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Regression in memory use of shared key dictionaries for "compact dicts" #84297

@markshannon

Description

@markshannon
BPO 40116
Nosy @malemburg, @rhettinger, @methane, @markshannon, @serhiy-storchaka
PRs
  • bpo-40116: Add insertion order bit-vector to dict values to allow dicts to share keys more freely. #28520
  • bpo-40116: dict: Add regression test for iteration order. #31550
  • Files
  • compact_dict_prevents_key_sharing.py
  • 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 2022-01-20.11:50:36.639>
    created_at = <Date 2020-03-30.15:13:56.918>
    labels = ['interpreter-core', 'type-bug']
    title = 'Regression in memory use of shared key dictionaries for "compact dicts"'
    updated_at = <Date 2022-03-03.04:06:40.503>
    user = 'https://github.com/markshannon'

    bugs.python.org fields:

    activity = <Date 2022-03-03.04:06:40.503>
    actor = 'methane'
    assignee = 'none'
    closed = True
    closed_date = <Date 2022-01-20.11:50:36.639>
    closer = 'Mark.Shannon'
    components = ['Interpreter Core']
    creation = <Date 2020-03-30.15:13:56.918>
    creator = 'Mark.Shannon'
    dependencies = []
    files = ['49013']
    hgrepos = []
    issue_num = 40116
    keywords = ['patch']
    message_count = 15.0
    messages = ['365319', '365320', '365322', '365325', '365326', '365390', '402443', '402465', '402468', '402493', '402494', '403299', '413884', '413894', '414403']
    nosy_count = 5.0
    nosy_names = ['lemburg', 'rhettinger', 'methane', 'Mark.Shannon', 'serhiy.storchaka']
    pr_nums = ['28520', '31550']
    priority = 'normal'
    resolution = 'fixed'
    stage = 'resolved'
    status = 'closed'
    superseder = None
    type = 'behavior'
    url = 'https://bugs.python.org/issue40116'
    versions = []

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      interpreter-core(Objects, Python, Grammar, and Parser dirs)type-bugAn unexpected behavior, bug, or error

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