What Else Do I Need for Codehs 8.3.8: Word Ladder

Skipping print but continuing program

Your code looks perfect!
Just need some changes according to (python 3)

def get_index():
    while True:
        index_in = int(input("Enter a number between 0 and " + str(len(string) - 1) + " (-1 to quit): "))
        if index_in > len(string) -1 or index_in < -1:
            print("Invalid Index")
        elif index_in == -1:
            return False
        else:
            get_letter(index_in)

def get_letter(index):
    global string
    char_list = list(string)
    while True:
        letter = input("Enter a letter: ")
        if letter.isupper():
            print("Character must be lower case!")
        else:
            char_list[index] = letter
            string = ('').join(char_list)
            break
    print(string)
    return



string = input("Enter a word: ")
get_index()

You should use print(msg) instead of print msg in python 3

You missed one condition, consider this scenario,

Run the program

Enter a word: c

Enter a number between 0 and 0 (-1 to quit): 1

Error

there was a wrong in get_index() check on line:

if index_in > len(string) or index_in < -1:

it should be :

if index_in > len(string) -1 or index_in < -1:

• ============================================================ *

UPDATE

updating the annwer according to discussion in comments:

def get_index(string):
    try:
        while True:
            index_in = int(input("Enter a number between 0 and " + str(len(string) - 1) + " (-1 to quit): "))
            if index_in > len(string) -1 or index_in < -1:
                print("Invalid Index")
            elif index_in == -1:
                return False
            else:
                get_letter(index_in, string)
    except ValueError:
        print("Please Enter a number!")
        get_index(string)

def get_letter(index, string):
    char_list = list(string)
    while True:
        letter = input("Enter a letter: ")
        if letter.isupper():
            print("Character must be lower case!")
        else:
            char_list[index] = letter
            string = ('').join(char_list)
            break
    print(string)
    return


if __name__ == "__main__":
    string = input("Enter a word: ")
    get_index(string)

CHANGES are:

1. You must avoid global variables.

   Instead, pass particular variable to functions as argumens.
   Notice, how string was used in first answer and how it was used in the updated answer.

2. Use try-catch blocks to catch unexpected behavior

I'm trying to write a code in which the character "|" is inbetween each letter however it does not work for some characters

Thanks for all your suggestions; it has really helped with the troubleshooting, and the problem in general, and I managed to fix it, so it is all good.

Here is my finished code:

def art(word):
  numoflet=len(word)
  word=word.upper()
  for Y in range(numoflet-1,-1,-1):
    let=word[Y]
    let1=let+"|"
    word=word[:Y]+word[Y].replace(let,let1)+word[Y+1:]
    print(word)
    print(Y)
  word="|"+word
  pat=""
  numoflet=len(word)
  for X in range(numoflet,0,-1):
    if X%2==0:
      pat=pat+"-"
    else:
      pat=pat+"+"
  print("\n"+pat+"\n\n"+word+"\n\n"+pat)
#maincode
art("Craig'n'Dave")

How can I make python repeat a certain line of code until a user says they will keep the name?

You could run it in a loop until the user gives the input you desire, like:

surity = ""
while surity != "Yes":
    nameofbot = input("What would you like to name your rover?  ")
    surity = input("Are you sure?")

This will keep on running until surity = "Yes" when it will escape the loop.

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