Mailman 3 July 2008 - Python-Dev

Re: [Python-Dev] [Python-3000] commit access request
by Antoine Pitrou July 15, 2008

July 15, 2008

Le mardi 15 juillet 2008 à 13:57 -0700, Brett Cannon a écrit : > I can't give the privileges, Antoine, but I know that an SSH 2 public > key is going to be needed (see the dev FAQ at > http://www.python.org/dev/faq/ if you don't know how to generate one). It's attached. > They will also need to know how you want your first.last name spelled > for your user account. Please make that antoine.pitrou. > Just send that all in a separate email to python-dev and someone who > can add you will get to it at some point (probably soon). Thanks ! Antoine.

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ctypes assertion failure
by Tim Golden July 15, 2008

July 15, 2008

This problem was raised on the comtypes-users list as it prevents comtypes from being imported on Python 2.6 at the moment. http://bugs.python.org/issue3258 I'll try to find the time to step through to code to work out what's going on, but it's inside the innards of ctypes which I've never looked into before. Could someone confirm at a glance whether this should be given a high priority, please? It results in an assertion error in debug mode, a SystemError in non-debug referring to a NULL return without an Exception set. Thanks TJG

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Re: [Python-Dev] urllib.quote and unquote - Unicode issues
by Matt Giuca July 14, 2008

July 14, 2008

On Mon, Jul 14, 2008 at 4:54 AM, André Malo <nd(a)perlig.de> wrote: > > Ahem. The HTTP standard does ;-) > Really? Can you include a quotation please? The HTTP standard talks a lot about ISO-8859-1 (Latin-1) in terms of actually raw encoded bytes, but not in terms of URI percent-encoding (a different issue) as far as I can tell. > > > Where web forms are concerned, basically setting the form accept-charset > > or the page charset is the *maximum amount* of control you have over the > > encoding. As you say, it can be encoded by another page or the user can > > override their settings. Then what can you do as the server? Nothing ... > > Guessing works pretty well in most of the cases. > Are you suggesting that urllib.unquote guess the encoding? It could do that but it would make things rather unpredictable. I think if this was an application (such as a web browser), then guessing is OK. But this is a library function. Library functions should not make arbitrary decisions; they should be well-specified. Latin-1 is not exactly arbitray. Besides being a charset - it maps > one-to-one to octet values, hence it's commonly used to encode octets and > is therefore a better fallback than every other encoding. > True. So the only advantage I see to the current implementation is that if you really want to, you can take the Latin-1-decoded URI (from unquote) and explicitly encode it as Latin-1 and then decode it again as whatever encoding you want. But that would be a hack, would it not? I'd prefer if the library didn't require a hack just to get the extremely common use case (UTF-8). > > > I agree. However if there *was* a proper standard we wouldn't have to > > argue! "Most proper" and "should do" is the most confident we can be when > > dealing with this standard, as there is no correct encoding. > > Well, the standard says, there are octets to be encoded. I find that proper > enough. Yes but unfortunately we aren't talking about octets any more in Python 3, but characters. If we're going to follow the standard and encode octets, then we should be accepting (for quote) and returning (for unquote) bytes objects, not strings. But as that's going to break most existing code and be extremely confusing, I think it's best we try and solve this problem for Unicode strings. > > Does anyone have a suggestion which will be more compatible with the rest > > of the world than allowing the user to select an encoding, and defaulting > > to "utf-8"? > > Default to latin-1 for decoding and utf-8 for encoding. This might be > confusing though, so maybe you've asked the wrong question ;) > :o that would break so so much existing code, not to mention being horribly inconsistent and confusing. Having said that, that's almost what the current behaviour is (quote uses Latin-1 for characters < 256, and UTF-8 for characters above; unquote uses Latin-1). Again I bring up the http server example. If you go to a directory, create a file with a name such as '漢字', and then run this code in Python 3.0 from that directory: import http.server s = http.server.HTTPServer(('',8000), http.server.SimpleHTTPRequestHandler) s.serve_forever() You'll see the file in the directory listing - its HTML will be <a href="%E6%BC%A2%E5%AD%97">漢字</a>. But if you click it, you get a 404 because the server will look for the file named unquote("%E6%BC%A2%E5%AD%97") = 'æ¼¢å\xad\x97'. If you apply my patch (patch5) *everything* *just* *works*. On Mon, Jul 14, 2008 at 6:36 AM, Bill Janssen <janssen(a)parc.com> wrote: > > Ah there may be some confusion here. We're only dealing with str->str > > transformations (which in Python 3 means Unicode strings). You can't put > a > > bytes in or get a bytes out of either of these functions. I suggested a > > "quote_raw" and "unquote_raw" function which would let you do this. > > Ah, well, that's a problem. Clearly the unquote is str->bytes, while > the quote is (bytes OR str)->str. > OK so for quote, you're suggesting that we accept either a bytes or a str object. That sounds quite reasonable (though neither the unpatched or patched versions accept a bytes at the moment). I'd simply change the code in quote (from patch5) to do this: if isinstance(s, str): s = s.encode(encoding, errors) .... res = map(quoter, s) Now you get this behaviour by default (which may appear confusing but I'd argue correct given the different semantics of 'h\xfcllo' and b'h\xfcllo'): >>> urllib.parse.quote(b'h\xfcllo') 'h%FCllo' # Directly-encoded octets >>> urllib.parse.quote('h\xfcllo') 'h%C3%BCllo' # UTF-8 encoded string, then encoded octets Clearly the unquote is str->bytes, <snip> You can't pass a Unicode string > back > as the result of unquote *without* passing in an encoding specifier, > because the character set is application-specific. > So for unquote you're suggesting that it always return a bytes object UNLESS an encoding is specified? As in: >>> urllib.parse.unquote('h%C3%BCllo') b'h\xc3\xbcllo' I would object to that on two grounds. Firstly, I wouldn't expect or desire a bytes object. The vast majority of uses for unquote will be to get a character string out, not bytes. Secondly, there is a mountain of code (including about 12 modules in the standard library) which call unquote and don't give the user the encoding option, so it's best if we pick a default that is what the majority of users will expect. I argue that that's UTF-8. I'd prefer having a separate unquote_raw function which is str->bytes, and the unquote function performs the same role as it always have, which is str->str. But I agree on quote, I think it can be (bytes OR str)->str. Matt

