Mailman 3 September 2004 - Python-Dev

Re: Planning to drop gzip compression for future releases
by Paul F. Dubois 19 Sep '04

19 Sep '04

Some of this discussion has wandered into the 'we are all competent computer people here so what is the problem going to get x and installing it' line of reasoning. Many Python users are not very good at computing. If they know how to install Python now why make that disappear? The fact that in principle they could manage somehow if we didn't provide a zip file doesn't mean they should have to. It just isn't a big deal on our end. Not only are batteries included, but we have several sizes to fit your equipment.

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tabs in httplib.py and test_httplib.py
by Simon Percivall 19 Sep '04

19 Sep '04

The title says it all, tabs breaking installation. Lines 537 and 538 in httplib.py Lines 124, 129, 130, 131 in test_httplib.py //Simon

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decorator support
by Raymond Hettinger 19 Sep '04

19 Sep '04

In my experiments with decorators, it is common to wrap the original function with a new function. After creating the new function, there are efforts to make it look like the old: newf.__doc__ = oldf.__doc__ # copy the docstring newf.__dict__.update(oldf.__dict__) # copy attributes newf.__name__ = oldf.__name__ # keep the name (new in Py2.4) All is well and good except the argspec. Running help() on the new function gives: funcname(*args, **kwds) The original docstring Running help() on the original function gives: funcname(arg1, arg2) The original docstring So, it would be nice if there were some support for carrying forward the argspec to inform help(), calltips(), and inspect(). FWIW, I do know that with sufficient gyrations a decorator could do this on its own, but it is way too difficult for general use. Raymond

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RE: [Python-Dev] Re: Missing arguments in RE functions
by Michael Chermside 19 Sep '04

19 Sep '04

Fredrik Lundh writes: > the "I didn't prepare properly, didn't know what I was talking about, > and didn't know what do answer when my students asked me a legitimate > question" argument isn't a good reason to change the language. > > if you're doing Python training, make sure you know your > Python. I do, > and I very seldom have problems explaining how things work. Fredrik, a less hostile response would be appropriate here. No one knows every detail of every API of any reasonably sized library (like Python's). Students ask questions about the darndest things. If you have never been stumped by a student's question then you're not teaching the right people. My opinion on the underlying question is this: We have two ways of doing things: using compiled REs, and using the RE functions. Our goal is to make Python's API be so simple and easy to understand that people DON'T have to memorize every little detail -- it should be "obvious". That is, in my opinion, the strongest reason in favor of minimal APIs. Right now, there are some things you can do with the RE functions and a DIFFERENT set of things you can do with the compiled REs. That's TWO sets of functionality to learn. If Noam's patch can make the feature set of the RE functions the SAME as the feature set of the compiled REs, then there's only ONE set of features to memorize. On the whole, there are MORE indiviual "pieces" to the API but because of orthogonality the API as a whole is simpler. Therefore in this case I favor using Noam's patch. My next-favorite alternative would actually be to remove the RE functions so there's "only one way to do it". But the functions are conceptually simpler (as Noam showed, the docs describe the functions then say the compiled REs work "just the same"), and they've been in place for years... removing them is not an option. -- Michael Chermside

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urllib.urlopen() vs IDNs, percent-encoded hosts, ':'
by Mike Brown 18 Sep '04

