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Optimize out non-capturing groups #74525

Description

@serhiy-storchaka
BPO 30340
Nosy @ezio-melotti, @serhiy-storchaka, @MojoVampire
PRs
  • bpo-30340: Enhanced regular expressions optimization. #1542
  • 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/serhiy-storchaka'
    closed_at = <Date 2017-05-14.06:54:30.184>
    created_at = <Date 2017-05-11.09:20:53.903>
    labels = ['expert-regex', '3.7', 'library', 'performance']
    title = 'Optimize out non-capturing groups'
    updated_at = <Date 2017-05-14.06:54:30.183>
    user = 'https://github.com/serhiy-storchaka'

    bugs.python.org fields:

    activity = <Date 2017-05-14.06:54:30.183>
    actor = 'serhiy.storchaka'
    assignee = 'serhiy.storchaka'
    closed = True
    closed_date = <Date 2017-05-14.06:54:30.184>
    closer = 'serhiy.storchaka'
    components = ['Library (Lib)', 'Regular Expressions']
    creation = <Date 2017-05-11.09:20:53.903>
    creator = 'serhiy.storchaka'
    dependencies = []
    files = []
    hgrepos = []
    issue_num = 30340
    keywords = []
    message_count = 5.0
    messages = ['293477', '293481', '293501', '293504', '293635']
    nosy_count = 4.0
    nosy_names = ['ezio.melotti', 'mrabarnett', 'serhiy.storchaka', 'josh.r']
    pr_nums = ['1542']
    priority = 'normal'
    resolution = 'fixed'
    stage = 'resolved'
    status = 'closed'
    superseder = None
    type = 'performance'
    url = 'https://bugs.python.org/issue30340'
    versions = ['Python 3.7']

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    3.7 (EOL)end of lifeperformancePerformance or resource usagestdlibStandard Library Python modules in the Lib/ directorytopic-regex

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