Mailman 3 August 2011 - Python-Dev

inconsistent __abstractmethods__ behavior; lack of documentation
by Christoph Groth 07 Aug '11

07 Aug '11

Hi, while playing with abstract base classes and looking at their implementation, I've stumbled across the following issue. With Python 3.2, the script class Foo(object): __abstractmethods__ = ['boo'] class Bar(object): pass Bar.__abstractmethods__ = ['boo'] f = Foo() b = Bar() produces the following output Traceback (most recent call last): File "/home/cwg/test2.py", line 9, in <module> b = Bar() TypeError: Can't instantiate abstract class Bar with abstract methods buzz This seems to violate PEP 3119: it is not mentioned there that setting the __abstractmethods__ attribute already during class definition (as in "Foo") should have no effect. I think this happens because CPython uses the Py_TPFLAGS_IS_ABSTRACT flag to check whether a class is abstract. Apparently, this flag is not set when the dictionary of the class contains __abstractmethods__ already upon creation. As a second issue, the special __abstractmethods__ attribute (which is a feature of the interpreter) is not mentioned anywhere in the documentation. If these are confirmed to be bugs, I can enter them into the issue tracker. Christoph

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Re: [Python-Dev] [Python-checkins] cpython: #11572: improvements to copy module tests along with removal of old test suite
by Jim Jewett 06 Aug '11

