[issue14719] Lists: [[0]*N]*N != [[0 for _ in range(N)] for __ in range(N)]

2012-05-04 Thread Yuval Greenfield

Yuval Greenfield ubershme...@gmail.com added the comment:

This isn't a bug and should be closed. It's more of a stack overflow question.

If you'd like to change this fundamental behavior of a very common operation in 
python you should make a proposal to the python ideas mailing list at 
http://mail.python.org/mailman/listinfo/python-ideas

In your example board_2 is equivalent to:

row = [0] * N
board_2 = row * N

All the rows are the same initial row. As opposed to board_1 where each row is 
a new row.

Try this:

[id(i) for i in board_2]

The initial equivalence is because they do represent the same values (NxN list 
of all zeroes). What should python compare if not by values?

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[issue14719] Lists: [[0]*N]*N != [[0 for _ in range(N)] for __ in range(N)]

2012-05-04 Thread Martin v . Löwis

Martin v. Löwis mar...@v.loewis.de added the comment:

It's actually fairly easy to explain. Just think about it harder (and consider 
Yuval's explanation).

--
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resolution:  - invalid
status: open - closed

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[issue14127] add st_*time_ns fields to os.stat(), add ns keyword to os.*utime*(), os.*utimens*() expects a number of nanoseconds

2012-05-04 Thread Larry Hastings

Larry Hastings la...@hastings.org added the comment:

 bba131e48852 causes crashes on Windows.

 The attached patch fixes the crash and makes test_os pass for me.

 However, using PyErr_ExceptionMatches(PyExc_RuntimeError) to check
 whether to try again using narrow strings is ugly.  Maybe
 utime_read_time_arguments() should be changed to have three possible
 return values.

I appreciate the feedback, and the patch.  And I agree--we should be able to 
find a better fix than that particular band-aid.  Can we hold off on checking 
in a patch for now?

TBH I don't understand why it should crash, and therefore how your patch helps. 
 Trying again using narrow strings should always work; indeed, the code did 
that before I touched it.  Can you describe how it crashes?

(p.s. Considering that I can't test on Windows myself, I'm pretty happy that 
the code works as well as it does!)

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[issue14720] sqlite3 microseconds

2012-05-04 Thread Frank Millman

New submission from Frank Millman fr...@chagford.com:

sqlite3/dbapi2.py contains the following - 

def convert_timestamp(val): 
datepart, timepart = val.split(b )
timepart_full = timepart.split(b.)
[...] 
if len(timepart_full) == 2: 
microseconds = int(timepart_full[1]) 
else: 
microseconds = 0 

It assumes that 'timepart_full[1]' is a string containing 6 digits. 

I have a situation where the string containing 3 digits, so it gives the wrong 
result. For example, if the string is '456', this represents 456000 
microseconds, but sqlite3 returns 456 microseconds.

I think that it should right-zero-fill the string to 6 digits before converting 
to an int, like this - 

microseconds = int('{:06}'.format(timepart_full[1]))

--
components: Library (Lib)
messages: 159905
nosy: frankmillman
priority: normal
severity: normal
status: open
title: sqlite3 microseconds
type: behavior
versions: Python 3.2

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[issue14719] Lists: [[0]*N]*N != [[0 for _ in range(N)] for __ in range(N)]

2012-05-04 Thread Ezio Melotti

Ezio Melotti ezio.melo...@gmail.com added the comment:

http://docs.python.org/faq/programming.html#how-do-i-create-a-multidimensional-list
http://python.net/crew/mwh/hacks/objectthink.html

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[issue14654] Faster utf-8 decoding

2012-05-04 Thread Serhiy Storchaka

Serhiy Storchaka storch...@gmail.com added the comment:

 title: More fast utf-8 decoding - Faster utf-8 decoding

Éric, there is already an issue (#4868) with this title.

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[issue14654] Faster utf-8 decoding

2012-05-04 Thread Martin v . Löwis

Martin v. Löwis mar...@v.loewis.de added the comment:

There is nothing wrong with two issues having the same title. Of course, it 
would be best if the title reflected the *actual* defect or change, such as 
specialize UTF-8 decoding by character width, or some such.

In any case, the title change is desirable since the original title was 
ungrammatical. If you wanted to point out that this really is an augmented, 
escalated rise, then Even faster utf-8 decoded, amazingly faster UTF-8 
decoding, or unbelievably faster utf-8 decoding could have worked :-)

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[issue14127] add st_*time_ns fields to os.stat(), add ns keyword to os.*utime*(), os.*utimens*() expects a number of nanoseconds

2012-05-04 Thread Richard Oudkerk

Richard Oudkerk shibt...@gmail.com added the comment:

 TBH I don't understand why it should crash, and therefore how your patch 
 helps.  Trying again using narrow strings should always work; indeed, the 
 code did that before I touched it.  Can you describe how it crashes?

The important part of the patch is the removal of the ! in 

if (!utime_read_time_arguments(ua)) {

Without that change, if utime_read_time_arguments(ua) fails then the unicode 
path is wrongly chosen.  Then PyUnicode_AsUnicode(upath) is called when upath 
has not been initialized.

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[issue14654] Faster utf-8 decoding

2012-05-04 Thread Serhiy Storchaka

Serhiy Storchaka storch...@gmail.com added the comment:

Thank you, Martin, this is what I had in mind. Lost in translation. ;)

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[issue14127] add st_*time_ns fields to os.stat(), add ns keyword to os.*utime*(), os.*utimens*() expects a number of nanoseconds

2012-05-04 Thread Richard Oudkerk

Richard Oudkerk shibt...@gmail.com added the comment:

Without the check for RuntimeError

os.utime(foo, times=(5,5), ns=(5,5))

raises

TypeError(TypeError: 'str' does not support the buffer interface)

because we have fallen through to the narrow path.  The correct error is

RuntimeError(utime: you may specify either 'times' or 'ns' but not both)

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[issue14127] add st_*time_ns fields to os.stat(), add ns keyword to os.*utime*(), os.*utimens*() expects a number of nanoseconds

2012-05-04 Thread Larry Hastings

Larry Hastings la...@hastings.org added the comment:

Let me recap, just to make sure I have it straight.  There are two errors on 
Windows:

* The ! on (what is currently) line 3770 is wrong:
if (!utime_read_time_arguments(ua)) {

* If you pass in a Unicode string but also pass in both times and ns,
  you get the wrong error: effectively it's complaining that the string
  is not narrow, when it should be complaining about having both times
  and ns.