18 Sep '04

Over the last couple of years, while implementing an RFC 2396 and RFC 2396bis compliant URI library for 4Suite, I've amassed a sizable list of, um, complaints about urllib. Many of the issues I have run into are attributable to the age of urllib (I am pretty sure it predates the unicode type) and the obsolescence of the specs on which parts of it are based (it's essentially in RFC 1808 land, with a smattering of patches to bring aspects of it closer to RFC 2396). Other issues are matters of API entrenchment, either for the convenience for users (e.g. treating '/' and '\' as equivalent on Windows) or for compatibility with the APIs of other libraries & applications. When I'm comfortable enough with 4Suite's Ft.Lib.Uri APIs I intend to formally propose incorporating updated implementations into Python core, perhaps distributed among urllib, urllib2, and urlparse or maybe in a new module, as appropriate. I'm not really ready to make such a proposal, though, as I still have some philosophical questions about str/unicode transparency in APIs (e.g. urllib.unquote, when given unicode, does not percent-decode characters above \u007f, and I'm wondering if that's ideal), and I am also unclear on what the policy is regarding using regular expressions in core Python modules -- it seems to be a no-no, but I don't know for sure... any comments on that particular matter would be appreciated. Anyway, there's at least one part of Ft.Lib.Uri that I think could stand to be addressed more immediately: there is a bit of transformation that one must perform on a spec-conformant URI in order to get urllib.urlopen() to process it correctly. This should not be necessary, IMHO. The main issues are: 1. urlopen() cannot reliably process unicode unless there are no percent-encoded octets above %7F and no characters above \u007f (I think that's the gist of it, at least). I don't think this is necessarily a bug, as a proper URI will never contain non-ASCII characters. However since urlopen()'s API is unfortunately such that it accepts OS-specific filesystem paths, which nowadays may be unicode, it may be time to tighten up the API and say that the url argument *must* be a URI, and that if unicode is given, it will be converted to str and thus must not contain non-ASCII characters. 2. urlopen() (the URI scheme-specific openers it uses, actually) does not percent-decode the host portion of a URL before doing a DNS lookup. This wasn't really a problem until IDNs came along; no one was using non-ASCII in their hostnames. But now we have to deal with URLs where the host component is a string of percent-encoded UTF-8 octets, like 'http://www.%E3%81%BB%E3%82%93%E3%81%A8%E3%81%86%E3%81%AB%E3%81%AA%E3%81%8C%…' which are supposed decoded back to Unicode (in this case, it's a string of Japanese characters) and then IDNA-encoded for the DNS lookup, so that it will be interpreted as if it were the equally-unintelligible-but-DNS-friendly 'http://www.xn--n8jaaaaai5bhf7as8fsfk3jnknefdde3fg11amb5gzdb4wi9bya3kc6lra.w…' Even though IDNs are the main application for percent-encoded octets in the host component, it is necessary in simpler cases as well, like 'http://www.w%33.org' which would need to be interpreted as 'http://www.w3.org' Python 2.3 introduced an IDNA codec, and both the socket and httplib modules were updated to accept unicode hostnames (e.g. the Japanese characters represented by, but not shown, in the examples above), automatically applying IDNA encoding prior to doing the DNS lookup. urllib's urlopeners were *not* updated accordingly. This should be changed. The way I do it in Ft.Lib.Uri is to rewrite the hostname, regardless of its URI scheme (since once I pass it to urlopen it's out of my hands), to a percent-decoded, IDNA-encoded version before passing it to urlopen. Ideally it should be handled by each opener as necessary, I think. 3. On Windows, urlopen() only recognizes '|' as a Windows drivespec character, whereas ':' is just as, if not more, common in 'file' URIs. file:///C:/Windows/notepad.exe is a perfectly valid 'file' URI and should not fail to be interpreted on Windows as C:\Windows\notepad.exe. Currently the only way to get it to work is to replace the ':' with '|', which was established in the days of the Mosaic web browsers, I believe, and that has remained as a widely supported, but arbitrary & unnecessary convention. I would prefer that all the APIs that expect '|' instead of ':' be updated to not consider '|' to be canon, but the simplest workaround for the sake of using ':'-containing URIs with urllib.urlopen() is just to do a simle string replacement in the path, e.g. if os.name == 'nt' and scheme == 'file': path = path.replace(':','|',1) (assuming you've already got the path and scheme components of the given URI split out). I would appreciate any comments that anyone has on the feasibility of these suggestions. Thanks, Mike P.S. If you're curious, the current version of Ft.Lib.Uri is at http://cvs.4suite.org/cgi-bin/viewcvs.cgi/4Suite/Ft/Lib/Uri.py and a test suite for it (which relies on a custom framework, not unittest, but that should be fairly understandable anyway) is at http://cvs.4suite.org/cgi-bin/viewcvs.cgi/4Suite/test/Lib/test_uri.py The function that I am currently using to massage a URI to make it safe for urllib.urlopen() is named MakeUrllibSafe. I wouldn't recommend it as-is, though, since it relies on other functions that deal with more convoluted unicode issues that I'm trying to avoid asking about in this post.

