[GRASS-dev] New wiki page summarising GRASS APIs

[Glynn Clements]

Pietro wrote:

> {{{
> import os
> os.system('g.region rast=elevation')
> }}}
> 
> and not subprocess:
> 
> {{{
> import subprocess
> subprocess.call('g.region rast=elevation', shell=True)
> 
> # or
> 
> subprocess.Popen('g.region rast=elevation', shell=True)
> }}}
> 
> Concerning the pygrass Module API, may be we can use the shortcut version:

Using subprocess.call() with shell=True is no better than using
os.system(). Both should be avoided at all costs.

The grass.script module provides a number of convenience functions
which use grass.script.make_command() to generate the command's
argument list from the function's argument list. Also, they use a
version of subprocess.Popen() which has been wrapped to deal with some
of Windows' idiosyncrasies.

-- 
Glynn Clements <glynn at gclements.plus.com>