Skip to content
Related Articles

Related Articles

Python – Convert each list element to key-value pair
  • Last Updated : 12 Nov, 2020

Given list of elements, convert each element to a key-value pair dictionary, dividing digits equally.

Input : test_list = [2323, 82, 129388, 234, 95] 
Output : {23: 23, 8: 2, 129: 388, 2: 34, 9: 5} 
Explanation : Digits distributed equally to keys and values.

Input : test_list = [2323, 82, 129388] 
Output : {23: 23, 8: 2, 129: 388} 
Explanation : Digits distributed equally to keys and values. 
 

Approach: Using list slicing + loop

In this, we form key-value pair by getting the sliced values from each element by dividing by half the digits for keys and values.



Python3




# Python3 code to demonstrate working of
# Convert each list element to key-value pair
# Using loop + list slicing
  
# initializing list
test_list = [2323, 82, 129388, 234, 95]
  
# printing original list
print("The original list is : " + str(test_list))
  
res = dict()
for ele in test_list:
  
    # constructing key and values
    mid_idx = len(str(ele)) // 2
    key = int(str(ele)[:mid_idx])
    val = int(str(ele)[mid_idx:])
  
    # item assignment
    res[key] = val
  
# printing result
print("Constructed Dictionary : " + str(res))
Output
The original list is : [2323, 82, 129388, 234, 95]
Constructed Dictionary : {23: 23, 8: 2, 129: 388, 2: 34, 9: 5}

 Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.  

To begin with, your interview preparations Enhance your Data Structures concepts with the Python DS Course. And to begin with your Machine Learning Journey, join the Machine Learning – Basic Level Course

My Personal Notes arrow_drop_up
Recommended Articles
Page :