[Python] TypeError: sequence item 0: expected str instance, int found. what should I do to...

matrix1=[[1,2,3,4],[5,6,7,8],[9,10,11,12],[13,14,15,16]]

m2="\n".join(["\t".join([ritem for ritem in item]) for item in matrix1])

print(m2)


where am i wrong that i receive this error?

Continue reading...