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AMD64-W2k8 buildbot wedged
by Nick Coghlan July 14, 2008

July 14, 2008

The compilation step on this buildbot is failing because it can't delete or overwrite any of the Python DLLs [1]. Is there any way to fix this remotely, or at least to tell why kill_python isn't doing the trick? (Going back a bit further, it looks like test_multiprocessing is the culprit as the original hanging test. The number of 64-bit safeness warnings being emitted by the current trunk is also fairly worrying) Cheers, Nick. [1] http://www.python.org/dev/buildbot/all/AMD64%20W2k8%20trunk/builds/757/step… -- Nick Coghlan | ncoghlan(a)gmail.com | Brisbane, Australia --------------------------------------------------------------- http://www.boredomandlaziness.org

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Assignment to None
by Curt Hagenlocher July 14, 2008

July 14, 2008

My apologies if this is one of those "dead horse" issues. The following seems a little inconsistent to me: >>> c = C() >>> c.None Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: C instance has no attribute 'None' >>> c.None = 'foo' File "<stdin>", line 1 SyntaxError: assignment to None >>> setattr(c, 'None', 'foo') >>> c.None 'foo' >>> So, it's okay to setattr the attribute name "None" but not okay to set it directly? Is this deliberate or is it an unintentional side effect of parser changes to prevent assignment to None? -- Curt Hagenlocher curt(a)hagenlocher.org

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Exception tracebacks
by Tom Mullins July 13, 2008

July 13, 2008

I do not know where cleanup_traceback (in run.py) is called, or really anything about the inner workings of python, but there is a problem with sys.tracebacklimit. If it is set to one or zero, "** IDLE Internal Exception" is printed in the traceback for any exception, not internal ones. I think tracebacklimit is applied to the traceback before cleanup_traceback is called, but should be applied after. I imagine the solution is not that simple, and you may already be aware of the problem, but thanks anyway.

