Mailman 3 December 2003 - Python-Dev

Re: [Python-Dev] Got None. Maybe Some?
by Josiah Carlson Dec. 22, 2003

Dec. 22, 2003

> > Is None so weird? All I am proposing is a symmetric value to None. > > Just like there is a -1 and 1, -Infinity and Infinity, None logically > > should have Some. Maybe not so much -Some == None, but as I propose in > > the PEP, possibly Some == not None. > > None's purposr is not to be less than all numbers (in fact in > the past it wasn't); it's to be "not any object", like nil or NULL in > other languages. > > I don't see a similar broad … [View More]

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Re: [Python-Dev] Got None. Maybe Some?
by Michael Chermside Dec. 22, 2003

Dec. 22, 2003

[Josiah proposes a Some object to be the counterpart of None] [Guido seems reluctant] Josiah: I have a counterproposal. The good news is, it's REALLY easy -- you won't need a PEP, and I am sure that you'll get no objections from anyone on this list. And it'll provide you with a "Some" object that acts like you describe (except the one mention you made of "Some == not None"... that one's a bad idea since right now "True == not None"). Here's the idea: Create a file called "Some.py": -------… [View More]

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make test failing in a spectacular way in test_codeccallbacks
by Skip Montanaro Dec. 22, 2003

Dec. 22, 2003

Fresh cvs up (no local changes) on Mac OS X 10.2.8 yields this while running test_codeccallbacks (non-framework build, configured only using --with-pydebug): malloc[20582]: protecting edges malloc[20582]: recording stacks using standard recorder malloc[20582]: enabling scribbling to detect mods to free blocks malloc[20582]: checks heap after 1th operation and each 1000 operations malloc[20582]: environment variables that can be set for debug: - MallocGuardEdges to add 2 … [View More]guard pages for each large block - MallocDoNotProtectPrelude to disable protection (when previous flag set) - MallocDoNotProtectPostlude to disable protection (when previous flag set) - MallocStackLogging to record all stacks. Tools like leaks can then be applied - MallocStackLoggingNoCompact to record all stacks. Needed for malloc_history - MallocScribble to detect writing on free blocks: 0x55 is written upon free - MallocCheckHeapStart <n> to check the heap from time to time after <n> operations - MallocHelp - this help! MallocCheckHeap: PASSED check at 1th operation MallocCheckHeap: PASSED check at 1001th operation MallocCheckHeap: PASSED check at 2001th operation MallocCheckHeap: PASSED check at 3001th operation test_backslashescape (__main__.CodecCallbackTest) ... ok test_badandgoodbackslashreplaceexceptions (__main__.CodecCallbackTest) ... ok test_badandgoodignoreexceptions (__main__.CodecCallbackTest) ... ok test_badandgoodreplaceexceptions (__main__.CodecCallbackTest) ... ok test_badandgoodstrictexceptions (__main__.CodecCallbackTest) ... ok test_badandgoodxmlcharrefreplaceexceptions (__main__.CodecCallbackTest) ... ok test_badhandlerresults (__main__.CodecCallbackTest) ... ok test_badregistercall (__main__.CodecCallbackTest) ... ok test_bug828737 (__main__.CodecCallbackTest) ... ok test_callbacks (__main__.CodecCallbackTest) ... ok test_charmapencode (__main__.CodecCallbackTest) ... ok test_decodehelper (__main__.CodecCallbackTest) ... ok MallocCheckHeap: PASSED check at 4001th operation test_encodehelper (__main__.CodecCallbackTest) ... ok Debug memory block at address p=0x7cb138: 7032 bytes originally requested The 4 pad bytes at p-4 are FORBIDDENBYTE, as expected. The 4 pad bytes at tail=0x7cccb0 are not all FORBIDDENBYTE (0xfb): at tail+0: 0x33 *** OUCH at tail+1: 0x35 *** OUCH at tail+2: 0x34 *** OUCH at tail+3: 0x3b *** OUCH The block was made by call #639840562 to debug malloc/realloc. Data at p: 00 00 00 00 00 00 00 00 ... 33 35 34 3b 26 23 31 32 Fatal Python error: bad trailing pad byte Abort trap The "Data at p" hex bytes map to ['3', '5', '4', ';', '&', '#', '1', '2']. The Malloc messages are all from Apple's malloc() pkg with a bunch of debug environment variables set. I haven't dug into this any further. I applied a new OS X security update yesterday. That's the only recent change to the system I'm aware of. GCC is [GCC 3.3 20030304 (Apple Computer, Inc. build 1493)] on darwin as reported by the Python interpreter at startup. Anyone else seen this? Skip [View Less]

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Re: [Python-Dev] Relative import
by Nick Coghlan Dec. 21, 2003

Dec. 21, 2003

John J Lee wrote: > I can see that people not knowing how to spell "hierarchy" might be a > problem here <wink> Heh, good point. I always get confused by the place of the 'heir' in the 'hierarchy'. I had a seriously hard time coming up with a one word name that suggested the right semantics for that category. If the idea gets any interest, it'd be nice to find a better word for that case. I was tempted to use __ambiguous__, though :) Hmm, __scan__ could be an option. The other … [View More]

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Vinay Sajip
by Raymond Hettinger Dec. 21, 2003

Dec. 21, 2003

FYI, Vinay Sajip has been granted CVS commit privileges for the purpose of maintaining and extending his logging package. Raymond Hettinger

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Re: [Python-checkins] python/dist/src/Include patchlevel.h, 2.74.4.9, 2.74.4.10
by Anthony Baxter Dec. 21, 2003

Dec. 21, 2003

>>> fdrake(a)users.sourceforge.net wrote > Update of /cvsroot/python/python/dist/src/Include > In directory sc8-pr-cvs1:/tmp/cvs-serv22509 > > Modified Files: > Tag: release23-maint > patchlevel.h > Log Message: > Post-release version bumpage. Argh! Nonononononono! Please leave the branch at 2.3.3 for Jack to cut the Mac versions! Anthony -- Anthony Baxter <anthony(a)interlink.com.au> It's never too late to have a happy childhood.

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Liceinses in the Docs
by Raymond Hettinger Dec. 20, 2003

Dec. 20, 2003

I would like to add an section to the Library Reference to fulfill license requirements for code included in Python. For example, the license for underlying the Mersenne Twister code is already embedded in the source but it requests to be included in the docs as well. Any thoughts or objections? Raymond Hettinger

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You tried diets and workouts, add this and be amazed!! bpvwvczpyztptp
by Reuben Crenshaw Dec. 20, 2003

Dec. 20, 2003

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RELEASED Python 2.3.3 (final)
by Anthony Baxter Dec. 19, 2003

Dec. 19, 2003

On behalf of the Python development team and the Python community, I'm happy to announce the release of Python 2.3.3 (final). Python 2.3.3 is a bug-fix release of Python 2.3. A couple of serious bugs related to weakrefs and the cyclic garbage collector have been fixed, along with a number of bugs in the standard library. See the release notes on the web page for more details. For more information on Python 2.3.3, including download links for various platforms, release notes, and known … [View More]

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Python-announce-list-request ocb orzmsmz fur
by Nichole Villalobos Dec. 19, 2003

Dec. 19, 2003

Hi Python-announce-list-request , I have a picture online now. I just want someone to know me before they see me. I just feel better that way. (but believe me you wont be disappointed) Well i am 22 years old. I have a very out going personality. I love to meet new people, i am on the varsity cheerleading squad. I like the little romantic stuff and love to be swept off my feet and suprised. I am currently looking for a relationship. All around if i were to use 3 words to describe me id … [View More]

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