create a python function from procedure file 如何操作？

#
# create a python function from procedure file
# usage:
# python py_create.py input.proc output.py
# where
# input.proc is the procedure filename
# output.py is the python script name
#
import sys
import string
def main(fnamei, fnameo):
i = open(fnamei,"r")
o = open(fnameo,"w")
o.write("from py_mentat import *\n")
o.write("def main():\n")
for line in i.readlines():
s = string.strip(line)
if s == "":
continue
# print line
st = " py_send(\"%s \")\n" % s
o.write(st)
o.write("\n")
o.write("if __name__ == '__main__':\n")
o.write(" main()\n")
if __name__ == "__main__":
main(sys.argv[1],sys.argv[2])