Question

python

11.47 Lab Exam 3 - Column Sums This section has been set as optional by your instructor. Write a Python function column_sums() that takes a nested list as a parameter, and returns a single list where each entry corresponds to the sum of the list's column contents. Sample Function Call: nested [[1, 2, 3], [1, 2, 31, [1, 2 ]] column sums (nested) Expected Return: [3, 6, 6]

Answer 1

#program to return the sum of list column contents

mylist=[[1,2,3],[1,2,3],[1,2]] #sample Nested list
li=[]    #creating empty list in which the sum of column content is to be appended

#Begning of the function

def column_sums(mylist):
for i in range(0,len(mylist),1): #iterating over nested list
li.append(sum(mylist[i]))    #appending the sum of column content to a new list
li.sort()     #sorting the list in ascending order to get he desired output
return li #return the single list

#printing the list and calling the function column_sums

print(column_sums(mylist))