Python: Extract the nth element from a given list of tuples
Python List: Exercise - 114 with Solution
Write a Python program to extract the nth element from a given list of tuples.
Sample Solution:
Python Code:
def extract_nth_element(test_list, n):
result = [x[n] for x in test_list]
return result
students = [('Greyson Fulton', 98, 99), ('Brady Kent', 97, 96), ('Wyatt Knott', 91, 94), ('Beau Turnbull', 94, 98)]
print ("Original list:")
print(students)
n = 0
print("\nExtract nth element ( n =",n,") from the said list of tuples:")
print(extract_nth_element(students, n))
n = 2
print("\nExtract nth element ( n =",n,") from the said list of tuples:")
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]
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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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