06 Aug '11

Why was the old test suite removed? Even if everything is covered by the test file (and that isn't clear from this checkin), I don't see anything wrong with a quick test that doesn't require loading the whole testing apparatus. (I would have no objection to including a comment saying that the majority of the tests are in the test file; I just wonder why they have to be removed entirely.) On Fri, Aug 5, 2011 at 5:06 PM, sandro.tosi <python-checkins(a)python.org> wrote: > http://hg.python.org/cpython/rev/74e79b2c114a > changeset: 71749:74e79b2c114a > user: Sandro Tosi <sandro.tosi(a)gmail.com> > date: Fri Aug 05 23:05:35 2011 +0200 > summary: > #11572: improvements to copy module tests along with removal of old test suite > > files: > Lib/copy.py | 65 ----------- > Lib/test/test_copy.py | 168 ++++++++++++++++------------- > 2 files changed, 95 insertions(+), 138 deletions(-) > > > diff --git a/Lib/copy.py b/Lib/copy.py > --- a/Lib/copy.py > +++ b/Lib/copy.py > @@ -323,68 +323,3 @@ > # Helper for instance creation without calling __init__ > class _EmptyClass: > pass > - > -def _test(): > - l = [None, 1, 2, 3.14, 'xyzzy', (1, 2), [3.14, 'abc'], > - {'abc': 'ABC'}, (), [], {}] > - l1 = copy(l) > - print(l1==l) > - l1 = map(copy, l) > - print(l1==l) > - l1 = deepcopy(l) > - print(l1==l) > - class C: > - def __init__(self, arg=None): > - self.a = 1 > - self.arg = arg > - if __name__ == '__main__': > - import sys > - file = sys.argv[0] > - else: > - file = __file__ > - self.fp = open(file) > - self.fp.close() > - def __getstate__(self): > - return {'a': self.a, 'arg': self.arg} > - def __setstate__(self, state): > - for key, value in state.items(): > - setattr(self, key, value) > - def __deepcopy__(self, memo=None): > - new = self.__class__(deepcopy(self.arg, memo)) > - new.a = self.a > - return new > - c = C('argument sketch') > - l.append(c) > - l2 = copy(l) > - print(l == l2) > - print(l) > - print(l2) > - l2 = deepcopy(l) > - print(l == l2) > - print(l) > - print(l2) > - l.append({l[1]: l, 'xyz': l[2]}) > - l3 = copy(l) > - import reprlib > - print(map(reprlib.repr, l)) > - print(map(reprlib.repr, l1)) > - print(map(reprlib.repr, l2)) > - print(map(reprlib.repr, l3)) > - l3 = deepcopy(l) > - print(map(reprlib.repr, l)) > - print(map(reprlib.repr, l1)) > - print(map(reprlib.repr, l2)) > - print(map(reprlib.repr, l3)) > - class odict(dict): > - def __init__(self, d = {}): > - self.a = 99 > - dict.__init__(self, d) > - def __setitem__(self, k, i): > - dict.__setitem__(self, k, i) > - self.a > - o = odict({"A" : "B"}) > - x = deepcopy(o) > - print(o, x) > - > -if __name__ == '__main__': > - _test() > diff --git a/Lib/test/test_copy.py b/Lib/test/test_copy.py > --- a/Lib/test/test_copy.py > +++ b/Lib/test/test_copy.py > @@ -17,7 +17,7 @@ > # Attempt full line coverage of copy.py from top to bottom > > def test_exceptions(self): > - self.assertTrue(copy.Error is copy.error) > + self.assertIs(copy.Error, copy.error) > self.assertTrue(issubclass(copy.Error, Exception)) > > # The copy() method > @@ -54,20 +54,26 @@ > def test_copy_reduce_ex(self): > class C(object): > def __reduce_ex__(self, proto): > + c.append(1) > return "" > def __reduce__(self): > - raise support.TestFailed("shouldn't call this") > + self.fail("shouldn't call this") > + c = [] > x = C() > y = copy.copy(x) > - self.assertTrue(y is x) > + self.assertIs(y, x) > + self.assertEqual(c, [1]) > > def test_copy_reduce(self): > class C(object): > def __reduce__(self): > + c.append(1) > return "" > + c = [] > x = C() > y = copy.copy(x) > - self.assertTrue(y is x) > + self.assertIs(y, x) > + self.assertEqual(c, [1]) > > def test_copy_cant(self): > class C(object): > @@ -91,7 +97,7 @@ > "hello", "hello\u1234", f.__code__, > NewStyle, range(10), Classic, max] > for x in tests: > - self.assertTrue(copy.copy(x) is x, repr(x)) > + self.assertIs(copy.copy(x), x) > > def test_copy_list(self): > x = [1, 2, 3] > @@ -185,9 +191,9 @@ > x = [x, x] > y = copy.deepcopy(x) > self.assertEqual(y, x) > - self.assertTrue(y is not x) > - self.assertTrue(y[0] is not x[0]) > - self.assertTrue(y[0] is y[1]) > + self.assertIsNot(y, x) > + self.assertIsNot(y[0], x[0]) > + self.assertIs(y[0], y[1]) > > def test_deepcopy_issubclass(self): > # XXX Note: there's no way to test the TypeError coming out of > @@ -227,20 +233,26 @@ > def test_deepcopy_reduce_ex(self): > class C(object): > def __reduce_ex__(self, proto): > + c.append(1) > return "" > def __reduce__(self): > - raise support.TestFailed("shouldn't call this") > + self.fail("shouldn't call this") > + c = [] > x = C() > y = copy.deepcopy(x) > - self.assertTrue(y is x) > + self.assertIs(y, x) > + self.assertEqual(c, [1]) > > def test_deepcopy_reduce(self): > class C(object): > def __reduce__(self): > + c.append(1) > return "" > + c = [] > x = C() > y = copy.deepcopy(x) > - self.assertTrue(y is x) > + self.assertIs(y, x) > + self.assertEqual(c, [1]) > > def test_deepcopy_cant(self): > class C(object): > @@ -264,14 +276,14 @@ > "hello", "hello\u1234", f.