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ncurses does not include BUTTON5_* constants #83454

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msjyoo mannequin opened this issue Jan 9, 2020 · 3 comments
Closed

ncurses does not include BUTTON5_* constants #83454

msjyoo mannequin opened this issue Jan 9, 2020 · 3 comments
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3.10 stdlib type-crash

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@msjyoo
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@msjyoo msjyoo mannequin commented Jan 9, 2020

BPO 39273
Nosy @serhiy-storchaka, @NoSuck, @ZackerySpytz, @msjyoo
PRs
  • #17996
  • 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 2021-01-14.09:40:58.297>
    created_at = <Date 2020-01-09.06:59:01.409>
    labels = ['library', '3.10', 'type-crash']
    title = 'ncurses does not include BUTTON5_* constants'
    updated_at = <Date 2021-01-14.09:40:58.295>
    user = 'https://github.com/msjyoo'

    bugs.python.org fields:

    activity = <Date 2021-01-14.09:40:58.295>
    actor = 'serhiy.storchaka'
    assignee = 'none'
    closed = True
    closed_date = <Date 2021-01-14.09:40:58.297>
    closer = 'serhiy.storchaka'
    components = ['Library (Lib)']
    creation = <Date 2020-01-09.06:59:01.409>
    creator = 'michael.yoo@akunacapital.com'
    dependencies = []
    files = []
    hgrepos = []
    issue_num = 39273
    keywords = ['patch']
    message_count = 3.0
    messages = ['359657', '378252', '385065']
    nosy_count = 4.0
    nosy_names = ['serhiy.storchaka', 'IronGrid', 'ZackerySpytz', 'michael.yoo@akunacapital.com']
    pr_nums = ['17996']
    priority = 'normal'
    resolution = 'fixed'
    stage = 'resolved'
    status = 'closed'
    superseder = None
    type = 'crash'
    url = 'https://bugs.python.org/issue39273'
    versions = ['Python 3.10']

    @msjyoo
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    @msjyoo msjyoo mannequin commented Jan 9, 2020

    Hi,

    Recently I was working with ncurses, and when handling the mouse scroll events, I noticed that the curses library does not include the BUTTON5_* macros provided by ncurses. On my system, BUTTON5 corresponds to the mouse down event.

    Is there a reason for this, or has it just not been updated? If so, the expectation is that it exists.

    Relevant source location: https://github.com/python/cpython/blob/2bc3434/Modules/_cursesmodule.c#L4668

    @msjyoo msjyoo mannequin added 3.7 3.8 type-feature 3.9 stdlib labels Jan 9, 2020
    @ZackerySpytz ZackerySpytz mannequin removed 3.7 3.8 labels Jan 14, 2020
    @NoSuck
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    @NoSuck NoSuck mannequin commented Oct 8, 2020

    This baffled me, as well. Does the reason involve bit-field width?

    By the way, look at what my Python installation does when just pressing button 5 (mouse wheel down) after calling curses.mousemask():

    _curses.error: getmouse() returned ERR
    

    The curses program then crashes with an exit code of 1.

    $ uname -srvmo
    Linux 5.4.51-v7l+ python/cpython#45674 SMP Mon Aug 10 16:51:40 BST 2020 armv7l GNU/Linux
    $ python3 -V
    Python 3.7.3
    

    @NoSuck NoSuck mannequin added 3.7 type-crash 3.8 3.9 and removed 3.9 type-feature labels Oct 8, 2020
    @serhiy-storchaka
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    @serhiy-storchaka serhiy-storchaka commented Jan 14, 2021

    New changeset 14cfa32 by Zackery Spytz in branch 'master':
    bpo-39273: Expose BUTTON5_* constants in the curses module if available (GH-17996)
    14cfa32

    @ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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