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urllib.quote and unquote - Unicode issues
by Matt Giuca July 13, 2008

July 13, 2008

Hi all, My first post to the list. In fact, first time Python hacker, long-time Python user though. (Melbourne, Australia). Some of you may have seen for the past week or so my bug report on Roundup, http://bugs.python.org/issue3300 I've spent a heap of effort on this patch now so I'd really like to get some more opinions and have this patch considered for Python 3.0. Basically, urllib.quote and unquote seem not to have been updated since Python 2.5, and because of this they implicitly perform Latin-1 encoding and decoding (with respect to percent-encoded characters). I think they should default to UTF-8 for a number of reasons, including that's what other software such as web browsers use. I've submitted a patch which fixes quote and unquote to use UTF-8 by default. I also added extra arguments allowing the caller to choose the encoding (after discussion, there was some consensus that this would be beneficial). I have now completed updating the documentation, writing extensive test cases, and testing the rest of the standard library for code breakage - with the result being there wasn't really any, everything seems to just work nicely with UTF-8. You can read the sordid details of my investigation in the tracker. Firstly, it'd be nice to hear if people think this is desirable behaviour. Secondly, if it's feasible to get this patch in Python 3.0. (I think if it were delayed to Python 3.1, the code breakage wouldn't justify it). And thirdly, if the first two are positive, if anyone would like to review this patch and check it in. I have extensively tested it, and am now pretty confident that it won't cause any grief if it's checked in. Thanks very much, Matt Giuca

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A proposed solution for Issue 502236: Asyncrhonous exceptions between threads
by Andy Scott July 13, 2008

July 13, 2008

[OK so a newbie post here so many apologies if I am doing this wrong] Quick Synopsis: A child thread in an executing Python program can not safely shutdown the program. The issue URL is: http://bugs.python.org/issue502236 So my proposal is: Example: We have three threads - t0 - Main system thread t1 - Worker thread t2 - Worker thread t1 encounters an issue that means it wants to shut down the application in as safe a way as possible A Solution: 1. Put in place a new function call sys.exitapplication, what this would do is: a. Mark a flag in t0's data structure saying a request to shutdown has been made b. Raise a new exception, SystemShuttingDown, in t1. 2. As the main interpreter executes it checks the "shutting down flag" in the per thread data and follows one of two paths: If it is t0: a. Stops execution of the current code sequence b. Iterates over all extant threads setting the "system shutdown" flag in the per thread data structure. Setting this flag is a one time deal - it can not be undone once set. (And to avoid issues with multiple threads setting it - it can only ever be a single fixed value so setting it multiple times results in the same answer) c. Enters a timed wait loop where it will allow the other threads time to see the signal. It will iterate this loop a set number of times to avoid being blocked on any given thread. d. When all threads have exited, or been forcefully closed, raise the SystemShuttingDown exception If it is not t0: a. Stops execution of the current code sequence b. Raises the exception, SystemShuttingDown. There are problems with this approach, as I see it they are (but please see the assumptions I have made): P1. If the thread is in a tight loop will it see the exception? Or more generally: when should the exception be raised? P2. When should the interpreter check this flag? I think the answer to both of these problems is to: Check the flag, and hence raise the exception, in the following circumstances: - When the interpreter executes a back loop. So this should catch the jump back to the top of a "while True:" loop - Just before the interpreter makes a call to a hooked in non-Python system function, e.g. file I/O, networking &c. Checking at these points should be the minimal required, I think, to ensure that a given thread can not ignore the exception. It may be possible, or even required, to perform the check every time a Python function call is made. I think this approach would then allow for the finally handlers to be called. Assumptions: [Here I must admit to a large amount of ignorance of the internals of Python at this time. So if my assumptions are incorrect I would greatly appreciate being told so :-) Preferably as polite as possible and any code pointers while welcome unless they point to some very esoteric and arcane area would be best kept general so I feel more of a spur to go learn the code base] 1. The Python interpreter has per thread information. 2. The Python interpreter can tell if the system, t0, thread is running. 3. The Python engine has (or can easily obtain) a list of all threads it created. 4. It is possible to raise exceptions as the byte code is executing. I am mailing this out as: A. I have no idea if my thoughts are correct or total un-mitigated rubbish :-) B. I believe the introduction of this proposal (if I am correct) will require a PEP being raised, which aiui requires building community support (which is very fair imo) so this is me trying to do so :-) So apologies if this post has been total spam (but no eggs) or too long - give a little whistle and it will all be OK again. Andy --------------------------------------Brain chemistry is not just for Christmas _________________________________________________________________ Play and win great prizes with Live Search and Kung Fu Panda http://clk.atdmt.com/UKM/go/101719966/direct/01/

