Mailman 3 May 2008 - Python-Dev

Obtaining short file path
by Hartwell Bryan 09 Jun '08

09 Jun '08

Hi, Purpose: obtaining the system ("short") path from a full path Background: File dialogs (visual studio) return a full path (e.g. f="C:\this path has spaces\thisfilenameislongerthan8char.txt"). If this value is provided to Python, it will not recongize this as a file. In fact os.path.isfile(f) doesn't return false, it crashes. Likewise, when calling executables (from Python) with files as arguments a short path is required. VB FileSystemObject has the ShortPath method, while os.path and path (www.jorendorff.com) modules do not (at least as far as my googling could determine). Why bother creating a COM interface when you're just going to pass as shell run-time arguments all the values the server is better at computing? System: Python 2.3; Windows XP Sample Code: import win32com.client import time import os,sys import os.path #------------------------------------------------------------- def shortpath(x): z='' for y in x.split('\\'): if len(y.split('.')[0])>8: if ('.' in y): z=z+'\\'+y.split('.')[0][:6].upper()+'~1'+'.'+y.split('.')[1] else: z=z+'\\'+y[:6].upper()+'~1' else: z=z+'\\'+y return z[1:] #------------------------------------------------------------- xlApp = win32com.client.Dispatch("Excel.Application") xlBook = xlApp.ActiveWorkbook savFile = str(sys.argv[1]) rawFile = str(xlBook.Sheets("Timestamp").TextBox2) #print os.path.isfile(savFile) r=shortpath(rawFile) print r try: print os.path.isfile(r) except: print 'something rude' time.sleep(7) Notes: This code does not account for peer paths or files that share the first 8 characters (and file extension). I'm also aware that this is not the normal means for submitting a "patch", but in my job function I don't see myself regularly participating in python development (and I'm probably not savvy enough) so the effort wasn't worth it. However I still thought others might benefit from what seems to be (to me) a fundamental path function. Do with it, or ignore it, as you please. Cheers, Bryan Hartwell This message is intended only for the use of the intended recipients, and it may be privileged and confidential. If you are not the intended recipient, you are hereby notified that any review, retransmission, conversion to hard copy, copying, circulation or other use of this message is strictly prohibited. If you are not the intended recipient, please notify me immediately by return e-mail, and delete this message from your system.

4 3

ABC issues
by Georg Brandl 07 Jun '08

07 Jun '08

Some ABC issues: * The 2.6-backported Mapping ABC has the 3.0 dict API, that is, it uses keys() that returns a view etc. * The 2.6 UserDict is not registered as a mapping. * collections.deque isn't registered as a MutableSequence. If there are no objections, I will correct these issues in the 2.6 and 3.0 branches. Georg

5 12

PEP 371 Discussion (pyProcessing Module)
by Jesse Noller 02 Jun '08

02 Jun '08

Georg kindly published the PEP I submitted last night to the PEP site: http://www.python.org/dev/peps/pep-0371/ This PEP includes some of the previous discussion on the processing module's inclusion, and I hope clears up/clarifies some of the goals/non goals and issues. I also included benchmark data and a link to the code used for said benchmarks. I would like to renew the discussion now that "there is a PEP" to see if there are any outstanding things people would like to get resolved. I chose to continue to push it for 2.6 / 3.0 inclusion due to feedback both here and elsewhere that people would rather see this in sooner in some form, rather than later (i.e.: 2.7/3.1). -Jesse

13 22

Issue2889: Add Curses for Windows as native module for 2.6
by techtonik 02 Jun '08

02 Jun '08

Does anyone would like to include Curses support in Windows from version 2.6? It works ok already using the patch from issue #2889 and PDCurses library, but needs expertise of core developers to integrate the patch into the build system, add library to externals to ship next windows Python with embedded curses support. I would really like to see this as release blocker, because the problem raised once in a while in the past and the windows people who are interested in getting console interface tools usually lack the knowledge of unix platform to do the task. P.S. It is all about cross-platform roguelikes and text-mode players in Python [1] http://bugs.python.org/issue2889 -- --anatoly t.