__code__, > NewStyle, range(10), Classic, max] > for x in tests: > - self.assertTrue(copy.deepcopy(x) is x, repr(x)) > + self.assertIs(copy.deepcopy(x), x) > > def test_deepcopy_list(self): > x = [[1, 2], 3] > y = copy.deepcopy(x) > self.assertEqual(y, x) > - self.assertTrue(x is not y) > - self.assertTrue(x[0] is not y[0]) > + self.assertIsNot(x, y) > + self.assertIsNot(x[0], y[0]) > > def test_deepcopy_reflexive_list(self): > x = [] > @@ -279,16 +291,26 @@ > y = copy.deepcopy(x) > for op in comparisons: > self.assertRaises(RuntimeError, op, y, x) > - self.assertTrue(y is not x) > - self.assertTrue(y[0] is y) > + self.assertIsNot(y, x) > + self.assertIs(y[0], y) > self.assertEqual(len(y), 1) > > + def test_deepcopy_empty_tuple(self): > + x = () > + y = copy.deepcopy(x) > + self.assertIs(x, y) > + > def test_deepcopy_tuple(self): > x = ([1, 2], 3) > y = copy.deepcopy(x) > self.assertEqual(y, x) > - self.assertTrue(x is not y) > - self.assertTrue(x[0] is not y[0]) > + self.assertIsNot(x, y) > + self.assertIsNot(x[0], y[0]) > + > + def test_deepcopy_tuple_of_immutables(self): > + x = ((1, 2), 3) > + y = copy.deepcopy(x) > + self.assertIs(x, y) > > def test_deepcopy_reflexive_tuple(self): > x = ([],) > @@ -296,16 +318,16 @@ > y = copy.deepcopy(x) > for op in comparisons: > self.assertRaises(RuntimeError, op, y, x) > - self.assertTrue(y is not x) > - self.assertTrue(y[0] is not x[0]) > - self.assertTrue(y[0][0] is y) > + self.assertIsNot(y, x) > + self.assertIsNot(y[0], x[0]) > + self.assertIs(y[0][0], y) > > def test_deepcopy_dict(self): > x = {"foo": [1, 2], "bar": 3} > y = copy.deepcopy(x) > self.assertEqual(y, x) > - self.assertTrue(x is not y) > - self.assertTrue(x["foo"] is not y["foo"]) > + self.assertIsNot(x, y) > + self.assertIsNot(x["foo"], y["foo"]) > > def test_deepcopy_reflexive_dict(self): > x = {} > @@ -315,8 +337,8 @@ > self.assertRaises(TypeError, op, y, x) > for op in equality_comparisons: > self.assertRaises(RuntimeError, op, y, x) > - self.assertTrue(y is not x) > - self.assertTrue(y['foo'] is y) > + self.assertIsNot(y, x) > + self.assertIs(y['foo'], y) > self.assertEqual(len(y), 1) > > def test_deepcopy_keepalive(self): > @@ -349,7 +371,7 @@ > x = C([42]) > y = copy.deepcopy(x) > self.assertEqual(y, x) > - self.assertTrue(y.foo is not x.foo) > + self.assertIsNot(y.foo, x.foo) > > def test_deepcopy_inst_deepcopy(self): > class C: > @@ -362,8 +384,8 @@ > x = C([42]) > y = copy.deepcopy(x) > self.assertEqual(y, x) > - self.assertTrue(y is not x) > - self.assertTrue(y.foo is not x.foo) > + self.assertIsNot(y, x) > + self.assertIsNot(y.foo, x.foo) > > def test_deepcopy_inst_getinitargs(self): > class C: > @@ -376,8 +398,8 @@ > x = C([42]) > y = copy.deepcopy(x) > self.assertEqual(y, x) > - self.assertTrue(y is not x) > - self.assertTrue(y.foo is not x.foo) > + self.assertIsNot(y, x) > + self.assertIsNot(y.foo, x.foo) > > def test_deepcopy_inst_getstate(self): > class C: > @@ -390,8 +412,8 @@ > x = C([42]) > y = copy.deepcopy(x) > self.assertEqual(y, x) > - self.assertTrue(y is not x) > - self.assertTrue(y.foo is not x.foo) > + self.assertIsNot(y, x) > + self.assertIsNot(y.foo, x.foo) > > def test_deepcopy_inst_setstate(self): > class C: > @@ -404,8 +426,8 @@ > x = C([42]) > y = copy.deepcopy(x) > self.assertEqual(y, x) > - self.assertTrue(y is not x) > - self.assertTrue(y.foo is not x.foo) > + self.assertIsNot(y, x) > + self.assertIsNot(y.foo, x.foo) > > def test_deepcopy_inst_getstate_setstate(self): > class C: > @@ -420,8 +442,8 @@ > x = C([42]) > y = copy.deepcopy(x) > self.assertEqual(y, x) > - self.assertTrue(y is not x) > - self.assertTrue(y.foo is not x.foo) > + self.assertIsNot(y, x) > + self.assertIsNot(y.foo, x.foo) > > def test_deepcopy_reflexive_inst(self): > class C: > @@ -429,8 +451,8 @@ > x = C() > x.foo = x > y = copy.deepcopy(x) > - self.assertTrue(y is not x) > - self.assertTrue(y.foo is y) > + self.assertIsNot(y, x) > + self.assertIs(y.foo, y) > > # _reconstruct() > > @@ -440,9 +462,9 @@ > return "" > x = C() > y = copy.copy(x) > - self.assertTrue(y is x) > + self.assertIs(y, x) > y = copy.deepcopy(x) > - self.assertTrue(y is x) > + self.assertIs(y, x) > > def test_reconstruct_nostate(self): > class C(object): > @@ -451,9 +473,9 @@ > x = C() > x.foo = 42 > y = copy.copy(x) > - self.assertTrue(y.__class__ is x.__class__) > + self.assertIs(y.__class__, x.__class__) > y = copy.deepcopy(x) > - self.assertTrue(y.__class__ is x.__class__) > + self.assertIs(y.__class__, x.