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Update bz2 library?
by Scott David Daniels July 13, 2008

July 13, 2008

I just noticed that the bz2lib version was updated to 1.0.5 in December of 2007, for security reasons. I suspect it would be good to be sure to ship this with 2.6 or 3.0. --Scott David Daniels Scott.Daniels(a)Acm.Org

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Summary of Python tracker Issues
by Python tracker July 11, 2008

July 11, 2008

ACTIVITY SUMMARY (07/04/08 - 07/11/08) 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. 1967 open (+43) / 13199 closed (+17) / 15166 total (+60) Open issues with patches: 621 Average duration of open issues: 700 days. Median duration of open issues: 1604 days. Open Issues Breakdown open 1939 (+42) pending 28 ( +1) Issues Created Or Reopened (60) _______________________________ Delete obsolete 'Unicode' in Py3 str docstrings; related fixes 07/04/08 CLOSED http://bugs.python.org/issue3284 created tjreedy easy Fraction.from_any() 07/04/08 CLOSED http://bugs.python.org/issue3285 created rhettinger patch IDLE opens window too low on Windows 07/04/08 http://bugs.python.org/issue3286 created tjreedy Fraction constructor should raise TypeError instead of Attribute 07/04/08 CLOSED http://bugs.python.org/issue3287 created rhettinger patch float.as_integer_ratio method is not documented 07/05/08 http://bugs.python.org/issue3288 created marketdickinson unnecessary call to time and localtime slows time.mktime 07/05/08 CLOSED http://bugs.python.org/issue3289 created nother_jnelson python-config --cflags includes irrelevant flags 07/05/08 http://bugs.python.org/issue3290 created sacha rlcompleter doesn't work anymore 07/05/08 CLOSED http://bugs.python.org/issue3291 created pitrou patch Position index limit; s.insert(i,x) not same as s[i:i]=[x] 07/05/08 http://bugs.python.org/issue3292 created tjreedy incorrect comments for PyObject_ReleaseBuffer 07/05/08 http://bugs.python.org/issue3293 created pitrou SVN repository contains an incorrect symbolic link 07/05/08 CLOSED http://bugs.python.org/issue3294 created pitrou PyExc_BufferError is declared but nowhere defined 07/05/08 CLOSED http://bugs.python.org/issue3295 created pitrou patch print function not executed in python 3.0 tutorial 07/05/08 CLOSED http://bugs.python.org/issue3296 created segfaulthunter Python interpreter uses Unicode surrogate pairs only before the 07/06/08 http://bugs.python.org/issue3297 created ezio.melotti Multiline string with quotes is not parsed correctly. 07/06/08 CLOSED http://bugs.python.org/issue3298 created Stavros invalid object destruction in re.finditer() 07/06/08 http://bugs.python.org/issue3299 created haypo patch urllib.quote and unquote - Unicode issues 07/06/08 http://bugs.python.org/issue3300 created mgiuca patch DoS when lo is negative in bisect.insort_right() / _left() 07/06/08 CLOSED http://bugs.python.org/issue3301 created haypo patch segfault on gettext(None) 07/06/08 http://bugs.python.org/issue3302 created haypo patch invalid ref count on locale.strcoll() error 07/06/08 http://bugs.python.org/issue3303 created haypo patch invalid call to PyMem_Free() in fileio_init() 07/06/08 http://bugs.python.org/issue3304 created haypo patch, easy Use Py_XDECREF() instead of Py_DECREF() in MultibyteCodec and Mu 07/06/08 http://bugs.python.org/issue3305 created haypo patch audioop.findmax() crashs with negative length 07/06/08 CLOSED http://bugs.python.org/issue3306 created haypo patch invalid check of _bsddb creation failure 07/06/08 http://bugs.python.org/issue3307 created haypo patch MinGW built extensions do not load (specified procedure cannot b 07/07/08 CLOSED http://bugs.python.org/issue3308 created rogerbinns missing lock release in BZ2File_iternext() 07/07/08 http://bugs.python.org/issue3309 created haypo patch, easy Out-of-date example 3.0b1 Tutorial Classes page, 'issubclass' 07/07/08 http://bugs.python.org/issue3310 created alexis.layton block operation on closed socket/pipe for multiprocessing 07/07/08 