a/Doc/library/nntplib.rst +++ b/Doc/library/nntplib.rst @@ -20,10 +20,10 @@ about a newsgroup and print the subjects of the last 10 articles:: >>> s = NNTP('news.cwi.nl') >>> resp, count, first, last, name = s.group('comp.lang.python') - >>> print 'Group', name, 'has', count, 'articles, range', first, 'to', last + >>> print('Group', name, 'has', count, 'articles, range', first, 'to', last) Group comp.lang.python has 59 articles, range 3742 to 3803 >>> resp, subs = s.xhdr('subject', first + '-' + last) - >>> for id, sub in subs[-10:]: print id, sub + >>> for id, sub in subs[-10:]: print(id, sub) ... 3792 Re: Removing elements from a list while iterating... 3793 Re: Who likes Info files? diff --git a/Doc/library/optparse.rst b/Doc/library/optparse.rst index bfc55f9..8809c59 100644 --- a/Doc/library/optparse.rst +++ b/Doc/library/optparse.rst @@ -348,7 +348,7 @@ right up against the option: since ``"-n42"`` (one argument) is equivalent to ``"-n 42"`` (two arguments), the code :: (options, args) = parser.parse_args(["-n42"]) - print options.num + print(options.num) will print ``"42"``. @@ -646,7 +646,7 @@ Here's what :mod:`optparse`\ -based scripts usually look like:: if len(args) != 1: parser.error("incorrect number of arguments") if options.verbose: - print "reading %s..." % options.filename + print("reading %s..." % options.filename) [...] if __name__ == "__main__": diff --git a/Doc/library/os.rst b/Doc/library/os.rst index 0ad8fba..d62896b 100644 --- a/Doc/library/os.rst +++ b/Doc/library/os.rst @@ -1215,9 +1215,9 @@ Files and Directories import os from os.path import join, getsize for root, dirs, files in os.walk('python/Lib/email'): - print root, "consumes", - print sum(getsize(join(root, name)) for name in files), - print "bytes in", len(files), "non-directory files" + print(root, "consumes", end=" ") + print(sum(getsize(join(root, name)) for name in files), end=" ") + print("bytes in", len(files), "non-directory files") if 'CVS' in dirs: dirs.remove('CVS') # don't visit CVS directories diff --git a/Doc/library/pickle.rst b/Doc/library/pickle.rst index 844e9c4..dace18a 100644 --- a/Doc/library/pickle.rst +++ b/Doc/library/pickle.rst @@ -574,11 +574,11 @@ Here's a silly example that *might* shed more light:: return 'My name is integer %d' % self.x i = Integer(7) - print i + print(i) p.dump(i) datastream = src.getvalue() - print repr(datastream) + print(repr(datastream)) dst = StringIO(datastream) up = pickle.Unpickler(dst) @@ -597,7 +597,7 @@ Here's a silly example that *might* shed more light:: up.persistent_load = persistent_load j = up.load() - print j + print(j) In the :mod:`cPickle` module, the unpickler's :attr:`persistent_load` attribute can also be set to a Python list, in which case, when the unpickler reaches a diff --git a/Doc/library/poplib.rst b/Doc/library/poplib.rst index e9466b7..b462ec5 100644 --- a/Doc/library/poplib.rst +++ b/Doc/library/poplib.rst @@ -191,7 +191,7 @@ retrieves and prints all messages:: numMessages = len(M.list()[1]) for i in range(numMessages): for j in M.retr(i+1)[1]: - print j + print(j) At the end of the module, there is a test section that contains a more extensive example of usage. diff --git a/Doc/library/pprint.rst b/Doc/library/pprint.rst index 3703c1c..d00caba 100644 --- a/Doc/library/pprint.rst +++ b/Doc/library/pprint.rst @@ -85,9 +85,10 @@ The :class:`PrettyPrinter` class supports several derivative functions: .. function:: pprint(object[, stream[, indent[, width[, depth]]]]) Prints the formatted representation of *object* on *stream*, followed by a - newline. If *stream* is omitted, ``sys.stdout`` is used. This may be used in - the interactive interpreter instead of a :keyword:`print` statement for - inspecting values. *indent*, *width* and *depth* will be passed to the + newline. If *stream* is omitted, ``sys.stdout`` is used. This may be used + in the interactive interpreter instead of the :func:`print` function for + inspecting values (you can even reassign ``print = pprint.pprint`` for use + within a scope). *indent*, *width* and *depth* will be passed to the :class:`PrettyPrinter` constructor as formatting parameters. :: >>> stuff = sys.path[:] diff --git a/Doc/library/profile.rst b/Doc/library/profile.rst index 4fbcf77..0cbbd86 100644 --- a/Doc/library/profile.rst +++ b/Doc/library/profile.rst @@ -577,7 +577,7 @@ discussion in section Limitations above). :: import profile pr = profile.Profile() for i in range(5): - print pr.calibrate(10000) + print(pr.calibrate(10000)) The method executes the number of Python calls given by the argument, directly and again under the profiler, measuring the time for both. It then computes the diff --git a/Doc/library/pyexpat.rst b/Doc/library/pyexpat.rst index cfee364..fcb7705 100644 --- a/Doc/library/pyexpat.rst +++ b/Doc/library/pyexpat.rst @@ -494,11 +494,11 @@ arguments. :: # 3 handler functions def start_element(name, attrs): - print 'Start element:', name, attrs + print('Start element:', name, attrs) def end_element(name): - print 'End element:', name + print('End element:', name) def char_data(data): - print 'Character data:', repr(data) + print('Character data:', repr(data)) p = xml.parsers.expat.ParserCreate() diff --git a/Doc/library/repr.rst b/Doc/library/repr.rst index ae4ce65..0ad08c6 100644 --- a/Doc/library/repr.rst +++ b/Doc/library/repr.rst @@ -129,5 +129,5 @@ for file objects could be added:: return `obj` aRepr = MyRepr() - print aRepr.repr(sys.stdin) # prints '<stdin>' + print(aRepr.repr(sys.stdin)) # prints '<stdin>' diff --git a/Doc/library/rlcompleter.rst b/Doc/library/rlcompleter.rst index b882cb0..402a120 100644 --- a/Doc/library/rlcompleter.rst +++ b/Doc/library/rlcompleter.rst @@ -33,7 +33,7 @@ automatic :kbd:`Tab` completion:: try: import readline except ImportError: - print "Module readline not available." + print("Module readline not available.") else: import rlcompleter readline.parse_and_bind("tab: complete") diff --git a/Doc/library/sched.rst b/Doc/library/sched.rst index bf3efbf..c262a8d 100644 --- a/Doc/library/sched.rst +++ b/Doc/library/sched.rst @@ -30,14 +30,14 @@ Example:: >>> import sched, time >>> s=sched.scheduler(time.time, time.sleep) - >>> def print_time(): print "From print_time", time.time() + >>> def print_time(): print("From print_time", time.time()) ... >>> def print_some_times(): - ... print time.time() + ... print(time.time()) ... s.enter(5, 1, print_time, ()) ... s.enter(10, 1, print_time, ()) ... s.run() - ... print time.time() + ... print(time.time()) ... >>> print_some_times() 930343690.257 diff --git a/Doc/library/signal.rst b/Doc/library/signal.rst index 94f305c..d3c498d 100644 --- a/Doc/library/signal.rst +++ b/Doc/library/signal.rst @@ -143,7 +143,7 @@ be sent, and the handler raises an exception. :: import signal, os def handler(signum, frame): - print 'Signal handler called with signal', signum + print('Signal handler called with signal', signum) raise IOError("Couldn't open device!") # Set the signal handler and a 5-second alarm diff --git a/Doc/library/simplexmlrpcserver.rst b/Doc/library/simplexmlrpcserver.rst index ec80843..2288907 100644 --- a/Doc/library/simplexmlrpcserver.rst +++ b/Doc/library/simplexmlrpcserver.rst @@ -143,12 +143,12 @@ server:: import xmlrpclib s = xmlrpclib.Server('http://localhost:8000') - print s.pow(2,3) # Returns 2**3 = 8 - print s.add(2,3) # Returns 5 - print s.div(5,2) # Returns 5//2 = 2 + print(s.pow(2,3)) # Returns 2**3 = 8 + print(s.add(2,3)) # Returns 5 + print(s.div(5,2)) # Returns 5//2 = 2 # Print list of available methods - print s.system.listMethods() + print(s.system.listMethods()) CGIXMLRPCRequestHandler diff --git a/Doc/library/smtplib.rst b/Doc/library/smtplib.rst index 61b90a8..3173f35 100644 --- a/Doc/library/smtplib.rst +++ b/Doc/library/smtplib.rst @@ -317,7 +317,7 @@ example doesn't do any processing of the :rfc:`822` headers. In particular, the fromaddr = prompt("From: ") toaddrs = prompt("To: ").split() - print "Enter message, end with ^D (Unix) or ^Z (Windows):" + print("Enter message, end with ^D (Unix) or ^Z (Windows):") # Add the From: and To: headers at the start! msg = ("From: %s\r\nTo: %s\r\n\r\n" @@ -331,7 +331,7 @@ example doesn't do any processing of the :rfc:`822` headers. In particular, the break msg = msg + line - print "Message length is " + repr(len(msg)) + print("Message length is", len(msg)) server = smtplib.SMTP('localhost') server.set_debuglevel(1) diff --git a/Doc/library/socket.rst b/Doc/library/socket.rst index f4265b4..a445b54 100644 --- a/Doc/library/socket.rst +++ b/Doc/library/socket.rst @@ -730,7 +730,7 @@ The first two examples support IPv4 only. :: s.bind((HOST, PORT)) s.listen(1) conn, addr = s.accept() - print 'Connected by', addr + print('Connected by', addr) while 1: data = conn.recv(1024) if not data: break @@ -749,7 +749,7 @@ The first two examples support IPv4 only. :: s.send('Hello, world') data = s.recv(1024) s.close() - print 'Received', repr(data) + print('Received', repr(data)) The next two examples are identical to the above two, but support both IPv4 and IPv6. The server side will listen to the first address family available (it @@ -781,10 +781,10 @@ sends traffic to the first one connected successfully. :: continue break if s is None: - print 'could not open socket' + print('could not open socket') sys.exit(1) conn, addr = s.accept() - print 'Connected by', addr + print('Connected by', addr) while 1: data = conn.recv(1024) if not data: break @@ -815,10 +815,10 @@ sends traffic to the first one connected successfully. :: continue break if s is None: - print 'could not open socket' + print('could not open socket') sys.exit(1) s.send('Hello, world') data = s.recv(1024) s.close() - print 'Received', repr(data) + print('Received', repr(data)) diff --git a/Doc/library/sqlite3.rst b/Doc/library/sqlite3.rst index b12184c..514c71e 100644 --- a/Doc/library/sqlite3.rst +++ b/Doc/library/sqlite3.rst @@ -79,7 +79,7 @@ This example uses the iterator form:: >>> c = conn.cursor() >>> c.execute('select * from stocks order by price') >>> for row in c: - ... print row + ... print(row) ... (u'2006-01-05', u'BUY', u'RHAT', 100, 35.140000000000001) (u'2006-03-28', u'BUY', u'IBM', 1000, 45.0) diff --git a/Doc/library/ssl.rst b/Doc/library/ssl.rst index 55ff7cd..5072caf 100644 --- a/Doc/library/ssl.rst +++ b/Doc/library/ssl.rst @@ -297,8 +297,8 @@ sends some bytes, and reads part of the response:: ssl_sock.connect(('www.verisign.com', 443)) - print repr(ssl_sock.getpeername()) - print pprint.pformat(ssl_sock.getpeercert()) + print(repr(ssl_sock.getpeername())) + pprint.pprint(ssl_sock.getpeercert()) # Set a simple HTTP request -- use httplib in actual code. ssl_sock.write("""GET / HTTP/1.0\r diff --git a/Doc/library/stdtypes.rst b/Doc/library/stdtypes.rst index 3e049b2..17962c2 100644 --- a/Doc/library/stdtypes.rst +++ b/Doc/library/stdtypes.rst @@ -22,8 +22,6 @@ interpreter. The principal built-in types are numerics, sequences, mappings, files, classes, instances and exceptions. -.. index:: statement: print - Some operations are supported by several object types; in particular, practically all objects can be compared, tested for truth value, and converted to a string (with the :func:`repr` function or the slightly different @@ -1976,7 +1974,7 @@ Files have the following methods: A file object is its own iterator, for example ``iter(f)`` returns *f* (unless *f* is closed). When a file is used as an iterator, typically in a - :keyword:`for` loop (for example, ``for line in f: print line``), the + :keyword:`for` loop (for example, ``for line in f: print(line)``), the :meth:`__next__` method is called repeatedly. This method returns the next input line, or raises :exc:`StopIteration` when EOF is hit when the file is open for reading (behavior is undefined when the file is open for writing). In order @@ -2133,23 +2131,6 @@ the particular object. mode the value of this attribute will be ``None``. -.. attribute:: file.softspace - - Boolean that indicates whether a space character needs to be printed before - another value when using the :keyword:`print` statement. Classes that are trying - to simulate a file object should also have a writable :attr:`softspace` - attribute, which should be initialized to zero. This will be automatic for most - classes implemented in Python (care may be needed for objects that override - attribute access); types implemented in C will have to provide a writable - :attr:`softspace` attribute. - - .. note:: - - This attribute is not used to control the :keyword:`print` statement, but to - allow the implementation of :keyword:`print` to keep track of its internal - state. - - .. _typecontextmanager: Context Manager Types diff --git a/Doc/library/sys.rst b/Doc/library/sys.rst index c2a0a6e..6f1aaff 100644 --- a/Doc/library/sys.rst +++ b/Doc/library/sys.rst @@ -495,7 +495,7 @@ always available. File objects corresponding to the interpreter's standard input, output and error streams. ``stdin`` is used for all interpreter input except for scripts. - ``stdout`` is used for the output of :keyword:`print` and expression statements. + ``stdout`` is used for the output of :func:`print` and expression statements. The interpreter's own prompts and (almost all of) its error messages go to ``stderr``. ``stdout`` and ``stderr`` needn't be built-in file objects: any object is acceptable as long as it has a :meth:`write` method that takes a diff --git a/Doc/library/tabnanny.rst b/Doc/library/tabnanny.rst index 7632b02..4402e78 100644 --- a/Doc/library/tabnanny.rst +++ b/Doc/library/tabnanny.rst @@ -26,9 +26,9 @@ described below. If *file_or_dir* is a directory and not a symbolic link, then recursively descend the directory tree named by *file_or_dir*, checking all :file:`.py` - files along the way. If *file_or_dir* is an ordinary Python source file, it is - checked for whitespace related problems. The diagnostic messages are written to - standard output using the print statement. + files along the way. If *file_or_dir* is an ordinary Python source file, it + is checked for whitespace related problems. The diagnostic messages are + written to standard output using the :func:`print` function. .. data:: verbose diff --git a/Doc/library/tokenize.rst b/Doc/library/tokenize.rst index 61b8497..0359f84 100644 --- a/Doc/library/tokenize.rst +++ b/Doc/library/tokenize.rst @@ -90,9 +90,9 @@ objects:: """Substitute Decimals for floats in a string of statements. >>> from decimal import Decimal - >>> s = 'print +21.3e-5*-.1234/81.7' + >>> s = 'print(+21.3e-5*-.1234/81.7)' >>> decistmt(s) - "print +Decimal ('21.3e-5')*-Decimal ('.1234')/Decimal ('81.7')" + "print(+Decimal ('21.3e-5')*-Decimal ('.1234')/Decimal ('81.7'))" >>> exec(s) -3.21716034272e-007 diff --git a/Doc/reference/compound_stmts.rst b/Doc/reference/compound_stmts.rst index 045231b..bd55bc9 100644 --- a/Doc/reference/compound_stmts.rst +++ b/Doc/reference/compound_stmts.rst @@ -32,13 +32,13 @@ form of suite can contain nested compound statements; the following is