For the former, obviously removing the ! is correct.  But I like your idea of 
making the utime_read_time_argument() return value tell you what happened; 
that's what the Windows code needs to know.

So here it is!  Please see the attached patch.

--
Added file: http://bugs.python.org/file25451/larry.utime.win32.bugfix.1.patch

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[issue14127] add st_*time_ns fields to os.stat(), add ns keyword to os.*utime*(), os.*utimens*() expects a number of nanoseconds

2012-05-04 Thread Richard Oudkerk

Richard Oudkerk shibt...@gmail.com added the comment:

 Let me recap, just to make sure I have it straight.  There are two errors 
 on Windows:

That's right.  The patch looks good and passes for me on Windows.

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[issue14127] add st_*time_ns fields to os.stat(), add ns keyword to os.*utime*(), os.*utimens*() expects a number of nanoseconds

2012-05-04 Thread Roundup Robot

Roundup Robot devn...@psf.upfronthosting.co.za added the comment:

New changeset fc5d2f4291ac by Larry Hastings in branch 'default':
Issue #14127: Fix two bugs with the Windows implementation.
http://hg.python.org/cpython/rev/fc5d2f4291ac

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[issue14721] httplib doesn't specify content-length header for POST requests without data

2012-05-04 Thread Arve Knudsen

New submission from Arve Knudsen arve.knud...@gmail.com:

httplib doesn't specify the HTTP header 'content-length' for POST requests 
without data. Conceptually this makes sense, considering the empty content. 
However, IIS (7.5) servers don't accept such requests and respond with a 411 
status code. See this question on StackOverflow for reference: 
http://stackoverflow.com/questions/5915131/can-i-send-an-empty-http-post-webrequest-object-from-c-sharp-to-iis.

See also issue #223 of the Requests project, 
https://github.com/kennethreitz/requests/issues/223, which regards this problem 
in the context of the requests Python library.

The following code makes a data-less POST request to the HTTP sniffer Fiddler 
running on localhost:
import httplib
conn = httplib.HTTPConnection(localhost, )
conn.request(POST, /post, , {})
conn.close()

Fiddler reports that it receives the following headers for the POST request, as 
you can see 'content-length' is not included:
POST http://localhost:/post HTTP/1.1
Host: localhost:
Accept-Encoding: identity

--
components: Library (Lib)
messages: 159915
nosy: Arve.Knudsen
priority: normal
severity: normal
status: open
title: httplib doesn't specify content-length header for POST requests without 
data
versions: Python 2.7

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[issue14705] Add 'bool' format character to PyArg_ParseTuple*

2012-05-04 Thread Eric V. Smith

Eric V. Smith e...@trueblade.com added the comment:

The patch looks good to me.

Are there any places in the current code base that would use P? p seems the 
more useful case.

Are you planning on changing existing code to use P or p, or just use it going 
forward?

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[issue14572] 2.7.3: sqlite module does not build on centos 5 and Mac OS X 10.4

2012-05-04 Thread Marc-Andre Lemburg

Marc-Andre Lemburg m...@egenix.com added the comment:

Mac OS X 10.4 is also affected and for the same reason. SQLite builds fine for 
Python 2.5 and 2.6, but not for 2.7.

--
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title: 2.7.3: sqlite module does not build on centos 5 - 2.7.3: sqlite module 
does not build on centos 5 and Mac OS X 10.4

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[issue14705] Add 'bool' format character to PyArg_ParseTuple*

2012-05-04 Thread Mark Dickinson

Mark Dickinson dicki...@gmail.com added the comment:

I also think that 'P' looks too strict to be really useful.  I can't think of 
too many cases where I'd really want to insist on a boolean argument (and 
reject values of 0 or 1).

Maybe implement just 'p' for now and consider 'P' later?

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[issue14127] add st_*time_ns fields to os.stat(), add ns keyword to os.*utime*(), os.*utimens*() expects a number of nanoseconds

2012-05-04 Thread Richard Oudkerk

Richard Oudkerk shibt...@gmail.com added the comment:

There is another problem causing a fatal error in test_posix on Unix.

The attached patch fixes it: *ua-path should be decrefed not ua-path.

--
Added file: http://bugs.python.org/file25452/utime_read_time_arguments.patch

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[issue14127] add st_*time_ns fields to os.stat(), add ns keyword to os.*utime*(), os.*utimens*() expects a number of nanoseconds

2012-05-04 Thread Larry Hastings

Larry Hastings la...@hastings.org added the comment:

Looks good to me.  You're a core contributor, yes?  If not let me know and I'll 
commit it.

Though I must admit I'm baffled how I haven't seen that crash.  I've run the 
unit tests a zillion times on this patch.

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[issue14127] add st_*time_ns fields to os.stat(), add ns keyword to os.*utime*(), os.*utimens*() expects a number of nanoseconds

2012-05-04 Thread Richard Oudkerk

Richard Oudkerk shibt...@gmail.com added the comment:

 Looks good to me.  You're a core contributor, yes?  If not let me know and 
 I'll commit it.

I will commit.

 Though I must admit I'm baffled how I haven't seen that crash.  I've run 
 the unit tests a zillion times on this patch.

Were you running test_posix or only test_os?

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[issue14127] add st_*time_ns fields to os.stat(), add ns keyword to os.*utime*(), os.*utimens*() expects a number of nanoseconds

2012-05-04 Thread Larry Hastings

Larry Hastings la...@hastings.org added the comment:

By the unit tests I meant I ran the whole suite: Lib/test/regrtest.py.  I 
know that runs test_os, and I assume it runs test_posix too.

I just ran test_posix by hand and it passed.

I'm developing on Linux (64-bit) in case that helps.

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[issue14705] Add 'bool' format character to PyArg_ParseTuple*

2012-05-04 Thread Larry Hastings

Larry Hastings la...@hastings.org added the comment:

I looked through the Python sources and couldn't find any instances of a  
function or method with an argument that only allowed you to pass in either 
True or False.

