Greetings,
I'm attempting to pipe the results from:
pts=sub.Popen('las2txt -i %s --parse xyz --keep-classes 2 --delimiter "|"
--stdout'%path, shell=True, stdout=sub.PIPE)
to the appropriate grass.?_command('r.in.xyz', etc...)
i've tried the following:
mkInRast=grass.feed_command("r.in.xyz", input=pts.communicate()[0],
output='tester', method='mean')
which results in:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/grass64/etc/python/grass/script/core.py", line 198, in
feed_command
return start_command(*args, **kwargs)
File "/usr/lib/grass64/etc/python/grass/script/core.py", line 148, in
start_command
return Popen(args, **popts)
File "/usr/lib/grass64/etc/python/grass/script/core.py", line 53, in __init__
startupinfo, creationflags)
File "/usr/lib/python2.6/subprocess.py", line 623, in __init__
errread, errwrite)
File "/usr/lib/python2.6/subprocess.py", line 1141, in _execute_child
raise child_exception
OSError: [Errno 7] Argument list too long
Im pretty sure i'm missing something about how the Popen pipes are accessed
between these two commands. Any suggestions would be most welcome.
Best,
Peter
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