[SOLVED] Eof error

Question

I am trying to input a matrix of arbitrary length(in my case: 1 2 \n 3 4) and receive "EOFError: EOF when reading a line". What's wrong?
matrix = []
while True:
s = input()
if not s:
break
matrix.append(s)
print(matrix)

Answer 1

matrix = []
while True:
try:
s = input()
except :
break
matrix.append(s)
print(matrix)
At last, You need to press empty enter at least to your program work without error.. And this is alternative.. It works as you expecting....

Answer 2

You need to provide all the inputs on sololearn at once since it's not interactive

Answer 3

Thank you!