Mailman 3 September 2002 - Python-Dev

Re: [Python-checkins] python/dist/src/Mac/Include getapplbycreator.h,1.3,1.4 macdefs.h,1.11,1.12 macglue.h,1.61,1.62 pythonresources.h,1.27,1.28
by Thomas Wouters 10 Sep '02

10 Sep '02

On Tue, Sep 10, 2002 at 05:32:49AM -0700, jackjansen(a)users.sourceforge.net wrote: > Modified Files: > getapplbycreator.h macdefs.h macglue.h pythonresources.h > Log Message: > Added include guards and C++ extern "C" {} constructs. Partial fix for #607253. > Bugfix candidate. [..] > *** getapplbycreator.h 19 May 2001 12:32:39 -0000 1.3 > --- getapplbycreator.h 10 Sep 2002 12:32:47 -0000 1.4 [..] > ******************************************************************/ > + #ifndef Py_GETAPPLBYCREATOR_H > + #define Py_GETALLPBYCREATOR_H This looks suspiciously like a bug. If you really do intend to #define something different than you just checked against, you should add a comment stating that this really isn't a typo of a very common idiom :) I'm-not-dead--I-feel-fine-ly y'rs, -- Thomas Wouters <thomas(a)xs4all.net> Hi! I'm a .signature virus! copy me into your .signature file to help me spread!

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Re: raw headers in rfc822.Message
by Michael Chermside 10 Sep '02

10 Sep '02

>> On that page there's a link entitled "See our hints on how to create a >> patch." This links to >> >> http://www.python.org/patches/ >> >> which has, I think, the required details. > > I added that link a few minutes ago. :-) > > --Guido van Rossum (home page: http://www.python.org/~guido/) I think that's a great fix. Thanks! -- Michael Chermside

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raw headers in rfc822.Message
by john spurling 09 Sep '02

09 Sep '02

greetings, since the raw headers don't seem to be available in an rfc822.Message, i added a quick two line hack to populate a rawheaders member. attached is a patch to rfc822.py from the python 2.2.1 distribution. if you don't like my two line hack, consider this a request to provide the raw headers in some way in an rfc822.Message. thanks, john spurling -- "nothing brings people together like doom." --sarah vowell

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Re: raw headers in rfc822.Message
by john spurling 09 Sep '02

09 Sep '02

maybe it would help if i actually attached the diff...

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Weekly Python Bug/Patch Summary
by Skip Montanaro 08 Sep '02

08 Sep '02

Bug/Patch Summary ----------------- 278 open / 2830 total bugs (-6) 115 open / 1686 total patches (-4) New Bugs -------- setting file buffer size is unreliable (2002-09-02) http://python.org/sf/603724 spurious SyntaxWarning (2002-09-03) http://python.org/sf/604036 time.struct_time undocumented (2002-09-03) http://python.org/sf/604128 long list in Pythonwin -> weird text (2002-09-03) http://python.org/sf/604387 faster [None]*n or []*n (2002-09-04) http://python.org/sf/604716 pre bug (2002-09-04) http://python.org/sf/604803 python-mode.el replaces function on f1 (2002-09-06) http://python.org/sf/605818 python-mode kills arrow in gdb (gud.el) (2002-09-08) http://python.org/sf/606250 elisp: doesn't recognize comment-syntax (2002-09-08) http://python.org/sf/606251 py-electric-colon & delete-selection-mod (2002-09-08) http://python.org/sf/606254 New Patches ----------- ccompiler argument checking too strict (2002-09-02) http://python.org/sf/603831 release GIL around getaddrinfo() (2002-09-03) http://python.org/sf/604210 For Bug [ 490168 ] shutil.copy(path, pat (2002-09-04) http://python.org/sf/604600 nntplib: group descriptions and RFC2980 (2002-09-05) http://python.org/sf/605370 Tweaks to calls to AH/Help (2002-09-07) http://python.org/sf/606067 fast dictionary lookup by name (2002-09-07) http://python.org/sf/606098 Mac OS X keydefs (2002-09-07) http://python.org/sf/606132 install_IDLE target in Mac/OSX/Makefile (2002-09-07) http://python.org/sf/606134 Closed Bugs ----------- Unicode in sys.path not supported (2001-10-30) http://python.org/sf/476326 PDB single steps list comprehensions (2002-02-28) http://python.org/sf/523995 surprise overriding __radd__ in subclass of complex (2002-03-18) http://python.org/sf/531355 import user doesn't work with CGIs (2002-05-14) http://python.org/sf/555779 whatsnew explains noargs incorrectly (2002-06-11) http://python.org/sf/567607 Invalid mmap crashes Python interpreter (2002-07-24) http://python.org/sf/585792 spawn*() doesn't handle errors well (2002-08-20) http://python.org/sf/597795 The KeyError message doesn't use repr on the key value reported (2002-08-21) http://python.org/sf/598451 Method resolution order in Py 2.2 - 2.3 (2002-08-23) http://python.org/sf/599452 bug in new execvpe (2002-08-27) http://python.org/sf/601077 xmlrpclib ignores CDATA (2002-08-28) http://python.org/sf/601534 some int results that should be bool (2002-08-29) http://python.org/sf/601775 smtplib mishandles empty sender (2002-08-29) http://python.org/sf/602029 configure finds c++ w/o --with-cxx (2002-08-29) http://python.org/sf/602102 Closed Patches -------------- unicode encoding error callbacks (2001-06-12) http://python.org/sf/432401 Pure Python strptime() (PEP 42) (2001-10-23) http://python.org/sf/474274 mimetypes: all extensions for a type (2002-05-09) http://python.org/sf/554192 socketmodule.[ch] downgrade (2002-08-09) http://python.org/sf/593069 email: RFC 2231 parameters encoding (2002-08-26) http://python.org/sf/600096 IDLE [Open module]: import submodules (2002-08-26) http://python.org/sf/600152 Robustness tweak to httplib.py (2002-08-26) http://python.org/sf/600488 obmalloc,structmodule: 64bit, big endian (2002-08-28) http://python.org/sf/601369 expose PYTHON_API_VERSION via sys (2002-08-28) http://python.org/sf/601456 replace_header method for Message class (2002-08-29) http://python.org/sf/601959 sys.path in user.py (2002-08-29) http://python.org/sf/602005 single shared ticker (2002-08-29) http://python.org/sf/602191

