Python program to sort a list according to the second element in the sublist.

In this article, we will sort a list according to the second element in the sublist. Let?s say we have the following list ?

[['jack', 50], ['antony', 20], ['jones', 87], ['gary', 70], ['tom', 90], ['sam', 110], ['warner', 65]]

The output should be the following i.e. sorted according to the second element ?

[['antony', 20], ['jack', 50], ['warner', 65], ['gary', 70], ['jones', 87], ['tom', 90], ['sam', 110]]

Python program to sort a list according to the second element in the sublist using the sort() method

Example

# Custom Function
def SortFunc(sub_li):
	sub_li.sort(key = lambda x: x[1])
	return sub_li
	
# Driver Code
subList =[['jack', 50], ['antony', 20], ['jones', 87], ['gary', 70], ['tom', 90], ['sam', 110], ['warner', 65]]
print("Unsorted List = \n",subList)
print("\nSorted List according to the second elemnt in the sublist =\n ",SortFunc(subList))

Output

Unsorted List = 
[['jack', 50], ['antony', 20], ['jones', 87], ['gary', 70], ['tom', 90], ['sam', 110], ['warner', 65]]

Sorted List according to the second elemnt in the sublist =
  [['antony', 20], ['jack', 50], ['warner', 65], ['gary', 70], ['jones', 87], ['tom', 90], ['sam', 110]]

Python program to sort a list according to the second element in the sublist using Bubble Sort

Example

# Custom Function
def SortFunc(subList):
	l = len(subList)
	for i in range(0, l):
		for j in range(0, l-i-1):
			if (subList[j][1] > subList[j + 1][1]):
				temp = subList[j]
				subList[j]= subList[j + 1]
				subList[j + 1]= temp
	return subList
# Driver Code
subList =[['jack', 50], ['antony', 20], ['jones', 87], ['gary', 70], ['tom', 90], ['sam', 110], ['warner', 65]]
print("Unsorted List = \n",subList)
print("\nSorted List according to the second elemnt in the sublist =\n ",SortFunc(subList))

Output

Unsorted List = 
 [['jack', 50], ['antony', 20], ['jones', 87], ['gary', 70], ['tom', 90], ['sam', 110], ['warner', 65]]

Sorted List according to the second elemnt in the sublist =
 [['antony', 20], ['jack', 50], ['warner', 65], ['gary', 70], ['jones', 87], ['tom', 90], ['sam', 110]]

Python program to sort a list according to the second element in the sublist using the sorted() method

Example

# Custom Function
def SortFunc(subList):

	return(sorted(subList, key = lambda a: a[1]))

# Driver Code
subList =[['jack', 50], ['antony', 20], ['jones', 87], ['gary', 70], ['tom', 90], ['sam', 110], ['warner', 65]]
print("Unsorted List = \n",subList)
print("\nSorted List according to the second elemnt in the sublist =\n ",SortFunc(subList))

Output

Unsorted List = 
 [['jack', 50], ['antony', 20], ['jones', 87], ['gary', 70], ['tom', 90], ['sam', 110], ['warner', 65]]
Sorted List according to the second elemnt in the sublist =
  [['antony', 20], ['jack', 50], ['warner', 65], ['gary', 70], ['jones', 87], ['tom', 90], ['sam', 110]]