Combining 2 lists in python

Question

I have 2 lists each of equal size and am interested to combine these two lists and write it into a file.

alist=[1,2,3,5] 
blist=[2,3,4,5] 

--the resulting list should be like [(1,2), (2,3), (3,4), (5,5)]

After that i want that to be written it to a file. How can i accomplish this?

Answer 1

# combine the lists
zipped = zip(alist, blist)

# write to a file (in append mode)
file = open("filename", 'a') 
for item in zipped:
    file.write("%d, %d
" % item) 
file.close()

The resulting output in the file will be:

 1,2
 2,3
 3,4
 5,5