Mailman 3 May 2020 - docs

[issue34431] Docs does not eval allows code object as argument
by Jonathan Fine 17 May '20

17 May '20

New submission from Jonathan Fine <jfine2358(a)gmail.com>: See https://docs.python.org/3.6/library/functions.html#eval This says the following won't happen. But it does. Python 3.6.2 (default, Jul 29 2017, 00:00:00) [GCC 4.8.4] on linux Type "help", "copyright", "credits" or "license" for more information. >>> def fn(): print(3); return 4 ... >>> eval(fn.__code__) 3 4 Compare with https://docs.python.org/3.6/library/functions.html#exec Search for eval in title of open issues bring up related #22057 (The doc say all globals are copied on eval(), but only __builtins__ is copied) #25810 (Python 3 documentation for eval is incorrect) ---------- assignee: docs@python components: Documentation messages: 323716 nosy: docs@python, jfine2358 priority: normal severity: normal status: open title: Docs does not eval allows code object as argument versions: Python 2.7, Python 3.4, Python 3.5, Python 3.6, Python 3.7, Python 3.8 _______________________________________ Python tracker <report(a)bugs.python.org> <https://bugs.python.org/issue34431> _______________________________________

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[issue40664] Documentation error: itertools.dropwhile(is_even, itertools.count()) output
by Nicolas Gimenez 17 May '20

17 May '20

New submission from Nicolas Gimenez <n.gimenez66(a)gmail.com>: On this page: https://docs.python.org/3/howto/functional.html The example: "itertools.dropwhile(is_even, itertools.count()) => 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, ..." is wrong. It should be: "itertools.dropwhile(is_even, itertools.count()) => 1, 3, 5, 7, 9, ..." ---------- assignee: docs@python components: Documentation messages: 369146 nosy: docs@python, nicobao priority: normal severity: normal status: open title: Documentation error: itertools.dropwhile(is_even, itertools.count()) output versions: Python 3.8 _______________________________________ Python tracker <report(a)bugs.python.org> <https://bugs.python.org/issue40664> _______________________________________

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[issue18262] ZipInfo.external_attr are not documented
by anatoly techtonik 17 May '20

17 May '20

New submission from anatoly techtonik: zipfile doesn't restore file attributes when extracting. Documentation should at least contain example how to do this manually, because the ony way to do this - through ZipInfo.external_attr is too cryptic. ---------- assignee: docs@python components: Documentation messages: 191447 nosy: docs@python, techtonik priority: normal severity: normal status: open title: ZipInfo.external_attr are not documented 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/issue18262> _______________________________________

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[issue40211] Clarify preadv and pwritev is supported AIX 7.1 and newer.
by Batuhan Taskaya 16 May '20

16 May '20

New submission from Batuhan Taskaya <batuhanosmantaskaya(a)gmail.com>: preadv and pwritev are supported on AIX 7.1 and newer, it would be good to clarify this in the documentation. ---------- assignee: docs@python components: Documentation messages: 365880 nosy: BTaskaya, docs@python, pablogsal priority: normal severity: normal status: open title: Clarify preadv and pwritev is supported AIX 7.1 and newer. versions: Python 3.7, Python 3.8, Python 3.9 _______________________________________ Python tracker <report(a)bugs.python.org> <https://bugs.python.org/issue40211> _______________________________________

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[issue40445] compileall.compile_dir docs aren't updated for bpo-38112
by Shantanu 16 May '20

16 May '20

New submission from Shantanu <hauntsaninja(a)gmail.com>: While the signature was updated in the documentation, the text below wasn't, and still reflects the old default of 10. https://docs.python.org/3.9/library/compileall.html#compileall.compile_dir ---------- assignee: docs@python components: Documentation messages: 367714 nosy: docs@python, hauntsaninja priority: normal severity: normal status: open title: compileall.compile_dir docs aren't updated for bpo-38112 versions: Python 3.9 _______________________________________ Python tracker <report(a)bugs.python.org> <https://bugs.python.org/issue40445> _______________________________________

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[issue40641] Reserved word pair used in lambda tutorial without being noted as a reserved word
by Chas Belov 16 May '20

