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def rotate_clockwise(matrix):

new = []

for row in reversed(matrix):

for i, elem in enumerate(row):

try:

new[i].append(elem)

except IndexError:

new.insert(i, [])

new[i].append(elem)

return new

def rotate_counterclockwise(matrix):

new = []

for row in matrix:

for i, elem in enumerate(reversed(row)):

try:

new[i].append(elem)

except IndexError:

new.insert(i, [])

new[i].append(elem)

return new

def top_left_invert(matrix):

new = []

for row in matrix:

for i, elem in enumerate(row):

try:

new[i].append(elem)

except IndexError:

new.insert(i, [])

new[i].append(elem)

return new

def bottom_left_invert(matrix):

new = []

for row in reversed(matrix):

for i, elem in enumerate(reversed(row)):

try:

new[i].append(elem)

except IndexError:

new.insert(i, [])

new[i].append(elem)

return new

if __name__ == '__main__':

def print_matrix(matrix, name):

print('{}:\n['.format(name))

for row in matrix:

print(' {}'.format(row))

print(']\n')

matrix = [

[1, 2, 3],

[4, 5, 6],

[7, 8, 9],

]

print_matrix(matrix, 'initial')

print_matrix(rotate_clockwise(matrix), 'clockwise')

print_matrix(rotate_counterclockwise(matrix), 'counterclockwise')

print_matrix(top_left_invert(matrix), 'top left invert')

print_matrix(bottom_left_invert(matrix), 'bottom left invert')