Mailman 3 September 2017 - docs

[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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[issue13875] cmd: no user documentation
by anatoly techtonik Nov. 17, 2020

Nov. 17, 2020

New submission from anatoly techtonik <techtonik(a)gmail.com>: http://docs.python.org/library/cmd.html# Documentation for cmd module is poor to explain the value of this module to users. Intro is too abstract - phrase "simple framework for writing line-oriented command interpreters" doesn't mean much. Perhaps word "interactive" is missing? So, there is no part explaining the what cmd does exactly (intro fails) and no part explaining the main principle - How exactly does this framework … [View More]

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[issue17939] Misleading information about slice assignment in docs
by Stefan Chrobot Nov. 17, 2020

Nov. 17, 2020

New submission from Stefan Chrobot: http://docs.python.org/3/reference/simple_stmts.html#assignment-statements The docs says: "If the target is a slicing: The primary expression in the reference is evaluated. It should yield a mutable sequence object (such as a list). The assigned object should be a sequence object of the same type." This seems wrong, because the assigned object can be any iterable: a = [4, 5, 6] a[0:0] = range(1, 4) # a is now [1, 2, 3, 4, 5, 6] ---------- assignee: docs@… [View More]

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[issue9538] Replace confusing pseudoname 'object' in special methods section.
by Terry J. Reedy Nov. 17, 2020

Nov. 17, 2020

New submission from Terry J. Reedy <tjreedy(a)udel.edu>: In 3.3. Special method names, 'object' is used as a pseudo class name to prefix all the special method entries. This conflicts with the usual two Python meanings. 1. 'object' is the name of a specific class. So the entry for object.__getattribute__(self, name) says to avoid circularity by calling object.__getattribute__(self, name), which looks circular and requires a bit a mental work by the reader to properly understand. Ditto … [View More]

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[issue13561] os.listdir documentation should mention surrogateescape
by Michael Foord Nov. 16, 2020

Nov. 16, 2020

New submission from Michael Foord <michael(a)voidspace.org.uk>: Where os.listdir encounters undecodable bytes from the filesystem it uses the surrogateescape handler. As the resulting strings are invalid they can't be encoded without an errorhandler, and so can't be printed (for example). This should be documented. ---------- assignee: docs@python components: Documentation messages: 149070 nosy: docs@python, michael.foord priority: normal severity: normal stage: needs patch status: … [View More]

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[issue14338] urllib2 HowTo for overriding post/3xx behavior.
by beeNuts Nov. 16, 2020

Nov. 16, 2020

New submission from beeNuts <jeff.adams(a)linux.com>: Issue #14144, with the title "urllib2 HTTPRedirectHandler not forwarding POST data in redirect" was recently closed with these comments: "This could be cookbook recipe style example, if it's utility value is high. I am closing this issue as I feel that the requirement may not be addressed by a change. If there is patch for HowTo, we can tackle that in another issue. Thank you for contribution." The decision that documents on this … [View More]

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[issue17437] Difference between open and codecs.open
by Giampaolo Rodola' Nov. 15, 2020

Nov. 15, 2020

New submission from Giampaolo Rodola': In Python 2 the distinction between open() and codes.open() was clear because 'encoding' and 'errors' args were provided by codecs.open only. This is no longer the case in Python 3 since both args are provided also by open(). I'm probably missing something but regardless I think codecs.open doc [1] should be more clear as to when and why (say) codecs.open(file, encoding='utf8', errors='ignore') should be preferred over open(file, encoding='utf8', errors='… [View More]

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[issue27119] `compile` doesn't compile into an AST object as specified
by Franklin? Lee Nov. 15, 2020

Nov. 15, 2020

New submission from Franklin? Lee: >From `compile`'s doc: "Compile the source into a code or AST object." The docs don't say how to compile into an AST object with `compile`, though. As it says later: "If you want to parse Python code into its AST representation, see ast.parse()." I checked 3.4-3.2, 3.0, 2.7, and 2.6. Versions before 3.4, and version 2.6, are missing the `ast.parse` line, but still have the first line. ---------- assignee: docs@python components: Documentation … [View More]

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