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Two random and nearly unrelated ideas
by Skip Montanaro 06 Sep '02

06 Sep '02

While adding a blurb to Misc/NEWS about the change to the thread ticker and check interval, it occurred to me that perhaps Misc/NEWS would benefit from conversion to ReST format. You could pump an HTML version out to the website periodically. Second (also considered during the above edit), it would be nice to get rid of the ticker altogether in systems with proper signal support. On those platforms couldn't an alarm replace polling for the ticker? I know signals are tricky devils, but it still seems it would be a win if you could use it. You'd have to install a SIGALRM handler which would trip periodically. It would also have to keep track of any alarm handler the programmer installed. Just for the heck of it I recompiled ceval.c with the (--_Py_Ticker < 0) block ifdef'd out. Got a 1.7% increase in pystones over the now default checkinterval == 100 situation. Skip

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Documentation inconsistency in re
by list-python＠ccraig.org 06 Sep '02

06 Sep '02

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Re: [Python-Dev] utf8 issue
by Michael Hudson 06 Sep '02

06 Sep '02

Guido van Rossum <guido(a)python.org> writes: > This might beling on SF, except it's already been solved in Python > 2.3, and I need guidance about what to do for Python 2.2.2. > > In 2.2.1, a lone surrogate encoded into utf8 gives an utf8 string that > cannot be decode back. In 2.3, this is fixed. Should this be fixed > in 2.2.2 as well? I think this was discussed really quite a long time ago, like six months or so. > I'm asking because it caused problems with reading .pyc files: if > there's a Unicode literal containing a lone surrogate, reading the > .pyc file causes an exception: > > UnicodeError: UTF-8 decoding error: unexpected code byte > > It looks like revision 2.128 fixed this for 2.3, but that patch > doesn't cleanly apply to the 2.2 maintenance branch. Can someone > help? I think the reason this didn't get fixed in 2.2.1 is that it necessitates bumping MAGIC. I can probably dig up more references if you want. Cheers, M. -- 34. The string is a stark data structure and everywhere it is passed there is much duplication of process. It is a perfect vehicle for hiding information. -- Alan Perlis, http://www.cs.yale.edu/homes/perlis-alan/quotes.html

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SF patch#555779, "import user" and Apache... *humble*
by Stephen Hansen 05 Sep '02

05 Sep '02

*cough* So. Hi. Python-Gods. Um. So. Anyways. *embarassed* I submitted a really tiny patch to SF awhile back, #555779, which would make "import user" actually useful in a certain specific CGI situation. The BDFL seemed to have no problems and said anyone could commit it.. no one has. :) Now, i'm not impatient at all, its already patched into all the machines i'm working on... however, i'm just sending this little reminder in the hopes that it won't be forgotten until after 2.3 comes out. :) I don't want to re-patch everything again later, i've got quite a few machines currently using it. :) *cough* So. Yes. Well. Thank you for your time. :) *runs away* --Stephen

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Signal-resistant code (was: Two random and nearly unrelated ideas)
by Oren Tirosh 05 Sep '02

05 Sep '02

On Wed, Sep 04, 2002 at 11:04:27AM -0700, Brett Cannon wrote: > [Oren Tirosh] > > <snip> > > > > Not before all all Python I/O calls are converted to be EINTR-safe. > > what is EINTER-safe? When an I/O operation is interrupted by an unmasked signal it returns with errno==EINTR. The state of the file is not affected and repeating the operation should recover and continue with no loss of data. Here is an EINTR-safe version of read: ssize_t safe_read(int fd, void *buf, size_t count) { ssize_t result; do { result = read(fd, buf, count); } while (result == -1 && errno == EINTR); return result; } When exposing the C I/O calls to Python you can either: 1. Use EINTR-safe I/O and hide this from the user. 2. Pass on EINTR to the user. Python currently does #2 with a big caveat - the internal buffering of functions like file.read or file.readline is messed up and cannot be cleanly restarted. This makes signals unusable for delivery of asynchronous events in the background without affecting the state of the main program. Oren

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