Mailman 3 April 2003 - Python-Dev

test_pwd failing
by Guido van Rossum 22 Apr '03

22 Apr '03

Somebody just changed the pwd module. I now get these errors when running test_pwd: [guido@odiug linux]$ ./python ../Lib/test/regrtest.py test_pwd test_pwd test test_pwd failed -- Traceback (most recent call last): File "/mnt/home/guido/projects/python/dist/src/Lib/test/test_pwd.py", line 29, in test_values self.assertEqual(pwd.getpwuid(e.pw_uid), e) File "/mnt/home/guido/projects/python/dist/src/Lib/unittest.py", line 292, in failUnlessEqual raise self.failureException, \ AssertionError: ('guido', 'x', 4102, 4102, 'Guido van Rossum', '/home/guido', '/bin/bash') != ('guido1', 'x', 4102, 4102, 'Guido van Rossum', '/home/guido1', '/bin/bash') 1 test failed: test_pwd [guido@odiug linux]$ The last two lines of my /etc/passwd file are: guido:x:4102:4102:Guido van Rossum:/home/guido:/bin/bash guido1:x:4102:4102:Guido van Rossum:/home/guido1:/bin/bash --Guido van Rossum (home page: http://www.python.org/~guido/)

5 8

Magic number needs upgrade
by Guido van Rossum 22 Apr '03

22 Apr '03

Now that we have new bytecode optimizations, the pyc file magic number needs to be changed. --Guido van Rossum (home page: http://www.python.org/~guido/)

1 0

Embedded python on Win2K, import failures
by Harri Pasanen 22 Apr '03

22 Apr '03

Hello, In a few hours old CVS checkout, I'm having problems getting the embedded python to work. ---------8<------------8<-------------8<-------------8<----------------- #include <Python.h> char* cmd = "import sys; print sys.path\n" "import re; print dir(re)\n"; int main() { Py_Initialize(); printf("Initialize done\n"); PyRun_SimpleString(cmd); Py_Finalize(); return 0; } ---------8<------------8<-------------8<-------------8<----------------- import re seems to be succeeded only half way, the output is: Initialize done ['f:\\trema\\fk-dev\\tools\\python\\PCbuild\\python23.zip', 'f:\\trema\\fk-dev\\tools\\python\\DLLs', 'f:\\trema\\fk-dev\\tools\\python\\lib', 'f:\\trema\\fk-dev\\tools\\python\\lib\\plat-win', 'f:\\trema\\fk-dev\\tools\\python\\lib\\lib-tk', 'f:\\trema\\fk-dev\\tools\\python\\Demo\\embed', 'f:\\trema\\fk-dev\\tools\\python', 'f:\\trema\\fk-dev\\tools\\python\\lib\\site-packages'] ['__builtins__', '__doc__', '__file__', '__name__', 'engine'] So the re namespace is lacking everything from sre. On linux it works both embedded, and from the interactive interpreter. On Win2K the interactive interpreter seems to work fine. On Win2K, I have this working ok using Python 2.2.2. What gives? Harri

