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add support for != (not-equals) in ElementTree XPath #84804

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anntzer mannequin opened this issue May 14, 2020 · 3 comments
Closed

add support for != (not-equals) in ElementTree XPath #84804

anntzer mannequin opened this issue May 14, 2020 · 3 comments
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3.10 only security fixes topic-XML type-feature A feature request or enhancement

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@anntzer
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anntzer mannequin commented May 14, 2020

BPO 40624
Nosy @scoder, @ammaraskar, @remilapeyre
PRs
  • bpo-40624: Add support for the XPath != operator in xml.etree #22147
    		•

    Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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    GitHub fields:

    assignee = None
closed_at = <Date 2020-11-09.07:04:04.713>
created_at = <Date 2020-05-14.11:25:02.141>
labels = ['expert-XML', 'type-feature', '3.10']
title = 'add support for != (not-equals) in ElementTree XPath'
updated_at = <Date 2020-11-09.12:44:10.111>
user = 'https://github.com/anntzer'

    bugs.python.org fields:

    activity = <Date 2020-11-09.12:44:10.111>
actor = 'Antony.Lee'
assignee = 'none'
closed = True
closed_date = <Date 2020-11-09.07:04:04.713>
closer = 'scoder'
components = ['XML']
creation = <Date 2020-05-14.11:25:02.141>
creator = 'Antony.Lee'
dependencies = []
files = []
hgrepos = []
issue_num = 40624
keywords = ['patch']
message_count = 3.0
messages = ['368829', '376544', '380572']
nosy_count = 3.0
nosy_names = ['scoder', 'ammar2', 'remi.lapeyre']
pr_nums = ['22147']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue40624'
versions = ['Python 3.10']
    @anntzer
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    anntzer mannequin commented May 14, 2020

    It would be a small usability improvement if ElementTree's XPath support also supported the != (not-equals) operator.
    I am specifically mentioning only != and not >/</... because != can be defined as the opposite of =, whereas other operators appear to run into questions of what to do with coercion of strings to numbers, etc. (I guess that depends on the version of XPath, which may be a question we want to avoid for now.)

    @anntzer anntzer mannequin added 3.9 only security fixes topic-XML labels May 14, 2020
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    scoder commented Sep 8, 2020

    Agreed that adding "!=" would be a nice improvement, probably not very invasive. PR welcome.

    https://www.w3.org/TR/xpath-10/#booleans

    @scoder scoder added 3.10 only security fixes type-feature A feature request or enhancement and removed 3.9 only security fixes labels Sep 8, 2020
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    scoder commented Nov 9, 2020

    New changeset 97e8b1e by Ammar Askar in branch 'master':
    bpo-40624: Add support for the XPath != operator in xml.etree (GH-22147)
    97e8b1e

    @scoder scoder closed this as completed Nov 9, 2020
    @scoder scoder closed this as completed Nov 9, 2020
    @ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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