Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.lang.python > #52483
| Date | 2013-08-13 20:00 -0400 |
|---|---|
| From | Ned Batchelder <ned@nedbatchelder.com> |
| Subject | Re: Am I not seeing the Error? |
| References | <mailman.451.1376187574.1251.python-list@python.org> <kue4u9$ja1$1@dont-email.me> <kue7n0$heh$1@ger.gmane.org> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.555.1376438468.1251.python-list@python.org> (permalink) |
On 8/13/13 5:16 PM, Dave Angel wrote:
> Denis McMahon wrote:
>
>> On Sat, 10 Aug 2013 22:19:23 -0400, Devyn Collier Johnson wrote:
>>
>>> I am checking my 1292-line script for syntax errors. I ran the following
>>> commands in a terminal to check for errors, but I do not see the error.
>>> JOB_WRITEURGFILES =
>>> multiprocessing.Process(write2file('./mem/ENGINE_PID', ENGINEPID);
>>> write2file(SENTEMPPATH, ''); write2file(INPUTMEM, ''));
>>> JOB_WRITEURGFILES.start()
>> When I expand this out to one item per line,
>>
>> JOB_WRITEURGFILES =
>> multiprocessing.Process
>> (
>> write2file
>> (
>> './mem/ENGINE_PID'
>> ,
>> ENGINEPID
>> )
>> ;
>> write2file
>> (
>> SENTEMPPATH
>> ,
>> ''
>> )
>> ;
>> write2file
>> (
>> INPUTMEM
>> ,
>> ''
>> )
>> )
>> ;
>> JOB_WRITEURGFILES.start()
>>
>> and I wonder (not being familiar with multiprocessing) if perhaps there
>> should have been a third ";" after the third write2file in the job
>> definition.
>>
> The mistake is not that it's missing the 3rd, but that the first two
> semicolons should have been commas. These are parameters to a function
> call multiprocessing.Process()
Everyone: this program seems to be a direct and misguided
transliteration from a bash script. There are dozens of mis-uses like
this of multiprocessing.Process(), due to a severe misunderstanding of
what it does and how it works.
We've tried offering help, and all that's happened is we've been told
that this strange coding style is easier to read.
--Ned.
Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Am I not seeing the Error? Devyn Collier Johnson <devyncjohnson@gmail.com> - 2013-08-10 22:19 -0400
Re: Am I not seeing the Error? John Gordon <gordon@panix.com> - 2013-08-12 14:47 +0000
Re: Am I not seeing the Error? Denis McMahon <denismfmcmahon@gmail.com> - 2013-08-13 20:28 +0000
Re: Am I not seeing the Error? Dave Angel <davea@davea.name> - 2013-08-13 21:16 +0000
Re: Am I not seeing the Error? MRAB <python@mrabarnett.plus.com> - 2013-08-14 00:44 +0100
Re: Am I not seeing the Error? Ned Batchelder <ned@nedbatchelder.com> - 2013-08-13 20:00 -0400
Re: Am I not seeing the Error? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2013-08-14 13:20 +1200
Re: Am I not seeing the Error? Joshua Landau <joshua@landau.ws> - 2013-08-14 07:59 +0100
Re: Am I not seeing the Error? Chris Angelico <rosuav@gmail.com> - 2013-08-14 13:07 +0100
Re: Am I not seeing the Error? Roy Smith <roy@panix.com> - 2013-08-14 08:39 -0400
Re: Am I not seeing the Error? Joshua Landau <joshua@landau.ws> - 2013-08-14 13:34 +0100
csiph-web