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Python: Find the nested lists elements, which are present in another list using lambda

Python Lambda: Exercise-40 with Solution

Write a Python program to find the nested lists elements, which are present in another list using lambda.

Sample Solution:

Python Code :

def intersection_nested_lists(l1, l2):
    result = [list(filter(lambda x: x in l1, sublist)) for sublist in l2]
    return result
nums1 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14]
nums2 = [[12, 18, 23, 25, 45], [7, 11, 19, 24, 28], [1, 5, 8, 18, 15, 16]]
print("\nOriginal lists:")
print(nums1)
print(nums2)
print("\nIntersection of said nested lists:")
print(intersection_nested_lists(nums1, nums2))

Sample Output:

Original lists:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14]
[[12, 18, 23, 25, 45], [7, 11, 19, 24, 28], [1, 5, 8, 18, 15, 16]]

Intersection of said nested lists:
[[12], [7, 11], [1, 5, 8]]

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Next: Write a Python program to reverse strings in a given list of string values using lambda.

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Python: Tips of the Day

Returns a flat list of all the keys in a flat dictionary

Example:

def tips_keys(flat_dict):
  return list(flat_dict.keys())

ages = {
  "Jack": 15,
  "Owen": 21,
  "Wyatt": 11,
}
print(tips_keys(ages))

Output:

['Jack', 'Owen', 'Wyatt']