Python: Extract specified number of elements from a given list, which follows each other continuously
Python List: Exercise - 103 with Solution
Write a Python program to extract specified number of elements from a given list, which follows each other continuously.
Sample Solution:
Python Code:
from itertools import groupby
def extract_elements(nums, n):
result = [i for i, j in groupby(nums) if len(list(j)) == n]
return result
nums1 = [1, 1, 3, 4, 4, 5, 6, 7]
n = 2
print("Original list:")
print(nums1)
print("Extract 2 number of elements from the said list which follows each other continuously:")
print(extract_elements(nums1, n))
nums2 = [0, 1, 2, 3, 4, 4, 4, 4, 5, 7]
n = 4
print("Original lists:")
print(nums2)
print("Extract 4 number of elements from the said list which follows each other continuously:")
print(extract_elements(nums2, n))
Sample Output:
Original list: [1, 1, 3, 4, 4, 5, 6, 7] Extract 2 number of elements from the said list which follows each other continuously: [1, 4] Original lists: [0, 1, 2, 3, 4, 4, 4, 4, 5, 7] Extract 4 number of elements from the said list which follows each other continuously: [4]
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Python: Tips of the Day
Given a predicate function, fn, and a prop string, this curried function will then take an object to inspect by calling the property and passing it to the predicate:
Example:
def tips_check_prop(fn, prop): return lambda obj: fn(obj[prop]) check_age = tips_check_prop(lambda x: x >= 25, 'age') user = {'name': 'Owen', 'age': 25} print(check_age(user))
Output:
True
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