6 11

LynxOS4 dynamic loading with dlopen() and -ldl
by duane voth 22 Apr '03

22 Apr '03

I'm unable to get the dynamic Python modules to import/load correctly on LynxOS4 (a realtime OS that has gcc, shared libs, and many other UNIXisms). Make excerpt: ... running build running build_ext platform = lynxos4 (my comment in setup.py) building 'struct' extension creating build creating build/temp.lynxos-4.0.0-PowerPC-2.2 gcc -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -fvec -fPIC -mshared -mthreads -I. -I/usr/local/src/Python-2.2.2/./Include -I/usr/local/include -I/usr/local/src/Python-2.2.2/Include -I/usr/local/src/Python-2.2.2 -c /usr/local/src/Python-2.2.2/Modules/structmodule.c -o build/temp.lynxos-4.0.0-PowerPC-2.2/structmodule.o creating build/lib.lynxos-4.0.0-PowerPC-2.2 gcc -shared -mshared -mthreads build/temp.lynxos-4.0.0-PowerPC-2.2/structmodule.o -L/usr/local/lib -o build/lib.lynxos-4.0.0-PowerPC-2.2/struct.so WARNING: removing "struct" since importing it failed ... (all the other modules fail the same way) I hacked setup.py to stop "removing" the bad module files and brought up the python interpreter to try the import by hand: bash-2.02# ./python Python 2.2.2 (#4, Apr 21 2003, 16:39:51) [GCC 2.95.3 20010323 (Lynx)] on lynxos4 Type "help", "copyright", "credits" or "license" for more information. >>> import sys >>> sys.path += ['/usr/local/src/Python-2.2.2/build/lib.lynxos-4.0.0-PowerPC-2.2'] >>> import struct Traceback (most recent call last): File "<stdin>", line 1, in ? ImportError: Symbol not found: "PyInt_Type" >>> (btw, it would be nice if 'ImportError: Symbol not found: "PyInt_Type"' was emitted without all the debugging by hand -- actually it would be nice if many python exceptions (IndexError: list index out of range comes to mind) were rather more helpful about what is wrong, all this debugging via divination is a bit hard on us newbies!) PyInt_Type is declared in Objects/intobject.o and is visible in the python binary (the one doing the dlopen()). I'm not that familiar with dlopen() but shouldn't references from the .so being loaded to the loading program be resolved by dlopen during load? Running nm on 'python' gives '004d2d3c D PyInt_Type' so all the python symbols are being exported properly. Any ideas on how to resolve this run-time symbol lookup error? Nagging thoughts: LynxOS seems to shy away from shared libraries (they live in a special nonstandard directory and not all libraries have shared versions). Should I be thinking about doing a static python? If so, I will need to abandon dlopen() completely right? But I also want to use tkinter and the X11 libs to so I don't think static is really what I want! -- Duane Voth duanev(a)io.com -- duanev(a)atlantis.io.com

2 1

Re: [Python-Dev] Bug/feature/patch policy for optparse.py
by Greg Ward 21 Apr '03

21 Apr '03

[Raymond, I'm assuming you did not mean to send your reply to me privately, so I'm cc'ing python-dev!] On 21 April 2003, Raymond Hettinger said: > Why is it important to keep two separate implementations? > Also, if you have to have two, why not have the python cvs > as the primary (to the remove the restriction, to take advantage > of the snake farm, to let third party users have a single place > to file a bug report, to have more developer eyes and fingers > to work a problem, etc)? Hmmm, good question. Probably it's mostly for ego gratification -- one of *my* SF projects was above the 50th percentile in activity last week, just because of my flurry of checkins on Sunday! ;-> But seriously: if people using Python < 2.3 are to be able to use Optik (aka optparse), then there needs to be somewhere for the setup script, tarball etc. to live. optik.sourceforge.net is as good a place as any. Perhaps in due course, the code in Lib/optparse.py (and Lib/test/test_optparse.py) will become the definitive copy, but for now it's not. Greg -- Greg Ward <gward(a)python.net> http://www.gerg.ca/ I'm on a strict vegetarian diet -- I only eat vegetarians.

1 0

RE: [Python-Dev] Re: FIFO data structure?
by Delaney, Timothy C (Timothy) 21 Apr '03

21 Apr '03

> From: David Eppstein [mailto:eppstein@ics.uci.edu] > > See <http://tinyurl.com/9x6d> for some tests indicating that > using dict for fifo is a slow way to go. Arrgh! That's an extremely broken test. Do not link to that test! I even admitted it when I realised ... http://tinyurl.com/a0f4 Tim Delaney

1 0

Hook Extension Module Import?
by David Abrahams 21 Apr '03

21 Apr '03

Hi, I think I need a way to temporarily (from 'C'), arrange to be notified just before and just after a new extension module is loaded. Is this possible? I didn't see anything obvious in the source. BTW, I'd be just as happy if it were possible to do the same thing for any module (i.e., not discriminating between extension and pure python modules). Thanks in advance, Dave -- Dave Abrahams Boost Consulting www.boost-consulting.com

4 9

Bug/feature/patch policy for optparse.py
by Greg Ward 21 Apr '03

21 Apr '03

Hi all -- I've just thrown together Optik 1.4.1, and in turn checked in rev 1.3 of Lib/optparse.py. From the optparse docstring: """ If you have problems with this module, please do not files bugs, patches, or feature requests with Python; instead, use Optik's SourceForge project page: http://sourceforge.net/projects/optik For support, use the optik-users(a)lists.sourceforge.net mailing list (http://lists.sourceforge.net/lists/listinfo/optik-users). """ and from a comment right after the docstring: # Python developers: please do not make changes to this file, since # it is automatically generated from the Optik source code. Does this policy seem reasonable to everyone? And, more importantly, can you all please try to respect it when you find bugs in or want to add features to optparse.py? Thanks! Greg -- Greg Ward <gward(a)python.net> http://www.gerg.ca/ Never try to outstubborn a cat.

