Mailman 3 July 2017 - docs

[issue26582] asyncio documentation links to wrong CancelledError
by awilfox Dec. 4, 2020

Dec. 4, 2020

New submission from awilfox: In the 3.5 and 3.6a0 documentation for asyncio, "CancelledError" is linked to the concurrent.futures.CancelledError. This led me to try catching that exception and finding that it did not work correctly at all. Only after searching for asyncio example code and seeing how other people caught asyncio.CancelledError did I realise the issue. The fact asyncio.CancelledError even exists isn't actually documented, and I believe that is why the :exc: reference is … [View More]

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[issue15104] abusive language in __name__ description
by anatoly techtonik Dec. 1, 2020

Dec. 1, 2020

New submission from anatoly techtonik <techtonik(a)gmail.com>: http://docs.python.org/library/__main__.html "It is this environment in which the idiomatic “conditional script” stanza causes a script to run" ?!? ---------- assignee: docs@python components: Documentation messages: 163140 nosy: docs@python, techtonik priority: normal severity: normal status: open title: abusive language in __name__ description _______________________________________ Python tracker <report(a)bugs.… [View More]

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[issue21195] None float format: incomplete documentation
by Eric O. LEBIGOT Dec. 1, 2020

Dec. 1, 2020

New submission from Eric O. LEBIGOT: The documentation for a None (empty) format for floats indicates that it is equivalent to the g format. This does not appear to be correct (http://stackoverflow.com/questions/16525924/precise-definition-of-float-str…). The Python 3.4 documentation (https://docs.python.org/3.4/library/string.html#format-specification-mini-l…) seems to be much closer to what Python 2.7 does. It would be useful to have a more correct documentation for the effect of … [View More]

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[issue13341] Incorrect documentation for "u" PyArg_Parse format unit
by Ilya Novoselov Nov. 30, 2020

Nov. 30, 2020

New submission from Ilya Novoselov <ilya.novoselov(a)gmail.com>: Documentation states that u format unit returns "buffer of 16-bit Unicode (UTF-16) data" while it returns pointer to internal buffer of unicode data, which is either UCS-16 or UCS-32 http://docs.python.org/c-api/arg.html ---------- assignee: docs@python components: Documentation, Unicode messages: 147002 nosy: Ilya.Novoselov, docs@python, ezio.melotti priority: normal severity: normal status: open title: Incorrect … [View More]

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[issue27259] Possible missing deprecation warnings?
by Mark Summerfield Nov. 26, 2020

Nov. 26, 2020

New submission from Mark Summerfield: In the docs for the array module: https://docs.python.org/dev/library/array.html#module-array Note 1 in the table of type codes says that the 'u' type is deprecated and will go in Python 4.0. Since the array.fromunicode() and array.tounicode() methods depend on type code 'u' shouldn't they also be marked as deprecated? If people use the 'u' type code maybe it would be helpful to provide an example of how to store unicode chars in an array.array? (… [View More]

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[issue27839] "Python [...] calls sys.displayhook() on unhandled exceptions"
by Jakub Wilk Nov. 25, 2020

Nov. 25, 2020

New submission from Jakub Wilk: <https://docs.python.org/3/library/asyncio-dev.html#detect-exceptions-never-…> reads: "Python usually calls sys.displayhook() on unhandled exceptions. If Future.set_exception() is called, but the exception is never consumed, sys.displayhook() is not called." I believe this should be s/displayhook/excepthook/g. ---------- assignee: docs@python components: Documentation messages: 273446 nosy: docs@python, jwilk priority: normal severity: normal status: … [View More]

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[issue17576] PyNumber_Index() is not int-subclass friendly
by Barry A. Warsaw Nov. 23, 2020

Nov. 23, 2020

New submission from Barry A. Warsaw: operator.index() is just a thin wrapper around PyNumber_Index(). The documentation for operator.index() claims that it is equivalent to calling obj.__index__() but for subclasses of int, this is not true. In fact, PyNumber_Index() first does (e.g. in Python 3.3) a PyLong_Check() and if that succeeds, the original object is returned *without* doing the moral equivalent in C of calling obj.__index__(). An example: class myint(int): def __index__(self):… [View More]

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[issue20582] socket.getnameinfo() does not document flags
by Roy Smith Nov. 20, 2020

Nov. 20, 2020

New submission from Roy Smith: http://docs.python.org/2/library/socket.html The description for getnameinfo() says, "... Depending on the settings of flags, the result can contain a fully-qualified domain name or numeric address representation in host.", but does not say what to pass for flags to get those behaviors. ---------- assignee: docs@python components: Documentation messages: 210838 nosy: docs@python, roysmith priority: normal severity: normal status: open title: socket.getnameinfo()… [View More]

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[issue17854] symmetric difference operation applicable to more than two sets
by Amit Saha Nov. 18, 2020

Nov. 18, 2020

New submission from Amit Saha: The description of the symmetric difference operation implies that it cannot be applied to more than two sets (http://docs.python.org/3/library/stdtypes.html#set.symmetric_difference). However, this is certainly possible: >>> s={1,2} >>> t={2,3} >>> u={3,4} >>> s^t^u {1, 4} >>> s.symmetric_difference(t).symmetric_difference(u) {1, 4} I am not sure how much of a "semantic" sense that makes, given that symmetric … [View More]

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[issue17887] docs: summary page - generator vs iterator vs iterable
by anatoly techtonik Nov. 17, 2020

Nov. 17, 2020

New submission from anatoly techtonik: Docs lack a good summary page comparing three concepts. The main question is how do I tell if something is a sequence, generator, iterator or iterable? I found myself puzzled that range() is neither generator or iterator. ---------- assignee: docs@python components: Documentation messages: 188203 nosy: docs@python, techtonik priority: normal severity: normal status: open title: docs: summary page - generator vs iterator vs iterable … [View More]

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