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Python – Extract Kth element of every Nth tuple in List
When it is required to extract ‘K’th element of every ‘N’th tuple in a list, a simple iteration and the ‘append’ method is used.
Example
Below is a demonstration of the same −
my_list = [(54, 51, 23), (73, 24, 47), (24, 33, 72), (64, 27, 18), (63, 24, 67), (12, 25, 77), (31, 39, 80),(33, 55, 78)]
print("The list is :")
print(my_list)
K = 1
print("The value of K is :")
print(K)
N = 3
print("The value of N is :")
print(N)
my_result = []
for index in range(0, len(my_list), N):
my_result.append(my_list[index][K])
print("The result is :")
print(my_result)Output
The list is : [(54, 51, 23), (73, 24, 47), (24, 33, 72), (64, 27, 18), (63, 24, 67), (12, 25, 77), (31, 39, 80), (33, 55, 78)] The value of K is : 1 The value of N is : 3 The result is : [51, 27, 39]
Explanation
A list of tuple is defined and is displayed on the console.
The values for K and N are defined and are displayed on the console.
An empty list is defined.
The list is iterated over, and the element at a specific index at ‘K’ is appended to the empty list
This is the output that is displayed on the console.
Updated on: 08-Sep-2021
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