Question

Provide Python code that does the following:

4) Write a program that asks the user to enter a 9 character password. Test to see if it is a valid password. The validity test is

a) they enter exactly 9 characters AND

b) that every 3^rd character, starting with the 1^st character is the letter z.

If it is valid print out the message “valid password” otherwise print the message “invalid password”.

Sample output.

Please enter a password: zaazbbz12

valid password

Please enter a password: Aaazbbz12

invalid password

Please enter a password: zaaz

invalid password

Answer 1

password = input('Please enter a password: ')   # read password

# check if length of password is exactly 9
if len(password) != 9:
   print('invalid password')
   
else:
   # check if every 3rd character is z in the password
   is_valid = True
   for i in range(0, 9, 3):
      if password[i] != 'z':
         is_valid = False
         break
         
   if is_valid:
      print('valid password')
   else:
      print('invalid password')

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