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sched - provide an "async" argument for run() method #57658

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giampaolo opened this issue Nov 22, 2011 · 6 comments
Closed

sched - provide an "async" argument for run() method #57658

giampaolo opened this issue Nov 22, 2011 · 6 comments
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@giampaolo
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stdlib Python modules in the Lib dir type-feature A feature request or enhancement

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@giampaolo
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BPO 13449
Nosy @josiahcarlson, @pitrou, @giampaolo
Files
  • sched-async.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 = 'https://github.com/giampaolo'
closed_at = <Date 2011-12-14.13:41:06.308>
created_at = <Date 2011-11-22.00:19:43.202>
labels = ['type-feature', 'library']
title = 'sched - provide an "async" argument for run() method'
updated_at = <Date 2011-12-14.13:41:46.257>
user = 'https://github.com/giampaolo'

    bugs.python.org fields:

    activity = <Date 2011-12-14.13:41:46.257>
actor = 'giampaolo.rodola'
assignee = 'giampaolo.rodola'
closed = True
closed_date = <Date 2011-12-14.13:41:06.308>
closer = 'giampaolo.rodola'
components = ['Library (Lib)']
creation = <Date 2011-11-22.00:19:43.202>
creator = 'giampaolo.rodola'
dependencies = []
files = ['23746']
hgrepos = []
issue_num = 13449
keywords = ['patch']
message_count = 6.0
messages = ['148095', '148097', '149443', '149444', '149445', '149448']
nosy_count = 5.0
nosy_names = ['josiahcarlson', 'pitrou', 'giampaolo.rodola', 'josiah.carlson', 'python-dev']
pr_nums = []
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue13449'
versions = ['Python 3.3']
    @giampaolo
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    If True it would run the scheduled functions due to expire soonest (if any) and then return.
    This would make sched module usable into asynchronous applications.

    @pitrou
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    pitrou commented Nov 22, 2011

    I think this would be better served by a separate method. You could call it e.g. run_nowait().

    @ezio-melotti ezio-melotti added stdlib Python modules in the Lib dir type-feature A feature request or enhancement labels Dec 2, 2011
    @giampaolo
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    What about run(nowait=...) or run(only_ready=...)?
    Doing this as a separate method seems unnecessarily complicated to me in terms of implementation (move run logic into _run, add "run" and "run_nowait", etc...).
    Most importantly, the user will have to remember two methods which are basically equivalent in terms of "what they actually do".

    @pitrou
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    pitrou commented Dec 14, 2011

    That's a good point. Then perhaps call the flag "wait" or "blocking", since it avoids false positives and is more explicit than "async"?

    @giampaolo
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    "blocking" seems the most explicit to me.
    With this, we can also fix bpo-1641 by providing a specific section into asyncore doc which explains how to use asyncore in conjunction with sched.

    @python-dev
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    python-dev mannequin commented Dec 14, 2011

    New changeset 2975618965c0 by Giampaolo Rodola' in branch 'default':
    Fix bpo-13449: add 'blocking' parameter to sched.scheduler.run() so that the scheduler can be used in non-blocking applications
    http://hg.python.org/cpython/rev/2975618965c0

    @giampaolo giampaolo self-assigned this Dec 14, 2011
    @ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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    @giampaolo giampaolo

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