help me, seniors!(Unsolved)

Question :

You have used code of dump like next line. I think that it is too much learning to junior. What do you think about?

code :

with conn:
    with open('/Users/asd/Desktop/python_basic/dump.sql', 'w') as f:
        for line in conn.iterdump():
            f.write('%s\n' % line)
        print("Complete Dump, Good job!")

result :

And! Using 'with:', I shouldn't write 'conn.close()' or 'open.close()'🙄?