Python Answers

determine what's wrong in this code. why x is not defined?

x.field_names = [ "City name", "Area", "Population", "Annual Rainfall"]

list1 = [

["Adelaide", 1295, 1158259, 600.5],

["Brisbane'', 5905, 1857594, 1146, 4],

[ "Darwin", 112, 120900, 1714, 7],

["Hobart", 135, 20556, 619.5],

["Sydney", 2058, 4336374, 1214.8],

["Melbourne", 1566, 3806092, 646.9],

["Perth", 5386, 1554769, 869.4]]

for i in list1:

x.add_row(i)

Accessing Nested Lists

Write a program to create a list with the values at the given Indexes.

Sample Input 1

3

1  2

0 3

0 1

Sample Output 1

['hockey','grapes','banana']

Nested List Indexing

Write a program to print the index of the given number N in the list of tuples.

Sample Input 1 

4

Sample output 1

0 1 

Sample Input 2

15

Sample output 2

1 1

List of Lists to List of Tuples

Write a program to convert the list of lists to a list of tuples.

Sample Input1

3

1  2 3 4 

10  20 30

5 10 15 20

Sample Output 1

[(1,2,3,4), (10,20,30), (5,10,15,20)]

Remove N in all Tuples

Write a program to remove the given number N in all the tuples if it present.

Sample Input 1

3

Sample output 1

[(1,2,4,5,6), (2,4,6,8), (1,5,7)]

List of Unique Tuples

Write a program to print the lists which contain the unique elements in the given list of lists.

Sample Input 1

3

1  2  3

5 10 15

10 20 10 30

Sample output 1

[[1,2,3],[5,10,15]]

Character Frequency

Write a program to compute the frequency of characters other than space.

Sample Input 1

Pop up

Sample Output 1

o: 1

p: 3

u: 1