Calling multiple programs with subprocess

Kushal Kumaran kushal.kumaran+python at gmail.com
Sat Apr 24 04:52:14 CEST 2010


On Sat, Apr 24, 2010 at 1:21 AM, Amit Uttamchandani
<amit.uttam at gmail.com> wrote:
> On Thu, Apr 22, 2010 at 10:12:47PM -0400, Dave Angel wrote:
>> amit wrote:
>> >How does one go about calling multiple programs using subprocess?
>> >
>> >This is the program flow:
>> >
>> >C:\> wrenv.exe
>> >C:\> make clean
>> >..
>> >..
>> >
>> >The 'wrenv.exe' is necessary since it sets up the proper environment
>> >for building. How do I use subprocess to execute 'wrenv.exe' and then
>> >the 'make clean' command.
>> >
>> >Any help is appreciated.
>> >
>> >Thanks,
>> >Amit
>> >
>> One way is to write a batch file (since you're on Windows), and
>> execute that with shell=True.
>>
>> It's not the only way, or the most efficient.  But it's most likely
>> to work, without knowing anything more about those two programs.
>>
>> DaveA
>>
>
> Thanks Dave.
>
> That's actually a good idea and in this case probably the only way that
> this would work. I can auto-generate the batch file from the python
> script with the parameters that I need and just execute that with the
> subprocess.
>
> I wish there was a cleaner was as well.
>

Run a shell (cmd.exe, I think) using subprocess and send it the
commands you want to run using the communicate() method.

-- 
regards,
kushal



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