docs January 2011

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25 participants
223 discussions

[issue8722] Documentation for __getattr__

by Paul Davis

New submission from Paul Davis <paul.joseph.davis(a)gmail.com>: The docs for __getattr__ in the object model section could be more specific on the behavior when a @property raises an AttributeError and there is a custom __getattr__ defined. Specifically, it wasn't exactly clear that __getattr__ would be invoked after a @property was found and evaluated. The attached script demonstrates the issue on OS X 10.6, Python 2.6.1 I'm thinking something along the lines of: If the attribute search encounters an AttributeError (perhaps due to a @property raising the error) the search is considered a failure and __getattr__ is invoked. ---------- assignee: docs@python components: Documentation files: example.py messages: 105790 nosy: Paul.Davis, docs@python priority: normal severity: normal status: open title: Documentation for __getattr__ type: feature request versions: Python 2.6 Added file: http://bugs.python.org/file17349/example.py _______________________________________ Python tracker <report(a)bugs.python.org> <http://bugs.python.org/issue8722> _______________________________________

3 years, 8 months

[issue11023] pep 227 missing text

by Alan Isaac

New submission from Alan Isaac <alan.isaac(a)gmail.com>: In PEP 227 missing text is marked with XXX. Most of this is just calls for examples and elaboration. However under the Implementation section XXX marks a substantive question about the documentation. Fixing this may be low priority, but a tracker search suggested it is currently not even being tracked ... ---------- assignee: docs@python components: Documentation messages: 127184 nosy: aisaac, docs@python priority: normal severity: normal status: open title: pep 227 missing text type: feature request _______________________________________ Python tracker <report(a)bugs.python.org> <http://bugs.python.org/issue11023> _______________________________________

3 years, 9 months

[issue10438] list an example for calling static methods from WITHIN classes

by Ian

New submission from Ian <ifreecarve(a)gmail.com>: Concerning this section of the docs: http://docs.python.org/library/functions.html#staticmethod There is no example for calling a static method from another static method within the same class. As I discovered later, it's simple: C.f() -- from inside the class or outside it. A total newbie will accept this and move on... but in other programming languages, it's frowned upon to the class name from within the class. For example, in PHP you use the "self::" prefix and Java you don't need a prefix at all. So, even though I had it right the first time, it didn't SEEM right... so I went on a wild goose chase, for nothing. Googling "java call static method" will get you java documentation that lists both cases, as does "c++ call static method" and "php call static method". I feel that by adding "Note: you must also use the C.f() syntax when calling from within the class", the documentation will be more complete. ---------- assignee: docs@python components: Documentation messages: 121314 nosy: docs@python, ifreecarve priority: normal severity: normal status: open title: list an example for calling static methods from WITHIN classes type: feature request _______________________________________ Python tracker <report(a)bugs.python.org> <http://bugs.python.org/issue10438> _______________________________________

4 years, 3 months

[issue10938] Undocumented option for datetime.strftime: %s

by Humberto Diogenes

New submission from Humberto Diogenes <humberto(a)digi.com.br>: On some systems, datetime.strftime() accepts a %s format string that returns epoch / UNIX timestamp, but this behavior is not documented at http://docs.python.org/library/datetime.html Python 2.7 (r27:82508, Jul 3 2010, 21:12:11) [GCC 4.0.1 (Apple Inc. build 5493)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> import datetime >>> datetime.datetime.now().strftime('%s') '1295376929' ---------- assignee: docs@python components: Documentation messages: 126481 nosy: docs@python, hdiogenes priority: normal severity: normal status: open title: Undocumented option for datetime.strftime: %s versions: Python 2.7 _______________________________________ Python tracker <report(a)bugs.python.org> <http://bugs.python.org/issue10938> _______________________________________

4 years, 8 months

[issue10415] readline.insert_text documentation incomplete

by Justin Lebar

New submission from Justin Lebar <justin.lebar(a)gmail.com>: The readline documentation currently says: > readline.insert_text(string) > Insert text into the command line. But as far as I can tell, readline.insert_text() does something only when called from startup_hook or pre_input_hook. Here's an example of someone using the module in a way that works: http://swapoff.org/svn/cly/tags/0.7/cly/interactive.py ---------- assignee: docs@python components: Documentation messages: 121178 nosy: Justin.Lebar, docs@python priority: normal severity: normal status: open title: readline.insert_text documentation incomplete versions: Python 3.1 _______________________________________ Python tracker <report(a)bugs.python.org> <http://bugs.python.org/issue10415> _______________________________________

5 years

[issue9911] doc copyedits

by DSM

New submission from DSM <dsm001(a)users.sourceforge.net>: Various typo fixes for the docs. As usual, I left historical documents alone (except for 3.1 whatsnew: fixed the spelling of Jack Diederich's name). Fixing ~30 means I probably introduced ~3 problems of my own, but that should still be a net win.. Patch against py3k r84944. ---------- assignee: docs@python components: Documentation files: typos.patch keywords: patch messages: 117052 nosy: docs@python, dsm001 priority: normal severity: normal status: open title: doc copyedits versions: Python 3.3 Added file: http://bugs.python.org/file18947/typos.patch _______________________________________ Python tracker <report(a)bugs.python.org> <http://bugs.python.org/issue9911> _______________________________________

