Python: Remove all elements from a given list present in another list using lambda
Python Lambda: Exercise-38 with Solution
Write a Python program to remove all elements from a given list present in another list using lambda.
Python Code :
def index_on_inner_list(list1, list2): result = list(filter(lambda x: x not in list2, list1)) return result list1 = [1,2,3,4,5,6,7,8,9,10] list2 = [2,4,6,8] print("Original lists:") print("list1:", list1) print("list2:", list2) print("\nRemove all elements from 'list1' present in 'list2:") print(index_on_inner_list(list1, list2))
Original lists: list1: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] list2: [2, 4, 6, 8] Remove all elements from 'list1' present in 'list2: [1, 3, 5, 7, 9, 10]
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Previous: Write a Python program to sort a list of lists by a given index of the inner list using lambda.
Next: Write a Python program to find the elements of a given list of strings that contain specific substring using lambda.
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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())
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)
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