[Python] Writing a "Chessboard" function in Python that prints out requested length of binary

I have an assignment for my Python course that I'm struggling with.

We are supposed to make a function that prints out binary as follows:

If the input is:

chessboard(3)


It should print out:

101
010
101


And so forth..

Its a "simple" program but I'm really new to coding.

I can produce a while loop that writes out the correct length and amount of lines but I'm struggling to produce variation between the lines.

This is what I have come up with so far:

def chessboard(n):
height = n
length = n
while height > 0:
while length > 0:
print("1", end="")
length -= 1
if length > 0:
print("0", end="")
length -= 1
height -= 1
if length == 0:
break
else:
print()
length = n


With the input:

chessboard(3)


It prints out:

101
101
101


Could someone help me figure out how I could start every other line with zero instead of one?

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