[GRASS-dev] how to represent an argument as a variable in a grass python command

[Michael Barton]

Thanks much!!!

Michael
____________________
C. Michael Barton
Director, Center for Social Dynamics & Complexity 
Professor of Anthropology, School of Human Evolution & Social Change
Arizona State University

voice: 	480-965-6262 (SHESC), 480-727-9746 (CSDC)
fax:          480-965-7671 (SHESC),  480-727-0709 (CSDC)
www: http://www.public.asu.edu/~cmbarton, http://csdc.asu.edu











On Sep 2, 2012, at 2:22 PM, Anna Kratochvílová <kratochanna at gmail.com>
 wrote:

> On Sun, Sep 2, 2012 at 11:04 PM, Michael Barton <Michael.Barton at asu.edu> wrote:
>> I'm trying to do a script that calls g.copy
>> 
>> I want the user to be able to select which type of data to copy. So instead
>> of specifying:
>> 
>> grass.run_command('g.copy', rast='%s,%s' % (input, output))
>> 
>> I'd like to something equivalent to:
>> 
>> grass.run_command('g.copy', '%s=%s,%s' % (datatype, input, output))
>> 
>> where datatype is the form of grass data to copy (eg, rast, vect, etc)
>> 
>> The way I'd like to do this doesn't work. So what is the correct syntax
>> here?
> 
> Create a dictionary first:
> 
> dataType = 'rast'
> params = {dataType: '%s,%s' % (input, output)}
> grass.run_command('g.copy', **params)
> 
> Maybe someone comes up with something better but this works.
> 
> Anna
> 
> 
>> 
>> Thanks
>> Michael
>> 
>> ____________________
>> C. Michael Barton
>> Director, Center for Social Dynamics & Complexity
>> Professor of Anthropology, School of Human Evolution & Social Change
>> Arizona State University
>> 
>> voice:  480-965-6262 (SHESC), 480-727-9746 (CSDC)
>> fax:          480-965-7671 (SHESC),  480-727-0709 (CSDC)
>> www: http://www.public.asu.edu/~cmbarton, http://csdc.asu.edu
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
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