Python program to find maximum value in record list as tuple attribute

Method 1:

A way to find the solution is by using list comprehension and to find the maximum values out of all elements of the array, we will use the max() method. This will iterate through each element of the array and find the maximum of the values of the array.

# Python program to find the Maximum value 
# in record list as tuple attribute

# initializing and printing the list of tuples
tupleList = [('scala', [7, 2, 9]), ('Java', [1, 5, 2]), ('Python', [9, 3, 1])]
print("The original list : " + str(tupleList))
  
# finding maximum value in record list as tuple attribute
maxList = [(key, max(recordList)) for key, recordList in tupleList]
  
# printing maximum tuple list
print("The list tuple attribute maximum is : " + str(maxList))

Output:

The original list : [('scala', [7, 2, 9]), ('Java', [1, 5, 2]), ('Python', [9, 3, 1])]
The list tuple attribute maximum is : [('scala', 9), ('Java', 5), ('Python', 9)]

Method 2:

Another method to solve the problem is by using a map() to map values passing the lambda function using the max() function to find the maximum of the record.

# Python program to find the Maximum value 
# in record list as tuple attribute

# initializing and printing the list of tuples
tupleList = [('scala', [7, 2, 9]), ('Java', [1, 5, 2]), ('Python', [9, 3, 1])]
print("The original list : " + str(tupleList))
  
# finding maximum value in record list as tuple attribute
maxList = list(map(lambda ele: (ele[0], max(ele[1])), tupleList))
  
# printing maximum tuple list
print("The list tuple attribute maximum is : " + str(maxList))

Output:

The original list : [('scala', [7, 2, 9]), ('Java', [1, 5, 2]), ('Python', [9, 3, 1])]
The list tuple attribute maximum is : [('scala', 9), ('Java', 5), ('Python', 9)]