5 years, 5 months

[issue9014] Incorrect documentation of the PyObject_HEAD macro

by Renato Cunha

New submission from Renato Cunha <renato(a)renatocunha.com>: PyObject_HEAD's documentation in py3k (http://docs.python.org/dev/py3k/c-api/structures.html#PyObject_HEAD) uses the same content used in the python 2.x's docs which is wrong, as there were some API changes. PyObject_HEAD is actually defined as #define PyObject_HEAD PyObject ob_base; with PyObject defined as typedef struct _object { _PyObject_HEAD_EXTRA Py_ssize_t ob_refcnt; struct _typeobject *ob_type; } PyObject; (The PyTRACE_REFS discussion is still valid, though.) Additionally, it'd be nice to mention that the Py_REFCNT(ob) and Py_TYPE(ob) macros should be used to access the PyObject members. ---------- assignee: docs@python components: Documentation messages: 107953 nosy: docs@python, trovao priority: normal severity: normal status: open title: Incorrect documentation of the PyObject_HEAD macro type: behavior versions: Python 3.1, Python 3.2, Python 3.3 _______________________________________ Python tracker <report(a)bugs.python.org> <http://bugs.python.org/issue9014> _______________________________________

5 years, 6 months

[issue10289] Document magic methods called by built-in functions

by Éric Araujo

New submission from Éric Araujo <merwok(a)netwok.org>: At the top of Doc/library/functions.rst, which documents built-in functions like abs, getattr or hash, a comment reads “document all delegations to __special__ methods”. Some functions are already good: enumerate for instance does link to the definition of iterator and hints about the __next__ method, format points to __format__, etc. They can serve as example for how to add links (in plain text and in the global index). ---------- assignee: docs@python components: Documentation messages: 120189 nosy: docs@python, eric.araujo priority: normal severity: normal stage: needs patch status: open title: Document magic methods called by built-in functions versions: Python 2.7, Python 3.1, Python 3.2 _______________________________________ Python tracker <report(a)bugs.python.org> <http://bugs.python.org/issue10289> _______________________________________

5 years, 6 months

[issue8810] TZ offset description is unclear in docs

by Alexander Belopolsky

New submission from Alexander Belopolsky <belopolsky(a)users.sourceforge.net>: >From <http://docs.python.org/dev/py3k/library/datetime.html#datetime.tzinfo.utcof…>: """ tzinfo.utcoffset(self, dt) Return offset of local time from UTC, in minutes east of UTC. """ This suggests that the return value is an integer representing the number of minutes. It is later explained that in fact "the value returned must be a timedelta object specifying a whole number of minutes", but many users won't read past the first sentence. I suggest s/in minutes east of UTC/as a timedelta object/. I think "east of UTC" is redundant given the next sentence, "If local time is west of UTC, this should be negative", but that can also be reworded for clarity as "The offset for timezones west of UTC is negative, and for those east of UTC is positive." ---------- assignee: docs@python components: Documentation keywords: easy messages: 106371 nosy: belopolsky, docs@python priority: normal severity: normal status: open title: TZ offset description is unclear in docs versions: Python 2.7, Python 3.2 _______________________________________ Python tracker <report(a)bugs.python.org> <http://bugs.python.org/issue8810> _______________________________________

5 years, 8 months

[issue10942] xml.etree.ElementTree.tostring returns type bytes, expected type str

by J_Tom_Moon_79

New submission from J_Tom_Moon_79 <jtm.moon.forum.user+python(a)gmail.com>: method xml.etree.ElementTree.tostring from module returns type bytes. The documentation reads """Returns an encoded string containing the XML data.""" (from http://docs.python.org/py3k/library/xml.etree.elementtree.html#xml.etree.El… as of 2011-01-18) ======================================================= Here is a test program: ------------------------------------------------------- #!/usr/bin/python # created for python 3.1 import sys print(sys.version) # for help verifying version tested from xml.etree import ElementTree sampleinput = """<?xml version="1.0"?><Hello></Hello>""" xmlobj = ElementTree.fromstring(sampleinput) type(xmlobj) xmlstr = ElementTree.tostring(xmlobj,'utf-8') print("xmlstr value is '", xmlstr, "'", sep="") print("xmlstr type is '", type(xmlstr), "'", sep="") ------------------------------------------------------- test program output: ------------------------------------------------------- 3.1.3 (r313:86834, Nov 27 2010, 18:30:53) [MSC v.1500 32 bit (Intel)] xmlstr value is 'b'<Hello />'' xmlstr type is '<class 'bytes'>' ======================================================= This cheap "fix" for this bug may be simply be a change in documentation. However, a method called "tostring" really should return something nearer to the built-in str. ---------- assignee: docs@python components: Documentation, XML messages: 126506 nosy: JTMoon79, docs@python priority: normal severity: normal status: open title: xml.etree.ElementTree.tostring returns type bytes, expected type str type: behavior versions: Python 3.1 _______________________________________ Python tracker <report(a)bugs.python.org> <http://bugs.python.org/issue10942> _______________________________________

5 years, 11 months

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docs January 2011