4 8

Re: [Python-Dev] Iterable String Redux (aka String ABC)
by Greg Ewing 01 Jun '08

01 Jun '08

Bill Janssen wrote: > Look, even if there were *no* additional methods, it's worth adding > the base class, just to differentiate the class from the Sequence, as > a marker, so that those of us who want to ask "isinstance(o, String)" > can do so. Doesn't isinstance(x, basestring) already cover that? -- Greg

9 21

Finishing up PEP 3108
by Brett Cannon 01 Jun '08

01 Jun '08

The issues related to PEP 3108 now total 14. With the beta (supposedly) in a week, I am hoping the last minor details can be pulled together or decisions made on what can be postponed and what should definitely be considered a release blocker. Issue 2847 - the aifc module still imports the cl module in 3.0. Problem is that the cl module is gone. =) So it seems silly to have the imports lying about. This can probably be changed to critical. Issue 2848 - mimetools has been deprecated for a while, but it is still used in a bunch of places. Since this has been deprecated in PEP 4 for a long time, should we add the removal warning in 2.6 now and then make its actual removal of usage something to do by another beta? Issue 2849 - rfc822 is the same problem as mimetools. Issue 2854 - gestalt needs to be added back into 3.0. This is Benjamin's issue. =) Issue 2873 - htmllib is slated to go, but pydoc still uses it. Then again, pydoc is busted thanks to the new doc format. Issue 2874 - the stat module is not so useful anymore, but it still has functions that are useful. Currently the value returned by os.stat() is a named tuple, but that won't support methods. So the object returned by os.stat() needs to probably become a proper object in posix. Issue 2876 - The UserDict module has been removed in 3.0, but two classes were moved and renamed in collections and another was removed. The removal is a 3.0 warning, but the class renaming might be a tricky 2to3 fixer (not sure if the fix_imports fixer can be tweaked to handle this). Issue 2877 - UserString.UserString moved. Just need to apply the patch. Issue 2878 - Ditto for UserList. Issue 2885 - Creation of the urllib package. Jeremy has been working on this. I believe his patch is up on rietveld. Issue 2917 - This is merging pickle and cPickle. Alexandre's thing. Issue 2918 - Same for StringIO/cStringIO. Issue 2919 - profile and cProfile needs to be merged. This has not been dealt with yet. Would it be reasonable to deprecate importing cProfile directly in 2.6 with the assumption the merge will work out for 3.0? So that is everything that's left. Issue 2775 is the tracking issue so you can look there to see what issues are still open and need work. I was hoping to spend Monday and Tuesday trying to tie up as many loose ends as possible, but the conference paper I have been working on that was due Sunday is now due a week later, and so Monday and Tuesday will be spent on that (supervisor's orders). Plus I am flying out Wednesday for 10 days to help my mother move and I don't know when I will get Net again. In other words, I still need help. =) -Brett P.S.: A huge thanks goes to everyone who has helped so far. My life has been nothing but stress for a while now and you guys have helped keep the stress from reaching epic proportions.

6 9

Re: [Python-Dev] [Python-3000] Finishing up PEP 3108
by Mark Dickinson 01 Jun '08

01 Jun '08

On Sat, May 31, 2008 at 11:33 AM, Georg Brandl <g.brandl(a)gmx.net> wrote: > > Now that the docs are reST, the source is almost pretty enough to display > it raw, but I could also imagine a "text" writer that removes the more > obscure markup to present a casual-reader-friendly text version. > > The needed sources could then be distributed with Python -- it shouldn't > be more than about 200 kb. > +1 from me. Would this mean that htmllib and sgmllib could be removed without further ado. Mark