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RE: [Python-Dev] Decimal, copyright and license
by Batista, Facundo 17 Sep '04

17 Sep '04

#- > Remember that the "decimal installer" will be available #- for download #- > not in a Python location. #- #- For the ignorant (me): what's a "decimal installer"? An installer which puts the decimal module in site-packages. Sorry for the before-turn-on-neurons-written mail. . Facundo

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Re: Weekly Python Patch/Bug Summary
by Skip Montanaro 17 Sep '04

17 Sep '04

Kurt> Patch / Bug Summary Kurt> ___________________ Kurt> Patches : 241 open ( -6) / 2622 closed (+26) / 2863 total (+20) Kurt> Bugs : 764 open ( +6) / 4453 closed (+38) / 5217 total (+44) Kurt> RFE : 150 open ( +2) / 131 closed ( +0) / 281 total ( +2) Let me take the opportunity to thank Kurt for providing this excellent summary (much better than my original hack) and invite the larger Python community to participate in Python's development by reviewing patches and bug reports. If you're new to Python development, I urge you to read http://www.python.org/dev/dev_intro.html especially the "Helping Out" section. Skip

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Weekly Python Patch/Bug Summary
by Kurt B. Kaiser 17 Sep '04

17 Sep '04

Patch / Bug Summary ___________________ Patches : 241 open ( -6) / 2622 closed (+26) / 2863 total (+20) Bugs : 764 open ( +6) / 4453 closed (+38) / 5217 total (+44) RFE : 150 open ( +2) / 131 closed ( +0) / 281 total ( +2) New / Reopened Patches ______________________ Use Py_CLEAR where necessary to avoid crashes (2004-09-01) http://python.org/sf/1020188 reopened by mwh Decimal performance enhancements (2004-09-02) http://python.org/sf/1020845 opened by Nick Coghlan topdir calculated incorrectly in bdist_rpm (2004-09-03) http://python.org/sf/1022003 opened by Anthony Tuininga add support for the AutoReq flag in bdist_rpm (2004-09-03) http://python.org/sf/1022011 opened by Anthony Tuininga Improve Template error detection and reporting (2004-09-03) CLOSED http://python.org/sf/1022173 opened by Raymond Hettinger test_random depends on os.urandom (2004-09-03) CLOSED http://python.org/sf/1022176 opened by Raymond Hettinger Conserve memory with list.pop() (2004-09-06) CLOSED http://python.org/sf/1022910 opened by Raymond Hettinger CodeContext - an extension to show you where you are (2004-04-16) http://python.org/sf/936169 reopened by noamr Add arguments to RE functions (2004-09-08) CLOSED http://python.org/sf/1024041 opened by Noam Raphael Fix for 1022152 (2004-09-08) CLOSED http://python.org/sf/1024238 opened by Andrew Durdin Error when int sent to PyLong_AsUnsignedLong (2004-09-08) http://python.org/sf/1024670 opened by Clinton R. Nixon Check for NULL returns in compile.c:com_import_stmt (2004-09-10) http://python.org/sf/1025636 opened by Dima Dorfman Add status code constants to httplib (2004-09-10) http://python.org/sf/1025790 opened by Andrew Eland Clarify language in Data Structures chapter of tutorial (2004-09-10) CLOSED http://python.org/sf/1025795 opened by Dima Dorfman Fix TeX pasto in liboptparse.tex (2004-09-10) CLOSED http://python.org/sf/1025800 opened by Dima Dorfman typo repair (2004-09-12) CLOSED http://python.org/sf/1026384 opened by George Yoshida Add keyword arguments to Template substitutions (2004-09-12) CLOSED http://python.org/sf/1026859 opened by Raymond Hettinger building on OpenBSD 3.5 (2004-09-12) CLOSED http://python.org/sf/1026986 opened by Trevor Perrin Specify a source baseurl for bdist_rpm. (2004-09-15) http://python.org/sf/1028432 opened by Chris Ottrey Adding IPv6 host handling to httplib (2004-09-15) http://python.org/sf/1028502 opened by David Mills Changes to cookielib.py & friends for 2.4b1 (2004-09-16) http://python.org/sf/1028908 opened by John J Lee tarfile.py longnames are truncated in getnames() (2004-09-16) http://python.org/sf/1029061 opened by Lars Gustäbel Patches Closed ______________ Use Py_CLEAR where necessary to avoid crashes (2004-09-01) http://python.org/sf/1020188 