Write a Python Program to Retain records with N occurrences of K

The program is a python script that filters a list of tuples based on the count of a specific element in each tuple.

Here's what the program does in detail:

A list of tuples "val" is defined with 4 tuples.
The original list "val" is printed using the "print()" function.
The variable "K" is defined with a value of 5 and the variable "N" is defined with a value of 2.
A list comprehension is used to create a new list "res" which contains only the tuples that meet a specific condition.
The condition used in the list comprehension checks if the count of the element "K" in a tuple is equal to the value of "N". This check is done using the "count()" method which returns the number of occurrences of a specified element in a tuple. If the count is equal to "N", the tuple is added to the "res" list.
The final list "res" is printed after the removal of the tuples that do not contain the specified count of the element "K".

val = [(4, 5, 6, 5, 4), (4, 5, 3), (5, 5, 2), (3, 4, 9)]
print(val)
K = 5
N = 2
res = [e for e in val if e.count(K) == N]
 
print(res)

[(4, 5, 6, 5, 4), (4, 5, 3), (5, 5, 2), (3, 4, 9)]
[(4, 5, 6, 5, 4), (5, 5, 2)]