Mailman 3 September 2013 - docs

[issue17777] Unrecognized string literal escape sequences give SyntaxErrors
by Reynir Reynisson 24 Sep '13

24 Sep '13

New submission from Reynir Reynisson: Strings like "\u" trigger a SyntaxError. According to the language reference "all unrecognized escape sequences are left in the string unchanged"[0]. The string "\u" clearly doesn't match any of the escape sequences (in particular \uxxxx). This may be intentional, but it is not clear from the language reference that this is the case. If it is intentional it should probably be stated more explicit in the language reference. I think this may be confusing for new users since the syntax errors may lead them to believe the interpreter will give syntax error for all unrecognized escape sequences. [0]: http://docs.python.org/3/reference/lexical_analysis.html#literals ---------- assignee: docs@python components: Documentation, Unicode messages: 187173 nosy: docs@python, ezio.melotti, reynir priority: normal severity: normal status: open title: Unrecognized string literal escape sequences give SyntaxErrors type: behavior versions: Python 3.3 _______________________________________ Python tracker <report(a)bugs.python.org> <http://bugs.python.org/issue17777> _______________________________________

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[issue19047] Clarify weakref.finalize objects are kept alive automatically
by Nick Coghlan 22 Sep '13

22 Sep '13

New submission from Nick Coghlan: I was just looking at weakref.finalize objects trying to figure out if they solve a problem I'm thinking about (they do), and I couldn't figure out from the class documentation ([1]) whether or not I needed to take care of keeping the object returned from weakref.finalize alive. I don't (the module keeps finalizers alive automatically), but this critical piece of information is only mentioned in the example much further down in the documentation ([2]). [1] http://docs.python.org/dev/library/weakref#weakref.finalize [2] http://docs.python.org/dev/library/weakref#finalizer-objects The 3.4 What's New should also explicitly mention weakref.finalize as an alternative to __del__ methods (perhaps as a comment in the section on PEP 422, perhaps just in the weakref section) ---------- assignee: docs@python components: Documentation messages: 198046 nosy: docs@python, ncoghlan priority: normal severity: normal stage: needs patch status: open title: Clarify weakref.finalize objects are kept alive automatically type: enhancement versions: Python 3.4 _______________________________________ Python tracker <report(a)bugs.python.org> <http://bugs.python.org/issue19047> _______________________________________

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[issue18553] os.isatty() is not Unix only
by Senthil Kumaran 22 Sep '13

22 Sep '13

Senthil Kumaran added the comment: Hello Dmi, > I having a snippet to fix that, should I open a new issue for patch? Please open a new issue. Thanks! ---------- _______________________________________ Python tracker <report(a)bugs.python.org> <http://bugs.python.org/issue18553> _______________________________________

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[issue19061] Shelve documentation security warning is not visible
by anatoly techtonik 22 Sep '13

22 Sep '13

New submission from anatoly techtonik: This is a follow up to issue #8855. Currently the security warning is completely invisible from Python 2 docs http://docs.python.org/2/library/shelve.html and is located under screen border on Python 3 docs. The proposal is to move warning out of the description of open() function to paragraph following module description, the same way is it is done for pickle http://docs.python.org/3.3/library/pickle.html ---------- assignee: docs@python components: Documentation messages: 198194 nosy: docs@python, techtonik priority: normal severity: normal status: open title: Shelve documentation security warning is not visible versions: Python 2.6, Python 2.7, Python 3.1, Python 3.2, Python 3.3, Python 3.4, Python 3.5 _______________________________________ Python tracker <report(a)bugs.python.org> <http://bugs.python.org/issue19061> _______________________________________

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[issue19043] Remove detailed listing of all versions from LICENSE, Doc/license.rst
by Georg Brandl 22 Sep '13

22 Sep '13

New submission from Georg Brandl: As discussed on python-dev. ---------- assignee: docs@python components: Documentation files: license_fixup_33.patch keywords: patch messages: 198036 nosy: docs@python, georg.brandl priority: normal severity: normal status: open title: Remove detailed listing of all versions from LICENSE, Doc/license.rst versions: Python 2.7, Python 3.3, Python 3.4 Added file: http://bugs.python.org/file31810/license_fixup_33.patch _______________________________________ Python tracker <report(a)bugs.python.org> <http://bugs.python.org/issue19043> _______________________________________

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[issue19054] Descriptors howto
by Marco Buttu 21 Sep '13

21 Sep '13

New submission from Marco Buttu: I think in the descriptor howto, at this point: >>> class MyClass(object): x = RevealAccess(10, 'var "x"') y = 5 or the prompt should not have been, or there is a wrong indentation. Furthermore, in Python 3: http://docs.python.org/3/howto/descriptor.html we can remove the explicit derivation from `object` ---------- assignee: docs@python components: Documentation messages: 198096 nosy: docs@python, marco.buttu priority: normal severity: normal status: open title: Descriptors howto type: enhancement versions: Python 2.6, Python 2.7, Python 3.1, Python 3.2, Python 3.3, Python 3.4 _______________________________________ Python tracker <report(a)bugs.python.org> <http://bugs.python.org/issue19054> _______________________________________

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[issue10976] json.loads() raises TypeError on bytes object
by Josh Lee 20 Sep '13

20 Sep '13

Changes by Josh Lee <jleedev(a)gmail.com>: ---------- nosy: +jleedev _______________________________________ Python tracker <report(a)bugs.python.org> <http://bugs.python.org/issue10976> _______________________________________

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Documentation Error
by Joris Garonian 20 Sep '13

20 Sep '13

Hello, I'm reading the documentation. There is a problem in this part: http://docs.python.org/3/tutorial/introduction.html#strings Code: print("""\Usage: thingy [OPTIONS] -h Display this usage message -H hostname Hostname to connect to \""") The following output (note that the initial and final newlines are not included): Usage: thingy [OPTIONS] -h Display this usage message -H hostname Hostname to connect to As it has been written in the documention, it should have a new line at the bottom. Joris Garonian

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IDLE error
by Sergi Puig Villaplana 20 Sep '13

20 Sep '13

Hello! I recently installed Python 2.7.5 on my Windows 7 (64 bits), and I've been having problems with the IDLE, which keeps giving me an error message every time I try to run it. Here's what it says: "IDLE's subprocess didn't make connection. Either IDLE can't start a subprocess or personal firewall software is blocking the connection.". I uninstalled and reinstalled Python, I tried both versions offered on your website for Windows, none worked. What's the problem and how can I solve it? Thanks a lot in advance!

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[issue18553] os.isatty() is not Unix only
by Dmi Baranov 19 Sep '13

19 Sep '13

Dmi Baranov added the comment: I found a little difference in isatty implementaions: Windows Determines whether a file descriptor is associated with a character device [1] Unix Test whether a file descriptor refers to a terminal [2] So, we having a same behavior for pipes, but different for I/O redirection with pseudo-character devices: $ ./python -c "import os;print(os.isatty(0))" < /dev/null False e:\PCbuild>python_d.exe -c "import os;print(os.isatty(0))" < NUL True Other pseudo devices works simular: e:\PCbuild>python_d.exe -c "import os;print(os.isatty(0))" < CON True I having a snippet to fix that, should I open a new issue for patch? [1] http://msdn.microsoft.com/en-us/library/f4s0ddew.aspx [2] http://man7.org/linux/man-pages/man3/isatty.3.html ---------- _______________________________________ Python tracker <report(a)bugs.python.org> <http://bugs.python.org/issue18553> _______________________________________

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