﻿ Python: Extract the nth element from a given list of tuples using lambda - w3resource

# Python: Extract the nth element from a given list of tuples using lambda

## Python Lambda: Exercise-36 with Solution

Write a Python program to extract the nth element from a given list of tuples using lambda.

Sample Solution:

Python Code :

``````def extract_nth_element(test_list, n):
result = list(map (lambda x:(x[n]), 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

Returns all the elements of a list except the last one

Example:

```def tips_initial(lst):
return lst[0:-1]

print(tips_initial([1, 2, 3, 4]))
```

Output:

```[1, 2, 3]
```