__class__) > > def test_reconstruct_state(self): > class C(object): > @@ -467,7 +489,7 @@ > self.assertEqual(y, x) > y = copy.deepcopy(x) > self.assertEqual(y, x) > - self.assertTrue(y.foo is not x.foo) > + self.assertIsNot(y.foo, x.foo) > > def test_reconstruct_state_setstate(self): > class C(object): > @@ -483,7 +505,7 @@ > self.assertEqual(y, x) > y = copy.deepcopy(x) > self.assertEqual(y, x) > - self.assertTrue(y.foo is not x.foo) > + self.assertIsNot(y.foo, x.foo) > > def test_reconstruct_reflexive(self): > class C(object): > @@ -491,8 +513,8 @@ > x = C() > x.foo = x > y = copy.deepcopy(x) > - self.assertTrue(y is not x) > - self.assertTrue(y.foo is y) > + self.assertIsNot(y, x) > + self.assertIs(y.foo, y) > > # Additions for Python 2.3 and pickle protocol 2 > > @@ -506,12 +528,12 @@ > x = C([[1, 2], 3]) > y = copy.copy(x) > self.assertEqual(x, y) > - self.assertTrue(x is not y) > - self.assertTrue(x[0] is y[0]) > + self.assertIsNot(x, y) > + self.assertIs(x[0], y[0]) > y = copy.deepcopy(x) > self.assertEqual(x, y) > - self.assertTrue(x is not y) > - self.assertTrue(x[0] is not y[0]) > + self.assertIsNot(x, y) > + self.assertIsNot(x[0], y[0]) > > def test_reduce_5tuple(self): > class C(dict): > @@ -523,12 +545,12 @@ > x = C([("foo", [1, 2]), ("bar", 3)]) > y = copy.copy(x) > self.assertEqual(x, y) > - self.assertTrue(x is not y) > - self.assertTrue(x["foo"] is y["foo"]) > + self.assertIsNot(x, y) > + self.assertIs(x["foo"], y["foo"]) > y = copy.deepcopy(x) > self.assertEqual(x, y) > - self.assertTrue(x is not y) > - self.assertTrue(x["foo"] is not y["foo"]) > + self.assertIsNot(x, y) > + self.assertIsNot(x["foo"], y["foo"]) > > def test_copy_slots(self): > class C(object): > @@ -536,7 +558,7 @@ > x = C() > x.foo = [42] > y = copy.copy(x) > - self.assertTrue(x.foo is y.foo) > + self.assertIs(x.foo, y.foo) > > def test_deepcopy_slots(self): > class C(object): > @@ -545,7 +567,7 @@ > x.foo = [42] > y = copy.deepcopy(x) > self.assertEqual(x.foo, y.foo) > - self.assertTrue(x.foo is not y.foo) > + self.assertIsNot(x.foo, y.foo) > > def test_deepcopy_dict_subclass(self): > class C(dict): > @@ -562,7 +584,7 @@ > y = copy.deepcopy(x) > self.assertEqual(x, y) > self.assertEqual(x._keys, y._keys) > - self.assertTrue(x is not y) > + self.assertIsNot(x, y) > x['bar'] = 1 > self.assertNotEqual(x, y) > self.assertNotEqual(x._keys, y._keys) > @@ -575,8 +597,8 @@ > y = copy.copy(x) > self.assertEqual(list(x), list(y)) > self.assertEqual(x.foo, y.foo) > - self.assertTrue(x[0] is y[0]) > - self.assertTrue(x.foo is y.foo) > + self.assertIs(x[0], y[0]) > + self.assertIs(x.foo, y.foo) > > def test_deepcopy_list_subclass(self): > class C(list): > @@ -586,8 +608,8 @@ > y = copy.deepcopy(x) > self.assertEqual(list(x), list(y)) > self.assertEqual(x.foo, y.foo) > - self.assertTrue(x[0] is not y[0]) > - self.assertTrue(x.foo is not y.foo) > + self.assertIsNot(x[0], y[0]) > + self.assertIsNot(x.foo, y.foo) > > def test_copy_tuple_subclass(self): > class C(tuple): > @@ -604,8 +626,8 @@ > self.assertEqual(tuple(x), ([1, 2], 3)) > y = copy.deepcopy(x) > self.assertEqual(tuple(y), ([1, 2], 3)) > - self.assertTrue(x is not y) > - self.assertTrue(x[0] is not y[0]) > + self.assertIsNot(x, y) > + self.assertIsNot(x[0], y[0]) > > def test_getstate_exc(self): > class EvilState(object): > @@ -633,10 +655,10 @@ > obj = C() > x = weakref.ref(obj) > y = _copy(x) > - self.assertTrue(y is x) > + self.assertIs(y, x) > del obj > y = _copy(x) > - self.assertTrue(y is x) > + self.assertIs(y, x) > > def test_copy_weakref(self): > self._check_weakref(copy.copy) > @@ -652,7 +674,7 @@ > u[a] = b > u[c] = d > v = copy.copy(u) > - self.assertFalse(v is u) > + self.assertIsNot(v, u) > self.assertEqual(v, u) > self.assertEqual(v[a], b) > self.assertEqual(v[c], d) > @@ -682,8 +704,8 @@ > v = copy.deepcopy(u) > self.assertNotEqual(v, u) > self.assertEqual(len(v), 2) > - self.assertFalse(v[a] is b) > - self.assertFalse(v[c] is d) > + self.assertIsNot(v[a], b) > + self.assertIsNot(v[c], d) > self.assertEqual(v[a].i, b.i) > self.assertEqual(v[c].i, d.i) > del c > @@ -702,12 +724,12 @@ > self.assertNotEqual(v, u) > self.assertEqual(len(v), 2) > (x, y), (z, t) = sorted(v.items(), key=lambda pair: pair[0].i) > - self.assertFalse(x is a) > + self.assertIsNot(x, a) > self.assertEqual(x.i, a.i) > - self.assertTrue(y is b) > - self.assertFalse(z is c) > + self.assertIs(y, b) > + self.assertIsNot(z, c) > self.assertEqual(z.i, c.i) > - self.assertTrue(t is d) > + self.assertIs(t, d) > del x, y, z, t > del d > self.assertEqual(len(v), 1) > @@ -720,7 +742,7 @@ > f.b = f.m > g = copy.deepcopy(f) > self.assertEqual(g.m, g.b) > - self.assertTrue(g.b.__self__ is g) > + self.assertIs(g.b.__self__, g) > g.b() > > > > -- > Repository URL: http://hg.python.org/cpython > > _______________________________________________ > Python-checkins mailing list > Python-checkins(a)python.org > http://mail.python.org/mailman/listinfo/python-checkins > >