3 2

Re: [Python-Dev] Finishing up PEP 3108
by Steve Holden 31 May '08

31 May '08

Georg Brandl wrote: > Brett Cannon schrieb: > >>>> Issue 2873 - htmllib is slated to go, but pydoc still uses it. Then >>>> again, pydoc is busted thanks to the new doc format. >>> >>> I will try to handle this in the coming week. >>> >> >> Fred had the interesting suggestion of removing pydoc in Py3K based on >> the thinking that documentation tools like pydoc should be external to >> Python. With the docs now so easy to generate directly, should pydoc >> perhaps just be gutted to only what is needed for help() to work? > > pydoc is fine for displaying docstring help, and interactive help. > This should stay. > > Of course, it would also be nice for ``help("if")`` to work effortlessly, > which it currently only does if the generated HTML documentation is > available somewhere, which it typically isn't -- on Unix most distributions > put it in a separate package (from which pydoc won't always find it > of its own), on Windows only the CHM file is distributed and must be > decompiled to get single HTML files. > > Now that the docs are reST, the source is almost pretty enough to display > it raw, but I could also imagine a "text" writer that removes the more > obscure markup to present a casual-reader-friendly text version. > > The needed sources could then be distributed with Python -- it shouldn't > be more than about 200 kb. The versioned documentation will sometimes be available from the Internet if you want to think about using that as a fallback source. It *would* be nice if help("if") worked. It would be even handier if help(if) worked, but that's a syntax problem, and it would be a horrendous one to overcome, I suspect. regards Steve -- Steve Holden +1 571 484 6266 +1 800 494 3119 Holden Web LLC http://www.holdenweb.com/

1 0

Iterable String Redux (aka String ABC)
by Armin Ronacher 30 May '08

30 May '08

Hi, Strings are currently iterable and it was stated multiple times that this is a good idea and shouldn't change. While I still don't think that that's a good idea I would like to propose a solution for the problem many people are experiencing by introducing an abstract base class for strings. Basically *the* problematic situation with iterable strings is something like a `flatten` function that flattens out every iterable object except of strings. Imagine it's implemented in a way similar to that:: def flatten(iterable): for item in iterable: try: if isinstance(item, basestring): raise TypeError() iterator = iter(item) except TypeError: yield item else: for i in flatten(iterator): yield i A problem comes up as soon as user defined strings (such as UserString) is passed to the function. In my opinion a good solution would be a "String" ABC one could test against. Regards, Armin

