Error thrown by Python code location

I think Python's request for code location is just a pervert, indentation caused by the error I used to say in the blog, if you do not understand can look at my previous blog, and today encountered a code location caused by the error, now to share:

I want to print out a solid matrix of 5*5, first of all:

(J=1 is placed outside the while loop, and the 2nd to 4th column is empty.) Inconsistent with expectations)

(At this point the j=1 is placed in the while and the result achieves the intended purpose.) An asterisk matrix that can output 5*5)

Error thrown by Python code location