closed by rhettinger Py_CLEAR to implicitly cast its argument to PyObject * (2004-09-01) http://python.org/sf/1020185 closed by rhettinger Implementation for PEP 318 using syntax J2 (2004-08-22) http://python.org/sf/1013835 closed by ms_ fix for several sre escaping bugs (fixes #776311) (2004-08-29) http://python.org/sf/1018386 closed by niemeyer Improve Template error detection and reporting (2004-09-03) http://python.org/sf/1022173 closed by rhettinger test_random depends on os.urandom (2004-09-03) http://python.org/sf/1022176 closed by rhettinger bsddb's DB.keys() method ignores transaction argument (2004-08-26) http://python.org/sf/1017405 closed by greg Conserve memory with list.pop() (2004-09-06) http://python.org/sf/1022910 closed by rhettinger PEP 292 reference implementation (2004-03-23) http://python.org/sf/922115 closed by bcannon Multi-line strings and unittest (2004-08-30) http://python.org/sf/1019220 closed by purcell Decoding incomplete unicode (2004-07-27) http://python.org/sf/998993 closed by doerwalter Add arguments to RE functions (2004-09-07) http://python.org/sf/1024041 closed by rhettinger Fix for 1022152 (2004-09-08) http://python.org/sf/1024238 closed by jlgijsbers Fix for duplicate attributes in generated HTML (2004-08-20) http://python.org/sf/1013055 closed by fdrake Address bug 980938, add set_debug_output() function (2004-07-03) http://python.org/sf/984492 closed by jlgijsbers make test_fcntl 64bit clean (2003-09-13) http://python.org/sf/805626 closed by loewis NetBSD py_curses.h fix (2003-09-15) http://python.org/sf/806800 closed by loewis Add script support to bdist_rpm.py (2003-09-17) http://python.org/sf/808115 closed by loewis Add --force-arch=ARCH to bdist_rpm.py (2003-09-17) http://python.org/sf/808120 closed by loewis Clarify language in Data Structures chapter of tutorial (2004-09-10) http://python.org/sf/1025795 closed by jlgijsbers Fix TeX pasto in liboptparse.tex (2004-09-10) http://python.org/sf/1025800 closed by jlgijsbers typo repair (2004-09-11) http://python.org/sf/1026384 closed by jlgijsbers make Demo/scripts/primes.py usable as a module (2004-01-04) http://python.org/sf/870286 closed by jlgijsbers reflect the removal of mpz (2003-11-15) http://python.org/sf/842567 closed by jlgijsbers Add keyword arguments to Template substitutions (2004-09-12) http://python.org/sf/1026859 closed by bwarsaw building on OpenBSD 3.5 (2004-09-13) http://python.org/sf/1026986 closed by loewis fix for glob with directories which contain brackets (2003-05-15) http://python.org/sf/738389 closed by progoth New / Reopened Bugs ___________________ a wrong link from "frame object" in lib index (2004-09-01) CLOSED http://python.org/sf/1020540 opened by Ilya Sandler senddigest error (2004-09-01) http://python.org/sf/1020605 opened by James O'Kane PyThreadState_Next not thread safe? (2004-09-02) http://python.org/sf/1021318 opened by John Ehresman Trivial fix for obscure bug in os.urandom() (2004-09-03) http://python.org/sf/1021596 opened by Nick Mathewson use first_name, not first, in code samples (2004-09-02) http://python.org/sf/1021621 opened by Steve R. Hastings 2.4a3: unhelpful error message from distutils (2004-09-03) http://python.org/sf/1021756 opened by Fredrik Lundh Import random fails (2004-09-03) CLOSED http://python.org/sf/1021890 opened by Paul D. Lusk wrong options are set to python.exe (2004-09-03) http://python.org/sf/1022010 reopened by loewis wrong options are set to python.exe (2004-09-04) CLOSED http://python.org/sf/1022010 opened by George Yoshida re.match(), re.MULTILINE and "^" broken (2004-09-03) CLOSED http://python.org/sf/1022030 opened by Pat Notz Bad examples of gettext.translation (2004-09-03) CLOSED http://python.org/sf/1022152 opened by Facundo Batista x, y in curses window object documentation (2004-09-04) http://python.org/sf/1022311 opened by Felix Wiemann Solaris: reentrancy issues (2004-08-29) http://python.org/sf/1018492 reopened by loewis test_xrange fails on osf1 v5.1b (2004-09-06) http://python.org/sf/1022813 opened