[Python-Dev] Python 2.5.1
Hello
I downloaded Python's 2.5.1 (final) bz2 source archive
the other day to try to compile it in MinGW. I have
noted down the following observations that might be of
interest.
1. The bz2 archive ships with
\Modules\collectionsmodule.c instead of the
\Modules\_collectionsmodule.c used in the 2.5 SVN
branch. In fact the collectionsmodule.c was removed
some time ago.
2. If _collectionsmodule.c is the one to be used in
branch and source then it follows that \PC\config.c
needs an update.
3. test_1686475 of test_os appears to rely on the
existence of "c:\pagefile.sys" like so:
def test_1686475(self):
# Verify that an open file can be stat'ed
try:
os.stat(r"c:\pagefile.sys")
except WindowsError, e:
if e == 2: # file does not exist;
cannot run test
return
self.fail("Could not stat
pagefile.sys")
But since that file does not appear to be in my C
drive and since the Windows error returned is not a
numeric, but rather a string of the sort: "[Error 5]
Access is denied: 'c:\\pagefile.sys'" then that test
fails for me both in the MinGW compiled Python and in
the officially distributed one.
4. Also test_1565150 of test_os which reads as
follows:
# Restrict test to Win32, since there is no
guarantee other
# systems support centiseconds
if sys.platform == 'win32':
def test_1565150(self):
t1 = 1159195039.25
os.utime(self.fname, (t1, t1))
self.assertEquals(os.stat(self.fname).st_mtime, t1)
fails in the MinGW compiled Python with the following
message:
==
FAIL: test_1565150 (test.test_os.StatAttributeTests)
--
Traceback (most recent call last):
File "G:\projs\py25\python\r25\lib\test\test_os.py",
line 241, in test_1565150
self.assertEquals(os.stat(self.fname).st_mtime,
t1)
AssertionError: 1159195040 != 1159195039.25
If the same test passes in the official CPython on the
same machine (and it does), can it then be deduced
that this is not a system's issue but a compiler one?
Thanks
Khalid
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Re: [Python-Dev] whitespace normalization
> Just a little FYI, python-mode (the one Barry and I manage - dunno > about the one distributed w/ GNU Emacs these days) is one of those > tools that leaves trailing whitespace behind when advancing to the > next line.. Okay, I figured this out. The dangling whitespace turds are caused by LF or RET followed by a regular cursor motion keypress (e.g. C-n or the arrow keys) which move the cursor away from that line. Those commands operate outside python-mode's control there so it doesn't get the opportunity to remove the whitespace before moving the cursor. XEmacs (at least) doesn't have a cursor-motion-hook so there's no clean way to do this. I've been using Emacs for so many years that my central control program long ago pushed out most of the basic cursor motion control code to ganglia which reside in my wrists. The channel is full duplex but highly assymetric. The upload speed is very slow. It thus takes a couple days to realize in my frontal cortex how this low level stuff works... Skip ___ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
[Python-Dev] New operations in Decimal
The following are the new operations in the decimal module that we'll be available according to the last published specification. I wrote here the proposed name by me, the original name between parenthesis, where it will be located between square brackets (C for context and D for the decimal object itself), and a small description of the operation (I specially trimmed the verbose special cases from the description, if you want an exact explanation of what does each, read the spec). Note that always it says how many operands it takes. The number implies you're calling it through the context. If called through Decimal, you have to substract one from it (as the first operand will be the number itself in this case). Enjoy it, and any feedback is very appreciated, :) - compare_signal (compare–signal) [CD]: Takes two operands and compares their values numerically (pretty much like compare(), but all NaNs signal, with signaling NaNs taking precedence over quiet NaNs. - fma (fused-multiply-add) [C]: Takes three operands; the first two are multiplied together, using multiply, the third operand is then added to the result of that multiplication, using add, all with only one final rounding. - ln (ln) [CD]: Takes one operand, and the result is the natural (base e) logarithm of the operand. - log10 (log10) [CD]: Takes one operand, and the result is the base 10 logarithm of the operand. - max_mag (max–magnitude), and min_mag (min-magnitude) [CD]: Takes two operands and compares their values numerically with their sign ignored. - next_minus (next–minus) [CD]: Takes one operand and the result is the largest representable number that is smaller than the operand. - next_plus (next–plus) [CD]: Takes one operand and the result is the smallest representable number that is larger than the operand. - next_toward (next–toward) [CD]: Takes two operands and the result is the representable number closest to the first operand (but not the first operand) that is in the direction towards the second operand, unless the operands have the same value. - to_integral_exact (round-to-integral-exact) [C]: Takes one operand. It is similar to the round–to–integral–value (the old to_integral), with the difference the now Inexact and Rounded flags are allowed in the result. The following operations appear in a new section of the specification called "Miscelaneous Operations". Between these are logical operations that take logical operands, which are finite positive non-exponent numbers with a coefficient whose digits must all be either 0 or 1. - and (and), or (or), xor (xor) [CD]: Takes two logical operands, the result is the logical operation applied between each digit. - canonical (canonical) [CD]: Canonical takes one operand, returns the same Decimal object, as we do not have different encodings for the same number. - number_class (class) [CD]: Takes one operando, returns an indication of the class of the operand, where the class is one of the following: "sNaN", "NaN", "–Infinity", "–Normal", "–Subnormal", "–Zero", "+Zero", "+Subnormal", "+Normal" or "+Infinity". - compare_total (compare–total) [CD]: Takes two operands and compares them using their abstract representation rather than their numerical value (a total ordering is defined for all possible abstract representations). - compare_total_mag (compare–total–magnitude) [CD]: Takes two operands and compares them using their abstract representation rather than their numerical value, with their sign ignored and assumed to be 0. - copy_abs (copy-abs) [CD]: Takes one operand, returns a copy of it with the sign set to 0. - copy_negate (copy-negate) [CD]: Takes one operand, returns a copy of it with the sign inverted. - copy_sign (copy–sign) [CD]: Takes two operands, returns a copy of the first operand with the sign equal to the sign of the second operand. - invert (invert) [CD]: Takes one logical operand, the result is the digit-wise inversion of the operand. - is-canonical (is–canonical) [CD]: Takes one operand, returns 1 if the operand is canonical; otherwise returns 0. - is_finite (is–finite) [CD]: Takes one operand, returns 1 if the operand is neither infinite nor a NaN, otherwise returns 0. - is_infinite (is–infinite) [CD]: Takes one operand, returns 1 if the operand is an Infinite, otherwise returns 0. - is_nan (is–NaN) [CD]: Takes one operand, returns 1 if the operand is a quiet or signaling NaN, otherwise returns 0. - is_normal (is–normal) [CD]: Takes one operand, returns 1 if the operand is a positive or negative normal number, otherwise returns 0. - is_qnan (is–qNaN) [CD]: Takes one operand, returns 1 if the operand is a quiet NaN, otherwise returns 0. - is_signed (is–signed) [CD]: Takes one operand, returns 1 if the sign of the operand is 1, otherwise returns 0. - is_snan (is–sNaN) [CD]: Takes one operand, returns 1 if the operand is a signaling NaN, otherwise retur
Re: [Python-Dev] Python 2.5.1
Khalid A. Bakr schrieb: > 1. The bz2 archive ships with > \Modules\collectionsmodule.c instead of the > \Modules\_collectionsmodule.c used in the 2.5 SVN > branch. In fact the collectionsmodule.c was removed > some time ago. Why do you say that? http://svn.python.org/projects/python/branches/release25-maint/Modules/collectionsmodule.c is still present AFAICT. > 2. If _collectionsmodule.c is the one to be used in > branch and source then it follows that \PC\config.c > needs an update. But it isn't the one to be used. > But since that file does not appear to be in my C > drive and since the Windows error returned is not a > numeric, but rather a string of the sort: "[Error 5] > Access is denied: 'c:\\pagefile.sys'" then that test > fails for me both in the MinGW compiled Python and in > the officially distributed one. That's true. Can you