18 32

Summary of Python tracker Issues
by Python tracker 30 May '08

30 May '08

ACTIVITY SUMMARY (05/23/08 - 05/30/08) Python tracker at http://bugs.python.org/ To view or respond to any of the issues listed below, click on the issue number. Do NOT respond to this message. 1889 open (+35) / 12944 closed (+25) / 14833 total (+60) Open issues with patches: 566 Average duration of open issues: 706 days. Median duration of open issues: 1437 days. Open Issues Breakdown open 1866 (+35) pending 23 ( +0) Issues Created Or Reopened (63) _______________________________ Cant open python gui using VISTA 05/28/08 CLOSED http://bugs.python.org/issue1948 reopened amaury.forgeotdarc Remove commands for PEP 3108 05/26/08 CLOSED http://bugs.python.org/issue2872 reopened brett.cannon patch ElementTree parsing bus error (but only from mod_python) 05/23/08 http://bugs.python.org/issue2951 created kathyvs List comprehensions are leaking variables 05/23/08 CLOSED http://bugs.python.org/issue2952 created cartman _zip_directory_cache untested and undocumented 05/23/08 http://bugs.python.org/issue2953 created fijal [PATCH] Make bisect module functions accept an optional comparis 05/23/08 CLOSED http://bugs.python.org/issue2954 created llucax patch Python 2.5 Documentation error in Tutorial section 8.3 05/24/08 CLOSED http://bugs.python.org/issue2955 created dcw303 2to3 should have a way to disable some fixers 05/24/08 http://bugs.python.org/issue2956 created bhy patch recursion limit exceeded when importing .pyc module 05/24/08 CLOSED http://bugs.python.org/issue2957 created bhy update Lib/test/README 05/24/08 http://bugs.python.org/issue2958 created benjamin.peterson easy calling GzipFile close() more than once causes exception 05/24/08 CLOSED http://bugs.python.org/issue2959 created mmagin patch bsddb/test/test_replication.py bus error, segfault, assertion er 05/25/08 http://bugs.python.org/issue2960 created gregory.p.smith Two error messages inconsistent 05/25/08 CLOSED http://bugs.python.org/issue2961 created chester Goodbye, 'global' statement! 05/25/08 CLOSED http://bugs.python.org/issue2962 created chester Method cache is broken in Py3 05/25/08 CLOSED http://bugs.python.org/issue2963 created scoder patch instancemethod_descr_get() lacks an INCREF 05/25/08 CLOSED http://bugs.python.org/issue2964 created scoder patch Update interface of weakref dictionaries 05/25/08 http://bugs.python.org/issue2965 created georg.brandl patch pydoc doesnt show 'from module import identifier' in the docs 05/25/08 http://bugs.python.org/issue2966 created peter.puk [PATCH] Rename Tkinter to tkinter in test_tcl 05/25/08 CLOSED http://bugs.python.org/issue2967 created cartman patch Test_imports takes a long time to run 05/25/08 http://bugs.python.org/issue2968 created loewis Test_imports fails in 2.6 05/25/08 http://bugs.python.org/issue2969 created loewis test_distutils fails on Linux 05/26/08 CLOSED http://bugs.python.org/issue2970 created cartman test_zipfile64 fails 05/26/08 http://bugs.python.org/issue2971 created cartman arguments and default path not set in site.py and sitecustomize. 05/26/08 http://bugs.python.org/issue2972 created hvendelbo _ssl compiler warnings 05/26/08 http://bugs.python.org/issue2973 created benjamin.peterson test_subprocess fails on Darwin 05/26/08 CLOSED http://bugs.python.org/issue2974 created cartman VS8 include dirs grow without bound 05/26/08 http://bugs.python.org/issue2975 created jkleckner patch test_pydoc fails in trunk 05/26/08 http://bugs.python.org/issue2976 created theller truncation of text in tables in Library Reference PDF 05/26/08 http://bugs.python.org/issue2977 created hsmyers typo in text of page 80 of Library Reference PDF 05/26/08 CLOSED http://bugs.python.org/issue2978 created hsmyers use_datetime in SimpleXMLRPCServer 05/27/08 http://bugs.python.org/issue2979 created vdupras patch Pickle stream for unicode object may contain non-ASCII character 05/27/08 http://bugs.python.org/issue2980 created Mawbid confusing action of struct.pack and struct.unpack with fmt 'p' 05/27/08 http://bugs.python.org/issue2981 created liyu more tests for pyexpat 05/27/08 http://bugs.python.org/issue2982 created fijal Ttk support for Tkinter 05/27/08 http://bugs.python.org/issue2983 created gpolo test_dbm fails on Darwin 05/27/08 CLOSED http://bugs.python.org/issue2984 created cartman xmlrpclib doesn't support 64bit integer replies 05/27/08 CLOSED http://bugs.python.org/issue2985 created shrike patch difflib.SequenceMatcher not matching long sequences 05/27/08 http://bugs.python.org/issue2986 created hagna RFC2732 support