changeset: 101358:2af26a93f87f user: Serhiy Storchaka date: Mon May 16 09:10:43 2016 +0300 files: Doc/library/asynchat.rst Lib/asynchat.py Lib/test/test_asynchat.py Misc/NEWS description: Issue #27034: Removed deprecated class asynchat.fifo. diff -r 390af9695e8b -r 2af26a93f87f Doc/library/asynchat.rst --- a/Doc/library/asynchat.rst Sun May 15 23:53:10 2016 -0400 +++ b/Doc/library/asynchat.rst Mon May 16 09:10:43 2016 +0300 @@ -57,13 +57,13 @@ The asynchronous output buffer size (default ``4096``). Unlike :class:`asyncore.dispatcher`, :class:`async_chat` allows you to - define a first-in-first-out queue (fifo) of *producers*. A producer need + define a :abbr:`FIFO (first-in, first-out)` queue of *producers*. A producer need have only one method, :meth:`more`, which should return data to be transmitted on the channel. The producer indicates exhaustion (*i.e.* that it contains no more data) by having its :meth:`more` method return the empty bytes object. At this point - the :class:`async_chat` object removes the producer from the fifo and starts - using the next producer, if any. When the producer fifo is empty the + the :class:`async_chat` object removes the producer from the queue and starts + using the next producer, if any. When the producer queue is empty the :meth:`handle_write` method does nothing. You use the channel object's :meth:`set_terminator` method to describe how to recognize the end of, or an important breakpoint in, an incoming transmission from the remote @@ -77,8 +77,8 @@ .. method:: async_chat.close_when_done() - Pushes a ``None`` on to the producer fifo. When this producer is popped off - the fifo it causes the channel to be closed. + Pushes a ``None`` on to the producer queue. When this producer is popped off + the queue it causes the channel to be closed. .. method:: async_chat.collect_incoming_data(data) @@ -91,7 +91,7 @@ .. method:: async_chat.discard_buffers() In emergencies this method will discard any data held in the input and/or - output buffers and the producer fifo. + output buffers and the producer queue. .. method:: async_chat.found_terminator() @@ -109,7 +109,7 @@ .. method:: async_chat.push(data) - Pushes data on to the channel's fifo to ensure its transmission. + Pushes data on to the channel's queue to ensure its transmission. This is all you need to do to have the channel write the data out to the network, although it is possible to use your own producers in more complex schemes to implement encryption and chunking, for example. @@ -117,7 +117,7 @@ .. method:: async_chat.push_with_producer(producer) - Takes a producer object and adds it to the producer fifo associated with + Takes a producer object and adds it to the producer queue associated with the channel. When all currently-pushed producers have been exhausted the channel will consume this producer's data by calling its :meth:`more` method and send the data to the remote endpoint. diff -r 390af9695e8b -r 2af26a93f87f Lib/asynchat.py --- a/Lib/asynchat.py Sun May 15 23:53:10 2016 -0400 +++ b/Lib/asynchat.py Mon May 16 09:10:43 2016 +0300 @@ -285,35 +285,6 @@ return result -class fifo: - def __init__(self, list=None): - import warnings - warnings.warn('fifo class will be removed in Python 3.6', - DeprecationWarning, stacklevel=2) - if not list: - self.list = deque() - else: - self.list = deque(list) - - def __len__(self): - return len(self.list) - - def is_empty(self): - return not self.list - - def first(self): - return self.list[0] - - def push(self, data): - self.list.append(data) - - def pop(self): - if self.list: - return (1, self.list.popleft()) - else: - return (0, None) - - # Given 'haystack', see if any prefix of 'needle' is at its end. This # assumes an exact match has already been checked. Return the number of # characters matched. diff -r 390af9695e8b -r 2af26a93f87f Lib/test/test_asynchat.py --- a/Lib/test/test_asynchat.py Sun May 15 23:53:10 2016 -0400 +++ b/Lib/test/test_asynchat.py Mon May 16 09:10:43 2016 +0300 @@ -296,37 +296,6 @@ self.assertEqual(asynchat.find_prefix_at_end("qwertydkjf", "\r\n"), 0) -class TestFifo(unittest.TestCase): - def test_basic(self): - with self.assertWarns(DeprecationWarning) as cm: - f = asynchat.fifo() - self.assertEqual(str(cm.warning), - "fifo class will be removed in Python 3.6") - f.push(7) - f.push(b'a') - self.assertEqual(len(f), 2) - self.assertEqual(f.first(), 7) - self.assertEqual(f.pop(), (1, 7)) - self.assertEqual(len(f), 1) - self.assertEqual(f.first(), b'a') - self.assertEqual(f.is_empty(), False) - self.assertEqual(f.pop(), (1, b'a')) - self.assertEqual(len(f), 0) - self.assertEqual(f.is_empty(), True) - self.assertEqual(f.pop(), (0, None)) - - def test_given_list(self): - with self.assertWarns(DeprecationWarning) as cm: - f = asynchat.fifo([b'x', 17, 3]) - self.assertEqual(str(cm.warning), - "fifo class will be removed in Python 3.6") - self.assertEqual(len(f), 3) - self.assertEqual(f.pop(), (1, b'x')) - self.assertEqual(f.pop(), (1, 17)) - self.assertEqual(f.pop(), (1, 3)) - self.assertEqual(f.pop(), (0, None)) - - class TestNotConnected(unittest.TestCase): def test_disallow_negative_terminator(self): # Issue #11259 diff -r 390af9695e8b -r 2af26a93f87f Misc/NEWS --- a/Misc/NEWS Sun May 15 23:53:10 2016 -0400 +++ b/Misc/NEWS Mon May 16 09:10:43 2016 +0300 @@ -277,6 +277,8 @@ Library ------- +- Issue #27034: Removed deprecated class asynchat.fifo. + - Issue #26870: Added readline.set_auto_history(), which can stop entries being automatically added to the history list. Based on patch by Tyler Crompton.