2 1

Weekly Python Bug/Patch Summary
by Skip Montanaro 20 Apr '03

20 Apr '03

Bug/Patch Summary ----------------- 396 open / 3541 total bugs (+13) 130 open / 2092 total patches (-4) New Bugs -------- profile.run makes assumption regarding namespace (2003-04-06) http://python.org/sf/716587 "build_ext" "libraries" subcommand not split into values (2003-04-07) http://python.org/sf/716634 Uthread problem - Pipe left open (2003-04-08) http://python.org/sf/717614 inspect, class instances and __getattr__ (2003-04-09) http://python.org/sf/718532 sys.path on MacOSX (2003-04-10) http://python.org/sf/719297 pimp needs to do download and untar itself (2003-04-10) http://python.org/sf/719300 Icon on applets is wrong (2003-04-10) http://python.org/sf/719303 string exceptions are deprecated (2003-04-10) http://python.org/sf/719367 Mac OS X painless compilation (2003-04-11) http://python.org/sf/719549 tokenize module w/ coding cookie (2003-04-11) http://python.org/sf/719888 datetime types don't work as bases (2003-04-13) http://python.org/sf/720908 Building lib.pdf fails on MacOSX (2003-04-14) http://python.org/sf/721157 Acrobat Reader 5 compatibility (2003-04-14) http://python.org/sf/721160 tarfile gets filenames wrong (2003-04-15) http://python.org/sf/721871 _winreg doesn't handle NULL bytes in value names (2003-04-16) http://python.org/sf/722413 weakref: proxy_print and proxy_repr incons. (2003-04-16) http://python.org/sf/722763 Put a reference to print in the Library Reference, please. (2003-04-17) http://python.org/sf/723136 PyThreadState_Clear() docs incorrect (2003-04-17) http://python.org/sf/723205 add timeout support in socket using modules (2003-04-17) http://python.org/sf/723287 runtime_library_dirs broken under OS X (2003-04-17) http://python.org/sf/723495 __slots__ broken in 2.3a with ("__dict__", ) (2003-04-18) http://python.org/sf/723540 app-building with Bundlebuilder for framework builds (2003-04-18) http://python.org/sf/723562 logging.setLoggerClass() doesn't support new-style classes (2003-04-18) http://python.org/sf/723801 overintelligent slice() behavior on integers (2003-04-18) http://python.org/sf/723806 urlopen(url_to_a_non-existing-domain) raises gaierror (2003-04-18) http://python.org/sf/723831 imaplib should convert line endings to be rfc2822 complient (2003-04-18) http://python.org/sf/723962 New Patches ----------- PEP 269 Implementation (2002-08-23) http://python.org/sf/599331 has_function() method for CCompiler (2003-04-07) http://python.org/sf/717152 allow timeit to see your globals() (2003-04-08) http://python.org/sf/717575 Patch to distutils doc for metadata explanation (2003-04-09) http://python.org/sf/718027 DESTDIR variable patch (2003-04-09) http://python.org/sf/718286 fix test_long failure on OSF/1 (2003-04-10) http://python.org/sf/719359 Remove __file__ after running $PYTHONSTARTUP (2003-04-11) http://python.org/sf/719777 proposed patch for posixpath.py: getctime() (2003-04-12) http://python.org/sf/720188 Patch to make shlex accept escaped quotes in strings. (2003-04-12) http://python.org/sf/720329 iconv_codec 3rd generation (2003-04-13) http://python.org/sf/720585 Some bug fixes for regular ex code. (2003-04-14) http://python.org/sf/720991 Add copyrange method to array. (2003-04-14) http://python.org/sf/721061 Remote debugging with pdb.py (2003-04-14) http://python.org/sf/721464 Better output for unittest (2003-04-16) http://python.org/sf/722638 PyArg_ParseTuple problem with 'L' format (2003-04-17) http://python.org/sf/723201 __del__ in dumbdbm fails under some circumstances (2003-04-17) http://python.org/sf/723231 ability to pass a timeout to underlying socket (2003-04-17) http://python.org/sf/723312 terminal type option subnegotiation in telnetlib (2003-04-17) http://python.org/sf/723364 Backport of recent sre fixes. (2003-04-18) http://python.org/sf/723940 Closed Bugs ----------- urllib needs 303/307 