Python: Extract a given number of randomly selected elements from a given list
Python List: Exercise - 81 with Solution
Write a Python program to extract a given number of randomly selected elements from a given list.
Sample Solution:
Python Code:
import random
def random_select_nums(n_list, n):
return random.sample(n_list, n)
n_list = [1,1,2,3,4,4,5,1]
print("Original list:")
print(n_list)
selec_nums = 3
result = random_select_nums(n_list, selec_nums)
print("\nSelected 3 random numbers of the above list:")
print(result)
Sample Output:
Original list: [1, 1, 2, 3, 4, 4, 5, 1] Selected 3 random numbers of the above list: [4, 4, 1]
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Previous: Write a Python program to insert an element at a specified position into a given list.
Next: Write a Python program to generate the combinations of n distinct objects taken from the elements of a given list.
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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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