Mailman 3 June 2004 - Python-Dev

Weekly Python Bug/Patch Summary
by Kurt B. Kaiser June 28, 2004

June 28, 2004

Patch / Bug Summary ___________________ Patches : 286 open (+10) / 2422 closed ( +7) / 2708 total (+17) Bugs : 771 open (+30) / 4168 closed (+12) / 4939 total (+42) RFE : 142 open ( +2) / 129 closed ( +0) / 271 total ( +2) New / Reopened Patches ______________________ Parser/acceler.c: PyObject_MALLOC return is not checked (2004-06-17) http://python.org/sf/974633 opened by Dima Dorfman Signal fixes for BSD systems (2004-06-18) http://python.org/sf/975056 opened by Luke Mewburn compileall.py - print file name in err msg in quiet mode (2004-06-19) CLOSED http://python.org/sf/975885 opened by Matthias Klose Deferred String Addtion: Proof-of-concept (2004-06-20) http://python.org/sf/976162 opened by Raymond Hettinger Stripping script extensions with distutils (2004-06-21) http://python.org/sf/976869 opened by Fred L. Drake, Jr. speed up md5: allow Encode and Decode to inline (2004-06-21) http://python.org/sf/977074 opened by Matthew Mueller Speed up EnumKey call (2004-06-22) http://python.org/sf/977553 opened by Garth Bushell dev_intro - make patch review request more obvious (2004-06-22) CLOSED http://python.org/sf/977671 opened by Jim Jewett Improve HTML documentation of a directory (2004-06-25) http://python.org/sf/979658 opened by Noam Raphael mplementation for PEP 318 using java-style syntax (2004-06-25) http://python.org/sf/979728 opened by Mark Russell compile of code with incorrect encoding yields MemoryError (2004-06-25) CLOSED http://python.org/sf/979737 opened by Anthony Tuininga OSATerminology extension fix (2004-06-25) http://python.org/sf/979784 opened by has Missing INCREF in PyType_Ready (2004-06-25) http://python.org/sf/980082 opened by Eric Huss Module to dynamically generate structseq objects (2004-06-25) http://python.org/sf/980098 opened by Eric Huss difflib empty list IndexError fix (Bug #980117) (2004-06-25) http://python.org/sf/980120 opened by Rocco Moretti partially initialized heap allocated type objects (2004-06-26) http://python.org/sf/980475 opened by Eric Huss gettext improvements (2004-06-27) http://python.org/sf/980500 opened by Gustavo Niemeyer efficient string concatenation (2004-06-27) http://python.org/sf/980695 opened by Armin Rigo Patches Closed ______________ A simple 3-4% speed-up for PCs (2004-04-28) http://python.org/sf/943898 closed by arigo configure interpreter for profiling (2003-07-08) http://python.org/sf/768079 closed by montanaro compileall.py - print file name in err msg in quiet mode (2004-06-19) http://python.org/sf/975885 closed by loewis add C API to datetime module (2004-01-13) http://python.org/sf/876130 closed by tim_one dev_intro - make patch review request more obvious (2004-06-22) http://python.org/sf/977671 closed by loewis invalid submission (2004-06-25) http://python.org/sf/979737 closed by atuining Cleanup generator/eval_frame exposure (2004-06-04) http://python.org/sf/966493 closed by loewis Support for interned strings in marshal (2004-03-25) http://python.org/sf/923098 closed by loewis New / Reopened Bugs ___________________ missing word in defintion of xmldom InvalidStateErr (2004-06-16) CLOSED http://python.org/sf/973901 opened