Assignment

[tinabina22]

This is an assignment that is due next week and I'm stuck on the for i in range code at the bottom highlighted with purple font.  I have included the instructions from my professor as well as the beginning of the code.  It's a password saver code that we need to make work.

Beginning of code:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75

import csv import sys   #The password list - We start with it populated for testing purposes passwords = [["yahoo","XqffoZeo"],["google","CoIushujSetu"]]     #The password file name to store the passwords to passwordFileName = "samplePasswordFile"   #The encryption key for the caesar cypher encryptionKey=16   #Caesar Cypher Encryption def passwordEncrypt (unencryptedMessage, key):     #We will start with an empty string as our encryptedMessage   encryptedMessage = ''     #For each symbol in the unencryptedMessage we will add an encrypted symbol into the encryptedMessage   for symbol in unencryptedMessage:       if symbol.isalpha():           num = ord(symbol)           num += key             if symbol.isupper():               if num > ord('Z'):                   num -= 26               elif num < ord('A'):                   num += 26           elif symbol.islower():               if num > ord('z'):                   num -= 26               elif num < ord('a'):                   num += 26             encryptedMessage += chr(num)       else:           encryptedMessage += symbol     return encryptedMessage   def loadPasswordFile(fileName):     with open(fileName, newline='') as csvfile:       passwordreader = csv.reader(csvfile)       passwordList = list(passwordreader)     return passwordList   def savePasswordFile(passwordList, fileName):     with open(fileName, 'w+', newline='') as csvfile:       passwordwriter = csv.writer(csvfile)       passwordwriter.writerows(passwordList)   while True:   print("What would you like to do:")   print(" 1. Open password file")   print(" 2. Lookup a password")   print(" 3. Add a password")   print(" 4. Save password file")   print(" 5. Print the encrypted password list (for testing)")   print(" 6. Quit program")   print("Please enter a number (1-4)")   choice = input()     if(choice == '1'): #Load the password list from a file       passwords = loadPasswordFile(passwordFileName)     if(choice == '2'): #Lookup at password       print("Which website do you want to lookup the password for?")       for keyvalue in passwords:           print(keyvalue[0])       passwordToLookup = input()

What I need to make work:

1 2	for i in range(len('yahoo, google')):   print('i')

#1. Create a loop that goes through each item in the password list
#  simplest way to loop through a list is: for i in range(len(NAMEOFLIST))

[Larz60+]

look at:

1 2	for i = in range(len('yahoo', 'google')):     print('i')

your instructions were:

#1. Create a loop that goes through each item in the password list using range

I paraphrased.

The name of your password list is passwordlist ... so, don't you think the range should be:

1	for i in range(len(passwordlist))

and you should be printing out i, not 'i'

in other words:

1 2	for i in range(len(passwordlist)):     print(i)

Don't try to over think, it's usually (not always) quite simple

[Skaperen]

or:

1	print(passwordlist[i])

[sparkz_alot]

You might want to also check this post http://python-forum.io/Thread-Beginner-N...76#pid1676

[tinabina22]

I still can't get it to work with any of your suggestions, do I have the code in the right spot within the code itself?

[nilamo]

What's your current code, what's the current output, what's the output you're trying to have, and what's the current error (if any)?

[tinabina22]

I need for this code

for i in range(len("samplepasswordfile")):
   i = [0,1]

to find these passwords

passwords = [["yahoo","XqffoZeo"],["google","CoIushujSetu"]]

it goes as far as #2, ask me what password I want to look up
yahoo
google

I type in google or yahoo, and it starts all over at #1

within this code

import csv
import sys

#The password list - We start with it populated for testing purposes
passwords = [["yahoo","XqffoZeo"],["google","CoIushujSetu"]]


#The password file name to store the passwords to
passwordFileName = "samplePasswordFile"

#The encryption key for the caesar cypher
encryptionKey=16

#Caesar Cypher Encryption
def passwordEncrypt (unencryptedMessage, key):

   #We will start with an empty string as our encryptedMessage
   encryptedMessage = ''

   #For each symbol in the unencryptedMessage we will add an encrypted symbol into the encryptedMessage
   for symbol in unencryptedMessage:
       if symbol.isalpha():
           num = ord(symbol)
           num += key

           if symbol.isupper():
               if num > ord('Z'):
                   num -= 26
               elif num < ord('A'):
                   num += 26
           elif symbol.islower():
               if num > ord('z'):
                   num -= 26
               elif num < ord('a'):
                   num += 26

           encryptedMessage += chr(num)
       else:
           encryptedMessage += symbol

   return encryptedMessage

def loadPasswordFile(fileName):

   with open(fileName, newline='') as csvfile:
       passwordreader = csv.reader(csvfile)
       passwordList = list(passwordreader)

   return passwordList

def savePasswordFile(passwordList, fileName):

   with open(fileName, 'w+', newline='') as csvfile:
       passwordwriter = csv.writer(csvfile)
       passwordwriter.writerows(passwordList)



while True:
   print("What would you like to do:")
   print(" 1. Open password file")
   print(" 2. Lookup a password")
   print(" 3. Add a password")
   print(" 4. Save password file")
   print(" 5. Print the encrypted password list (for testing)")
   print(" 6. Quit program")
   print("Please enter a number (1-4)")
   choice = input()

   if(choice == '1'): #Load the password list from a file
       passwords = loadPasswordFile(passwordFileName)

   if(choice == '2'): #Lookup at password
       print("Which website do you want to lookup the password for?")
       for keyvalue in passwords:
           print(keyvalue[0])
       passwordToLookup = input()

       for i in range(len("samplepasswordfile")):
           i = [0,1]

[Yoriz]

 #1. Create a loop that goes through each item in the password list
#  simplest way to loop through a list is: for i in range(len(NAMEOFLIST))

The simplest way to loop through each item in the password list is

1 2	for item in NAMEOFLIST:     print(item)

As passwords is a list of list you can do the loop like this

1 2 3

passwords = [["yahoo","XqffoZeo"],["google","CoIushujSetu"]] for site, password in passwords:     print(site, password)

Output:
yahoo XqffoZeo
google CoIushujSetu

In the last post the reason the code starts all over at #1 after inputting a password is because there is no code to tell it to do anything but go back to the while loop.

[tinabina22]

#1. Create a loop that goes through each item in the password list # simplest way to loop through a list is: for i in range(len(NAMEOFLIST))

The simplest way to loop through each item in the password list is

1	for item in NAMEOFLIST:     print(item)

As passwords is a list of list you can do the loop like this

1	passwords = [["yahoo","XqffoZeo"],["google","CoIushujSetu"]] for site, password in passwords:     print(site, password)

Output:
 yahoo XqffoZeo google CoIushujSetu 

In the last post the reason the code starts all over at #1 after inputting a password is because there is no code to tell it to do anything but go back to the while loop.

---

Thank you very much, finally got it.
Now to move on to the next part of the code I need to finish up on.