Commits

Georg Brandl committed 0148417

Merged revisions 74055 via svnmerge from
svn+ssh://svn.python.org/python/branches/py3k

(Selected changes only.)

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r74055 | alexandre.vassalotti | 2009-07-17 11:18:18 +0200 (Fr, 17 Jul 2009) | 55 lines

Merged revisions 73995,74002,74005,74007-74008,74011,74019-74023 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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r74008 | benjamin.peterson | 2009-07-14 20:46:42 -0400 (Tue, 14 Jul 2009) | 1 line

update year
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r74011 | ezio.melotti | 2009-07-15 13:07:04 -0400 (Wed, 15 Jul 2009) | 1 line

methods' names pep8ification
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r74019 | amaury.forgeotdarc | 2009-07-15 17:29:27 -0400 (Wed, 15 Jul 2009) | 2 lines

#6076 Add a title to the IDLE Preferences window.
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r74020 | georg.brandl | 2009-07-16 03:18:07 -0400 (Thu, 16 Jul 2009) | 1 line

#5910: fix kqueue for calls with more than one event.
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r74021 | georg.brandl | 2009-07-16 03:33:04 -0400 (Thu, 16 Jul 2009) | 1 line

#6486: start with built in functions rather than "built in objects".
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r74022 | georg.brandl | 2009-07-16 03:38:35 -0400 (Thu, 16 Jul 2009) | 1 line

#6481: fix typo in os.system() replacement.
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r74023 | jesse.noller | 2009-07-16 10:23:04 -0400 (Thu, 16 Jul 2009) | 1 line

Issue 6433: multiprocessing.pool.map hangs on empty list
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Files changed (10)

Doc/copyright.rst

 
 Python and this documentation is:
 
-Copyright © 2001-2008 Python Software Foundation. All rights reserved.
+Copyright © 2001-2009 Python Software Foundation. All rights reserved.
 
 Copyright © 2000 BeOpen.com. All rights reserved.
 

Doc/library/intro.rst

 function, module or term in the index (in the back).  And finally, if you enjoy
 learning about random subjects, you choose a random page number (see module
 :mod:`random`) and read a section or two.  Regardless of the order in which you
-read the sections of this manual, it helps to start with chapter :ref:`builtin`,
-as the remainder of the manual assumes familiarity with this material.
+read the sections of this manual, it helps to start with chapter
+:ref:`built-in-funcs`, as the remainder of the manual assumes familiarity with
+this material.
 
 Let the show begin!
 

Doc/library/subprocess.rst

    sts = os.system("mycmd" + " myarg")
    ==>
    p = Popen("mycmd" + " myarg", shell=True)
-   sts = os.waitpid(p.pid, 0)
+   sts = os.waitpid(p.pid, 0)[1]
 
 Notes:
 

Lib/idlelib/configDialog.py

         self.wm_withdraw()
 
         self.configure(borderwidth=5)
+        self.title('IDLE Preferences')
         self.geometry("+%d+%d" % (parent.winfo_rootx()+20,
                 parent.winfo_rooty()+30))
         #Theme Elements. Each theme element key is its display name.

Lib/multiprocessing/pool.py

             chunksize, extra = divmod(len(iterable), len(self._pool) * 4)
             if extra:
                 chunksize += 1
+        if len(iterable) == 0:
+            chunksize = 0
 
         task_batches = Pool._get_tasks(func, iterable, chunksize)
         result = MapResult(self._cache, chunksize, len(iterable), callback)

Lib/test/test_kqueue.py

         server.close()
         serverSocket.close()
 
+    def testPair(self):
+        kq = select.kqueue()
+        a, b = socket.socketpair()
+
+        a.send(b'foo')
+        event1 = select.kevent(a, select.KQ_FILTER_READ, select.KQ_EV_ADD | select.KQ_EV_ENABLE)
+        event2 = select.kevent(b, select.KQ_FILTER_READ, select.KQ_EV_ADD | select.KQ_EV_ENABLE)
+        r = kq.control([event1, event2], 1, 1)
+        self.assertTrue(r)
+        self.assertFalse(r[0].flags & select.KQ_EV_ERROR)
+        self.assertEquals(b.recv(r[0].data), b'foo')
+
+        a.close()
+        b.close()
+        kq.close()
+
 def test_main():
     support.run_unittest(TestKQueue)
 

Lib/test/test_multiprocessing.py

         self.assertEqual(pmap(sqr, list(range(100)), chunksize=20),
                          list(map(sqr, list(range(100)))))
 
+    def test_map_chunksize(self):
+        try:
+            self.pool.map_async(sqr, [], chunksize=1).get(timeout=TIMEOUT1)
+        except multiprocessing.TimeoutError:
+            self.fail("pool.map_async with chunksize stalled on null list")
+
     def test_async(self):
         res = self.pool.apply_async(sqr, (7, TIMEOUT1,))
         get = TimingWrapper(res.get)
 Hans Eckardt
 Grant Edwards
 John Ehresman
+Eric Eisner
 Andrew Eland
 Lance Ellinghaus
 David Ely
 - Issue #6459: distutils.command.build_ext.get_export_symbols now uses the 
   "PyInit" prefix, rather than "init". 
 
+- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
+
 - Issue #6455: Fixed test_build_ext under win32. 
 
 - Issue #6413: Fixed the log level in distutils.dist for announce.

Modules/selectmodule.c

 	if (nevents < 0) {
 		PyErr_Format(PyExc_ValueError,
 			"Length of eventlist must be 0 or positive, got %d",
-			nchanges);
+			nevents);
 		return NULL;
 	}
 
 			PyErr_NoMemory();
 			return NULL;
 		}
+		i = 0;
 		while ((ei = PyIter_Next(it)) != NULL) {
 			if (!kqueue_event_Check(ei)) {
 				Py_DECREF(ei);
 				 	"select.kevent objects");
 				goto error;
 			} else {
-				chl[i] = ((kqueue_event_Object *)ei)->e;
+				chl[i++] = ((kqueue_event_Object *)ei)->e;
 			}
 			Py_DECREF(ei);
 		}
 		goto error;
 	}
 
-	for (i=0; i < gotevents; i++) {
+	for (i = 0; i < gotevents; i++) {
 		kqueue_event_Object *ch;
 
 		ch = PyObject_New(kqueue_event_Object, &kqueue_event_Type);