3 2

Re: [Python-Dev] cpython (2.7): note Ellipsis syntax
by Georg Brandl 06 Aug '11

06 Aug '11

On 07/30/11 17:00, benjamin.peterson wrote: > http://hg.python.org/cpython/rev/402f94edf11b > changeset: 71637:402f94edf11b > branch: 2.7 > user: Benjamin Peterson <benjamin(a)python.org> > date: Sat Jul 30 09:59:12 2011 -0500 > summary: > note Ellipsis syntax > > files: > Doc/library/stdtypes.rst | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > > diff --git a/Doc/library/stdtypes.rst b/Doc/library/stdtypes.rst > --- a/Doc/library/stdtypes.rst > +++ b/Doc/library/stdtypes.rst > @@ -2930,7 +2930,7 @@ > supports no special operations. There is exactly one ellipsis object, named > :const:`Ellipsis` (a built-in name). > > -It is written as ``Ellipsis``. > +It is written as ``Ellipsis`` or ``...``. In 2.7, this is not true; ``...`` only works in slices there. Georg

7 7

Summary of Python tracker Issues
by Python tracker 06 Aug '11

06 Aug '11

ACTIVITY SUMMARY (2011-07-29 - 2011-08-05) Python tracker at http://bugs.python.org/ To view or respond to any of the issues listed below, click on the issue. Do NOT respond to this message. Issues counts and deltas: open 2899 (+10) closed 21579 (+32) total 24478 (+42) Open issues with patches: 1255 Issues opened (27) ================== #1813: Codec lookup failing under turkish locale http://bugs.python.org/issue1813 reopened by skrah #9723: Add shlex.quote http://bugs.python.org/issue9723 reopened by eric.araujo #12656: test.test_asyncore: add tests for AF_INET6 and AF_UNIX sockets http://bugs.python.org/issue12656 opened by neologix #12657: Cannot override JSON encoding of basic type subclasses http://bugs.python.org/issue12657 opened by barry #12659: Add tests for packaging.tests.support http://bugs.python.org/issue12659 opened by eric.araujo #12660: test_gdb fails when installed http://bugs.python.org/issue12660 opened by pitrou #12661: Add a new shutil.cleartree function to shutil module http://bugs.python.org/issue12661 opened by chin #12662: Allow configparser to process suplicate options http://bugs.python.org/issue12662 opened by ojab #12666: map semantic change not documented in What's New http://bugs.python.org/issue12666 opened by jason.coombs #12668: 3.2 What's New: it's integer->string, not the opposite http://bugs.python.org/issue12668 opened by sandro.tosi #12669: test_curses skipped on buildbots http://bugs.python.org/issue12669 opened by nadeem.vawda #12672: Some problems in documentation extending/newtypes.html http://bugs.python.org/issue12672 opened by eli.bendersky #12675: tokenize module happily tokenizes code with syntax errors http://bugs.python.org/issue12675 opened by Gareth.Rees #12677: Turtle, fix right/left rotation orientation http://bugs.python.org/issue12677 opened by sandro.tosi #12678: test_packaging and test_distutils failures under Windows http://bugs.python.org/issue12678 opened by pitrou #12680: cPickle.loads is not thread safe due to non-thread-safe import http://bugs.python.org/issue12680 opened by Sagiv.Malihi #12681: unittest expectedFailure could take a message argument like sk http://bugs.python.org/issue12681 opened by r.david.murray #12682: Meaning of 'accepted' resolution as documented in devguide http://bugs.python.org/issue12682 opened by r.david.murray #12684: profile does not dump stats on exception like cProfile does http://bugs.python.org/issue12684 opened by anacrolix #12686: argparse - document (and improve?) use of SUPPRESS with help= http://bugs.python.org/issue12686 opened by derks #12687: Python 3.2 fails to load protocol 0 pickle http://bugs.python.org/issue12687 opened by vinay.sajip #12690: Tix bug 2643483 http://bugs.python.org/issue12690 opened by Gary.Levin #12691: tokenize.untokenize is broken http://bugs.python.org/issue12691 opened by Gareth.Rees #12692: test_urllib2net is triggering a ResourceWarning http://bugs.python.org/issue12692 opened by brett.cannon #12693: test.support.transient_internet prints to stderr when verbose http://bugs.python.org/issue12693 opened by brett.cannon #12694: crlf.py script from Tools doesn't work with Python 3.2 http://bugs.python.org/issue12694 opened by bialix #12696: pydoc error page due to lacking permissions on ./* http://bugs.python.org/issue12696 opened by gagern Most recent 15 issues with no replies (15) ========================================== #12696: pydoc error page due to lacking permissions on ./* http://bugs.python.org/issue12696 #12694: crlf.py script from Tools doesn't work with Python 3.2 http://bugs.python.org/issue12694 #12684: profile does not dump stats on exception like cProfile does http://bugs.python.org/issue12684 #12672: Some problems in documentation extending/newtypes.html http://bugs.python.org/issue12672 #12668: 3.2 What's New: it's integer->string, not the opposite http://bugs.python.org/issue12668 #12662: Allow configparser to process suplicate options http://bugs.python.org/issue12662 #12660: test_gdb fails when installed http://bugs.python.org/issue12660 #12659: Add tests for packaging.tests.support http://bugs.python.org/issue12659 #12657: Cannot override JSON encoding of basic type subclasses http://bugs.python.org/issue12657 #12656: test.test_asyncore: add tests for AF_INET6 and AF_UNIX sockets http://bugs.python.org/issue12656 #12653: Provide accelerators for all buttons in Windows installers http://bugs.python.org/issue12653 #12645: test.support. import_fresh_module - incorrect doc http://bugs.python.org/issue12645 #12639: msilib Directory.start_component() fails if keyfile is not Non http://bugs.python.org/issue12639 #12623: "universal newlines" subprocess support broken with select- an http://bugs.python.org/issue12623 #12622: failfast argument to TextTestRunner not documented http://bugs.python.org/issue12622 Most recent 15 issues waiting for review (15) ============================================= #12684: profile does not dump stats on exception like cProfile does http://bugs.python.org/issue12684 #12677: Turtle, fix