by Brian Gough ConfigParser defaults not handled correctly (2004-06-16) http://python.org/sf/974019 opened by Charles Slice indexes passed to __getitem__ are wrapped (2004-06-17) http://python.org/sf/974635 opened by Connelly urllib2's HTTPPasswordMgr and uri's with port numbers (2004-06-17) http://python.org/sf/974757 opened by Chris Withers test_unicode_file fails on Win98SE (2004-03-27) http://python.org/sf/924703 reopened by tim_one Inconsistent newline handling in email module (2004-06-18) http://python.org/sf/975330 opened by Anders Hammarquist Python and segfaulting extension modules (2004-06-18) CLOSED http://python.org/sf/975387 opened by Folke Lemaitre logging module uses deprecate apply() (2004-06-18) CLOSED http://python.org/sf/975404 opened by Barry Alan Scott HTMLParser lukewarm on bogus bare attribute chars (2004-06-18) http://python.org/sf/975556 opened by Mike Coleman tp_(get|set)attro? inheritance bug (2004-06-18) http://python.org/sf/975646 opened by Gustavo J. A. M. Carneiro shutil.copytree uses os.mkdir instead of os.mkdirs (2004-06-18) http://python.org/sf/975763 opened by Brett Cannon Add _PyTime_DoubletoTimet to C API (2004-06-19) CLOSED http://python.org/sf/975996 opened by Brett Cannon Unhelpful error message when getmtime.c fails (2004-06-21) http://python.org/sf/976608 opened by Peter Maxwell socket timeouts problems on Solaris (2004-06-21) http://python.org/sf/976613 opened by Peter =C5strand PDB: unreliable breakpoints on functions (2004-06-21) http://python.org/sf/976878 opened by Dieter Maurer mmap needs a rfind method (2004-06-21) http://python.org/sf/976880 opened by Nicholas Riley Double __init__.py executing (2004-06-22) http://python.org/sf/977250 opened by Alexandre Solaris likes sys/loadavg.h (2004-06-22) http://python.org/sf/977343 opened by Anthony Baxter Cannot specify compiler for 'install' on command line (2004-06-22) http://python.org/sf/977461 opened by Anders J. Munch Deleted files are reinstalled (2004-06-22) http://python.org/sf/977470 opened by Anders J. Munch IMAP4_SSL() class incompatible with socket.timeout (2004-06-22) http://python.org/sf/977680 opened by Charles Python compiler encodes path to source in .pyc (2004-06-22) CLOSED http://python.org/sf/977934 opened by Jonathan Polley "build" target doesn't check umask (2004-06-22) http://python.org/sf/977937 opened by Charles Spurious errors taking bool of dead proxy (2004-06-23) http://python.org/sf/978308 opened by Chris King Broken URLs in sha module docs (2004-06-23) http://python.org/sf/978556 opened by Troels Therkelsen wait_variable hangs at exit (2004-06-23) http://python.org/sf/978604 opened by Russell Owen configure and gmake fail in openbsd 3.5 i386 (2004-06-24) http://python.org/sf/978632 opened by - compiler warning for _NSGetExecutablePath() in getpath.c (2004-06-23) CLOSED http://python.org/sf/978645 opened by Brett Cannon can't compile _localemodule.c w/o --enable-toolbox-glue (2004-06-23) http://python.org/sf/978662 opened by Brett Cannon SSL-ed sockets don't close correct? (2004-06-24) http://python.org/sf/978833 opened by Robert Kiendl Remove all email from the archives (2004-06-24) CLOSED http://python.org/sf/978952 opened by Encolpe DEGOUTE Trap OSError when calling RotatingFileHandler.doRollover (2004-06-24) http://python.org/sf/979252 opened by Richard T. Hewitt urllib2 digest auth totally broken (2004-06-24) http://python.org/sf/979407 opened by Aaron Swartz compile of code with incorrect encoding yields MemoryError (2004-06-25) http://python.org/sf/979739 opened by Anthony Tuininga diffutil errors when coparing 2 0 byte entries (2004-06-25) http://python.org/sf/979794 opened by Robert M. Zigweid On HPUX 11i universal newlines seems to cause readline(s) to (2004-06-25) http://python.org/sf/979872 opened by dmcisaac email.Message.Message.__getitem__ doc string wrong (2004-06-25) http://python.org/sf/979924 opened by Jp Calderone gethostbyname is broken on hpux 11.11 (2004-06-25) http://python.org/sf/979967 opened by Ehab Teima email module namespace inconsistent (2004-06-25) CLOSED http://python.org/sf/980019 opened by Charles tp_subclasses grow without bounds (2004-06-25) http://python.org/sf/980092 opened by Eric Huss Index error for empty lists in Difflib (2004-06-25) http://python.org/sf/980117 opened by Rocco Moretti Possible error during LINKCC check in Configure.in (2004-06-25) http://python.org/sf/980127 opened by Brett Cannon ntpath normpath (2004-06-26) http://python.org/sf/980327 opened by Keyphrene coercion results used dangerously (2004-06-26) http://python.org/sf/980352 opened by Armin Rigo int left-shift causes memory leak (2004-06-26) CLOSED http://python.org/sf/980419 opened by Erik Demaine Possible contradiction in "extending" and PyArg_ParseTuple() (2004-06-27) http://python.org/sf/980925 opened by Brett Cannon smtplib.SMTP prints debug stuff to stdout (2004-06-27) http://python.org/sf/980938 opened by Skip Montanaro Bugs Closed ___________ missing word in defintion of xmldom InvalidStateErr (2004-06-16) http://python.org/sf/973901 closed by bcannon bsddb in Python 2.3 incompatible with SourceNav output (2004-06-15) http://python.org/sf/973054 closed by greg bsddb test_all.py - incorrect (2003-12-23) http://python.org/sf/865120 closed by greg bsddb craps out sporadically (2003-12-10) http://python.org/sf/857909 closed by greg Python and segfaulting extension modules (2004-06-18) http://python.org/sf/975387 closed by loewis logging module uses deprecate apply() (2004-06-18) http://python.org/sf/975404 closed by bcannon platform.system() Windows inconsistency (2004-05-01) http://python.org/sf/945665 closed by lemburg shutil.move can destroy files (2004-03-18) http://python.org/sf/919012 closed by bcannon pydoc.stripid doesn't strip ID (2004-04-13) http://python.org/sf/934282 closed by bcannon wrong answers from ctime (2004-01-09) http://python.org/sf/874042 closed by bcannon Add _PyTime_DoubletoTimet to C API (2004-06-19) http://python.org/sf/975996 closed by tim_one Python compiler encodes path to source in .pyc (2004-06-23) http://python.org/sf/977934 closed by loewis compiler warning for _NSGetExecutablePath() in getpath.c (2004-06-23) http://python.org/sf/978645 closed by bcannon Remove all email from the archives (2004-06-24) http://python.org/sf/978952 closed by loewis email module namespace inconsistent (2004-06-25) http://python.org/sf/980019 closed by bwarsaw int left-shift causes memory leak (2004-06-26) http://python.org/sf/980419 closed by rhettinger