Serily already said he would use 'P' over 'p', although I too am unconvinced 
that's a good idea.  Serily: why would you unhesitatingly prefer 'P' to 'p'?


Certainly I see loads of uses for 'p'.  For example, when converting code from 
Python to C that already relied on Python's standard definition of truthiness.

I did find some spots that took an object and converted to bool with 
PyObject_IsTrue, like _json.Encoder(allow_nan) and 
pickle._Pickler(fix_imports).  These too would be well-served by 'p'.

I also found some funny in-between cases.  For example, stat_float_times and 
the three-argument form of os.symlink both claim to take a boolean but actually 
take 'i' (integer).  This is relying on bool.__int__().  We certainly couldn't 
use 'P' here.  We could consider switching these to 'p', though in all 
likelyhood we'll just leave 'em alone.

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[issue14127] add st_*time_ns fields to os.stat(), add ns keyword to os.*utime*(), os.*utimens*() expects a number of nanoseconds

2012-05-04 Thread Richard Oudkerk

Richard Oudkerk shibt...@gmail.com added the comment:

 I'm developing on Linux (64-bit) in case that helps.

I tested it on 32 bit Linux.

I have committed it, but I forgot to put the issue number in the commit message.

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[issue14127] add st_*time_ns fields to os.stat(), add ns keyword to os.*utime*(), os.*utimens*() expects a number of nanoseconds

2012-05-04 Thread Martin v . Löwis

Martin v. Löwis mar...@v.loewis.de added the comment:

Revision 4deb7c1f49b9

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[issue14705] Add 'bool' format character to PyArg_ParseTuple*

2012-05-04 Thread Martin v . Löwis

Martin v. Löwis mar...@v.loewis.de added the comment:

I think there should be a test case also where PyObject_IsTrue gives an 
exception (which I think can happen if __bool__ raises an exception).

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[issue14705] Add 'bool' format character to PyArg_ParseTuple*

2012-05-04 Thread Larry Hastings

Larry Hastings la...@hastings.org added the comment:

 I think there should be a test case also where PyObject_IsTrue gives an
 exception (which I think can happen if __bool__ raises an exception).

I'd be happy to add such a test, but I don't know of any types like that.  Can 
anyone suggest one?

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[issue14705] Add 'bool' format character to PyArg_ParseTuple*

2012-05-04 Thread Martin v . Löwis

Martin v. Löwis mar...@v.loewis.de added the comment:

 I think there should be a test case also where PyObject_IsTrue gives an
 exception (which I think can happen if __bool__ raises an exception).

 I'd be happy to add such a test, but I don't know of any types like  
 that.  Can anyone suggest one?

class NotTrue:
 def __bool__(self):
 raise NotImplementedError

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[issue14705] Add 'bool' format character to PyArg_ParseTuple*

2012-05-04 Thread Larry Hastings

Larry Hastings la...@hastings.org added the comment:

Added test forcing a failure for 'p' (and 'P').  This made me have to handle 
errors a little differently, so it was definitely good to test it.  Thanks for 
the suggestion, Martin!

Also changed wording in documentation ever-so-slightly.

--
Added file: http://bugs.python.org/file25453/larry.parse.tuple.p.and.P.2.diff

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[issue14705] Add 'bool' format character to PyArg_ParseTuple*

2012-05-04 Thread Eric V. Smith

Eric V. Smith e...@trueblade.com added the comment:

Now that I think about this some more, I think I'd structure the 'p' tests as:

for expr in [False, None, True, 1, 0]:  # add the rest
   self.assertEqual(bool(expr), getargs_p(expr))

Since the salient point is that 'p' returns the same value as bool(), right?

And for the one that raises an exception, you'll have to check that bool and 
getargs_p both raise the same type of exception.

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[issue14705] Add 'bool' format character to PyArg_ParseTuple*

2012-05-04 Thread Serhiy Storchaka

Serhiy Storchaka storch...@gmail.com added the comment:

 Serily: why would you unhesitatingly prefer 'P' to 'p'?

My name is Serhiy. :)

'P' has the advantage that you can safely backward-compatibly remove the
restriction by replacing 'P' on 'p'. :)

 I also found some funny in-between cases.

This is historical legacy, some still use 1/0 instead True/False. In the
end, bool subclasses int. But we have no middlecase for latin 'P'.

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[issue14720] sqlite3 microseconds

2012-05-04 Thread Antoine Pitrou

Changes by Antoine Pitrou pit...@free.fr:


--
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versions: +Python 2.7, Python 3.3

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[issue14705] Add 'bool' format character to PyArg_ParseTuple*

2012-05-04 Thread Serhiy Storchaka

Serhiy Storchaka storch...@gmail.com added the comment:

 Since the salient point is that 'p' returns the same value as bool(), right?

Yes, and bool_new() is a candidate number one for using new feature.

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[issue14705] Add 'bool' format character to PyArg_ParseTuple*

2012-05-04 Thread Eric V. Smith

Eric V. Smith e...@trueblade.com added the comment:

If bool_new() is going to use 'p', then my suggestion shouldn't be the only 
test of 'p'.

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[issue14705] Add 'bool' format character to PyArg_ParseTuple*

2012-05-04 Thread Mark Dickinson

Mark Dickinson dicki...@gmail.com added the comment:

In this line in the patch (Python/getargs.c):

+if (val == -1 || PyErr_Occurred()) {

Isn't that call to PyErr_Occurred() redundant?

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[issue14721] httplib doesn't specify content-length header for POST requests without data

2012-05-04 Thread Jesús Cea Avión

Jesús Cea Avión j...@jcea.es added the comment:

Could you provide a patch?

Does this affect  3.x too?

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[issue14721] httplib doesn't specify content-length header for POST requests without data

2012-05-04 Thread Ezio Melotti

Changes by Ezio Melotti ezio.melo...@gmail.com:


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stage:  - test needed
type:  - behavior

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[issue14721] httplib doesn't specify content-length header for POST requests without data

2012-05-04 Thread Arve Knudsen

Arve Knudsen arve.knud...@gmail.com added the comment:

I can look into patch and 3.x tonight I think. Should I provide a test with an 
eventual patch?