come up with a patch? Looking at the error code of the exception should be sufficient; it should be 5 (as the message shows). The exception is *not* a string, but an object. > 4. Also test_1565150 of test_os which reads as > follows: [...] > fails in the MinGW compiled Python with the following > message: > > == > FAIL: test_1565150 (test.test_os.StatAttributeTests) > -- > Traceback (most recent call last): > File "G:\projs\py25\python\r25\lib\test\test_os.py", > line 241, in test_1565150 > > self.assertEquals(os.stat(self.fname).st_mtime, > t1) > AssertionError: 1159195040 != 1159195039.25 That would indicate a bug in the MingW port. > If the same test passes in the official CPython on the > same machine (and it does), can it then be deduced > that this is not a system's issue but a compiler one? Likely, neither nor. My guess is that the MingW port, for some reason, decides not to use the Win32 API to perform stat, but the C library. That is incorrect, as the C library will perform truncation of subsecond time stamps. The compiler itself should have no effect (other than defining different compiler recognition macros). Regards, Martin ___ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
[Python-Dev] Weekly Python Patch/Bug Summary
Patch / Bug Summary ___ Patches : 356 open ( -1) / 3756 closed (+11) / 4112 total (+10) Bugs: 968 open (+10) / 6673 closed (+16) / 7641 total (+26) RFE : 254 open ( +3) / 282 closed ( +2) / 536 total ( +5) New / Reopened Patches __ fixes bug #1703952 - ctypes: problem with large integers (2007-04-19) CLOSED http://python.org/sf/1703972 opened by Alexander Belopolsky minidom Level 1 DOM compliance (2007-04-20) http://python.org/sf/1704134 opened by Jason Orendorff textwrap.py mod. for jython (2007-04-20) CLOSED http://python.org/sf/1704473 opened by Tim Couper test_optparse.py mod. for jython (2007-04-20) http://python.org/sf/1704474 opened by Tim Couper Use MoveFileEx() to implement os.rename() on windows (2007-04-20) http://python.org/sf/1704547 opened by Raghuram Devarakonda interpreter crash when multiplying large lists (2007-04-20) http://python.org/sf/1704621 opened by Daniel Stutzbach Added clearerr() to clear EOF state (2007-04-23) http://python.org/sf/1706039 opened by jos Updated ASTVisitor Classes (2007-04-24) http://python.org/sf/1706323 opened by Yaakov Nemoy Implementation of @abstractmethod for PEP 3119 (2007-04-24) http://python.org/sf/1706989 opened by Guido van Rossum get status output fix for Win32 (2007-04-25) http://python.org/sf/1707753 opened by Ken Phillis Jr. Make isinstance/issubclass overloadable (2007-04-26) http://python.org/sf/1708353 opened by Guido van Rossum Patches Closed __ silenced a compiler warning (2007-04-18) http://python.org/sf/1703268 closed by nnorwitz missing declaration in readline.c (2007-04-18) http://python.org/sf/1703270 closed by nnorwitz ZipFile.printdir fix (2.5) (2007-04-11) http://python.org/sf/1698915 closed by nnorwitz Migrate test_minidom.py to unittest (2007-03-30) http://python.org/sf/1691032 closed by jorend fixes bug #1703952 - ctypes: problem with large integers (2007-04-20) http://python.org/sf/1703972 closed by theller Update to Macintosh library documentation (2007-04-11) http://python.org/sf/1698768 closed by gbrandl textwrap.py mod. for jython (2007-04-20) http://python.org/sf/1704473 closed by gbrandl tarfile bug when opening a file directly (2007-04-05) http://python.org/sf/1695229 closed by gustaebel stream writing support in wave.py (2007-02-05) http://python.org/sf/1652328 closed by nnorwitz PEP 3114 -- next() -> __next__() (2007-03-07) http://python.org/sf/1675363 closed by gbrandl warnings.py gets filename wrong for eval/exec (2007-04-01) http://python.org/sf/1692664 closed by nnorwitz New / Reopened Bugs ___ "t.join(); assert t not in threading.enumerate()" fails (2007-04-19) http://python.org/sf/1703448 opened by Andrew Bennetts have a way to ignore nonexisting locales in locale.setlocale (2007-04-19) http://python.org/sf/1703592 opened by Matthias Klose ctypes: problem with large integers (2007-04-19) http://python.org/sf/1703952 reopened by belopolsky ctypes: problem with large integers (2007-04-19) http://python.org/sf/1703952 opened by Alexander Belopolsky TarFile.addfile() throws a struct.error (2007-04-20) CLOSED http://python.org/sf/1704156 opened by K. C. Wong must run "make" before "make install" (2007-04-20) http://python.org/sf/1704287 