Python: Extract the nth element from a given list of tuples
Extract N-th Element from Tuples
Write a Python program to extract the nth element from a given list of tuples.
Visual Presentation:
Sample Solution:
Python Code:
# Define a function 'extract_nth_element' that extracts the nth element from each tuple in a list
def extract_nth_element(test_list, n):
# Use list comprehension to extract the nth element (index n) from each tuple in the list
result = [x[n] for x in test_list]
return result
# Create a list 'students' containing tuples with student names and their exam scores
students = [('Greyson Fulton', 98, 99), ('Brady Kent', 97, 96), ('Wyatt Knott', 91, 94), ('Beau Turnbull', 94, 98)]
# Print a message indicating the original list
print("Original list:")
# Print the contents of the 'students' list
print(students)
# Set the value of 'n' to 0
n = 0
# Print a message indicating the extraction of the 0th element from each tuple
print("\nExtract nth element (n =", n, ") from the said list of tuples:")
# Call the 'extract_nth_element' function with 'students' and 'n', then print the result
print(extract_nth_element(students, n))
# Set the value of 'n' to 2
n = 2
# Print a message indicating the extraction of the 2nd element from each tuple
print("\nExtract nth element (n =", n, ") from the said list of tuples:")
# Call the 'extract_nth_element' function with 'students' and 'n', then print the result
print(extract_nth_element(students, n))
Sample Output:
Original list: [('Greyson Fulton', 98, 99), ('Brady Kent', 97, 96), ('Wyatt Knott', 91, 94), ('Beau Turnbull', 94, 98)] Extract nth element ( n = 0 ) from the said list of tuples: ['Greyson Fulton', 'Brady Kent', 'Wyatt Knott', 'Beau Turnbull'] Extract nth element ( n = 2 ) from the said list of tuples: [99, 96, 94, 98]
Flowchart:
Python Code Editor:
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