illegal, mostly because it wouldn't be clear to which :keyword:`if` clause a following :keyword:`else` clause would belong: :: - if test1: if test2: print x + if test1: if test2: print(x) Also note that the semicolon binds tighter than the colon in this context, so -that in the following example, either all or none of the :keyword:`print` -statements are executed:: +that in the following example, either all or none of the :func:`print` calls are +executed:: - if x < y < z: print x; print y; print z + if x < y < z: print(x); print(y); print(z) Summarizing: diff --git a/Doc/reference/expressions.rst b/Doc/reference/expressions.rst index 6f7e13f..0994ea8 100644 --- a/Doc/reference/expressions.rst +++ b/Doc/reference/expressions.rst @@ -376,7 +376,7 @@ Here is a simple example that demonstrates the behavior of generators and generator functions:: >>> def echo(value=None): - ... print "Execution starts when 'next()' is called for the first time." + ... print("Execution starts when 'next()' is called for the first time.") ... try: ... while True: ... try: @@ -387,15 +387,15 @@ generator functions:: ... except Exception, e: ... value = e ... finally: - ... print "Don't forget to clean up when 'close()' is called." + ... print("Don't forget to clean up when 'close()' is called.") ... >>> generator = echo(1) - >>> print generator.next() + >>> print(generator.next()) Execution starts when 'next()' is called for the first time. 1 - >>> print generator.next() + >>> print(generator.next()) None - >>> print generator.send(2) + >>> print(generator.send(2)) 2 >>> generator.throw(TypeError, "spam") TypeError('spam',) @@ -640,7 +640,7 @@ A consequence of this is that although the ``*expression`` syntax appears (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 fbc626f..6cb9cd1 100644 --- a/Doc/reference/simple_stmts.rst +++ b/Doc/reference/simple_stmts.rst @@ -254,7 +254,7 @@ are not safe! For instance, the following program prints ``[0, 2]``:: x = [0, 1] i = 0 i, x[i] = 1, 2 - print x + print(x) .. _augassign: diff --git a/Doc/tutorial/errors.rst b/Doc/tutorial/errors.rst index e3c631f..aa367e3 100644 --- a/Doc/tutorial/errors.rst +++ b/Doc/tutorial/errors.rst @@ -26,7 +26,7 @@ complaint you get while you are still learning Python:: The parser repeats the offending line and displays a little 'arrow' pointing at the earliest point in the line where the error was detected. The error is caused by (or at least detected at) the token *preceding* the arrow: in the -example, the error is detected at the keyword :keyword:`print`, since a colon +example, the error is detected at the function :func:`print`, since a colon (``':'``) is missing before it. File name and line number are printed so you know where to look in case the input came from a script. @@ -181,8 +181,8 @@ desired. :: ... print(inst.args) # arguments stored in .args ... print(inst) # __str__ allows args to be printed directly ... x, y = inst # __getitem__ allows args to be unpacked directly - ... print 'x =', x - ... print 'y =', y + ... print('x =', x) + ... print('y =', y) ... <type 'Exception'> ('spam', 'eggs') @@ -260,7 +260,7 @@ directly or indirectly. For example:: >>> try: ... raise MyError(2*2) ... except MyError as e: - ... print 'My exception occurred, value:', e.value + ... print('My exception occurred, value:', e.value) ... My exception occurred, value: 4 >>> raise MyError, 'oops!' diff --git a/Doc/tutorial/floatingpoint.rst b/Doc/tutorial/floatingpoint.rst index ab68723..2eaab12 100644 --- a/Doc/tutorial/floatingpoint.rst +++ b/Doc/tutorial/floatingpoint.rst @@ -85,7 +85,7 @@ Python's builtin :func:`str` function produces only 12 significant digits, and you may wish to use that instead. It's unusual for ``eval(str(x))`` to reproduce *x*, but