opened by Joseph VanAndel Exception message when using subprocess.POpen (2007-04-21) CLOSED http://python.org/sf/1704790 opened by Sam Ruby incorrect return value of unicodedata.lookup() - beoynd BMP (2007-04-21) http://python.org/sf/1704793 opened by vbr contextmanager eats StopIteration (2007-04-22) http://python.org/sf/1705170 opened by Adam Olsen cannot change cursor color in IDLE (2007-04-22) http://python.org/sf/1705362 opened by zorkin 'nonlocal x' at top level crashes interpreter (2007-04-22) CLOSED http://python.org/sf/1705365 opened by John Reese Select() failure (race condition) (2007-04-22) http://python.org/sf/1705393 opened by Ron Garret Error in sys.argv documenation (2007-04-23) CLOSED http://python.org/sf/1705717 opened by Kamil Kisiel pydoc.py has typo. (2007-04-23) CLOSED http://python.org/sf/1705997 opened by charlesmchen SWIG options not being followed in all cases (2007-04-24) CLOSED http://python.org/sf/1706381 opened by Morten Lied Johansen socket.error exceptions not subclass of StandardError (2007-04-24) http://python.org/sf/1706815 opened by John Nagle tarfile fails in 2.5.1 (NoneType has no ...) (2007-04-24) CLOSED http://python.org/sf/1706850 opened by Thomas Leonard Failed to build Python 2.5.1 with sqlite3 (2007-04-24) http://python.org/sf/1706863 opened by Vitaliy Yermolenko lost global variables in m
[Python-Dev] Python 2.5.1
--- "Martin v. Löwis" <[EMAIL PROTECTED]> wrote:
> Khalid A. Bakr schrieb:
> > 1. The bz2 archive ships with
> > \Modules\collectionsmodule.c instead of the
> > \Modules\_collectionsmodule.c used in the 2.5 SVN
> > branch. In fact the collectionsmodule.c was
> removed
> > some time ago.
>
> Why do you say that?
>
>
http://svn.python.org/projects/python/branches/release25-maint/Modules/collectionsmodule.c
>
> is still present AFAICT.
>
> > 2. If _collectionsmodule.c is the one to be used
> in
> > branch and source then it follows that
> \PC\config.c
> > needs an update.
>
> But it isn't the one to be used.
I am sorry. Me repository seems corrupted. Doing a
clean check out of the 2.5 branch as I write this.
> That's true. Can you come up with a patch? Looking
> at the error code of the exception should be
> sufficient;
> it should be 5 (as the message shows). The exception
> is *not* a string, but an object.
Okay. It seems I mixed up WindowsError with the
exception e in my post; at least it is now known that
e is not a number. The patch is short and is as
follows:
Index: Lib/test/test_os.py
===
--- Lib/test/test_os.py (revision 55014)
+++ Lib/test/test_os.py (working copy)
@@ -245,7 +245,8 @@
try:
os.stat(r"c:\pagefile.sys")
except WindowsError, e:
-if e == 2: # file does not exist;
cannot run test
+# file may not exist, or access is
denied; cannot run test
+if e.winerror == 2 or e.winerror ==
5:
return
self.fail("Could not stat
pagefile.sys")
Or do I need to submit this through sourceforge?
> That would indicate a bug in the MingW port.
>
> > If the same test passes in the official CPython on
> the
> > same machine (and it does), can it then be deduced
> > that this is not a system's issue but a compiler
> one?
>
> Likely, neither nor. My guess is that the MingW
> port,
> for some reason, decides not to use the Win32 API to
> perform stat, but the C library. That is incorrect,
> as the C library will perform truncation of
> subsecond
> time stamps. The compiler itself should have no
> effect
> (other than defining different compiler recognition
> macros).
>
> Regards,
> Martin
>
I will try to check what can be done about this.
Regards,
Khalid
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Re: [Python-Dev] Python 2.5.1
> Or do I need to submit this through sourceforge? Please do. Why are you checking for error 2, though, if the error that occurs is 5? Regards, Martin ___ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
Re: [Python-Dev] Python 2.5.1
--- "Martin v. Löwis" <[EMAIL PROTECTED]> wrote: > > Or do I need to submit this through sourceforge? > > Please do. Why are you checking for error 2, though, > if the error that occurs is 5? > > Regards, > Martin > > Done. I was just correcting the previous posted check for error 2; I thought it must have been there for a reason I don't know. Anyway, this part is now removed from patch, which is at: http://python.org/sf/1709112 Regards, Khalid __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ___ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
