Simple Python console program asking questions

Question

I'm trying to create this program

Print a welcome message, and then prompt the user to select a difficulty by entering 1, 2 or 3.
Use a loop to re-prompt the user until a valid response (1, 2 or 3) is entered.

Once a difficulty has been selected, print a message confirming the selected difficulty and set variables as follows:

1 was chosen:
lives = 3, max_num = 10 and questions = 5
2 chosen:
lives = 2, max_num = 25 and questions = 10
3 was chosen:
lives = 1, max_num = 50 and questions = 15

lives represents how many incorrect answers are permitted.
max_num represents the largest number enter code here used when generating a question.
questions represents the number of questions

The code below is what i have done so far

def input_valid_difficulty(prompt=''):
    while True:
        try:
            n = int(input(prompt))
            if n < 0 or n > 3:
                raise ValueError
                break
        except ValueError:
            print("Invalid choice! Enter 1,2 or 3.")
            prompt = "Select a difficulty?: (0 to exit):"
    return n

difficulty = input_valid_difficulty ("Select a difficulty?: (0 to exit):")
if difficulty == 0:
    quit()
elif difficulty == 1:
    print("Easy mode selected!")
elif difficulty == 2:
    print("Medium mode selected!")
elif difficulty == 3:
    print("Hard mode selected!")

What problem are you having? Seems you could set lives and max_num based upon difficulty returned. — DarrylG
– DarrylG, Commented Sep 14, 2019 at 12:38
Seems in you "elif" conditionals (where you have the print statements) you could set lives and max_num to the desired values to give you what you want. Am I missing something? — DarrylG
– DarrylG, Commented Sep 14, 2019 at 13:17
yes sorry. its meant to be a math game which will allow the user to answer math equations. i need the end product to look like: Welcome to test. Select difficulty.' user selects easy' and after that i need the game to go straight in "question 1 of 5. you have 3 lives remaining. What is 5-3? User gives answer and gets a response either its correct or incorrect. — Rory Breaker
– Rory Breaker, Commented Sep 14, 2019 at 13:29

DarrylG · Accepted Answer · 2019-09-14 17:11:25Z

0

Here's an example of generating a game you descibed.

from random import sample

def input_valid_difficulty(prompt=''):
    while True:
        try:
            n = int(input(prompt))
            if n < 0 or n > 3:
                raise ValueError
            break
        except ValueError:
            print("Invalid choice! Enter 1,2 or 3.")
            prompt = "Select a difficulty?: (0 to exit):"
    return n

# Setup Difficult & Lives
difficulty = input_valid_difficulty ("Select a difficulty?: (0 to exit):")
if difficulty == 0:
    quit()
elif difficulty == 1:
    print("Easy mode selected!")
    lives, max_num, questions = 3, 10, 5
elif difficulty == 2:
    print("Medium mode selected!")
    lives, max_num, questions = 2, 25, 10
elif difficulty == 3:
    print("Hard mode selected!")
    lives, max_num, questions = 1, 50, 15

# Following line generates a list of 800 questions to choose from
operations = ['+', '-']  # testing addition and subtraction

#all_q_and_a = [(f"{i} {op} {j} = ?: ", eval(f"{i} {op} {j}")) for i in range(20) \
#                      for j in range(20) for op in operations]
# Following equivalent to above list comprehension
all_q_and_a = []
for i in range(20):
  for j in range(20):
    for op in operations:
      all_q_and_a.append((f"{i} {op} {j} = ?: ", eval(f"{i} {op} {j}")))

# Select random questions from list of all questions at random (note: 'questions' tells us how many questions to ask)
# 'Sample' selects a random list of unique questions from complete list
chosen_q_and_a = sample(all_q_and_a, questions)

# We now have a random set of questions and answers to present to 
# the user.  An example would be:
# [('18 + 19 = ?: ', 37), ('4 + 12 = ?: ', 16), ('8 + 2 = ?: ', 10), ('4 - 2 = ?: ', 2), ('1 + 3 = ?: ', 4)]

score = 0
for q in chosen_q_and_a:
  if lives == 0:
    break
  while lives > 0:
    answer = int(input(q[0]))
    if answer == q[1]:
      print("Correct")
      score += max_num  # increase score according to max_num 
                        #(wasn't sure if there was any
                        #other use of this variable)
      break
    else:
      lives -= 1
      print("Sorry, try again")

print(f"Your score was {score}")

edited Sep 14, 2019 at 17:11

answered Sep 14, 2019 at 14:15

DarrylG

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11 Comments

Rory Breaker Over a year ago

i am receiving a error for all q_and_a= line, the error is on the 'for i in range''

DarrylG Over a year ago

You're probably missing the continuation line indicator. Can you see and test the code here: repl.it/repls/SelfassuredIntentionalUsernames

Rory Breaker Over a year ago

Could be because i am using windows?

DarrylG Over a year ago

So am I. Does the link I provided work? That's on a cloud server and just uses your browser so it won't matter what you're on. If that works you can try on your machine with Jupyter notebooks, Pycharm, Visual Studio, etc.

DarrylG Over a year ago

You just have to hit the "run" button (greenish color) towards the top middle of the screen to run it.

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