Answer
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Work Step by Step
# 11.27 (Column sorting) Implement the following function to sort the columns in a twodimensional
# list. A new list is returned and the original list is intact.
# def sortColumns(m):
# Write a test program that prompts the user to enter a 3 * 3matrix of numbers and
# displays a new column-sorted matrix.
def sortColumns(m):
m1 = [[x[i] for x in m] for i in range(len(m))]
for col in m1:
col.sort()
m1 = [[x[i] for x in m1] for i in range(len(m1))]
return m1
print('Enter a 3-by-3 matrix row by row: ')
m = []
for i in range(3):
m.append(input().split())
print('The column-sorted list is ')
res = sortColumns(m)
for r in res:
for v in r:
print(v, end=' ')
print()
