Skip to content
Related Articles

Related Articles

Improve Article
Save Article
Like Article

Python | Maximum element in tuple list

  • Last Updated : 21 Nov, 2019

Sometimes, while working with data in form of records, we can have a problem in which we need to find the maximum element of all the records received. This is a very common application that can occur in Data Science domain. Let’s discuss certain ways in which this task can be performed.

Method #1 : Using max() + generator expression
This is the most basic method to achieve solution to this task. In this, we iterate over whole nested lists using generator expression and get the maximum element using max().

 Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.  

To begin with, your interview preparations Enhance your Data Structures concepts with the Python DS Course. And to begin with your Machine Learning Journey, join the Machine Learning - Basic Level Course




# Python3 code to demonstrate working of
# Maximum element in tuple list
# using max() + generator expression
  
# initialize list 
test_list = [(2, 4), (6, 7), (5, 1), (6, 10), (8, 7)]
  
# printing original list 
print("The original list : " + str(test_list))
  
# Maximum element in tuple list
# using max() + generator expression
res = max(int(j) for i in test_list for j in i)
  
# printing result
print("The Maximum element of list is : " + str(res))
Output :



The original list : [(2, 4), (6, 7), (5, 1), (6, 10), (8, 7)]
The Maximum element of list is : 10

 

Method #2 : Using max() + map() + chain.from_iterable()
The combination of above methods can also be used to perform this task. In this, the extension of finding maximum is done by combination of map() and from_iterable().




# Python3 code to demonstrate working of
# Maximum element in tuple list
# using max() + map() + chain.from_iterable()
from itertools import chain
  
# initialize list 
test_list = [(2, 4), (6, 7), (5, 1), (6, 10), (8, 7)]
  
# printing original list 
print("The original list : " + str(test_list))
  
# Maximum element in tuple list
# using max() + map() + chain.from_iterable()
res = max(map(int, chain.from_iterable(test_list)))
  
# printing result
print("The Maximum element of list is : " + str(res))
Output :
The original list : [(2, 4), (6, 7), (5, 1), (6, 10), (8, 7)]
The Maximum element of list is : 10



My Personal Notes arrow_drop_up
Recommended Articles
Page :