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subprocess.Popen and thread module

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  subprocess.Popen and thread module "Danny Wong (dannwong)" <dannwong@cisco.com> - 2011-08-10 01:38 -0500
    Re: subprocess.Popen and thread module Thomas Rachel <nutznetz-0c1b6768-bfa9-48d5-a470-7603bd3aa915@spamschutz.glglgl.de> - 2011-08-10 12:09 +0200

#11095 — subprocess.Popen and thread module

Hi All,
   I'm trying to execute some external commands from multiple database.
I'm using threads and subprocess.Popen ( from docs, all the popen*
functions are deprecated and I was told to use subprocess.Popen) to
execute the external commands in parallel, but the commands seems to
hang. 
My question is:
Is subprocess.Popen thread safe?  If not, what other module should I use
to perform a system call? I also, want to log stdout and stderr to a
file. Thanks.

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#11107

Am 10.08.2011 08:38 schrieb Danny Wong (dannwong):
> Hi All,
>     I'm trying to execute some external commands from multiple database.
> I'm using threads and subprocess.Popen ( from docs, all the popen*
> functions are deprecated and I was told to use subprocess.Popen) to
> execute the external commands in parallel, but the commands seems to
> hang.
> My question is:
> Is subprocess.Popen thread safe?

Do you really need threads here? As you just run those external commands 
(as far as I understand), it might be enough to start the commands, hold 
their object, read them out (maybe part for part) and then wait().


Thomas

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