rotating a nxm matrix by 90 degree in python code example

Example: rotate matrix 90 degrees clockwise in python

#The program defines the square matrix 90 degrees clockwise direction.
m,n  = map(int,input().split())
#m,n are the number of rows and columns.
#m = int(input('rows'))
l = []
for i in range(m):
	x = list(map(int,input().split()))  #for taking the  rows a time and split it append to an empty list		
	l.append()
for i in range(m):
	for j in range(m-1,-1,-1):
		print(l[j][i],end=' ')
	print(end='\n')