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[issue14722] Overflow in parsing 'float' parameters in PyArg_ParseTuple*

2012-05-04 Thread Serhiy Storchaka

New submission from Serhiy Storchaka storch...@gmail.com:

In function convertsimple() in Python/getargs.c possible converting out of 
float range value from double to float.

Fortunately, 'f' format character is not used in CPython source code. But it 
can be used in the extensions.

Tests will be later.

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keywords: patch
messages: 159937
nosy: storchaka
priority: normal
severity: normal
status: open
title: Overflow in parsing 'float' parameters in PyArg_ParseTuple*
versions: Python 2.7, Python 3.2, Python 3.3
Added file: http://bugs.python.org/file25454/getargs_float_overflow.patch

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[issue14721] httplib doesn't specify content-length header for POST requests without data

2012-05-04 Thread Jesús Cea Avión

Jesús Cea Avión j...@jcea.es added the comment:

Patch with test, please :-).

I know it is a pain in the ass, but the result is having a higher quality 
python.

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[issue14722] Overflow in parsing 'float' parameters in PyArg_ParseTuple*

2012-05-04 Thread Mark Dickinson

Mark Dickinson dicki...@gmail.com added the comment:

I don't think this change should be made for 2.7 or 3.2, since it has potential 
to break existing code.

Though technically, conversion of an out-of-range double to a float gives 
undefined behaviour (C99 6.3.1.5p2), I'm willing to bet that most current 
compilers just happily return +-infinity in these cases, and there's probably 
code out there that would break if we changed this.

So for 2.7 or 3.2, we could just return +-inf here instead.  Though even that 
isn't quite right if you're picky about corner cases, since there are some 
values *just* outside [-FLOAT_MAX, FLOAT_MAX] that should still round to 
+-FLOAT_MAX under round-to-nearest.

I suggest leaving this alone for 2.7 and 3.2

For 3.3, it's not clear to me whether it's better to return +-inf or to raise 
here.

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[issue14722] Overflow in parsing 'float' parameters in PyArg_ParseTuple*

2012-05-04 Thread Mark Dickinson

Changes by Mark Dickinson dicki...@gmail.com:


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[issue14722] Overflow in parsing 'float' parameters in PyArg_ParseTuple*

2012-05-04 Thread Mark Dickinson

Mark Dickinson dicki...@gmail.com added the comment:

I was just remembering that I was *sure* I'd seen the double-float avoiding 
undefined behaviour issue mentioned on a C mailing list not so long ago.  Turns 
out that there was a good reason for me remembering that...


https://groups.google.com/group/comp.lang.c/browse_thread/thread/5d93cc742025b298

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[issue14722] Overflow in parsing 'float' parameters in PyArg_ParseTuple*

2012-05-04 Thread Mark Dickinson

Changes by Mark Dickinson dicki...@gmail.com:


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[issue14721] httplib doesn't specify content-length header for POST requests without data

2012-05-04 Thread Antoine Pitrou

Changes by Antoine Pitrou pit...@free.fr:


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versions: +Python 3.2, Python 3.3

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[issue14720] sqlite3 microseconds

2012-05-04 Thread Antoine Pitrou

Antoine Pitrou pit...@free.fr added the comment:

Can be reproduced with:

 con = sqlite3.connect(:memory:, detect_types=sqlite3.PARSE_DECLTYPES)
 cur = con.cursor()
 cur.execute(CREATE TABLE t (x TIMESTAMP))
sqlite3.Cursor object at 0x7f90a4f69ea0
 cur.execute(INSERT INTO t (x) VALUES ('2012-04-04 15:06:00.456'))
sqlite3.Cursor object at 0x7f90a4f69ea0
 cur.execute(SELECT * FROM t)
sqlite3.Cursor object at 0x7f90a4f69ea0
 cur.fetchall()
[(datetime.datetime(2012, 4, 4, 15, 6, 0, 456),)]

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[issue14721] httplib doesn't specify content-length header for POST requests without data

2012-05-04 Thread Piotr Dobrogost

Piotr Dobrogost p...@bugs.python.dobrogost.net added the comment:

 Fiddler reports that it receives the following headers for the POST request

Python 3.2.3 on Windows Vista 64bit gives the same output for

import http.client
conn = http.client.HTTPConnection('localhost',)
conn.request(POST, /post, , {})
conn.close()

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[issue14721] httplib doesn't specify content-length header for POST requests without data

2012-05-04 Thread Éric Araujo

Changes by Éric Araujo mer...@netwok.org:


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[issue14710] pkgutil.get_loader is broken

2012-05-04 Thread Éric Araujo

Changes by Éric Araujo mer...@netwok.org:


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[issue14093] Mercurial version information not appearing in Windows builds

2012-05-04 Thread Vinay Sajip

Vinay Sajip vinay_sa...@yahoo.co.uk added the comment:

I'd like to commit this soon. Any chance of a review? It's a very small patch, 
so it shouldn't need much time.

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[issue14654] Faster utf-8 decoding

2012-05-04 Thread Antoine Pitrou

Antoine Pitrou pit...@free.fr added the comment:

64-bit Linux, Intel Core i5-2500K CPU @ 3.30GHz:

