Hello! I am currently working on a program to take an email address, password an

Question

Hello! I am currently working on a program to take an email address, password and user name from a user and display them. I am stuck on getting my getUsername() function to do anything. I get a blank list. My program is not finished yet, i have to add a third condition that would exit the menu so bear that in mind please! I added the print(token_emailAddress) and it prints a blank list. what am i doing wrong?

def main():

# Declare variables

choice = ''

repeat = 'y'

emailAddress = ''

username = ''

password = ''

#initiates three blank lists

emailAddressList = []

passwordList = []

usernameList = []

# Display program header

print('Login Verification Program')

print('--------------------------')

while repeat == 'y':

# Display program menu

print(' 1. Enter new login credentials')

print('2. Display login credentials')

print('3. Exit program')

choice = input('Enter selection: ')

if choice == '1':

emailAddressList.append(getEmailAddress())

passwordList.append(getPassword())

username = getUsername(emailAddress)

usernameList.append(username)

print('Credentials Accepted!')

if choice == '2':

displayCredentialsReport(emailAddressList,passwordList,usernameList)

  

# define the getEmailAddress function

def getEmailAddress():

# asks the user to input their email address

isValid = False

emailAddress = input('Enter your email address:')

while isValid != True:

# tests to see if there are two characters in the email address

if '.' not in emailAddress:

print('Your email address is invalid!')

emailAddress = input('Please re-enter:')

isValid = False

elif '@' not in emailAddress:

print('Your email address is invalid!')

emailAddress = input('Please re-enter:')

isValid = False

else:

isValid = True

#function returns email address

return emailAddress

  

# define the get password function

def getPassword():

# define local variables

i = 0

sp = 0

u = 0

l = 0

isValid = False

#print the initial message

print('NOTE: Passwords must be at least 8 characters in length and contain at least one uppercase letter and one number.')

password = input('Enter your password:')

# begins the while loop for the function

while isValid != True:

# tests to see if the password has less than 8 characters

if len(password) < 8:

print('Your password is invalid!')

password = input('Please re-enter:')

isValid = False

break

# when condition passes, we move on to testing the contents of the password

else:

for c in password:

# tests for te digit

if c.isdigit():

i = 1

# tests for special characters

elif c=="$" or c=="#" or c=="@":

sp = 1

elif c == c.upper():

# tests for an upper case`

u = 1

# tests for a lower case

elif c == c.lower():

l = 1

else:

# exits if statement if all conditions are met

continue

# if all of the branches of the if statement are met, the following appends the

# valid password to the list of passwords

if i == 1 and l == 1 and sp == 1 and u == 1:

isValid = True

break

else:

print('Your password is invalid!')

password = input('Please re-enter:')

continue

# returns the password and the password list

return password

  

def getUsername(emailAddress):

token_emailAddress = emailAddress.split('@')

username = token_emailAddress[0]

print(token_emailAddress)

return username

  

def displayCredentialsReport(emailAddressList,passwordList,usernameList):

# Display report header

c=0

print('Login Credential Report')

print('----------------------- ')

  

print('Email Address ' + ' ' + 'Password ' + ' ' + 'Username')

print('------------- ' + ' ' + '-------- ' + ' ' + '--------')

while c < range(len(usernameList)):

print(emailAddressList[c] + ' ' +passwordList[c] + ' ' + usernameList[c])

c+=1

  

if __name__ == '__main__':

main()

Explanation / Answer

def main(): # Declare variables choice = '' repeat = 'y' emailAddress = '' username = '' password = '' # initiates three blank lists emailAddressList = [] passwordList = [] usernameList = [] # Display program header print('Login Verification Program') print('--------------------------') while repeat == 'y': # Display program menu print(' 1. Enter new login credentials') print('2. Display login credentials') print('3. Exit program') choice = input('Enter selection: ') if choice == '1': emailAddressList.append(getEmailAddress()) passwordList.append(getPassword()) username = getUsername(emailAddressList[-1]) usernameList.append(username) print('Credentials Accepted!') if choice == '2': displayCredentialsReport(emailAddressList, passwordList, usernameList) if choice=='3': repeat='n' else: print('Enter valid choice') # define the getEmailAddress function def getEmailAddress(): # asks the user to input their email address isValid = False emailAddress = input('Enter your email address:') while isValid != True: # tests to see if there are two characters in the email address if '.' not in emailAddress: print('Your email address is invalid!') emailAddress = input('Please re-enter:') isValid = False elif '@' not in emailAddress: print('Your email address is invalid!') emailAddress = input('Please re-enter:') isValid = False else: isValid = True # function returns email address return emailAddress # define the get password function def getPassword(): # define local variables i = 0 sp = 0 u = 0 l = 0 isValid = False # print the initial message print( 'NOTE: Passwords must be at least 8 characters in length and contain at least one uppercase letter and one number.') password = input('Enter your password:') # begins the while loop for the function while isValid != True: # tests to see if the password has less than 8 characters if len(password) < 8: print('Your password is invalid!') password = input('Please re-enter:') isValid = False # when condition passes, we move on to testing the contents of the password else: for c in password: # tests for te digit if c.isdigit(): i = 1 # tests for special characters elif c == "$" or c == "#" or c == "@": sp = 1 elif c == c.upper(): # tests for an upper case` u = 1 # tests for a lower case elif c == c.lower(): l = 1 else: # exits if statement if all conditions are met continue # if all of the branches of the if statement are met, the following appends the # valid password to the list of passwords if i == 1 and l == 1 and sp == 1 and u == 1: isValid = True break else: print('Your password is invalid!') password = input('Please re-enter:') # returns the password and the password list return password def getUsername(emailAddress): token_emailAddress = emailAddress.split('@') username = token_emailAddress[0] #print(token_emailAddress) return username def displayCredentialsReport(emailAddressList, passwordList, usernameList): # Display report header c = 0 print('Login Credential Report') print('--------------------------------------------------------------------- ') print('{:>20} {:>15} {:>15}'.format('Email Address', 'Password','Username')) print('{:->20} {:->15} {:->15}'.format('-','-','-')) while c < (len(usernameList)): print('{:>20} {:>15} {:>15}'.format(emailAddressList[c],passwordList[c],usernameList[c]))#emailAddressList[c] + ' ' + passwordList[c] + ' ' + usernameList[c]) c += 1 if __name__ == '__main__': main()

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