[GRASS-user] g.remove multiple files in python

GRASS GRASS user
1

Hi,

how to convert something like:

g.remove rast=g.mlist pat=r_start* sep=,

in python?

Thanks!

–

Margherita DI LEO
Postdoctoral Researcher

European Commission - DG JRC
Institute for Environment and Sustainability (IES). Unit H03 – FRC
Via Fermi, 2749
I-21027 Ispra (VA) - Italy - TP 261

Tel. +39 0332 78 3600
margherita.di-leo@jrc.ec.europa.eu

Disclaimer: The views expressed are purely those of the writer and may not in any circumstance be regarded as stating an official position of the European Commission.

2

Margherita Di Leo wrote:

how to convert something like:

g.remove rast=`g.mlist pat=r_start* sep=,`

in python?

MaDi,

wouldn't a simple

# get list of r_start* raster maps -- split line-by-line
list_of_r_starts = grass.read_command('g.mlist', type= "rast" , pat =
"r_start*")
r_starts = list_of_r_starts.splitlines()

and then feed "g.mrenove" work for you?

Best, N

ps- sorry, old py-grass read_command in my example.

3

On 25/01/13 15:28, Margherita Di Leo wrote:

Hi,

how to convert something like:

g.remove rast=`g.mlist pat=r_start* sep=,`

in python?

Try with g.mremove:

grass.run_command('g.mremove', rast='r_start*', flags='f')

Moritz

4

On Fri, Jan 25, 2013 at 3:46 PM, Moritz Lennert <mlennert@club.worldonline.be> wrote:

On 25/01/13 15:28, Margherita Di Leo wrote:

Hi,

how to convert something like:

g.remove rast=g.mlist pat=r_start* sep=,

in python?

Try with g.mremove:

grass.run_command(‘g.mremove’, rast=‘r_start*’, flags=‘f’)

YESS!
Thanks!

Moritz

–

Margherita DI LEO
Postdoctoral Researcher

European Commission - DG JRC
Institute for Environment and Sustainability (IES). Unit H03 – FRC
Via Fermi, 2749
I-21027 Ispra (VA) - Italy - TP 261

Tel. +39 0332 78 3600
margherita.di-leo@jrc.ec.europa.eu

Disclaimer: The views expressed are purely those of the writer and may not in any circumstance be regarded as stating an official position of the European Commission.

5

Hi Margherita,

On Fri, Jan 25, 2013 at 3:28 PM, Margherita Di Leo <diregola@gmail.com> wrote:

Hi,

how to convert something like:

g.remove rast=`g.mlist pat=r_start* sep=,`

in python?

GRASS7: r54769

from pygrass.modules import general as g
from pygrass.gis import Mapset
g.remove(vect=Mapset().glist('vect', pattern='points*'))

Removing vector <points04>
Removing vector <points01>
Removing vector <points02>
Removing vector <points00>
Removing vector <points03>

The method glist, of the Mapset class return a list of maps:

Mapset().glist('vect', pattern='points*')

['points04', 'points01', 'points02', 'points00', 'points03']