http://bugs.python.org/issue3311 created haypo patch bugs in _sqlite module 07/07/08 http://bugs.python.org/issue3312 created haypo patch dlopen() error with no error message from dlerror() 07/07/08 http://bugs.python.org/issue3313 created haypo patch urllib.parse doesn't import sys 07/07/08 CLOSED http://bugs.python.org/issue3314 created mgiuca patch abc.rst little error 07/07/08 CLOSED http://bugs.python.org/issue3315 created mishok13 patch Proposal for fix_urllib 07/07/08 http://bugs.python.org/issue3316 created nedds patch duplicate lines in zipfile.py 07/07/08 http://bugs.python.org/issue3317 created amaury.forgeotdarc patch Documentation: timeit: "lower bound" should read "upper bound" 07/08/08 http://bugs.python.org/issue3318 created unutbu pystone.main(10) causes ZeroDivisionError 07/08/08 http://bugs.python.org/issue3319 created mokeefe patch various doc typos 07/08/08 http://bugs.python.org/issue3320 created dsm001 patch _multiprocessing.Connection() doesn't check handle 07/08/08 http://bugs.python.org/issue3321 created haypo patch bugs in scanstring_str() and scanstring_unicode() of _json modul 07/08/08 http://bugs.python.org/issue3322 created haypo Clarify __slots__ behaviour when inheriting 07/09/08 http://bugs.python.org/issue3323 created strangefeatures Broken link in online doc 07/09/08 http://bugs.python.org/issue3324 created ThomasH use of cPickle in multiprocessing 07/09/08 http://bugs.python.org/issue3325 created mishok13 patch py3k shouldn't use -fno-strict-aliasing anymore 07/09/08 http://bugs.python.org/issue3326 created cartman patch NULL member in modules_by_index 07/09/08 http://bugs.python.org/issue3327 created krisvale When PyObject_CallMethod fails, refcount is incorrect 07/09/08 http://bugs.python.org/issue3328 created dominic.lavoie API for setting the memory allocator used by Python 07/09/08 http://bugs.python.org/issue3329 created jlaurila webbrowser module doesn't correctly handle '|' character. 07/09/08 http://bugs.python.org/issue3330 created AdrianP Possible inconsistency in behavior of list comprehensions vs. ge 07/10/08 http://bugs.python.org/issue3331 created carlj DocTest and dict sort. 07/10/08 CLOSED http://bugs.python.org/issue3332 created jedie Need -3 warning for exec statement becoming a function 07/10/08 CLOSED http://bugs.python.org/issue3333 created rhettinger 2to3 looses indentation on import fix 07/10/08 http://bugs.python.org/issue3334 created ctheune subprocess lib - opening same command fails 07/10/08 http://bugs.python.org/issue3335 created gtg944q datetime weekday() function 07/10/08 http://bugs.python.org/issue3336 created ryanboesch Fixer for dbm is failing 07/11/08 CLOSED http://bugs.python.org/issue3337 created brett.cannon cPickle segfault with deep recursion 07/11/08 http://bugs.python.org/issue3338 created esrever_otua dummy_thread LockType.acquire() always returns None, should be T 07/11/08 http://bugs.python.org/issue3339 created toymachine patch optparse print_usage(),.. methods are not documented 07/11/08 http://bugs.python.org/issue3340 created techtonik "Suggest a change" link 07/11/08 http://bugs.python.org/issue3341 created techtonik Tracebacks are not properly indented 07/11/08 http://bugs.python.org/issue3342 created amaury.forgeotdarc patch Py_DisplaySourceLine is not documented 07/11/08 http://bugs.python.org/issue3343 created amaury.forgeotdarc Issues Now Closed (36) ______________________ async_chat.__init__() parameters 221 days http://bugs.python.org/issue1519 josiahcarlson Error when printing an exception containing a Unicode string 99 days http://bugs.python.org/issue2517 ncoghlan patch performance problem in socket._fileobject.read 82 days http://bugs.python.org/issue2632 gregory.p.smith patch shutil.copytree glob-style filtering [patch] 76 days http://bugs.python.org/issue2663 georg.brandl patch "Report bug" links 61 days http://bugs.python.org/issue2823 techtonik cleanup of freelist management 52 days http://bugs.python.org/issue2862 gregory.p.smith patch, patch By default, HTTPSConnection should send