the output may be more pleasant to look at:: - >>> print str(0.1) + >>> print(str(0.1)) 0.1 It's important to realize that this is, in a real sense, an illusion: the value diff --git a/Doc/tutorial/inputoutput.rst b/Doc/tutorial/inputoutput.rst index 7dc9f74..54f4403 100644 --- a/Doc/tutorial/inputoutput.rst +++ b/Doc/tutorial/inputoutput.rst @@ -132,7 +132,7 @@ with zeros. It understands about plus and minus signs:: Using the ``%`` operator looks like this:: >>> import math - >>> print 'The value of PI is approximately %5.3f.' % math.pi + >>> print('The value of PI is approximately %5.3f.' % math.pi) The value of PI is approximately 3.142. If there is more than one format in the string, you need to pass a tuple as @@ -140,7 +140,7 @@ right operand, as in this example:: >>> table = {'Sjoerd': 4127, 'Jack': 4098, 'Dcab': 7678} >>> for name, phone in table.items(): - ... print '%-10s ==> %10d' % (name, phone) + ... print('%-10s ==> %10d' % (name, phone)) ... Jack ==> 4098 Dcab ==> 7678 @@ -159,7 +159,7 @@ instead of by position. This can be done by using form ``%(name)format``, as shown here:: >>> table = {'Sjoerd': 4127, 'Jack': 4098, 'Dcab': 8637678} - >>> print 'Jack: %(Jack)d; Sjoerd: %(Sjoerd)d; Dcab: %(Dcab)d' % table + >>> print('Jack: %(Jack)d; Sjoerd: %(Sjoerd)d; Dcab: %(Dcab)d' % table) Jack: 4098; Sjoerd: 4127; Dcab: 8637678 This is particularly useful in combination with the new built-in :func:`vars` diff --git a/Doc/tutorial/interpreter.rst b/Doc/tutorial/interpreter.rst index 8b42090..ce78399 100644 --- a/Doc/tutorial/interpreter.rst +++ b/Doc/tutorial/interpreter.rst @@ -111,7 +111,7 @@ example, take a look at this :keyword:`if` statement:: >>> the_world_is_flat = 1 >>> if the_world_is_flat: - ... print "Be careful not to fall off!" + ... print("Be careful not to fall off!") ... Be careful not to fall off! @@ -170,6 +170,8 @@ The script can be given an executable mode, or permission, using the Source Code Encoding -------------------- +.. XXX out of date! + It is possible to use encodings different than ASCII in Python source files. The best way to do it is to put one more special comment line right after the ``#!`` line to define the source file encoding:: @@ -191,7 +193,7 @@ to the Euro symbol) and then exit:: # -*- coding: iso-8859-15 -*- currency = u"€" - print ord(currency) + print(ord(currency)) If your editor supports saving files as ``UTF-8`` with a UTF-8 *byte order mark* (aka BOM), you can use that instead of an encoding declaration. IDLE supports diff --git a/Doc/tutorial/stdlib2.rst b/Doc/tutorial/stdlib2.rst index af243f3..3ef21d2 100644 --- a/Doc/tutorial/stdlib2.rst +++ b/Doc/tutorial/stdlib2.rst @@ -44,7 +44,7 @@ width:: ... a list of strings instead of one big string with newlines to separate ... the wrapped lines.""" ... - >>> print textwrap.fill(doc, width=40) + >>> print(textwrap.fill(doc, width=40)) The wrap() method is just like fill() except that it returns a list of strings instead of one big string with newlines @@ -121,7 +121,7 @@ placeholders such as the current date, image sequence number, or file format:: >>> for i, filename in enumerate(photofiles): ... base, ext = os.path.splitext(filename) ... newname = t.substitute(d=date, n=i, f=ext) - ... print '%s --> %s' % (filename, newname) + ... print('%s --> %s' % (filename, newname)) img_1074.jpg --> Ashley_0.jpg img_1076.jpg --> Ashley_1.jpg @@ -155,7 +155,7 @@ and ``"L"`` representing two and four byte unsigned numbers respectively):: filename = data[start:start+filenamesize] start += filenamesize extra = data[start:start+extra_size] - print filename, hex(crc32), comp_size, uncomp_size + print(filename, hex(crc32), comp_size, uncomp_size) start += extra_size + comp_size # skip to the next header |