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Restore isinstance and issubclass speed in 2.6 #46786

@theller

Description

@theller
BPO 2534
Nosy @warsaw, @theller, @rhettinger, @facundobatista, @gpshead, @pitrou, @devdanzin, @benjaminp, @djc
PRs
  • bpo-2534: Restore PyObject_IsInstance() comment #18345
  • Dependencies
  • bpo-2542: PyErr_ExceptionMatches must not fail
  • Files
  • type_instancecheck.diff
  • type_instancecheck-2.diff: Cleaner patch, same functionality
  • isinstance3k.patch
  • isinstance3k-2.patch
  • isinstance26-2.patch
  • 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/pitrou'
    closed_at = <Date 2008-08-26.22:42:41.300>
    created_at = <Date 2008-04-02.09:47:47.244>
    labels = ['release-blocker', 'performance']
    title = 'Restore isinstance and issubclass speed in 2.6'
    updated_at = <Date 2020-02-04.09:42:29.110>
    user = 'https://github.com/theller'

    bugs.python.org fields:

    activity = <Date 2020-02-04.09:42:29.110>
    actor = 'vstinner'
    assignee = 'pitrou'
    closed = True
    closed_date = <Date 2008-08-26.22:42:41.300>
    closer = 'pitrou'
    components = []
    creation = <Date 2008-04-02.09:47:47.244>
    creator = 'theller'
    dependencies = ['2542']
    files = ['9924', '9927', '11256', '11257', '11261']
    hgrepos = []
    issue_num = 2534
    keywords = ['patch', 'needs review']
    message_count = 16.0
    messages = ['64842', '64859', '64869', '64870', '64875', '64895', '69617', '70358', '71937', '71951', '71957', '71960', '71975', '71980', '71981', '72001']
    nosy_count = 9.0
    nosy_names = ['barry', 'theller', 'rhettinger', 'facundobatista', 'gregory.p.smith', 'pitrou', 'ajaksu2', 'benjamin.peterson', 'djc']
    pr_nums = ['18345']
    priority = 'release blocker'
    resolution = 'fixed'
    stage = None
    status = 'closed'
    superseder = None
    type = 'performance'
    url = 'https://bugs.python.org/issue2534'
    versions = ['Python 2.6', 'Python 3.0']

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