header "Host: somehost" 24 days http://bugs.python.org/issue3094 gregory.p.smith patch, easy glob.py improvements 20 days http://bugs.python.org/issue3159 facundobatista patch cmath test fails on Solaris 10 14 days http://bugs.python.org/issue3168 MrJean1 patch sha modules & Modules/Setup.dist 13 days http://bugs.python.org/issue3183 gregory.p.smith float('infinity') should be valid 11 days http://bugs.python.org/issue3188 marketdickinson patch Improve subprocess module usage 6 days http://bugs.python.org/issue3235 georg.brandl curses/textpad.py incorrectly and redundantly imports ascii 5 days http://bugs.python.org/issue3239 facundobatista patch socket's OOB data management is broken on OS X and FreeBSD 3 days http://bugs.python.org/issue3277 gregory.p.smith socket's SO_OOBINLINE option does not work 3 days http://bugs.python.org/issue3278 gregory.p.smith %c format does not accept large numbers on ucs-2 builds 1 days http://bugs.python.org/issue3280 amaury.forgeotdarc Delete obsolete 'Unicode' in Py3 str docstrings; related fixes 0 days http://bugs.python.org/issue3284 benjamin.peterson easy Fraction.from_any() 6 days http://bugs.python.org/issue3285 rhettinger patch Fraction constructor should raise TypeError instead of Attribute 6 days http://bugs.python.org/issue3287 rhettinger patch unnecessary call to time and localtime slows time.mktime 0 days http://bugs.python.org/issue3289 facundobatista rlcompleter doesn't work anymore 0 days http://bugs.python.org/issue3291 benjamin.peterson patch SVN repository contains an incorrect symbolic link 0 days http://bugs.python.org/issue3294 benjamin.peterson PyExc_BufferError is declared but nowhere defined 0 days http://bugs.python.org/issue3295 benjamin.peterson patch print function not executed in python 3.0 tutorial 0 days http://bugs.python.org/issue3296 benjamin.peterson Multiline string with quotes is not parsed correctly. 0 days http://bugs.python.org/issue3298 Stavros DoS when lo is negative in bisect.insort_right() / _left() 4 days http://bugs.python.org/issue3301 rhettinger patch audioop.findmax() crashs with negative length 1 days http://bugs.python.org/issue3306 facundobatista patch MinGW built extensions do not load (specified procedure cannot b 1 days http://bugs.python.org/issue3308 loewis urllib.parse doesn't import sys 0 days http://bugs.python.org/issue3314 facundobatista patch abc.rst little error 0 days http://bugs.python.org/issue3315 benjamin.peterson patch DocTest and dict sort. 0 days http://bugs.python.org/issue3332 rhettinger Need -3 warning for exec statement becoming a function 1 days http://bugs.python.org/issue3333 rhettinger Fixer for dbm is failing 0 days http://bugs.python.org/issue3337 brett.cannon asyncore.py and "handle_error" 1839 days http://bugs.python.org/issue760475 josiahcarlson asyncore misses socket closes when poll is used 1515 days http://bugs.python.org/issue953599 josiahcarlson asyncore should handle also ECONNABORTED in recv 390 days http://bugs.python.org/issue1736101 josiahcarlson patch Top Issues Most Discussed (10) ______________________________ 14 threading module can deadlock after fork 1643 days open http://bugs.python.org/issue874900 11 MinGW built extensions do not load (specified procedure cannot 1 days closed http://bugs.python.org/issue3308 10 urllib.quote and unquote - Unicode issues 5 days open http://bugs.python.org/issue3300 9 Crash in PyObject_Malloc 356 days open http://bugs.python.org/issue1758146 8 urllib2 header capitalization 122 days open http://bugs.python.org/issue2275 7 bytearrays are not thread safe 22 days open http://bugs.python.org/issue3139 7 test_multiprocessing hangs intermittently on POSIX platforms 9 days open http://bugs.python.org/issue3088 6 API for setting the memory allocator used by Python 2 days open http://bugs.python.org/issue3329 6 duplicate lines in zipfile.py 4 days open http://bugs.python.org/issue3317 6 Let bin/oct/hex show floats 17 days open http://bugs.python.org/issue3008

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