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Python: Add two given lists using map and lambda

Python Lambda: Exercise-15 with Solution

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

Sample Solution:

Python Code :

nums1 = [1, 2, 3]
nums2 = [4, 5, 6]
print("Original list:")
print(nums1)
print(nums2)
result = map(lambda x, y: x + y, nums1, nums2)
print("\nResult: after adding two list")
print(list(result))

Sample Output:

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

Result: after adding two list
[5, 7, 9]

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Previous: Write a Python program to find the values of length six in a given list using Lambda.
Next: Write a Python program to find the second lowest grade of any student(s) from the given names and grades of each student using lists and lambda.

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Python: Tips of the Day

Python: Cache results with decorators

There is a great way to cache functions with decorators in Python. Caching will help save time and precious resources when there is an expensive function at hand.

Implementation is easy, just import lru_cache from functools library and decorate your function using @lru_cache.

from functools import lru_cache

@lru_cache(maxsize=None)
def fibo(a):
    if a <= 1:
        return a
    else:
        return fibo(a-1) + fibo(a-2)

for i in range(20):
    print(fibo(i), end="|")

print("\n\n", fibo.cache_info())

Output:

0|1|1|2|3|5|8|13|21|34|55|89|144|233|377|610|987|1597|2584|4181|

 CacheInfo(hits=36, misses=20, maxsize=None, currsize=20)