for urlparse (e.g. http://[::1]:80/) 05/27/08 http://bugs.python.org/issue2987 created ndim patch Invalid cookies crash web applications 05/28/08 CLOSED http://bugs.python.org/issue2988 created techtonik type_modified() in typeobject.c should be public 05/28/08 CLOSED http://bugs.python.org/issue2989 created scoder patch type cache updates might run cleanup code in an inconsistent sta 05/28/08 CLOSED http://bugs.python.org/issue2990 created scoder patch Bad behavior in PythonWin 05/28/08 CLOSED http://bugs.python.org/issue2991 created hsmyers Bad behavior in PythonWin 05/28/08 CLOSED http://bugs.python.org/issue2992 created hsmyers Bad behavior in PythonWin 05/28/08 CLOSED http://bugs.python.org/issue2993 created hsmyers Bad behavior in PythonWin 05/28/08 CLOSED http://bugs.python.org/issue2994 created hsmyers Idle, some Linuxes, cannot position Cursor by mouseclick 05/28/08 http://bugs.python.org/issue2995 created Sunny0815 IDLE "find in files" output not formatted optimally 05/28/08 http://bugs.python.org/issue2996 created russell.blau patch PyNumberMethods has left-over fields in Py3 05/29/08 http://bugs.python.org/issue2997 created scoder patch UnicodeEncodeError: 'ascii' codec can't encode character 05/29/08 CLOSED http://bugs.python.org/issue2998 created Muallim-i Âli Py30a5: str.replace() tiny doc error 05/29/08 CLOSED http://bugs.python.org/issue2999 created mark 2to3 doesn't handle print(whatever); print nor string.* function 05/29/08 http://bugs.python.org/issue3000 created mark RLock's are SLOW 05/29/08 http://bugs.python.org/issue3001 created jcea shutil.copyfile blocks indefinitely on named pipes 05/29/08 http://bugs.python.org/issue3002 created aioryi sys.stdin.fileno() gives attribute error in IDLE 05/29/08 http://bugs.python.org/issue3003 created markveldhuis Bug in slice.indices() 05/29/08 http://bugs.python.org/issue3004 created anakha patch EasyDialogs - documentation enhancement 05/29/08 http://bugs.python.org/issue3005 created keenethery subprocess.Popen causes socket to remain open after close 05/29/08 http://bugs.python.org/issue3006 created mamulsow Remove old StringIO docs 05/29/08 CLOSED http://bugs.python.org/issue3007 created hdiogenes patch Let bin() show floats 05/30/08 http://bugs.python.org/issue3008 created rhettinger 3.0a5 tarballs contain the code twice 05/30/08 http://bugs.python.org/issue3009 created barry Module cmd documentation enhancement 05/30/08 http://bugs.python.org/issue3010 created deets patch TelnetPopen3, TelnetBase, Expect split 05/30/08 http://bugs.python.org/issue708007 reopened benjamin.peterson patch Issues Now Closed (58) ______________________ Make .pypirc handle multiple servers 128 days http://bugs.python.org/issue1858 tarek patch Cant open python gui using VISTA 2 days http://bugs.python.org/issue1948 loewis stat.ST_CTIME and stat.ST_ATIME problem 64 days http://bugs.python.org/issue2455 gregory.p.smith inconsistency with bare * in parameter list 46 days http://bugs.python.org/issue2613 bgolemon bsddb iterkeys sliently fails when database modified during iter 33 days http://bugs.python.org/issue2669 gregory.p.smith fast builtin sum may leak 22 days http://bugs.python.org/issue2784 rhettinger patch Py30a5: Tk Menu Alt-f behaves differently Linux vs Windows 15 days http://bugs.python.org/issue2806 gpolo sidebar directive fails 10 days http://bugs.python.org/issue2852 georg.brandl Add gestalt back into Python 3.0 15 days http://bugs.python.org/issue2854 benjamin.peterson patch lookkey should INCREF/DECREF startkey around PyObject_RichCompar 15 days http://bugs.python.org/issue2855 rhettinger patch Remove commands for PEP 3108 0 days http://bugs.python.org/issue2872 benjamin.peterson patch Rename the thread module to _thread 11 days http://bugs.python.org/issue2875 brett.cannon Backport UserString move from 3.0 13 days http://bugs.python.org/issue2877 brett.cannon patch Backport UserList move in 3.0 14 days http://bugs.python.org/issue2878 brett.cannon patch Rename _winreg to winreg 9 days http://bugs.python.org/issue2879 georg.brandl Create the dbm package 10 days http://bugs.python.org/issue2881 georg.brandl Create the http package 10 days http://bugs.python.org/issue2883 georg.brandl patch Create the xmlrpc package 10 days http://bugs.python.org/issue2886 georg.brandl urllib not handling ftp servers that do not support REST 9 days http://bugs.python.org/issue2891 gregory.p.smith Add __name__ in globals of generated namedtuple namespace 12 days http://bugs.python.org/issue2903 rhettinger patch Cross-referencing to a method using an alternate title don't wor 