16 May '20

New submission from Chas Belov <docorbit(a)sonic.net>: In the tutorial for lambda expressions at https://docs.python.org/3.7/tutorial/controlflow.html#lambda-expressions the reserved word pair is introduced without noting that it is a reserved word. In the example given, I wasn't sure whether pair was a reserved word or whether the interpreter was parsing the plural "pairs" which is presumable an arbitrary name. Actual content: The above example uses a lambda expression to return a function. Another use is to pass a small function as an argument: >>> pairs = [(1, 'one'), (2, 'two'), (3, 'three'), (4, 'four')] >>> pairs.sort(key=lambda pair: pair[1]) >>> pairs [(4, 'four'), (1, 'one'), (3, 'three'), (2, 'two')] Candidate expected content: The above example uses a lambda expression to return a function. Another use is to pass a small function as an argument, for example, the reserved word pair to designate the position in a tuple pair: >>> items = [(1, 'one'), (2, 'two'), (3, 'three'), (4, 'four')] >>> items.sort(key=lambda pair: pair[1]) >>> items [(4, 'four'), (1, 'one'), (3, 'three'), (2, 'two')] ---------- assignee: docs@python components: Documentation messages: 369017 nosy: docorbit(a)sonic.net, docs@python priority: normal severity: normal status: open title: Reserved word pair used in lambda tutorial without being noted as a reserved word versions: Python 3.7 _______________________________________ Python tracker <report(a)bugs.python.org> <https://bugs.python.org/issue40641> _______________________________________

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[issue40620] Range tutorial shorthand could be made clearer
by Terry J. Reedy 16 May '20

16 May '20

Terry J. Reedy <tjreedy(a)udel.edu> added the comment: This block is the same in 3.9 and 3.8. My first though is this block is a holdover from 2.7, where range returned list. But looking at what is written previously, I think your interpretation is correct -- and agree that something other that code and corresponding output in a code block is confusing. So this might better be a list than a code block. Cheryl, do you have an idea of what might be better? ---------- assignee: -> docs@python components: +Documentation nosy: +cheryl.sabella, docs@python, terry.reedy stage: -> needs patch type: -> behavior versions: +Python 3.8, Python 3.9 _______________________________________ Python tracker <report(a)bugs.python.org> <https://bugs.python.org/issue40620> _______________________________________

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[issue40635] Documentation for socket.getfqdn incorrect?
by Chris Herdt 16 May '20

16 May '20

New submission from Chris Herdt <cherdt(a)gmail.com>: The documentation for socket.getfqdn() includes this info: "In case no fully qualified domain name is available, the hostname as returned by gethostname() is returned." However, that does not appear to be correct. To reproduce a case that exhibits contrary behavior: >>> import socket >>> socket.getfqdn("test") 'test' >>> socket.gethostname() 'centos7minimal.osric.net' ---------- assignee: docs@python components: Documentation messages: 368960 nosy: cherdt, docs@python priority: normal severity: normal status: open title: Documentation for socket.getfqdn incorrect? versions: Python 3.6 _______________________________________ Python tracker <report(a)bugs.python.org> <https://bugs.python.org/issue40635> _______________________________________

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Bug related to tkinter module and destroy function
by Tarun Garg 15 May '20

15 May '20

Hi Team, This bug is related to module = Tkinter , method = destroy(). Considering I am able to open below window and Project Deliver List is a button. When we press this button, below pop-up appears with which I am able to save my file. Now, when we use below code for the first window: root = Tk() root.after(3000, lambda: root.destroy()) If I am using this code on Mac OS, then on clicking on button ‘root.destroy()‘ command hold as it should. But on Windows OS, while I am saving the file, ‘root.destroy()’ destroy the pop-up. Please look into this as I have to deliver this to client. Thanks, Tarun Garg

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[issue38872] Document exec symbol for codeop.compile_command
by Cheryl Sabella 15 May '20

15 May '20

New submission from Cheryl Sabella <cheryl.sabella(a)gmail.com>: codeop.compile_command accepts 'exec' as a symbol, but it is not documented. Opening this bug report for an issue initially reported in PR3179. ---------- assignee: docs@python components: Documentation messages: 357118 nosy: cheryl.sabella, docs@python priority: normal severity: normal status: open title: Document exec symbol for codeop.compile_command type: enhancement versions: Python 3.7, Python 3.8, Python 3.9 _______________________________________ Python tracker <report(a)bugs.python.org> <https://bugs.python.org/issue38872> _______________________________________

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