by roadkill random.shuffle should restrict the type of its argument (2004-09-06) CLOSED http://python.org/sf/1022880 opened by Faheem Mitha Generator exps fail with large value of range (2004-09-06) CLOSED http://python.org/sf/1022912 opened by Andy Elvey make test fails on HP-UX11i (2004-09-06) CLOSED http://python.org/sf/1022951 opened by Richard Townsend binascii.a2b_hqx("") raises SystemError (2004-09-06) CLOSED http://python.org/sf/1022953 opened by Florian Bauer Example does not match diagram. (2004-09-06) CLOSED http://python.org/sf/1023359 opened by Nefarious CodeMonkey, Jr. script which sets random.seed still returns random value (2004-09-07) CLOSED http://python.org/sf/1023453 opened by Faheem Mitha test__locale fails (2004-09-07) CLOSED http://python.org/sf/1023798 opened by Michael Hudson Include/pyport.h: Bad LONG_BIT assumption on non-glibc sys (2004-09-07) http://python.org/sf/1023838 opened by Gregor Richards WinCVS doesn't recognize 2.4a3 (2004-09-08) CLOSED http://python.org/sf/1024427 opened by David W. Thomas struct.calcsize() behaves strangely with short type (2004-09-09) CLOSED http://python.org/sf/1024669 opened by Serafeim Zanikolas shutils.rmtree() uses excessive amounts of memory (2004-09-09) http://python.org/sf/1025127 opened by James Henstridge HTML Documentation for 2.4a3 not found (2004-09-09) http://python.org/sf/1025392 opened by Colin J. Williams email.Utils.parseaddr fails to parse valid addresses (2004-09-09) http://python.org/sf/1025395 opened by Charles asyncore.file_dispatcher should not take fd as argument (2004-09-10) http://python.org/sf/1025525 opened by david houlder tkinter.py invalid number of parameter for _tkinet.create (2004-09-10) CLOSED http://python.org/sf/1025599 opened by bertrandbfr X to the power of 0 may give wrong answer (2004-09-10) CLOSED http://python.org/sf/1025872 opened by Nick Coghlan "ASCII" in doc section "String literals" (2004-09-10) CLOSED http://python.org/sf/1026038 opened by Felix Wiemann Confusing error message when subclassing from invalid base (2004-09-11) CLOSED http://python.org/sf/1026269 opened by Gerrit Holl iso-latin-1 strings and functions lower & upper (2004-09-11) CLOSED http://python.org/sf/1026480 opened by Tomasz Kowaltowski HardwareRandom should be renamed OSRandom (2004-09-13) CLOSED http://python.org/sf/1027105 opened by Trevor Perrin unicode DNS names in socket, urllib, urlopen (2004-09-13) http://python.org/sf/1027206 opened by Damjan Georgievski socket.ssl should explain that it is a 2/3 connection (2004-09-13) http://python.org/sf/1027394 opened by adam goucher Argument missing from calltip for new-style class init (2004-09-13) http://python.org/sf/1027566 opened by Loren Guthrie os.stat errors when using shared drive on XP or NT (2004-09-13) http://python.org/sf/1027570 opened by zeke In DOM Node Objects, add more explanations for insertBefore (2004-09-14) http://python.org/sf/1027771 opened by M.-A. DARCHE Cookies without values are silently ignored (by design?) (2004-09-14) http://python.org/sf/1028088 opened by Doug Sheppard date-datetime comparison (2004-09-14) CLOSED http://python.org/sf/1028306 opened by Donnal Walter get_installer_filename (2004-09-15) http://python.org/sf/1028334 opened by bingo Python 2.3.4 broken? (2004-09-15) CLOSED http://python.org/sf/1028447 opened by Stan Problem linking on windows using mingw32 and C++ (2004-09-15) http://python.org/sf/1028697 opened by Steve Menard No command line args when script run without python.exe (2004-09-16) http://python.org/sf/1029047 opened by Kerim Borchaev PEP 302 loader not carried through by reload function (2004-09-16) http://python.org/sf/1029475 opened by Stephen Haberman test_pep277 fails (2004-09-17) http://python.org/sf/1029561 opened by Marel Baczynski Bugs Closed ___________ Crash from Rapid Clicks (2004-07-14) http://python.org/sf/990911 closed by kbk a wrong link from "frame object" in lib index (2004-09-01) http://python.org/sf/1020540 closed by rhettinger httplib.HTTPConnection sends extra blank line (2004-08-31) http://python.org/sf/1019956 