When it is required to extract element from ranges in a list, a simple iteration and the ‘extend’ method is used.
Example
Below is a demonstration of the same −
my_list = [14, 55, 41, 14, 17, 59, 22, 25, 14, 69, 42, 66, 99, 19]
print("The list is :")
print(my_list)
range_list = [(12, 14), (17, 18), (22, 28)]
print("The list is :")
print(range_list)
my_result = []
for element in range_list:
my_result.extend(my_list[element[0] : element[1] + 1])
print("The result is :")
print(my_result)Output
The list is : [14, 55, 41, 14, 17, 59, 22, 25, 14, 69, 42, 66, 99, 19] The list is : [(12, 14), (17, 18), (22, 28)] The result is : [99, 19]
Explanation
A list of integers is defined and is displayed on the console.
Another list of tuple is defined and displayed on the console.
An empty list is defined.
The list is iterated over, and the zeroth element, and first element incremented 1 is added to the empty list.
This is done using the ‘extend’ method.
This is the output that is displayed on the console.