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dreadful performance in difflib: ndiff and HtmlDiff #51180

@heidarrafn

Description

@heidarrafn
BPO 6931
Nosy @tim-one, @terryjreedy, @jackdied, @merwok, @funkyHat
Files
  • python.difflib.bug.tgz: a gzipped tar with 6 testfiles - see comment above
  • 11740.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 = None
    closed_at = None
    created_at = <Date 2009-09-17.14:54:57.533>
    labels = ['type-feature', 'library']
    title = 'dreadful performance in difflib: ndiff and HtmlDiff'
    updated_at = <Date 2017-05-06.22:48:36.280>
    user = 'https://bugs.python.org/heidarrafn'

    bugs.python.org fields:

    activity = <Date 2017-05-06.22:48:36.280>
    actor = 'gregory.p.smith'
    assignee = 'none'
    closed = False
    closed_date = None
    closer = None
    components = ['Library (Lib)']
    creation = <Date 2009-09-17.14:54:57.533>
    creator = 'heidar.rafn'
    dependencies = []
    files = ['14911', '21588']
    hgrepos = []
    issue_num = 6931
    keywords = ['patch']
    message_count = 14.0
    messages = ['92768', '99883', '102345', '112910', '132797', '133329', '133330', '133339', '133340', '139891', '222588', '222589', '222590', '223459']
    nosy_count = 10.0
    nosy_names = ['tim.peters', 'terry.reedy', 'jackdied', 'eric.araujo', 'gruszczy', 'heidar.rafn', 'neologix', 'zitrax', 'funkyhat', 'Christopher.Cabanne']
    pr_nums = []
    priority = 'normal'
    resolution = None
    stage = None
    status = 'open'
    superseder = None
    type = 'enhancement'
    url = 'https://bugs.python.org/issue6931'
    versions = ['Python 2.7', 'Python 3.4', 'Python 3.5']

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