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Make isinstance/issubclass overloadable for PEP 3119 #44904

@gvanrossum

Description

@gvanrossum
BPO 1708353
Nosy @gvanrossum, @birkenfeld
Files
  • typechecks.diff: First attempt
  • typechecks.diff: Version 2 fixes important test issue
  • typechecks.diff: Version 3 for gcc 2.96
  • 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 = 'https://github.com/gvanrossum'
    closed_at = <Date 2008-01-06.22:29:46.099>
    created_at = <Date 2007-04-26.20:16:58.000>
    labels = ['interpreter-core']
    title = 'Make isinstance/issubclass overloadable for PEP 3119'
    updated_at = <Date 2008-01-06.22:29:46.099>
    user = 'https://github.com/gvanrossum'

    bugs.python.org fields:

    activity = <Date 2008-01-06.22:29:46.099>
    actor = 'admin'
    assignee = 'gvanrossum'
    closed = True
    closed_date = None
    closer = None
    components = ['Interpreter Core']
    creation = <Date 2007-04-26.20:16:58.000>
    creator = 'gvanrossum'
    dependencies = []
    files = ['7970', '7971', '7972']
    hgrepos = []
    issue_num = 1708353
    keywords = ['patch']
    message_count = 7.0
    messages = ['52529', '52530', '52531', '52532', '52533', '52534', '52535']
    nosy_count = 2.0
    nosy_names = ['gvanrossum', 'georg.brandl']
    pr_nums = []
    priority = 'normal'
    resolution = 'accepted'
    stage = None
    status = 'closed'
    superseder = None
    type = None
    url = 'https://bugs.python.org/issue1708353'
    versions = ['Python 3.0']

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