CODEWITHSUNDEEP
python
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Reputation: 213

Printing output based of two list

I have a list containing string elements:

movielst = ['A WALK,DRAGONBALL', 'JAMES BOND,MISSION']

and another list that contains integer values:

userlst = [[1,20],[6,7]]

I'm planning to print the output based off both list where the first element in movielst corresponds to the first list in userlst and so on.

Output to get:

Movies: A WALK,DRAGONBALL
Users: 1,20

Movies: JAMES BOND,MISSION
Users: 6,7

I wrote

for j in range(len(userlst)-1):
    for i in movielst:
        print("Movies: " + str(i))
        print("Users: " + str(userlst[j]))

But I'm getting:

Movies: A WALK,DRAGONBALL
Users: 1,20

Movies: JAMES BOND,MISSION
Users: 1,20               #should be 6,7

How do i print the output based off both lists in parallel?

Upvotes: 0

Views: 51

Answers (5)

Aaditya Ura
Aaditya Ura

Reputation: 12689

You can try this:

movielst = ['A WALK,DRAGONBALL', 'JAMES BOND,MISSION']

userlst = [[1,20],[6,7]]

for i in zip(movielst,userlst):
    print("Movies : {}".format(i[0]))
    print("Users : {} {}".format(*i[1]))

output:

Movies : A WALK,DRAGONBALL
Users : 1 20
Movies : JAMES BOND,MISSION
Users : 6 7

Upvotes: 0

dawg
dawg

Reputation: 104102

Use zip, join, and format with a comprehension:

>>> print '\n'.join("Movies: {}\nUsers: {}".format(x,y) for x,y in zip(movielst,userlst))
Movies: A WALK,DRAGONBALL
Users: [1, 20]
Movies: JAMES BOND,MISSION
Users: [6, 7]

Or, as stated in comments and if you want double spaced:

>>> print '\n\n'.join("Movies: {}\nUsers: {}".format(*z) for z in zip(movielst,userlst))
Movies: A WALK,DRAGONBALL
Users: [1, 20]

Movies: JAMES BOND,MISSION
Users: [6, 7]

Upvotes: 1

Andrew Zacharakis
Andrew Zacharakis

Reputation: 350

The j in the first loop will not increase until 'i' traverse through every element, so j will print 1.20 both times. For traversing through both lists at the same time you can use one for loop. 

for j in range(len(userlst)):
    print("Movies: " + str(movielst[j]))
    print("Users: " + str(userlst[j]))

The output will be :

Movies: A WALK,DRAGONBALL  
Users: [1, 20]  
Movies: JAMES BOND,MISSION
Users: [6, 7]

Upvotes: 0

Rakesh
Rakesh

Reputation: 82805

You can use zip

Ex:

movielst = ['A WALK,DRAGONBALL', 'JAMES BOND,MISSION']
userlst = [[1,20],[6,7]]
for i in zip(movielst, userlst):
    print("Movies: {}".format(i[0]))
    print("Users: {}".format(", ".join(map(str, i[1]))))

Output:

Movies: A WALK,DRAGONBALL
Users: 1, 20
Movies: JAMES BOND,MISSION
Users: 6, 7

Note:

  1. I have used map to convert int to string for userlst
  2. join to concat the element in userlst to your required format.

Upvotes: 1

Nathan
Nathan

Reputation: 3648

If you know both lists are the same length:

for i in range(len(movielst)):
    print("Movies: {}".format(str(movielst[i]))
    print("Users: {}".format(str(userlst[i])))
    print(' ')

This way you loop over both loops and print the same index of both lists in the same loop.

The .format works as following:

print('text {} text {}'.format(<first thing>, <second thing>))

outputs:

text <first thing> text <second thing>

Upvotes: 0

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