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Joy in Berkeley Windowsland
by Tim Peters June 28, 2004

June 28, 2004

Sharing the joy: after Greg's checkins today, the Berkeley tests (test_anydbm and, with -u bsddb, test_bsddb3) all pass on WinXP. Yay! That means there's nothing I routinely expect to fail all the time on Windows anymore <0.9 wink>.

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Re: [Python-Dev] Python startup time: String objects
by Martin v. L�wis June 27, 2004

June 27, 2004

> Even with cPickle? AFAIR: Yes. It was not orders of magnitude slower anymore, but significantly slower. > I'm still worried about your patch, because it changes all uses of > marchal, not just how code objects are marshalled. The marshal module > *is* used by other apps... The change is backwards-compatible in the sense that existing files can be unmarshalled just fine. Problems will only arise if new marshal output is unmarshalled by old versions, which could be solved with an option during marshalling. Regards, Martin

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Reference implementation of an import hook
by Noam Raphael June 27, 2004

June 27, 2004

Hello, I've sent this question to comp.lang.python and didn't get any response. Do you know of a reference implementation of an import hook? I mean a class, written in Python, that imitates Python's default module loading behaviour. I mean that I would be able to append the class to sys.path_hooks, and module loading won't be affected. I want it so that it would be easy for me to modify it, or subclass it, for my own needs, while preserving its behaviour. (My situation, if you are interested, is that in my current setup, modules are loaded from the network, which takes a long time. I want to create a caching mechanism which will use the local hard disk.) It seems to me that such an implementation should be added to the standard library or at least to the documentation, since it would help anyone who would like to write an import hook, and would also help clarify Python's import mechanism. If such an implementation doesn't exist, I would probably write one anyway, and I would be willing to share it, if people want it. Thank you, Noam Raphael

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Compiling the Python sources with a C++ compiler (aCC)
by Paul Sheer June 27, 2004

June 27, 2004

(previously submitted to comp.lang.python) I have managed to build Python 2.3.3 with the aCC HP-UX C++ compiler by making a number of one-line changes. (For reasons beyond my control, I am forced to use this compiler and it has no C mode at all.) Typically to get the Python source code to compile under aCC one has to make a number of trivial changes of the form, struct whatzit *p; - p = malloc (sizeof (struct whatzit)); + p = (struct whatzit *) malloc (sizeof (struct whatzit)); since aCC has stricter casting rules than ANSI C and does not automatically cast void * . Another change is where a forward declaration is needed for the module type. The aCC compiler complines about a duplicate definition. I change these from "static" to "extern" which gives a warning, but otherwise works. For example, + #define staticforward ... /* in my case 'extern' */ - static PyTypeObject Comptype; + staticforward PyTypeObject Comptype; (There is/was a staticforward macro which is not used consistently.) A third change are the Python module initializers (PyMODINIT_FUNC xxx(void) {...): they need to obviously be declared 'extern "C"' (for dl importing) which can happen in the PyMODINIT_FUNC macro. However the macro is not used consistently throughout the Python sources. Finally, of course there are numerous uses of "new", "class" and other C++ keywords. I wrote a short flex script to search and replace through the entire sources for instances of these. To summarize the changes needed: 1. explicit casting of void * 2. consistant use of a "staticforward" type for PyTypeObject forward declarations. 3. consinstant use of PyMODINIT_FUNC. 4. use of PyMODINIT_FUNC even in prototypes (like config.c.in) 5. renaming of C++ reserved words. (There are other changes specific to the HP-UX architecture - too numerous to mention.) My question is: are the Python maintainers interested in such compatibility? Although Python will always be strict ANSI C, are such changes not of general interest for the purposes of consistency of the source code? Can someone forward this email to the appropriate developers list (or tell me which one)? Shall I prepare a proper patch against 2.3.4? What would the consensus be on replacements for 'new', 'class', 'template', 'operator', etc.? Perhaps __new, zew, or new2; klass, __class, or cla55 etc.? Has this issue come up before? URLs? Many thanks, best wishes -paul Paul Sheer . . . . . . . . . . . . . . . . . Tel . . +27 (0)21 6869634 Email . . . http://2038bug.com/email.gif . . . . . . . . . . . . . . . . http://www.icon.co.za/~psheer . . . . . . . . . http://rute.2038bug.com L I N U X . . . . . . . . . . . . . . . . The Choice of a GNU Generation

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gettext improvements
by Gustavo Niemeyer June 27, 2004

June 27, 2004

I've just submitted patch #980500 to SF, which implements the gettext improvements exactly as recently discussed. Every review is welcome. Here is an excerpt: In _locale module: - bind_textdomain_codeset() binding In gettext module: - bind_textdomain_codeset() function - lgettext(), lngettext(), ldgettext(), ldngettext(), which return translated strings encoded in preferred system encoding, if bind_textdomain_codeset() was not used. - Added equivalent functionality in install() and translate() functions and catalog classes. - Documented every change. -- Gustavo Niemeyer http://niemeyer.net

