Python - Extract ith element of K key's value

Python – Extract ith element of K key’s value

Last Updated : 29 Aug, 2020

Given a dictonary, extract ith element of K key’s value list.

Input : test_dict = {‘Gfg’ : [6, 7, 3, 1], ‘is’ : [9, 1, 4], ‘best’ : [10, 7, 4]}, K = ‘Gfg’, i = 1
Output : 7
Explanation : 1st index of ‘Gfg”s value is 7.
Input : test_dict = {‘Gfg’ : [6, 7, 3, 1], ‘is’ : [9, 1, 4], ‘best’ : [10, 7, 4]}, K = ‘best’, i = 0
Output : 10
Explanation : 0th index of ‘best”s value is 10.

Method : Using + get()

This is one of the ways in which this task can be performed. In this, we extract the key’s value using get() and then value is extracted after checking for K being less than list length.

Python3

# Python3 code to demonstrate working of 
# Extract ith element of K key's value
# Using get()
  
# initializing dictionary
test_dict = {'Gfg' : [6, 7, 3, 1], 
             'is' : [9, 1, 4],
             'best' : [10, 7, 4]} 
  
# printing original dictionary
print("The original dictionary is : " + str(test_dict))
  
# initializing K 
K = 'Gfg'
  
# initializing i 
i = 2
  
# using get() to get the required value 
temp = test_dict.get(K)
res = None
# checking for non empty dict and length constraints
if temp and len(temp) >= i:   
        res = temp[i] 
          
# printing result 
print("The extracted value : " + str(res)) 

Output

The original dictionary is : {'Gfg': [6, 7, 3, 1], 'is': [9, 1, 4], 'best': [10, 7, 4]}
The extracted value : 3

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