  vanilla 3.3   patch 2 patch 3

utf-8 'A'*1   6931 (+3%)7115 (+0%)  7117
utf-8 'A'*+'\x80' 2347 (+1%)2410 (-2%)  2360
utf-8 'A'*+'\u0100'   2279 (+1%)2282 (+1%)  2310
utf-8 'A'*+'\u8000'   2264 (+2%)2275 (+1%)  2300
utf-8 'A'*+'\U0001'   2351 (+0%)2283 (+3%)  2359
utf-8 '\x80'*1516 (+8%) 558 (+0%)   559
utf-8   '\x80'+'A'*   859 (+0%) 868 (-1%)   860
utf-8 '\x80'*+'\u0100'526 (+6%) 558 (+0%)   558
utf-8 '\x80'*+'\u8000'535 (+4%) 558 (+0%)   558
utf-8 '\x80'*+'\U0001'525 (+6%) 559 (-0%)   558
utf-8 '\u0100'*1  517 (+6%) 548 (+0%)   548
utf-8   '\u0100'+'A'* 818 (+0%) 820 (+0%)   821
utf-8   '\u0100'+'\x80'*  517 (+6%) 548 (+0%)   548
utf-8 '\u0100'*+'\u8000'  525 (+4%) 548 (+0%)   548
utf-8 '\u0100'*+'\U0001'  517 (+6%) 549 (+0%)   549
utf-8 '\u8000'*1  490 (-8%) 433 (+4%)   451
utf-8   '\u8000'+'A'* 818 (+0%) 819 (+0%)   821
utf-8   '\u8000'+'\x80'*  529 (+4%) 548 (+0%)   548
utf-8   '\u8000'+'\u0100'*529 (+4%) 548 (+0%)   548
utf-8 '\u8000'*+'\U0001'  470 (-4%) 451 (+0%)   451
utf-8 '\U0001'*1  554 (-18%)427 (+6%)   453
utf-8   '\U0001'+'A'* 938 (+0%) 927 (+2%)   941
utf-8   '\U0001'+'\x80'*  572 (+4%) 595 (+0%)   595
utf-8   '\U0001'+'\u0100'*571 (+4%) 595 (+0%)   595
utf-8   '\U0001'+'\u8000'*503 (-4%) 481 (+0%)   482

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[issue14703] Update PEP metaprocesses to describe PEP czar role

2012-05-04 Thread Éric Araujo

Changes by Éric Araujo mer...@netwok.org:


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[issue14693] hashlib fallback modules should be built even if openssl *is* available at build time

2012-05-04 Thread Éric Araujo

Changes by Éric Araujo mer...@netwok.org:


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[issue14093] Mercurial version information not appearing in Windows builds

2012-05-04 Thread Martin v . Löwis

Martin v. Löwis mar...@v.loewis.de added the comment:

Please go ahead and apply it.

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[issue14721] httplib doesn't specify content-length header for POST requests without data

2012-05-04 Thread Arve Knudsen

Arve Knudsen arve.knud...@gmail.com added the comment:

Which HTTP methods should we auto-define content-length for? POST and PUT?  I 
noticed that my first attempt at a patch would define content-length also for 
GET requests, which broke a unit test (test_ipv6host_header).

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[issue14662] shutil.move doesn't handle ENOTSUP raised by chflags on OS X

2012-05-04 Thread Antoine Pitrou

Antoine Pitrou pit...@free.fr added the comment:

Looks ok to me, but I don't have a system with os.chflags to test on.

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[issue14678] Update zipimport to support importlib.invalidate_caches()

2012-05-04 Thread Brett Cannon

Brett Cannon br...@python.org added the comment:

I should mention I have a version from importers that is probably out-of-date: 
http://code.google.com/p/importers/source/browse/importers/zip.py

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[issue11618] Locks broken wrt timeouts on Windows

2012-05-04 Thread Antoine Pitrou

Antoine Pitrou pit...@free.fr added the comment:

I agree that Martin that it's not a good idea to add dead code.

Furthermore, you patch has:

+#ifndef _PY_EMULATED_WIN_CV
+#define _PY_EMULATED_WIN_CV 0  /* use emulated condition variables */
+#endif
+
+#if !defined NTDDI_VISTA || NTDDI_VERSION  NTDDI_VISTA
+#undef _PY_EMULATED_WIN_CV
+#define _PY_EMULATED_WIN_CV 1
+#endif

so am I right to understand that when compiled under Vista or later, it will 
produce an XP-incompatible binary?

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[issue14711] Remove os.stat_float_times

2012-05-04 Thread Antoine Pitrou

Antoine Pitrou pit...@free.fr added the comment:

+1 for deprecating.

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[issue2377] Replace __import__ w/ importlib.__import__

2012-05-04 Thread Brett Cannon

Changes by Brett Cannon br...@python.org:


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[issue11943] Add TLS-SRP (RFC 5054) support to ssl, _ssl, http, and urllib

2012-05-04 Thread Antoine Pitrou

Antoine Pitrou pit...@free.fr added the comment:

Quinn, are you planning to work on an updated patch?

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[issue14722] Overflow in parsing 'float' parameters in PyArg_ParseTuple*

2012-05-04 Thread Serhiy Storchaka

Serhiy Storchaka storch...@gmail.com added the comment:

I also thought about ±∞. But PyLong_AsDouble() raises OverflowError for
out-of-range value. And it checks strictly out of ±DBL_MAX.

Because float(10**1000) returns no float('inf'), but raises an
exception, I think that returning ±∞ will be wrong.

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[issue14692] json.loads parse_constant callback not working anymore

2012-05-04 Thread Terry J. Reedy

Changes by Terry J. Reedy tjre...@udel.edu:


--
title: json.joads parse_constant callback not working anymore - json.loads 
parse_constant callback not working anymore

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[issue14722] Overflow in parsing 'float' parameters in PyArg_ParseTuple*

2012-05-04 Thread Mark Dickinson

Mark Dickinson dicki...@gmail.com added the comment:

 And it checks strictly out of ±DBL_MAX.

Nope.  Values just larger than DBL_MAX won't raise OverflowError here.

 Because float(10**1000) returns no float('inf'), but raises an
 exception, I think that returning ±∞ will be wrong.

Possibly.  But there's also the fact that 3.2 already returns inf here;  we'd 
need a pretty good reason to break that.  Like I said, I'm not sure which the 
right way to go here is.

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[issue14721] httplib doesn't specify content-length header for POST requests without data

2012-05-04 Thread Arve Knudsen

Arve Knudsen arve.knud...@gmail.com added the comment:

Actually, when inspecting the HTTP requests sent by Chrome for the different 
methods (a great little Chrome app called Postman let me fire requests 
manually), I found that content-length would be set for most methods. I could 
confirm that 'content-length: 0' would be set for the following methods: POST, 
PUT, PATCH, DELETE and HEAD.

I guess it should be good enough to model that behaviour in httplib?