right/left rotation orientation http://bugs.python.org/issue12677 #12668: 3.2 What's New: it's integer->string, not the opposite http://bugs.python.org/issue12668 #12661: Add a new shutil.cleartree function to shutil module http://bugs.python.org/issue12661 #12656: test.test_asyncore: add tests for AF_INET6 and AF_UNIX sockets http://bugs.python.org/issue12656 #12652: Keep test.support docs out of the global docs index http://bugs.python.org/issue12652 #12650: Subprocess leaks fd upon kill() http://bugs.python.org/issue12650 #12646: zlib.Decompress.decompress/flush do not raise any exceptions w http://bugs.python.org/issue12646 #12639: msilib Directory.start_component() fails if keyfile is not Non http://bugs.python.org/issue12639 #12633: sys.modules doc entry should reflect restrictions http://bugs.python.org/issue12633 #12627: Implement PEP 394: The "python" Command on Unix-Like Systems http://bugs.python.org/issue12627 #12625: sporadic test_unittest failure http://bugs.python.org/issue12625 #12619: Automatically regenerate platform-specific modules http://bugs.python.org/issue12619 #12618: py_compile cannot create files in current directory http://bugs.python.org/issue12618 #12614: Allow to explicitly set the method of urllib.request.Request http://bugs.python.org/issue12614 Top 10 most discussed issues (10) ================================= #12675: tokenize module happily tokenizes code with syntax errors http://bugs.python.org/issue12675 8 msgs #11049: add tests for test.support http://bugs.python.org/issue11049 7 msgs #7424: segmentation fault in listextend during install http://bugs.python.org/issue7424 6 msgs #11572: bring Lib/copy.py to 100% coverage http://bugs.python.org/issue11572 6 msgs #12648: Wrong import module search order on Windows http://bugs.python.org/issue12648 6 msgs #12682: Meaning of 'accepted' resolution as documented in devguide http://bugs.python.org/issue12682 6 msgs #1813: Codec lookup failing under turkish locale http://bugs.python.org/issue1813 5 msgs #12652: Keep test.support docs out of the global docs index http://bugs.python.org/issue12652 5 msgs #8639: Allow callable objects in inspect.getfullargspec http://bugs.python.org/issue8639 4 msgs #9968: cgi.FieldStorage: Give control about the directory used for up http://bugs.python.org/issue9968 4 msgs Issues closed (33) ================== #9788: atexit and execution order http://bugs.python.org/issue9788 closed by eric.araujo #11104: distutils sdist ignores MANIFEST http://bugs.python.org/issue11104 closed by eric.araujo #11281: smtplib: add ability to bind to specific source IP address/por http://bugs.python.org/issue11281 closed by python-dev #11651: Improve test targets in Makefile http://bugs.python.org/issue11651 closed by nadeem.vawda #11699: Doc for optparse.OptionParser.get_option_group is wrong http://bugs.python.org/issue11699 closed by eli.bendersky #11933: newer() function in dep_util.py mixes up new vs. old files due http://bugs.python.org/issue11933 closed by eric.araujo #12183: Document behaviour of shutil.copy2 and copystat with symlinks http://bugs.python.org/issue12183 closed by python-dev #12295: Fix ResourceWarning in turtledemo help window http://bugs.python.org/issue12295 closed by eric.araujo #12331: lib2to3 and packaging tests fail because they write into prote http://bugs.python.org/issue12331 closed by eric.araujo #12464: tempfile.TemporaryDirectory.cleanup follows symbolic links http://bugs.python.org/issue12464 closed by neologix #12531: documentation index entries for * and ** http://bugs.python.org/issue12531 closed by eli.bendersky #12540: "Restart Shell" command leaves pythonw.exe processes running http://bugs.python.org/issue12540 closed by ned.deily #12562: calling mmap twice fails on Windows http://bugs.python.org/issue12562 closed by pitrou #12626: run test cases based on a glob filter http://bugs.python.org/issue12626 closed by pitrou #12631: Mutable Sequence Type in .remove() is consistent only with lis http://bugs.python.org/issue12631 closed by petri.lehtinen #12654: sum() works with bytes objects http://bugs.python.org/issue12654 closed by benjamin.peterson #12655: Expose sched.h functions http://bugs.python.org/issue12655 closed by python-dev #12658: Build fails in a non-checkout directory http://bugs.python.org/issue12658 closed by pitrou #12663: ArgumentParser.error writes to stderr not to stdout http://bugs.python.org/issue12663 closed by python-dev #12664: Path variable - Windows installer http://bugs.python.org/issue12664 closed by r.david.murray #12665: Dictionary view example has error in set ops http://bugs.python.org/issue12665 closed by sandro.tosi #12667: Better logging.handler.SMTPHandler doc for 'secure' argument http://bugs.python.org/issue12667 closed by python-dev #12670: Fix struct code after forward declaration on ctypes doc http://bugs.python.org/issue12670 closed by sandro.tosi #12671: urlopen returning empty string http://bugs.python.org/issue12671 closed by mrabarnett #12673: SEGFAULT error on OpenBSD (sparc) http://bugs.python.org/issue12673 closed by r.david.murray #12674: pydoc str.split does not find the method http://bugs.python.org/issue12674 closed by r.david.murray #12676: Bug in http.client http://bugs.python.org/issue12676 closed by python-dev #12679: ThreadError is not in threading.__all__ http://bugs.python.org/issue12679 closed by python-dev #12683: urlparse.urljoin different behavior for different scheme http://bugs.python.org/issue12683 closed by python-dev #12685: The backslash escape doesn't concatenate two strings in one in http://bugs.python.org/issue12685 closed by benjamin.peterson #12688: ConfigParser.__init__(iterpolation=None) documentation != beha http://bugs.python.org/issue12688 closed by lukasz.langa #12689: IDLE crashes after pressing ctrl+space http://bugs.python.org/issue12689 closed by r.david.murray #12695: subprocess.Popen: OSError: [Errno 9] Bad file descriptor http://bugs.python.org/issue12695 closed by gagern

