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Date: Wed, 30 Jan 2013 09:57:24 -0800
Subject: Re: how to use subprocess to execute an exe with args and an output
From: Chris Rebert <clp2@rebertia.com>
To: noydb <jenn.duerr@gmail.com>
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On Wed, Jan 30, 2013 at 9:15 AM, noydb <jenn.duerr@gmail.com> wrote:
> I am looking for some guidance on using subprocess to execute an EXE with=
 arguments and an output.  The below code works in that it returns a 0 exit=
 code, but no output file is created.  I have tried a few different version=
s of this code (used Popen instead, some stderr/stdout), but no luck.  Can =
anyone offer an explanation or suggestion?  (GPSBabel is freeware)
> Python 2.7 on windows7 64-bit
>
> import subprocess
> subprocess.call([r"C:\Program Files (x86)\GPSBabel\gpsbabel.exe",
>                 "-i", "gdb", "-f", r"C:\Temp\GDBdata\testgps28.gdb",
>                 "-o", "gpx", r"C:\Temp\gpx\test28output.gpx"])

If my cursory reading of GPSBabel's documentation is right, you're
missing a "-F" before the output filepath. Try:

subprocess.call([
    r"C:\Program Files (x86)\GPSBabel\gpsbabel.exe",
    "-i", "gdb",
    "-f", r"C:\Temp\GDBdata\testgps28.gdb",
    "-o", "gpx",
    "-F", r"C:\Temp\gpx\test28output.gpx",
])

Regards,
Chris