closed by jhylton re.sub: two-digit group-reference hangs (2004-08-30) http://python.org/sf/1018815 closed by niemeyer re.finditer hangs on final empty match (2003-10-03) http://python.org/sf/817234 closed by niemeyer Make Problem on HPUX (2004-07-14) http://python.org/sf/991125 closed by plusk Import random fails (2004-09-03) http://python.org/sf/1021890 closed by rhettinger Regular expression failure of the sre engine (2003-07-23) http://python.org/sf/776311 closed by niemeyer wrong options are set to python.exe (2004-09-03) http://python.org/sf/1022010 closed by loewis wrong options are set to python.exe (2004-09-03) http://python.org/sf/1022010 closed by loewis re.match(), re.MULTILINE and "^" broken (2004-09-03) http://python.org/sf/1022030 closed by effbot Bad examples of gettext.translation (2004-09-04) http://python.org/sf/1022152 closed by jlgijsbers Solaris: reentrancy issues (2004-08-29) http://python.org/sf/1018492 closed by loewis including Python.h redefines _POSIX_C_SOURCE (2004-08-27) http://python.org/sf/1017450 closed by loewis inspect.getmodule symlink-related failur (2002-06-18) http://python.org/sf/570300 closed by jlgijsbers __metaclass__ in locals is ignored (2004-08-30) http://python.org/sf/1019048 closed by bcannon split method documentation can be improved (2004-02-21) http://python.org/sf/901654 closed by rhettinger random.shuffle should restrict the type of its argument (2004-09-05) http://python.org/sf/1022880 closed by rhettinger Generator exps fail with large value of range (2004-09-06) http://python.org/sf/1022912 closed by rhettinger make test fails on HP-UX11i (2004-09-06) http://python.org/sf/1022951 closed by rhettinger binascii.a2b_hqx("") raises SystemError (2004-09-06) http://python.org/sf/1022953 closed by rhettinger mimetypes add_type has bogus self parameter (2004-08-23) http://python.org/sf/1014022 closed by doerwalter Example does not match diagram. (2004-09-06) http://python.org/sf/1023359 closed by akuchling "rich comparison'' methods hide stack overflow (2004-08-30) http://python.org/sf/1019129 closed by rhettinger script which sets random.seed still returns random value (2004-09-07) http://python.org/sf/1023453 closed by rhettinger test__locale fails (2004-09-07) http://python.org/sf/1023798 closed by bcannon WinCVS doesn't recognize 2.4a3 (2004-09-08) http://python.org/sf/1024427 closed by loewis os.system segmentation fault (2004-08-25) http://python.org/sf/1015937 closed by nnorwitz struct.calcsize() behaves strangely with short type (2004-09-08) http://python.org/sf/1024669 closed by mwh RE engine internal error with LARGE RE: scalability bug (2003-12-10) http://python.org/sf/857676 closed by effbot "build" target doesn't check umask (2004-06-22) http://python.org/sf/977937 closed by melicertes tkinter.py invalid number of parameter for _tkinet.create (2004-09-10) http://python.org/sf/1025599 closed by loewis X to the power of 0 may give wrong answer (2004-09-10) http://python.org/sf/1025872 closed by tim_one Unspecific errors with metaclass (2004-08-23) http://python.org/sf/1014215 closed by rhettinger "ASCII" in doc section "String literals" (2004-09-10) http://python.org/sf/1026038 closed by loewis Confusing error message when subclassing from invalid base (2004-09-11) http://python.org/sf/1026269 closed by mwh iso-latin-1 strings and functions lower & upper (2004-09-11) http://python.org/sf/1026480 closed by kowaltowski crash error in glob.glob; directories with brackets (2003-05-15) http://python.org/sf/738361 closed by progoth HardwareRandom should be renamed OSRandom (2004-09-13) http://python.org/sf/1027105 closed by rhettinger date-datetime comparison (2004-09-14) http://python.org/sf/1028306 closed by tim_one Python 2.3.4 broken? (2004-09-15) http://python.org/sf/1028447 closed by mwh New / Reopened RFE __________________ proposed struct module format code addition (2004-09-06) http://python.org/sf/1023290 opened by Josiah Carlson urllib2 http auth (2004-09-10) http://python.org/sf/1025540 opened by Tim Nelson

