import random

def get_guess():

  # Set the dashes to the length of the secret word and set the amount of guesses
  # the user has to 10
  dashes = "-" * len(secret_word)
  guesses_left = 10

  # This will loop as long as BOTH conditions are true:
  # 1. The number of guesses of left is greater than -1
  # 2. The dash string does NOT equal the secret word
  while guesses_left > -1 and not dashes == secret_word:

    # Print the amount of dashes and guesses left
    print(dashes)
    print (str(guesses_left))

    # Ask the user for input
    guess = input("Guess:")

    # Conditions that will print out a message according to
    # invalid inputs
    if len(guess) != 1:
      print ("Your guess must have exactly one character!")

    # If the guess is in the secret word then we updtae dashes to replace the
    # corresponding dash with the correct index the guess belongs to in the
    # secret word
    elif guess in secret_word:
      print ("That letter is in the secret word!")
      dashes = update_dashes(secret_word, dashes, guess)

    # If the guess is wrong then we display a message and subtract
    # the amount of guesses the user has by 1
    else:
      print ("That letter is not in the secret word!")
      guesses_left -= 1

  if guesses_left < 0:
    print ("You lose. The word was: " + str(secret_word))

  # If the dash string equals the secret word in the end then the
  # user wins
  else:
    print ("Congrats! You win. The word was: " + str(secret_word))

# This function updates the string of dashes by replacing the dashes
# with words that match up with the hidden word if the user manages to guess
# it correctly
def update_dashes(secret, cur_dash, rec_guess):
  result = ""

  for i in range(len(secret)):
    if secret[i] == rec_guess:
      result = result + rec_guess     # Adds guess to string if guess is correctly

    else:
      # Add the dash at index i to result if it doesn't match the guess
      result = result + cur_dash[i]

  return result

words = ["bob", "cool", "whatup"]

secret_word = random.choice(words)
get_guess()