someList = {
    1000: ("1","2","3","","5","","7","8","9"),
    1001: ("1","2","3","4","5","6","","8","9"),
}

for key, value in someList.items():
    for item in value:
        print('%d:\tFULL BLOCK\t[%s]' % (key, item)) if item != '' else print('%d:\tEMPTY BLOCK\t[ ]' % key)