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Python: Add three lists using map function and lambda

Python map: Exercise-2 with Solution

Write a Python program to add three given lists using Python map and lambda.

Sample Solution:

Python Code :

nums1 = [1, 2, 3] 
nums2 = [4, 5, 6] 
nums3 = [7, 8, 9] 
print("Original list: ")
print(nums1)  
print(nums2)  
print(nums3)  
result = map(lambda x, y, z: x + y + z, nums1, nums2, nums3) 
print("\nNew list after adding above three lists:")
print(list(result))

Sample Output:

Original list: 
[1, 2, 3]
[4, 5, 6]
[7, 8, 9]

New list after adding above three lists:
[12, 15, 18]

Python Code Editor:

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Previous: Write a Python program to triple all numbers of a given list of integers. Use Python map.
Next: Write a Python program to listify the list of given strings individually using Python map.

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Python: Tips of the Day

Merging two dicts in Python 3.5+ with a single expression

Example:

# How to merge two dictionaries
# in Python 3.5+

x = {'p': 1, 'q': 3}
y = {'q': 5, 'r': 8}

z = {**x, **y}

z
{'r': 4, 'p': 1, 'q': 3}

z = dict(x, **y)
print(z)

Output:

{'p': 1, 'q': 5, 'r': 8}