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what is the significance of "plat-linux2" in the python build process?
by Robert P. J. Day 05 Aug '11

05 Aug '11

(note: i'm not a python dev subscriber so please make sure you CC me with any advice and i'm hoping this desperate plea for assistance is at least enough on-point for this list that someone can help me out. and, yes, this is rather verbose but i wanted to supply all of the relevant details in one shot.) i asked about this on the general python help list but i suspect it's more appropriate to ask developers about this and i'm hoping someone can clear this up for me. i'm building an embedded system using wind river linux 4.2 (WRL 4.2), and part of that build process involves downloading, patching and compiling python 2.6.2 for the eventual target filesystem. this is all being done on my 64-bit ubuntu 11.04 system and, to keep things simple, i'm not even cross-compiling, i've selected a common 64-bit PC as the target, so i should be able to ignore any cross compile-related glitches i might have had. this build process works just fine for everyone else on the planet but it fails for me because i'm doing something apparently no one else has tried -- i'm running a (hand-rolled) linux 3.x kernel on my build host and it *seems* that that's what's messing up the python compilation somewhere in the WRL build scripts. (as a side note, i have run across other issues in the WRL build system where it was simply never imagined that one might want to build on a system running a 3.x kernel, so that's why i'm suspecting it has something to do with that. apparently, i'm out there on the bleeding edge and this is what might be causing me grief.) the symptom seems to be that there is confusion in the python build process between two directories: "plat-linux2" and "plat-linux3". my first simple question would be: what do those names represent and how should they appear in the build process? as a benchmark, i downloaded an *absolutely stock* Python-2.6.2 tarball, untarred it, ran "./configure", then searched for any references to those strings just so i could have a basis for comparison. so, immediately after the configure, here's what i found for the stock 2.6.2 python tarball: $ find . -name "plat-linux*" ./Lib/plat-linux2 $ $ grep -r plat-linux * Doc/install/index.rst: ['', '/usr/local/lib/python2.3', '/usr/local/lib/python2.3/plat-linux2', Doc/install/index.rst:'/www/python/lib/pythonX.Y/plat-linux2', ...]``. Misc/RPM/python-2.6.spec:%{__prefix}/%{libdirname}/python%{libvers}/plat-linux2 Misc/HISTORY: * Lib/plat-sunos5/CDIO.py, Lib/plat-linux2/CDROM.py: Misc/HISTORY:e.g. lib-tk, lib-stdwin, plat-win, plat-linux2, plat-sunos5, dos-8x3. $ so, before the build, there are a few references to plat-linux2 and *none* to plat-linux3. i then ran "make" (which seemed to work just fine) and here's the result of a similar search after the make: $ find . -name "plat-linux*" ./Lib/plat-linux2 $ so that's still the same after the build, there is no plat-linux3 file or directory that's been created. however, if i do a recursive grep: $ grep -r plat-linux3 * Binary file libpython2.6.a matches Binary file Modules/getpath.o matches Binary file python matches $ then it's clear that the string "plat-linux3" is now embedded in a small number of the build results. so what does that string represent? why is it there and what does "2" mean compared to "3" in this context? and, most importantly, even though it's there, it didn't stop the build from completing. now take a look at the tail end of the output of the WRL build of python, where things go wrong (what is clearly a packaging step so i'm well aware that this is somewhat outside the scope of normal python building): ===== begin output ===== ... snip ... Checking for unpackaged file(s): /home/rpjday/WindRiver/projects/42/python/host-cross/bin/../lib64/rpm/check-files /home/rpjday/WindRiver/projects/42/python/build/INSTALL_STAGE/python-2.6.2 error: Installed (but unpackaged) file(s) found: /usr/lib64/python2.6/plat-linux3/IN.py /usr/lib64/python2.6/plat-linux3/IN.pyc /usr/lib64/python2.6/plat-linux3/IN.pyo /usr/lib64/python2.6/plat-linux3/regen RPM build errors: File not found: /home/rpjday/WindRiver/projects/42/python/build/INSTALL_STAGE/python-2.6.2/usr/lib64/python2.6/plat-linux2 Installed (but unpackaged) file(s) found: /usr/lib64/python2.6/plat-linux3/IN.py /usr/lib64/python2.6/plat-linux3/IN.pyc /usr/lib64/python2.6/plat-linux3/IN.pyo /usr/lib64/python2.6/plat-linux3/regen /home/rpjday/WindRiver/projects/42/python/scripts/packages.mk:2661: *** [python.install] Error 1 /home/rpjday/WindRiver/projects/42/python/scripts/packages.mk:3017: *** [python.buildlogger] Error 2 /home/rpjday/WindRiver/projects/42/python/scripts/packages.mk:3225: *** [python.build] Error 2 make: *** [python] Error 2 make: Leaving directory `/home/rpjday/WindRiver/projects/42/python/build' ===== end output ===== note the obvious reference to this "plat-linux3" directory that appears out of nowhere that never existed in the stock build. and if i wander down to the WRL python build directory: $ find . -name plat-linux* ./Lib/plat-linux2 ./Lib/plat-linux3 $ $ find Lib/plat-linux[23] Lib/plat-linux2 Lib/plat-linux2/CDROM.py Lib/plat-linux2/DLFCN.py Lib/plat-linux2/IN.py Lib/plat-linux2/regen Lib/plat-linux2/TYPES.py Lib/plat-linux3 Lib/plat-linux3/IN.py Lib/plat-linux3/regen $ and this is as far as i got before confusion set in. it seems that the WRL build process is getting confused about which of those two values to use for the build and ends up scattering generated artifacts across both directories, at which point the packaging step gets confused and gives up. if anyone can clarify what might be going on here and what *should* be happening, i'd be grateful. i realize i'm asking for remote diagnosis on a proprietary build system, i'm just wondering what a native python build *should* look like and what it should produce. thanks muchly for any guidance. rday -- ======================================================================== Robert P. J. Day Ottawa, Ontario, CANADA http://crashcourse.ca Twitter: http://twitter.com/rpjday LinkedIn: http://ca.linkedin.com/in/rpjday ========================================================================

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Re: [Python-Dev] Daily reference leaks (65c412586901): sum=0
by Georg Brandl 04 Aug '11

04 Aug '11

Am 04.08.2011 05:25, schrieb solipsis(a)pitrou.net: > results for 65c412586901 on branch "default" > -------------------------------------------- > > > > Command line was: ['./python', '-m', 'test.regrtest', '-uall', '-R', > '3:3:/home/antoine/cpython/refleaks/reflogso7nu3', '-x'] Do we need this mail even if there are no leaks to report? Georg

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unittest bug
by Ethan Furman 04 Aug '11

