I want to merge two list in a single list

Question

Create a list Score that contains the GPA of a student in 3 semesters. Create 3 such students and add them in new list call Students with the name of the student with it as well. Take input from user. for example :

input:

list1 = ['ali','Mudassir','Hasssan']  
list2 = [['3.4','3.5','3.5'],['3.2','3.5','3.6'],['3.4','3.7','3.1']]

output:

[['ali', ['3.3', '3.2', '3.6']], 
 ['Mudassir', ['3.2', '3', '3.6']], 
 ['Hassan', ['3.7', '3.2', '3.9']]]

any suggestion and help will be beneficial for me please give on comment. Thanks in advance

Zip will combine to form a tuple instead of list, i.e., `('ali', ['3.3', '3.2', '3.6'])` and so on. But offcourse you can do that too. — Anurag Dhadse, Feb 20 '22 at 06:03
Where is that output coming from? None of the number sequences match. — wjandrea, Feb 20 '22 at 23:39

score 8 · Answer 1 · edited May 30 '22 at 14:30

8

No need to use a loop, use zip:

out = list(zip(list1, list2))

Output:

[('ali', ['3.4', '3.5', '3.5']),
 ('Mudassir', ['3.2', '3.5', '3.6']),
 ('Hasssan', ['3.4', '3.7', '3.1'])]

Or for lists:

out = list(map(list, zip(list1, list2))

Output:

[['ali', ['3.4', '3.5', '3.5']],
 ['Mudassir', ['3.2', '3.5', '3.6']],
 ['Hasssan', ['3.4', '3.7', '3.1']]]

edited May 30 '22 at 14:30

Sunderam Dubey

2,294
9
12
22

answered Feb 20 '22 at 06:06

mozway

81,317
8
19
49

score 1 · Accepted Answer · answered Feb 20 '22 at 05:58

This will do:

list1 = ['ali','Mudassir','Hasssan']  
list2 = [['3.4','3.5','3.5'],['3.2','3.5','3.6'],['3.4','3.7','3.1']]

l = []
for i, item in enumerate(list1):
  l.append([item, list2[i]])

print(l)

output:

[['ali', ['3.4', '3.5', '3.5']], ['Mudassir', ['3.2', '3.5', '3.6']], ['Hasssan', ['3.4', '3.7', '3.1']]]

Faraaz Kurawle · Answer 3 · 2022-02-25T19:46:17.393

0

Here's a one liner:

l=[[j,list2[i]] for i,j in enumerate(list1)]

print(l)

Explantion:

It's a list comprehension.
Just creating a new list [j,list2[i]] which first adds first index of list1 and then compiles it with the first index of list2 and then the final value is added to the list l, using a for loop.

edited Feb 25 '22 at 19:46

answered Feb 20 '22 at 06:11

Faraaz Kurawle

923
3
22

score -2 · Answer 4 · edited Feb 20 '22 at 08:01

-2

list1 = ['ali','Mudassir','Hasssan']
list2 = [['3.4','3.5','3.5'],['3.2','3.5','3.6'],['3.4','3.7','3.1']] 

output = [[j, list2[i]] for i, j in enumerate(list1)]

print(output)

edited Feb 20 '22 at 08:01

Seraph

73
8

answered Feb 20 '22 at 06:04

Sniper1999

65
9

I want to merge two list in a single list

4 Answers4