Python Program to Store a Sparse Matrix using Dictionary

matrix=[[0,0,0,1,0],
[2,0,0,0,3],
[0,0,0,4,0]]
Dict={}
print("Sparse Matrix")
for i in range(len(matrix)):
print("\n")
for j in range(len(matrix[i])):
print(matrx[i][j], end=' ')
if matrix[i][j]!=0:
Dict[i,j]=matrix[i][j]
print("Sparse Matrix can be represented as Dictionary:")
print(Dict)