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PyArg_ParseTuple(): remove old and unused "O?" format #53083

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vstinner opened this issue May 27, 2010 · 2 comments
Closed

PyArg_ParseTuple(): remove old and unused "O?" format #53083

vstinner opened this issue May 27, 2010 · 2 comments
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interpreter-core Interpreter core (Objects, Python, Grammar, and Parser dirs)

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@vstinner
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vstinner commented May 27, 2010

BPO 8837
Nosy @mdickinson, @vstinner
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  • getarg_oquestion.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 = <Date 2010-05-28.21:55:57.842>
    created_at = <Date 2010-05-27.22:59:39.615>
    labels = ['interpreter-core']
    title = 'PyArg_ParseTuple(): remove old and unused "O?" format'
    updated_at = <Date 2010-05-28.21:55:57.840>
    user = 'https://github.com/vstinner'

    bugs.python.org fields:

    activity = <Date 2010-05-28.21:55:57.840>
    actor = 'vstinner'
    assignee = 'none'
    closed = True
    closed_date = <Date 2010-05-28.21:55:57.842>
    closer = 'vstinner'
    components = ['Interpreter Core']
    creation = <Date 2010-05-27.22:59:39.615>
    creator = 'vstinner'
    dependencies = []
    files = ['17478']
    hgrepos = []
    issue_num = 8837
    keywords = ['patch']
    message_count = 2.0
    messages = ['106624', '106692']
    nosy_count = 2.0
    nosy_names = ['mark.dickinson', 'vstinner']
    pr_nums = []
    priority = 'normal'
    resolution = 'fixed'
    stage = None
    status = 'closed'
    superseder = None
    type = None
    url = 'https://bugs.python.org/issue8837'
    versions = ['Python 3.2']

    @vstinner
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    vstinner commented May 27, 2010

    "O?" format was introduced by r4301 (15 years, 9 months ago). PyArg_ParseTuple() was first documented in Python 2.2, but without the full list of all formats. The format list was added to Python 2.3, but "O?" was never documented. So I get that no third party progam use it.

    In Python trunk, "O?" is no more used and so I propose to remove it to simplify getarg.c (simplify getarg cannot be a bad thing). PyArg_ParseTuple() has now better formats than "O?".

    --

    "O&" calls a callback: if the callback returns 0, raise an error; otherwise gets the object. Example of callbacks: PyXXX_Check() function (eg. PyInt_Check()).

    --

    The full Python test suite pass without any error on a patched Python (trunk).

    @vstinner vstinner added the interpreter-core Interpreter core (Objects, Python, Grammar, and Parser dirs) label May 27, 2010
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    vstinner commented May 28, 2010

    Commited: r81588 (py3k), blocked in 3.1 (r81589).

    @ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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