Hi Just one question: is there any difference, when it comes to processing, between run_command and read_command? and from read_command can I retrieve the error also? THanks
2011/5/19 Glynn Clements <[email protected]> > > Luisa Peña wrote: > > > I'm using grass.run_command and I have one question: besides setting > flags, > > parameters can I also get error and output from that function like > > p=grass.run_command("r.out.xyz", parameters=X, flags="f...", > stdout=output, > > stderr=error) > > Use read_command or pipe_command. > > read_command returns the command's output (stdout) as a string. > > pipe_command returns the Popen object; read from its .stdout member. > Call the .wait() method when you're done with it. For details of Popen > objects, see: > > http://docs.python.org/library/subprocess.html#popen-objects > > The most general function is start_command, upon which all of the > *_command functions (except for exec_command) are built. Again, this > function returns the Popen object. > > Refer to the source code ($GISBASE/etc/python/grass/script/core.py) > for more details. Most of those functions are only a few lines long. > > -- > Glynn Clements <[email protected]> >
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