How to Remove the last few characters from console Python?

Question

I am making a little math game, similar to zeta mac. Everything seems to be working well. Ideally I would like this console output to erase incorrect answers entered by the user, without reprinting the math problem again for them to solve. Is something like this possible?

For example, I may prompt the user to answer "57 + 37 = " in the console, then if they type 24 (console would look like this "57 + 37 = 24", I would like the 24 to be erased, and for the "57 + 37 = " to remain, allowing the user to guess again, without the same equation having to be printed again on a line below.

Here is the source code (sorry if its messy, I just started learning python):

import random
import time


def play(seconds):
    start_time = time.time()
    score = 0
    while True:
        current_time = time.time()
        elapsed_time = current_time - start_time
        a = random.randint(2, 100)
        b = random.randint(2, 100)
        d = random.randint(2, 12)
        asmd = random.choice([1, 2, 3, 4])
        if (asmd == 1):
            solve = a + b 
            answer  = input("%d + %d = " % (a, b))
        elif (asmd == 2):
            if (a > b):
                solve = a - b
                answer  = input("%d - %d = " % (a, b))
            else:
                solve = b - a
                answer  = input("%d - %d = " % (b, a))
        elif (asmd == 3):
            solve = a * d
            answer  = input("%d * %d = " % (a, d))
        else:
            solve = d
            c = a * d
            answer  = input("%d / %d = " % (c, a))
    
             
        while (solve != int(answer)):
            answer = input("= ")   
        score += 1
        if elapsed_time > seconds:
            print("Time\'s up! Your score was %d." % (score))
            break  


play(10)

Answer 1

Just use add these two lines after answer = input("= "):

sys.stdout.write("\033[F") #back to previous line

sys.stdout.write("\033[K") #clear line

import random
import time
import sys

def play(seconds):
    start_time = time.time()
    score = 0
    while True:
        current_time = time.time()
        elapsed_time = current_time - start_time
        a = random.randint(2, 100)
        b = random.randint(2, 100)
        d = random.randint(2, 12)
        asmd = random.choice([1, 2, 3, 4])
        if (asmd == 1):
            solve = a + b 
            answer  = input("%d + %d = " % (a, b))                            
        elif (asmd == 2):
            if (a > b):
                solve = a - b
                answer  = input("%d - %d = " % (a, b))
            else:
                solve = b - a
                answer  = input("%d - %d = " % (b, a))
        elif (asmd == 3):
            solve = a * d
            answer  = input("%d * %d = " % (a, d))
        else:
            solve = d
            c = a * d
            answer  = input("%d / %d = " % (c, a))
    
             
        while (solve != int(answer)):
            answer = input("= ") 
            if solve != int(answer):  
                sys.stdout.write("\033[F") #back to previous line 
                sys.stdout.write("\033[K") #clear line
            
        score += 1
        if elapsed_time > seconds:
            print("Time\'s up! Your score was %d." % (score))
            break  


play(10)

Answer 2

Removing characters from the end of the input is probably not the best approach as you aren't quite sure how many characters there will be (depends on the number).

The answer from @QualidSai does clear the terminal but it doesn't show your formula string again. To solve this I'd store the formula string that you print as part of your input as a string variable, then you can use that when looping. For example:

import random
import time
import sys

def play(seconds):
    start_time = time.time()
    score = 0
    while True:
        current_time = time.time()
        elapsed_time = current_time - start_time
        a = random.randint(2, 100)
        b = random.randint(2, 100)
        d = random.randint(2, 12)
        asmd = random.choice([1, 2, 3, 4])
        if (asmd == 1):
            solve = a + b 
            question = "%d + %d = " % (a, b)
        elif (asmd == 2):
            if (a > b):
                solve = a - b
                question = "%d - %d = " % (a, b)
            else:
                solve = b - a
                question = "%d - %d = " % (b, a)
        elif (asmd == 3):
            solve = a * d
            question = "%d * %d = " % (a, d)
        else:
            solve = d
            c = a * d
            question = "%d / %d = " % (c, a)
        
        answer = False
        while (solve != int(answer)):
            answer = input(question)
            sys.stdout.write("\033[F")
            sys.stdout.write("\033[K")
        score += 1
        if elapsed_time > seconds:
            print("Time\'s up! Your score was %d." % (score))
            break  

play(10)