Python program to sort tuples in increasing order by any key.

Given a tuple, our task is to sort the list of tuples in increasing order by any key in a tuple. We need to sort them according to any given key.to do this here we use sorted() function where we sort them using key=last and store last as the key index according to which we have to sort the given tuples.

Example

Input: A = [(2, 55), (1, 20), (4, 40), (2, 30)] 
            k = 0
Output: [(1, 20), (2, 30), (2, 55), (4, 40)]

Explanation

Increasing Sorted order using the 0th index key.

Algorithm

Step 1:  get the last key value.
Step 2: next we use inbuilt function sorted () method where we sort them using key=last and store last as the key index according to which we have to sort the given tuples.
Step 3: display sorted list.

Example Code

# Python program to sort a list of tuples  
# in increasing order by any key 
# get the last key. 
def data(n): 
   return n[k]   
# function to sort the tuple    
def tuplesort(tup): 
   # We pass used defined function last 
   # As a parameter.  
   return sorted(tup, key = data) 
# Driver code   
a = [(230, 456, 120), (205, 414, 39), (89, 410, 213)] 
k = int(input("Enter the Index ::>"))
print("Sorted:"), 
print(tuplesort(a)) 

Output

Enter the Index ::>2
Sorted:
[(205, 414, 39), (230, 456, 120), (89, 410, 213)]

Karthikeya Boyini

Published on 25-Sep-2018 09:26:13

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