How to write integers to a file?

[Janko Hauser]

Let's start with one line

# opens the file
fd=open('test.dat','w')
# create the data
data=[1,2,3,4,5,6]
# write(string) where string consists of a special format string
# later you want to create the format string once before a loop
# the parentheses are used to evaluate the thing in the right order
# then the % operator is used with a tuple.
fd.write(('%d,'* (len(data)-1) + '%d\n') % tuple(data))
fd.close()

HTH,
__Janko
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