04 Aug '11

My apologies for posting here first, but I'm not yet confident enough in my bug searching fu, and duplicates are a pain. Here's the issue: from unittest import * class MyTest(TestCase): def test_add(self): self.assertEqual(1,(2-1),"Sample Subraction Test") if __name__ == '__main__': main() I know this isn't the normal way to use unittest, but since __init__ goes to the trouble of defining __all__ I would think it was supported. However, it doesn't work -- I added some print statements to show where the problem lies (in unittest.loader.TestLoader.loadTestsFromModule): ---------------------------------------------------------------------- checking <class 'unittest.case.FunctionTestCase'> added checking <class '__main__.MyTest'> added checking <class 'unittest.case.SkipTest'> checking <class 'unittest.case.TestCase'> added checking <class 'unittest.loader.TestLoader'> checking <class 'unittest.result.TestResult'> checking <class 'unittest.suite.TestSuite'> checking <class 'unittest.runner.TextTestResult'> checking <class 'unittest.runner.TextTestRunner'> checking <module 'builtins' (built-in)> checking None checking None checking 'test_add.py' checking '__main__' checking None checking <unittest.loader.TestLoader object at 0x00C92BF0> checking <function expectedFailure at 0x00C7D930> checking <function findTestCases at 0x00C8CA50> checking <function getTestCaseNames at 0x00C8C9C0> checking <function installHandler at 0x00C97A08> checking <class 'unittest.main.TestProgram'> checking <function makeSuite at 0x00C8CA08> checking <function registerResult at 0x00C97978> checking <function removeHandler at 0x00C97A50> checking <function removeResult at 0x00C979C0> checking <function skip at 0x00C7D858> checking <function skipIf at 0x00C7D8A0> checking <function skipUnless at 0x00C7D8E8> test = <unittest.suite.TestSuite tests=[<unittest.suite.TestSuite tests=[<unittest.case.FunctionTestCase tec=runTest>]>, <unittest.suite.TestSuite tests=[<__main__. MyTest testMethod=test_add>]>, <unittest.suite.TestSuite tests=[]>]> --------------------------------------------------------------------- compared with running using the `import unittest` method: --------------------------------------------------------------------- checking <class '__main__.MyTest'> added checking <module 'builtins' (built-in)> checking None checking None checking 'test_add_right.py' checking '__main__' checking None checking <module 'unittest' from 'C:\python32\lib\unittest\__init__.py'> test = <unittest.suite.TestSuite tests=[<unittest.suite.TestSuite tests=[<__main__.MyTest testMethod=test_add>]>]> --------------------------------------------------------------------- As you can see, the TestLoader is getting false positives from case.FunctionTestCase and case.TestCase. This a problem because, besides running more tests than it should, this happens: E. ====================================================================== Traceback (most recent call last): File "test_add.py", line 8, in <module> main() File "C:\python32\lib\unittest\main.py", line 125, in __init__ self.runTests() File "C:\python32\lib\unittest\main.py", line 271, in runTests self.result = testRunner.run(self.test) File "C:\python32\lib\unittest\runner.py", line 175, in run result.printErrors() File "C:\python32\lib\unittest\runner.py", line 109, in printErrors self.printErrorList('ERROR', self.errors) File "C:\python32\lib\unittest\runner.py", line 115, in printErrorList self.stream.writeln("%s: %s" % (flavour,self.getDescription(test))) File "C:\python32\lib\unittest\runner.py", line 47, in getDescription return '\n'.join((str(test), doc_first_line)) File "C:\python32\lib\unittest\case.py", line 1246, in __str__ self._testFunc.__name__) AttributeError: 'str' object has no attribute '__name__' I'll be happy to file a bug report if someone can confirm this hasn't already been filed. Thanks for the help! ~Ethan~ PS No, that's not my code. ;)

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Re: [Python-Dev] cpython (3.2): Fix closes issue12683 - urljoin to work with relative join of svn scheme.
by Antoine Pitrou 03 Aug '11

03 Aug '11

On Wed, 03 Aug 2011 12:47:23 +0200 senthil.kumaran <python-checkins(a)python.org> wrote: > > diff --git a/Lib/test/test_urlparse.py b/Lib/test/test_urlparse.py > --- a/Lib/test/test_urlparse.py > +++ b/Lib/test/test_urlparse.py > @@ -371,6 +371,8 @@ > self.checkJoin('http:///', '..','http:///') > self.checkJoin('', 'http://a/b/c/g?y/./x','http://a/b/c/g?y/./x') > self.checkJoin('', 'http://a/./g', 'http://a/./g') > + self.checkJoin('svn://pathtorepo/dir1', 'dir2', 'svn://pathtorepo/dir2') > + self.checkJoin('svn://pathtorepo/dir1', 'dir2', 'svn://pathtorepo/dir2') This is the same test repeated. Perhaps you meant svn+ssh? Regards Antoine.

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Re: [Python-Dev] cpython (3.2): Fix closes Issue12676 - Invalid identifier used in TypeError message in
by Antoine Pitrou 03 Aug '11

03 Aug '11

On Tue, 02 Aug 2011 12:33:55 +0200 senthil.kumaran <python-checkins(a)python.org> wrote: > raise TypeError("data should be a bytes-like object\ > - or an iterable, got %r " % type(it)) > + or an iterable, got %r " % type(data)) There are still a lot of spaces in your message. You should use string literal concatenation instead: raise TypeError( "data should be a bytes-like object " "or an iterable, got %r" % type(data))

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Re: [Python-Dev] cpython: expose sched.h functions (closes #12655)
by Georg Brandl 03 Aug '11

03 Aug '11

Am 03.08.2011 00:30, schrieb benjamin.peterson: > http://hg.python.org/cpython/rev/89e92e684b37 > changeset: 71704:89e92e684b37 > user: Benjamin Peterson <benjamin(a)python.org> > date: Tue Aug 02 17:30:04 2011 -0500 > summary: > expose sched.h functions (closes #12655) > +static PyObject * > +posix_sched_setaffinity(PyObject *self, PyObject *args) > +{ > + pid_t pid; > + Py_cpu_set *cpu_set; > + > + if (!PyArg_ParseTuple(args, _Py_PARSE_PID "O!|sched_setaffinity", [...] > +static PyObject * > +posix_sched_getaffinity(PyObject *self, PyObject *args) > +{ > + pid_t pid; > + int ncpus; > + Py_cpu_set *res; > + > + if (!PyArg_ParseTuple(args, _Py_PARSE_PID "i|sched_getaffinity", These should be separated by ":", not "|", if I'm not mistaken? Georg

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