trivial.py
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	#!/usr/bin/env python -i
	# preceeding line should have path for Python on your machine

	# trivial.py
	# Purpose: run a LAMMPS input script via Python
	# Syntax: trivial.py in.lammps
	# in.lammps = LAMMPS input script

	import sys

	# parse command line

	argv = sys.argv
	if len(argv) != 2:
	print "Syntax: trivial.py in.lammps"
	sys.exit()

	infile = sys.argv[1]

	me = 0
	# uncomment if running in parallel via Pypar
	#import pypar
	#me = pypar.rank()
	#nprocs = pypar.size()

	from lammps import lammps
	lmp = lammps()

	# run infile all at once

	lmp.file(infile)

	# run infile one line at a time

	#lines = open(infile,'r').readlines()
	#for line in lines: lmp.command(line)

	# uncomment if running in parallel via Pypar
	#print "Proc %d out of %d procs has" % (me,nprocs), lmp
	#pypar.finalize()