get array values in python

Question

I have the values arr1 as 25,26 and arr2 values as A,B

Its always that the number of values in arr1 and arr2 are equal

My question is that

          for i in arr1.split(","):
                print i //prints 25 and 26

is it not possible to get the values of arr2 in the same loop or should another loop be written only for this purpose.Basically the idea is that map the values of arr1 and arr2

Answer 1

You can use zip() function:

for zipped in zip(arr1.split(",") , arr2.split(",")):
    someDictionary[zipped[0]] = zipped[1]

zip() creates tuple for each pair of items in collections, then you map one to another. If your 'arrays' have diffrent length, you can use map():

a = [1,3,4]
b = [3,4]
print map(None, a, b)
[(1, 3), (3, 4), (4, None)]

Answer 2

You should be able to do this with python's enumerate function. This lets you loop through a list and get both its numerical index and its value:

array1 = arr1.split(',')
array2 = arr2.split(',')
for i,value in enumerate(array1):
   print value, array2[i]

This produces:

25 A
26 B