6 days http://bugs.python.org/issue2904 georg.brandl tkinter, assorted fixes 11 days http://bugs.python.org/issue2906 georg.brandl patch, patch struct.Struct.unpack to return a namedtuple for easier attribute 5 days http://bugs.python.org/issue2909 rhettinger patch Revert ConfigParser rename in 2.6 5 days http://bugs.python.org/issue2923 georg.brandl patch Revert Queue rename in 2.6 5 days http://bugs.python.org/issue2925 georg.brandl patch Revert SocketServer rename in 2.6 5 days http://bugs.python.org/issue2926 georg.brandl patch Interactive help writes to the python install destination direct 4 days http://bugs.python.org/issue2938 loewis Apache mod_python python-func strftime 5 days http://bugs.python.org/issue2939 gregory.p.smith Building Python fails on SunOS 5 days http://bugs.python.org/issue2940 loewis setuptools: bdist_wininst adds duplicate entry to dist_files 1 days http://bugs.python.org/issue2946 loewis Windows installer doesn't include OpenSSL license and notice 2 days http://bugs.python.org/issue2949 loewis silly readline module problem 1 days http://bugs.python.org/issue2950 gpolo List comprehensions are leaking variables 0 days http://bugs.python.org/issue2952 loewis [PATCH] Make bisect module functions accept an optional comparis 7 days http://bugs.python.org/issue2954 llucax patch Python 2.5 Documentation error in Tutorial section 8.3 0 days http://bugs.python.org/issue2955 georg.brandl recursion limit exceeded when importing .pyc module 2 days http://bugs.python.org/issue2957 amaury.forgeotdarc calling GzipFile close() more than once causes exception 0 days http://bugs.python.org/issue2959 georg.brandl patch Two error messages inconsistent 0 days http://bugs.python.org/issue2961 georg.brandl Goodbye, 'global' statement! 0 days http://bugs.python.org/issue2962 georg.brandl Method cache is broken in Py3 0 days http://bugs.python.org/issue2963 georg.brandl patch instancemethod_descr_get() lacks an INCREF 0 days http://bugs.python.org/issue2964 georg.brandl patch [PATCH] Rename Tkinter to tkinter in test_tcl 0 days http://bugs.python.org/issue2967 georg.brandl patch test_distutils fails on Linux 0 days http://bugs.python.org/issue2970 benjamin.peterson test_subprocess fails on Darwin 0 days http://bugs.python.org/issue2974 benjamin.peterson typo in text of page 80 of Library Reference PDF 0 days http://bugs.python.org/issue2978 benjamin.peterson test_dbm fails on Darwin 1 days http://bugs.python.org/issue2984 brett.cannon xmlrpclib doesn't support 64bit integer replies 3 days http://bugs.python.org/issue2985 georg.brandl patch Invalid cookies crash web applications 1 days http://bugs.python.org/issue2988 georg.brandl type_modified() in typeobject.c should be public 0 days http://bugs.python.org/issue2989 georg.brandl patch type cache updates might run cleanup code in an inconsistent sta 1 days http://bugs.python.org/issue2990 georg.brandl patch Bad behavior in PythonWin 0 days http://bugs.python.org/issue2991 facundobatista Bad behavior in PythonWin 0 days http://bugs.python.org/issue2992 facundobatista Bad behavior in PythonWin 0 days http://bugs.python.org/issue2993 facundobatista Bad behavior in PythonWin 0 days http://bugs.python.org/issue2994 facundobatista UnicodeEncodeError: 'ascii' codec can't encode character 1 days http://bugs.python.org/issue2998 Muallim-i Âli Py30a5: str.replace() tiny doc error 1 days http://bugs.python.org/issue2999 georg.brandl Remove old StringIO docs 0 days http://bugs.python.org/issue3007 georg.brandl patch site enhancements 1152 days http://bugs.python.org/issue1174614 georg.brandl patch Top Issues Most Discussed (10) ______________________________ 8 pprint produces different output in 2.6 and 3.0 14 days open http://bugs.python.org/issue2888 8 Add ctypes calling convention that allows safe access of errno 140 days open http://bugs.python.org/issue1798 7 xmlrpclib doesn't support 64bit integer replies 3 days closed http://bugs.python.org/issue2985 7 Pickle stream for unicode object may contain non-ASCII characte 3 days open http://bugs.python.org/issue2980 7 Backport UserString move from 3.0 13 days closed http://bugs.python.org/issue2877 6 VS8 include dirs grow without bound 4 days open http://bugs.python.org/issue2975 5 ctypes.util.find_library() doesn't consult LD_LIBRARY_PATH 9 days open http://bugs.python.org/issue2936 5 Revert Queue rename in 2.6 5 days closed http://bugs.python.org/issue2925 5 Add memory footprint query 13 days open http://bugs.python.org/issue2898 5 Rename the thread module to _thread 11 days closed http://bugs.python.org/issue2875

1 0