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Adopt C3-based linearization for improved ABC support in functools.singledispatch #62444

@ecatmur

Description

@ecatmur
mannequin
BPO 18244
Nosy @gvanrossum, @rhettinger, @ambv
Files
  • singledispatch-mro-18244.patch: singledispatch-mro-18244.patch
  • singledispatch-mro-composition.patch
  • issue18244.diff: C3-based approach
  • issue18244.diff: C3-based approach after GvR review
  • issue18244.diff: C3-based approach favoring explicit ABCs
  • issue18244.diff: C3-based approach favoring explicit ABCs (improved)
  • issue18244.diff: C3-based approach favoring explicit ABCs after GvR review
  • 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/ambv'
    closed_at = <Date 2013-07-01.14:27:05.181>
    created_at = <Date 2013-06-17.17:34:28.187>
    labels = ['type-bug', 'library']
    title = 'Adopt C3-based linearization for improved ABC support in functools.singledispatch'
    updated_at = <Date 2013-07-02.09:13:29.730>
    user = 'https://bugs.python.org/ecatmur'

    bugs.python.org fields:

    activity = <Date 2013-07-02.09:13:29.730>
    actor = 'lukasz.langa'
    assignee = 'lukasz.langa'
    closed = True
    closed_date = <Date 2013-07-01.14:27:05.181>
    closer = 'lukasz.langa'
    components = ['Library (Lib)']
    creation = <Date 2013-06-17.17:34:28.187>
    creator = 'ecatmur'
    dependencies = []
    files = ['30623', '30646', '30657', '30711', '30733', '30735', '30738']
    hgrepos = ['200']
    issue_num = 18244
    keywords = ['patch']
    message_count = 17.0
    messages = ['191350', '191351', '191355', '191424', '191455', '191535', '191921', '191947', '191956', '192040', '192060', '192069', '192076', '192096', '192128', '192132', '192184']
    nosy_count = 6.0
    nosy_names = ['gvanrossum', 'rhettinger', 'ggenellina', 'lukasz.langa', 'python-dev', 'ecatmur']
    pr_nums = []
    priority = 'normal'
    resolution = 'fixed'
    stage = 'resolved'
    status = 'closed'
    superseder = None
    type = 'behavior'
    url = 'https://bugs.python.org/issue18244'
    versions = ['Python 3.4']

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    stdlibStandard Library Python modules in the Lib/ directorytype-bugAn unexpected behavior, bug, or error

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