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[issue14701] parser module doesn't support 'raise ... from'

2012-05-04 Thread Terry J. Reedy

Terry J. Reedy tjre...@udel.edu added the comment:

Just curious, should The parser module provides an interface to Python’s 
internal parser and byte-code compiler. say CPython's?

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[issue14723] Misleading error message for str.format()

2012-05-04 Thread Mark Theisen

New submission from Mark Theisen mark.thei...@digitecinc.com:

When I run this code: '{0:i}'.format(None)

I get this error:
ValueError: Unknown format code 'i' for object of type 'str'

This seems misleading because None is of Type 'NoneType'. I was expecting the 
error to say something to the effect of:
Unknown format code 'i' for object of type 'NoneType'

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messages: 159955
nosy: theisenm
priority: normal
severity: normal
status: open
title: Misleading error message for str.format()
type: behavior
versions: Python 2.7

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[issue14701] parser module doesn't support 'raise ... from'

2012-05-04 Thread Mark Dickinson

Mark Dickinson dicki...@gmail.com added the comment:

Hmm.  Possibly, yes.  At least, it should be clear somehow from the docs that 
the parser, symbol, token and ast modules are CPython specific.  (And possibly 
tokenize, too.)

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[issue14723] Misleading error message for str.format()

2012-05-04 Thread Eric V. Smith

Eric V. Smith e...@trueblade.com added the comment:

This is a duplicate of issue 13790. See the comments there for why it works 
this way.

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resolution:  - duplicate
status: open - closed
superseder:  - In str.format an incorrect error message for list, tuple, dict, 
set

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[issue13790] In str.format an incorrect error message for list, tuple, dict, set

2012-05-04 Thread Ezio Melotti

Changes by Ezio Melotti ezio.melo...@gmail.com:


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[issue14721] httplib doesn't specify content-length header for POST requests without data

2012-05-04 Thread Jesús Cea Avión

Jesús Cea Avión j...@jcea.es added the comment:

HEAD?. It doesn't make sense in HEAD if it doesn't make sense in GET.

Looking around, I found this, to mud the water a little bit more: 
http://fixunix.com/tcp-ip/66198-http-rfc-related-question-content-length-0-get-request.html.

Not being explicit about this is a bug in the specification, I think.

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[issue14657] Avoid two importlib copies

2012-05-04 Thread Roundup Robot

Roundup Robot devn...@psf.upfronthosting.co.za added the comment:

New changeset 257cbd2fac38 by Brett Cannon in branch 'default':
Issue #13959: Re-implement imp.get_suffixes() in Lib/imp.py.
http://hg.python.org/cpython/rev/257cbd2fac38

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[issue13959] Re-implement parts of imp in pure Python

2012-05-04 Thread Roundup Robot

Roundup Robot devn...@psf.upfronthosting.co.za added the comment:

New changeset 257cbd2fac38 by Brett Cannon in branch 'default':
Issue #13959: Re-implement imp.get_suffixes() in Lib/imp.py.
http://hg.python.org/cpython/rev/257cbd2fac38

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[issue13959] Re-implement parts of imp in pure Python

2012-05-04 Thread Brett Cannon

Brett Cannon br...@python.org added the comment:

OK, I'm waiting on issue #14657 (avoiding the _frozen_importlib/importlib 
dichotomy) is resolved before I document the new imp.extension_suffixes() as it 
would be good to know where I should pull in the source and bytecode suffixes.

I think this only leaves get_magic() and get_tag() as the only things to move + 
trying to figure out how to handle PyImport_ExecCodeModuleObject() and its grip 
on various bits of C code.

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[issue14722] Overflow in parsing 'float' parameters in PyArg_ParseTuple*

2012-05-04 Thread Serhiy Storchaka

Serhiy Storchaka storch...@gmail.com added the comment:

Here is a patch with tests.

 Nope.  Values just larger than DBL_MAX won't raise OverflowError here.

Isn't that a little bit. But values that rounded to DBL_MAX can raise
OverflowError. In any case it's too difficult to achieve strict behavior
in this corner case.

 Possibly.  But there's also the fact that 3.2 already returns inf here;  we'd 
 need a pretty good reason to break that.

In the end, we may add the environment variable
PYTHONDONTRAISEEXCEPTIONIFFLOATOVERFLOWS to control this behaviour.

 Like I said, I'm not sure which the right way to go here is.

Take a look at the tests and may be you'll see the system.

--
Added file: http://bugs.python.org/file25455/getargs_float_overflow_2.patch

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___diff -r 01824bf55376 Lib/test/test_getargs2.py
--- a/Lib/test/test_getargs2.py Fri May 04 11:06:09 2012 -0400
+++ b/Lib/test/test_getargs2.py Fri May 04 22:07:37 2012 +0300
@@ -1,4 +1,5 @@
 import unittest
+import math
 from test import support
 from _testcapi import getargs_keywords, getargs_keyword_only
 
@@ -22,6 +23,9 @@
  K * unsigned long long none
  L long long LLONG_MIN..LLONG_MAX
 
+ f float -FLT_MAX..FLT_MAX
+ d double -DBL_MAX..DBL_MAX
+
  Notes:
 
  * New format codes.
@@ -39,17 +43,25 @@
 
 from _testcapi import UCHAR_MAX, USHRT_MAX, UINT_MAX, ULONG_MAX, INT_MAX, \
  INT_MIN, LONG_MIN, LONG_MAX, PY_SSIZE_T_MIN, PY_SSIZE_T_MAX, \
- SHRT_MIN, SHRT_MAX
+ SHRT_MIN, SHRT_MAX, \
+ FLT_MAX, FLT_EPSILON, DBL_MAX, DBL_EPSILON
 
 # fake, they are not defined in Python's header files
 LLONG_MAX = 2**63-1
 LLONG_MIN = -2**63
 ULLONG_MAX = 2**64-1
 
+INF = float('inf')
+NAN = float('nan')
+
 class Int:
 def __int__(self):
 return 99
 
+class Float:
+def __float__(self):
+return 34.125
+
 class Unsigned_TestCase(unittest.TestCase):
 def test_b(self):
 from _testcapi import getargs_b
@@ -215,6 +227,50 @@
 self.assertEqual(VERY_LARGE  ULLONG_MAX, getargs_K(VERY_LARGE))
 
