Can't fix the error. Anyone??

Question

https://code.sololearn.com/cghZSJQpQKQK/?ref=app

Answer 1

The spaces were messed up, and the while loop was broken too
https://code.sololearn.com/cTQf1iirHjQa/?ref=app

Answer 2

It needs to look like this (note the indentation):

while condition:
if condition:
do_something()
elif condition:
do_something()
elif condition:
do_something()

Your variable "ans" doesn't do anything. You could use it to break the loop:

if user_input == '':
ans = False