Unknown option argument: "--multiprocessing-fork"

CanisMajorWuff

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Dec 23, 2014, 5:32:05 AM12/23/14

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I have an error on Windows vim version 7.4.417: Unknown option argument:
"--multiprocessing-fork" . It is related to using python
multiprocessing. How I can fix that?

Christian Brabandt

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Dec 23, 2014, 7:24:08 AM12/23/14

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Hi CanisMajorWuff!

There is no such argument --multiprocessing-fork for vim. How did you
encounter that?

Mit freundlichen Grüßen
Christian
--
Kunst ist eine Art zwanghafter Akrobatik.
-- Emilio Vendova (ART - Das Kunstmagazin 1985 / 7)

Canis Major

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Dec 23, 2014, 11:37:48 PM12/23/14

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I encountered it by using python plugin which uses python multiprocessing module.

Eric Christopherson

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Dec 24, 2014, 12:03:37 AM12/24/14

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I don't understand how pymode or rope passes this argument to Vim, but
this thread <https://github.com/klen/python-mode/issues/422> makes it
look like this has to do with using HEAD by default; try using commit
20e14aa as it says in that thread. (I don't know if there's a newer
commit that would also work, but it's worth investigating.)

--
Eric Christopherson

Canis Major

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Dec 24, 2014, 4:48:47 AM12/24/14

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This is not related to pymore or rope or whatever plugin you think there.
It is related to python multiprocessing module called from vim python plugin.

Christian Brabandt

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Dec 24, 2014, 7:12:43 AM12/24/14

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Hi Canis!
(Please do not top poste)

On Mi, 24 Dez 2014, Canis Major wrote:

> This is not related to pymore or rope or whatever plugin you think there.
> It is related to python multiprocessing module called from vim python plugin.

Well, somehow you must be calling Vim with the --multiprocessing-fork
argument. That is no argument for Vim so you get an error. So again, how
do you call vim?

Mit freundlichen Grüßen
Christian
--

Der heutige Tag ist ein Resultat des gestrigen. Was dieser gewollt
hat, müssen wir erforschen, wenn wir zu wissen wünschen, was jener
will.
-- Erich Kästner

Yggdroot Chen

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Jun 22, 2016, 12:25:06 AM6/22/16

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在 2014年12月23日星期二 UTC+8下午6:32:05，Canis Major写道：

> I have an error on Windows vim version 7.4.417: Unknown option argument:
> "--multiprocessing-fork" . It is related to using python
> multiprocessing. How I can fix that?

Same issue here on Windows vim version 7.4.1923.
It's not related to any plugin.
To reproduce:
:py from multiprocessing import Pool
:py p = Pool(4)

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