 
+class Float_TestCase(unittest.TestCase):
+def test_f(self):
+from _testcapi import getargs_f
+# f returns 'float', and does range checking (-FLT_MAX ... FLT_MAX)
+self.assertRaises(TypeError, getargs_f, Hello)
+self.assertEqual(34.125, getargs_f(Float()))
+
+self.assertRaises(OverflowError, getargs_f, -int(FLT_MAX) - 
int(FLT_MAX*FLT_EPSILON))
+self.assertEqual(FLT_MAX, getargs_f(FLT_MAX))
+self.assertEqual(-FLT_MAX, getargs_f(-FLT_MAX))
+self.assertRaises(OverflowError, getargs_f, int(FLT_MAX) + 
int(FLT_MAX*FLT_EPSILON))
+if -FLT_MAX != -FLT_MAX - FLT_MAX*FLT_EPSILON:
+self.assertRaises(OverflowError, getargs_f, -FLT_MAX - 
FLT_MAX*FLT_EPSILON)
+if FLT_MAX != FLT_MAX + FLT_MAX*FLT_EPSILON:
+self.assertRaises(OverflowError, getargs_f, FLT_MAX + 
FLT_MAX*FLT_EPSILON)
+
+self.assertEqual(0, getargs_f(0))
+self.assertEqual(34.125, getargs_f(34.125))
+self.assertRaises(OverflowError, getargs_f, 10**1000)
+
+self.assertEqual(INF, getargs_f(INF))
+self.assertEqual(-INF, getargs_f(-INF))
+self.assertTrue(math.isnan(getargs_f(NAN)))
+
+def test_d(self):
+from _testcapi import getargs_d
+# d returns 'double', and does range checking (-DBL_MAX ... DBL_MAX)
+self.assertRaises(TypeError, getargs_d, Hello)
+self.assertEqual(34.125, getargs_d(Float()))
+
+self.assertRaises(OverflowError, getargs_d, -int(DBL_MAX) - 
int(DBL_MAX*DBL_EPSILON))
+self.assertEqual(DBL_MAX, getargs_d(DBL_MAX))
+self.assertEqual(-DBL_MAX, getargs_d(-DBL_MAX))
+self.assertRaises(OverflowError, getargs_d, int(DBL_MAX) + 
int(DBL_MAX*DBL_EPSILON))
+
+self.assertEqual(0, getargs_d(0))
+self.assertEqual(34.125, getargs_d(34.125))
+self.assertRaises(OverflowError, getargs_d, 10**1000)
+
+self.assertEqual(INF, getargs_d(INF))
+self.assertEqual(-INF, getargs_d(-INF))
+self.assertTrue(math.isnan(getargs_d(NAN)))
+
+
 class Tuple_TestCase(unittest.TestCase):
 def test_tuple(self):
 from _testcapi import getargs_tuple
@@ -510,6 +566,7 @@
 tests = [
 Signed_TestCase,
 Unsigned_TestCase,
+Float_TestCase,
 Tuple_TestCase,
 Keywords_TestCase,
 KeywordOnly_TestCase,
diff -r 01824bf55376 Modules/_testcapimodule.c
--- a/Modules/_testcapimodule.c Fri May 04 11:06:09 2012 -0400
+++ b/Modules/_testcapimodule.c Fri May 04 22:07:37 2012 +0300
@@ -992,6 +992,24 @@
 }
 
 static PyObject *
+getargs_f(PyObject *self, PyObject *args)
+{
+float value;
+if (!PyArg_ParseTuple(args, f, value))
+return NULL;
+return PyFloat_FromDouble(value);
+}
+
+static PyObject *
+getargs_d(PyObject 

[issue14722] Overflow in parsing 'float' parameters in PyArg_ParseTuple*

2012-05-04 Thread Serhiy Storchaka

Changes by Serhiy Storchaka storch...@gmail.com:


--
type:  - enhancement
versions:  -Python 2.7, Python 3.2

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[issue14721] httplib doesn't specify content-length header for POST requests without data

2012-05-04 Thread Arve Knudsen

Arve Knudsen arve.knud...@gmail.com added the comment:

Here's my initial proposal for a patch against httplib, based on the 2.7 branch 
of cpython repository. I've included a couple of tests, which check that when 
content is empty, content-length is set to 0 for certain methods (POST/PUT etc) 
and not specified for others.

--
keywords: +patch
Added file: http://bugs.python.org/file25456/httplib-2.7.patch

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[issue14721] httplib doesn't specify content-length header for POST requests without data

2012-05-04 Thread Arve Knudsen

Arve Knudsen arve.knud...@gmail.com added the comment:

Yes, I agree it doesn't make much sense for HEAD AFAICT, but Chrome does it. 
Maybe there's a reason?

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[issue14722] Overflow in parsing 'float' parameters in PyArg_ParseTuple*

2012-05-04 Thread Mark Dickinson

Mark Dickinson dicki...@gmail.com added the comment:

 But values that rounded to DBL_MAX can raise
 OverflowError. In any case it's too difficult to achieve strict behavior
 in this corner case.

Well, PyLong_AsDouble *does* achieve strict behaviour in this corner case :-).  
Integers less than 0.5 * (sys.float_info.max + 2**1024) in absolute value give 
finite results;  integers greater than or equal to that bound produce an 
OverflowError.

 Take a look at the tests and may be you'll see the system.

I don't see how looking at the tests helps with making a decision about 
breaking backwards compatibility or not. :-)

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[issue14093] Mercurial version information not appearing in Windows builds

2012-05-04 Thread Roundup Robot

Roundup Robot devn...@psf.upfronthosting.co.za added the comment:

New changeset 4459d82ff127 by Vinay Sajip in branch 'default':
Closes #14093: Added Mercurial version information to Windows builds.
http://hg.python.org/cpython/rev/4459d82ff127

--
nosy: +python-dev
resolution:  - fixed
stage: patch review - committed/rejected
status: open - closed

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[issue14578] importlib doesn't check Windows registry for paths

2012-05-04 Thread Brett Cannon

Brett Cannon br...@python.org added the comment:

FYI, I just deleted PC/import_nt.c as it stopped compiling after my removal of 
_imp.get_suffixes(). Obviously hg has the history of the file so if someone 
needs to resurrect it there shouldn't be much issue.

