Python Forum

hi Everybody ,
i am beginner in programming but while learning statement/loops/lists in python i coded simple code to check user name/password against stored one as you could see below:
although it still very very simple but i am feeling happy to accomplish something while i am learning:

User_names_database = ['user_name']
password_database = ['0123456']
"""prompt user to enter his/her username"""
entered_user_name = input("Please enter the user name:")
entered_user_name.title()
entered_password = input("please enter your password:")

"""Check if the entered user name/password existing in the user data base of the website"""
if entered_user_name == 'user_name' and entered_password == '0123456':
    print('login Successful,you will be shortly redirected to your account page')
else:
    print('login fail,please try again\nif you cannot remember you should choose forget password below')
    while True:
        entered_user_name = input("Please enter the user name:")
        entered_user_name.title()
        entered_password = input("please enter your password:")
        if entered_user_name == ' user_name' and entered_password == '0123456':
            print('login Successful,you will be shortly redirected to your account page')

really i know i this is very basic but i am feeling happy
i think this may be linking with back end database of course with some code scalability to be more dynamic
so Guys what is your opinion ?? i am happy to know your feedback
Note:this code is written in python language

I definitely have feedback, but I'm not sure the right way to go about it... at this point, here's what I recommend:

• Write tests. Try to break your code. I can see at least one bug.
  
• Add comments to your code explaining what you think it's doing (e.g. the .title() calls).
  
• If you can cleanup the duplicated lines, that would be ideal as well.
  

Hint: At least four lines can be removed without changing the behavior of your code.

It works perfectly fine but,it would be better if you haven't defined the password yet and let the user create one first and then check if the login == registration.