handlers (2002-06-12) http://python.org/sf/568068 Support for masks in getargs.c (2002-08-14) http://python.org/sf/595026 Cannot compile escaped unicode character (2002-09-20) http://python.org/sf/612074 Numerous defunct threads left behind (2002-10-10) http://python.org/sf/621548 no docs for HTMLParser.handle_pi (2002-12-27) http://python.org/sf/659188 2.3a1 computes lastindex incorrectly (2003-01-22) http://python.org/sf/672491 re.LOCALE, umlaut and \w (2003-02-21) http://python.org/sf/690974 gensuitemodule overhaul (2003-03-04) http://python.org/sf/697179 string.strip implementation/doc mismatch (2003-03-04) http://python.org/sf/697220 builtin type inconsistency (2003-03-07) http://python.org/sf/699312 Obscure error message (2003-03-08) http://python.org/sf/699934 gensuitemodule needs to be documented (2003-03-29) http://python.org/sf/711986 test_zipimport failing on ia64 (at least) (2003-03-30) http://python.org/sf/712322 Cannot change the class of a list (2003-03-31) http://python.org/sf/712975 Closed Patches -------------- SimpleXMLRPCServer auto-docing subclass (2002-03-29) http://python.org/sf/536883 optionally make shelve less surprising (2002-05-07) http://python.org/sf/553171 GC: untrack simple objects (2002-05-21) http://python.org/sf/558745 gettext module charset changes (2002-06-13) http://python.org/sf/568669 Shadow Password Support Module (2002-07-09) http://python.org/sf/579435 Add popen2 like functionality to pty.py. (2002-08-03) http://python.org/sf/590513 Refactoring of difflib.Differ (2002-08-27) http://python.org/sf/600984 Punycode encoding (2002-11-02) http://python.org/sf/632643 refactoring and documenting ModuleFinder (2002-11-25) http://python.org/sf/643711 Complementary patch for OpenVMS (2002-12-07) http://python.org/sf/649997 659188: no docs for HTMLParser (2003-01-04) http://python.org/sf/662464 xmlrpclib: better string encoding in responce package (2003-02-03) http://python.org/sf/679383 Tiny patch for bug 612074: sre unicode escapes (2003-02-05) http://python.org/sf/681152 AutoThreadState implementation (2003-02-10) http://python.org/sf/684256 optparse OptionGroup docs (2003-03-05) http://python.org/sf/697941 docs for hotshot module (2003-03-05) http://python.org/sf/698505 time.tzset standards compliance update (2003-03-19) http://python.org/sf/706707 Allow range() to return long integer values (2003-03-21) http://python.org/sf/707427 remove -static option from cygwinccompiler (2003-03-24) http://python.org/sf/709178 new test_urllib and patch for found urllib bug (2003-03-27) http://python.org/sf/711002 Removing unnecessary lock operations (2003-03-29) http://python.org/sf/711835 iconv_codec NG (2003-04-02) http://python.org/sf/713820 Unicode Codecs for CJK Encodings (2003-04-02) http://python.org/sf/713824 Guard against segfaults in debug code (2003-04-02) http://python.org/sf/714348 Document freeze process in PC/config.c (2003-04-03) http://python.org/sf/714957

1 0

Re: [Python-Dev] Fwd: summing a bunch of numbers (or "whatevers")
by Uche Ogbuji 19 Apr '03

19 Apr '03

> Now, I think the obvious approach would be to have a function sum, > callable with any non-empty homogeneous sequence (sequence of > items such that + can apply between them), returning the sequence's > summation -- now THAT might help for simplicity, clarity AND power. +1. I agree that this is a natural additon to min() and max(), and a common enough case to clarify and optimize. > I'm not > quite sure where it should go -- a builtin seems most natural (to keep > company with min and max, for example), but maybe that would be > too ambitious, and it should be in math or operator instead... +1 on builtins, but I'd be OK with math or op as well. -- Uche Ogbuji Fourthought, Inc. http://uche.ogbuji.net http://4Suite.org http://fourthought.com Gems From the [Python/XML] Archives - http://www.xml.com/pub/a/2003/04/09/py-xm l.html

1 0