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[issue13959] Re-implement parts of imp in pure Python

2012-05-04 Thread Roundup Robot

Roundup Robot devn...@psf.upfronthosting.co.za added the comment:

New changeset 22b0689346f9 by Brett Cannon in branch 'default':
Issue #13959: Move module type constants to Lib/imp.py.
http://hg.python.org/cpython/rev/22b0689346f9

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[issue14662] shutil.move doesn't handle ENOTSUP raised by chflags on OS X

2012-05-04 Thread Ned Deily

Ned Deily n...@acm.org added the comment:

I will test and check it in next week if still open.

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[issue14724] kill imp.load_dynamic's third argument

2012-05-04 Thread Brett Cannon

Brett Cannon br...@python.org added the comment:

+1

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[issue14724] kill imp.load_dynamic's third argument

2012-05-04 Thread Antoine Pitrou

New submission from Antoine Pitrou pit...@free.fr:

imp.load_dynamic's third optional argument doesn't seem used in the wild, and I 
don't think it's correctly implemented by the current code.
It would seem reasonable to kill it.

--
components: Interpreter Core, Library (Lib)
messages: 159971
nosy: brett.cannon, eric.smith, ncoghlan, pitrou
priority: normal
severity: normal
status: open
title: kill imp.load_dynamic's third argument
versions: Python 3.3

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[issue14725] test_multiprocessing failure under Windows

2012-05-04 Thread Antoine Pitrou

New submission from Antoine Pitrou pit...@free.fr:

There was this failure on one of the XP buildbots:


Process Process-269:
Traceback (most recent call last):
  File 
D:\cygwin\home\db3l\buildarea\3.x.bolen-windows\build\lib\multiprocessing\process.py,
 line 258, in _bootstrap
self.run()
  File 
D:\cygwin\home\db3l\buildarea\3.x.bolen-windows\build\lib\multiprocessing\process.py,
 line 95, in run
self._target(*self._args, **self._kwargs)
  File 
D:\cygwin\home\db3l\buildarea\3.x.bolen-windows\build\lib\test\test_multiprocessing.py,
 line 1980, in _listener
new_conn = l.accept()
  File 
D:\cygwin\home\db3l\buildarea\3.x.bolen-windows\build\lib\multiprocessing\connection.py,
 line 444, in accept
c = self._listener.accept()
  File 
D:\cygwin\home\db3l\buildarea\3.x.bolen-windows\build\lib\multiprocessing\connection.py,
 line 624, in accept
ov = _winapi.ConnectNamedPipe(handle, overlapped=True)
BrokenPipeError: [Error 232] The pipe is being closed

==
ERROR: test_pickling 
(test.test_multiprocessing.WithProcessesTestPicklingConnections)
--
Traceback (most recent call last):
  File 
D:\cygwin\home\db3l\buildarea\3.x.bolen-windows\build\lib\multiprocessing\connection.py,
 line 308, in _recv_bytes
nread, err = ov.GetOverlappedResult(True)
BrokenPipeError: [Error 109] The pipe has been ended

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File 
D:\cygwin\home\db3l\buildarea\3.x.bolen-windows\build\lib\test\test_multiprocessing.py,
 line 2030, in test_pickling
new_conn = lconn.recv()
  File 
D:\cygwin\home\db3l\buildarea\3.x.bolen-windows\build\lib\multiprocessing\connection.py,
 line 252, in recv
buf = self._recv_bytes()
  File 
D:\cygwin\home\db3l\buildarea\3.x.bolen-windows\build\lib\multiprocessing\connection.py,
 line 317, in _recv_bytes
raise EOFError
EOFError


(http://www.python.org/dev/buildbot/all/builders/x86%20XP-4%203.x/builds/6534/steps/test/logs/stdio)

--
components: Library (Lib), Tests, Windows
messages: 159973
nosy: pitrou, sbt
priority: normal
severity: normal
status: open
title: test_multiprocessing failure under Windows
type: behavior
versions: Python 3.3

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[issue14726] Lib/email/*.py use an EMPTYSTRING global instead of ''

2012-05-04 Thread Gregory P. Smith

New submission from Gregory P. Smith g...@krypto.org:

Lib/email/*.py are fond of using

EMPTYSTRING = ''

and within the code:

EMPTYSTRING.join(...)

instead of just writing:

''.join(...)

They should just do the latter.  It'll avoid a name lookup and look less silly 
to people reading the code.  ;)

--
messages: 159974
nosy: gregory.p.smith
priority: low
severity: normal
status: open
title: Lib/email/*.py use an EMPTYSTRING global instead of ''
versions: Python 3.3

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[issue14726] Lib/email/*.py use an EMPTYSTRING global instead of ''

2012-05-04 Thread R. David Murray

R. David Murray rdmur...@bitdance.com added the comment:

I've always wondered why the code did that.  If Barry doesn't have a good 
reason for it, I'll refactor it at some point.

--
assignee:  - r.david.murray
nosy: +barry, r.david.murray
type:  - performance

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[issue14695] Tools/parser/unparse.py is out of date.

2012-05-04 Thread R. David Murray

R. David Murray rdmur...@bitdance.com added the comment:

There is a test_tools file now.  test_unparse could be called from it.

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[issue14702] os.makedirs breaks under autofs directories

2012-05-04 Thread R. David Murray

R. David Murray rdmur...@bitdance.com added the comment:

Hynek: it doesn't seem like that would work, since legitimate EPERM errors are 
much more likely.

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[issue14726] Lib/email/*.py use an EMPTYSTRING global instead of ''

2012-05-04 Thread Barry A. Warsaw

Barry A. Warsaw ba...@python.org added the comment:

On May 05, 2012, at 01:25 AM, R. David Murray wrote:

I've always wondered why the code did that.  If Barry doesn't have a good
reason for it, I'll refactor it at some point.

A long time ago, Tim (IIRC) expressed an opinion that using the variable makes
the code more readable.  After having seen so much code that uses the string
literals over the years, I wholeheartedly agree with that opinion.

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