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--with-tsc compile fails
by Jeremy Hylton 17 Sep '04

17 Sep '04

I'm feeling pretty out of it :-). I'm very happy to see that the Pentium tsc patch made it into the core; I had missed it. I'm amused that the Pentium tsc patch works for PPC, too. Anyway, I tried to use it this evening and the compilation failed: ../Python/ceval.c:50:21: asm/msr.h: No such file or directory ../Python/ceval.c: In function `PyEval_EvalFrame': ../Python/ceval.c:575: warning: implicit declaration of function `rdtscll' ../Python/ceval.c:572: warning: `inst0' might be used uninitialized in this function ../Python/ceval.c:572: warning: `inst1' might be used uninitialized in this function ../Python/ceval.c:572: warning: `loop0' might be used uninitialized in this function ../Python/ceval.c:572: warning: `loop1' might be used uninitialized in this function It sounds like <asm/msr.h> is for Microsoft platforms, but I'm building on Linux. Perhaps the change to add PPC support screwed up the ifdefs that were detecting a Windows compile? Does it work for anyone else? Jeremy

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PEP 302 and 'reload()'
by Phillip J. Eby 17 Sep '04

17 Sep '04

It appears to me there is an error in both PEP 302's specification and its implementation concerning the correct operation of reload(). First, it says: The load_module() method has a few responsibilities that it must fulfill *before* it runs any code: - It must create the module object. From Python this can be done via the new.module() function, the imp.new_module() function or via the module type object; from C with the PyModule_New() function or the PyImport_ModuleAdd() function. This should probably say that if the module already exists in sys.modules, it should reuse the existing module object, rather than creating a new one. Otherwise, 'reload()' cannot fulfill its contract. Second, the actual implementation of PyImport_ReloadModule doesn't actually use a loader object, so reload() doesn't work with import hooks at all. There's an SF bug report for this, and a patch to fix it (that also adds a test to test_importhooks to ensure that 'reload()' actually invokes the loader. Are there any objections to me fixing either/both of these, and backporting the bugfix to the 2.3 maintenance branch? Also, should PyImport_ReloadModule use the import lock? It doesn't currently, but I'm not clear on why it doesn't.

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