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PyInstanceMethod_Type isn't hashable #73028

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PyInstanceMethod_Type isn't hashable#73028
Labels
3.11only security fixesinterpreter-core(Objects, Python, Grammar, and Parser dirs)type-featureA feature request or enhancement

Description

@wolever
wolever
opened on Nov 30, 2016
BPO 28842
Nosy @wolever, @MojoVampire

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 = None
created_at = <Date 2016-11-30.18:26:33.954>
labels = ['interpreter-core', 'type-feature', '3.11']
title = "PyInstanceMethod_Type isn't hashable"
updated_at = <Date 2021-11-30.16:58:14.601>
user = 'https://github.com/wolever'

bugs.python.org fields:

activity = <Date 2021-11-30.16:58:14.601>
actor = 'iritkatriel'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Interpreter Core']
creation = <Date 2016-11-30.18:26:33.954>
creator = 'wolever'
dependencies = []
files = []
hgrepos = []
issue_num = 28842
keywords = []
message_count = 2.0
messages = ['282091', '282094']
nosy_count = 2.0
nosy_names = ['wolever', 'josh.r']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue28842'
versions = ['Python 3.11']

Activity

  1. wolever commented on Nov 30, 2016

    @wolever
    wolever
    on Nov 30, 2016
    MemberAuthor

    The PyInstanceMethod_Type, unlike all other method types, isn't hashable.

    It seems like the code exists, it's just been commented out: https://github.com/python/cpython/blame/c30098c8c6014f3340a369a31df9c74bdbacc269/Objects/classobject.c#L569

    This came up here: wolever/pprintpp#18

    And Christian Heimes doesn't remember why it was commented out: https://twitter.com/ChristianHeimes/status/803900655324790784

  2. wolever
    added
    type-bugAn unexpected behavior, bug, or error
    3.7 (EOL)end of life
    on Nov 30, 2016

  3. MojoVampire commented on Nov 30, 2016

    @MojoVampire
    MojoVampiremannequin
    on Nov 30, 2016
    Mannequin

    Note: It's a little strange that instancemethod as a type sticks around even though literally nothing in Python uses it. Is there some reason we kept it in the 3.x transition? Extension types are using it, so I guess we can't drop it now, but I'm trying to figure out why it was kept around, allowing the extensions to develop dependencies on it.

  4. iritkatriel
    added
    3.11only security fixes
    type-featureA feature request or enhancement
    interpreter-core(Objects, Python, Grammar, and Parser dirs)
    and removed
    3.7 (EOL)end of life
    type-bugAn unexpected behavior, bug, or error
    on Nov 30, 2021
  5. ezio-melotti
    transferred this issue fromon Apr 10, 2022

  6. hugovk commented on Feb 28, 2024

    @hugovk
    hugovk
    on Feb 28, 2024
    Member

    It seems like the code exists, it's just been commented out: c30098c/Objects/classobject.c#L569 (blame)

    The commented instancemethod_hash was removed in #31814.

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