Gaming How to conver code to an algorithm?

[kevan]

import time

while True:
value = int(input("Anti-Bot Test: Enter a number under 5 (leave blank to quit): "))
if not value:
break
elif value < 5:
print ("Passed")
break
else:
print ("Failed")

if value:
username = input("Enter Username: ")
password = input("Enter Password: ")
password2 = input("Re-enter Password: ")


while (password != password2):
print ("Second password doesn't match the first password")
print ("Re-enter your original password")
password2 = input("")
dob = input("Date of Birth: ")
print ("Review the following information")
time.sleep(1)
print ("You would like your username to be: %s" % (username))
print ("Your date of birth is: %s" % (dob))
y=['yes']
yn=str(input("Type yes to confirm information or no to revise it: "))
if yn in y:
print ("Thank you for registering")

I need it if they type no they go back to entering their username. Also if they type anything else except 'yes' or 'no' it tells them that is wrong and to type 'yes or 'no' again.
Thanks for the help so far guys

This is the code I have and I'm curious on how I would convert it back to an Algorithm? Also the question I have there in the quote. Any help with that please!

 

[kirlac]

Since an algorithm is just the step by step of what needs to happen you just read the code and write what each part is doing eg.
In a loop
Take in input to determine user is not a bot
Check if input is less than 5
etc.

As for the question, perhaps use some while loops eg.
create variable repeating set to true
while repeating
enter login
ask question
while answer is not yes or no
ask question again
if answer is yes
do yes scenario
set repeating to false
else set repeating to true
end loop
end loop

EDIT: Forgot to create repeating variable (initialized as true) and set it to false when doing the yes sceneario to prevent infinite loop.