need help for python program in SPSS 15

Dear all,

I want to let the following syntax run repeatedly (with file formulas1, ...
formulas20) :

*#####################################.
begin program.

import spss, spssdata

spss.Submit("get file='C:/temp/formulas1.sav'")

formula ={}

curs = spssdata.Spssdata()

for case in curs:

formula[case.var] = case.coeff

curs.CClose()

spss.Submit("get file='C:/temp/main.sav'")

cmd = "COMPUTE newvar = " + "+".join([n.strip() + "*" + \

str(c) for n,c in formula.items()])

print cmd

spss.Submit(cmd)

end program.
*#####################################.

How can I do it? Can someone help me? Thanks in advance!

Regards

Baiyun