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Heap allocated type objects from C
by Eric Huss June 26, 2004

June 26, 2004

I've been messing around with dynamically generating type objects from C. In particular, I made a module to generate structseq type objects. See sourceforge bug 624827 and patch 980098. I ran into a fair amount of difficulty in doing this. There doesn't appear to be a direct C API for doing this. One possible method is calling PyType_Type.tp_new() and then updating the returned type object as needed, but that seemed a little dirty. First, could someone tell me if I took the correct route for creating a type object on the heap (based on my patch). Second, shouldn't there be a more direct API for doing this? Perhaps a more generalized interface to type_new(), or maybe something completely new?? -Eric

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Allowing u.encode() to return non-strings
by M.-A. Lemburg June 26, 2004

June 26, 2004

As you may know, the method u"abc".encode(encoding) currently guarantees that the return value will always be an 8-bit string value. Now that more and more codecs become available and the scope of those codecs goes far beyond only encoding from Unicode to strings and back, I am tempted to open up that restriction, thereby opening up u.encode() for applications that wish to use other codecs that return e.g. Unicode objects as well. There are several applications for this, such as character escaping, remapping characters (much like you would use string.translate() on 8-bit strings), compression, etc. etc. Note that codecs are not restricted in what they can return for their .encode() or .decode() method, so any object type is acceptable, including subclasses of str or unicode, buffers, mmapped files, etc. The needed code change is a one-liner. What do you think ? -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Jun 16 2004) >>> Python/Zope Consulting and Support ... http://www.egenix.com/ >>> mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ >>> mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/ ________________________________________________________________________ ::: Try mxODBC.Zope.DA for Windows,Linux,Solaris,FreeBSD for free ! ::::

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Possible memory leak in typeobject.c?
by Eric Huss June 25, 2004

June 25, 2004

While tearing my hair out trying to figure out why my dynamically allocated type objects weren't getting garbage collected, I noticed that the tp_new_wrapper object had 1 too many ref counts. Does the following patch make sense? Seems fairly straightforward to me. -Eric

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RE: [Python-Dev] Comparing heterogeneous types
by Chermside, Michael June 25, 2004

June 25, 2004

> #- > I maintain that when comparing a long with a float > #- > where the exponent is larger than the precision, that the > #- > float should be treated as if it were EXACTLY EQUAL TO > #- > <coefficient>*2^<exponent>, instead of trying to treat it as > #- > some sort of a range. Similarly, if we implemented a Rational > #- > type, I would suggest that instances of float (or of Facundo's > #- > Decimal) where <exponent> is LESS than the digits of > #- > <coefficient> should be treated as if they were EXACTLY EQUAL > #- > TO the corresponding fraction-over-a-power-of-two. Facundo writes: > Don't get to understand this. Could you send please an > example of Decimal to > this case? Presume a Rational type: >>> class Rational(object): >>> def __init__(self, num, denom): >>> self.num = num >>> self.denom = denom >>> # .... Now define the following >>> x = 12300 >>> y = Decimal.Decimal((0,(1,2,3),2)) >>> z = Rational(1230000,100) I maintain that x == y should be true (and it is, today). I maintain that x == z should be true (and it is, obviously). I maintain that y == z should be true. _IF_ you think of Decimal.Decimal((0,(1,2,3),2)) as being "any number which, when rounded to the nearest hundred, gives 12300" (in other words, as the range 12250..12350), then you might not agree. But if you think of Decimal.Decimal((0,(1,2,3),2)) as being *exactly* 12300 (but with a precision of only 3 places), then you'd want x == z to be true. -- Michael Chermside This email may contain confidential or privileged information. If you believe you have received the message in error, please notify the sender and delete the message without copying or disclosing it.

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