Calclulator code not working

Question

my code is not working. below is the code and error message, can anybody help
while True:
print("Options:")
print("Enter 'add' to add two numbers")
print("Enter 'subtract' to subtract two numbers")
print("Enter 'multiply' to multiply two numbers")
print("Enter 'divide' to divide two numbers")
print("Enter 'quit' to end the program")
user_input = input(":")
if user_input == "quit":
break
elif user_input == "add":
num1 = float(input("Enter a number: "))
num2 = float(input("Enter another number: "))
result = str(num1 + num2)
print("The answer is " + result)
elif user_input == "subtract":
num1 = float(input("Enter a number: "))
num2 = float(input("Enter another number: "))
result = str(num1 - num2)
print("The answer is " + result)
elif user_input == "multiply":
num1 = float(input("Enter a number: "))
num2 = float(input("Enter another number: "))
result = str(num1 * num2)
print("The answer is " + result)
elif user_input == "divide":
num1 = float(input("Enter a number: "))
num2 = float(input("Enter another number: "))
result = str(num1 / num2)
print("The answer is " + result)
else:
print("Unknown input")

ptions:
Enter 'add' to add two numbers
Enter 'subtract' to subtract two numbers
Enter 'multiply' to multiply two numbers
Enter 'divide' to divide two numbers
Enter 'quit' to end the program
:Enter a number: Enter another number: The answer is 5.0
Options:
Enter 'add' to add two numbers
Enter 'subtract' to subtract two numbers
Enter 'multiply' to multiply two numbers
Enter 'divide' to divide two numbers
Enter 'quit' to end the program
:

Traceback (most recent call last):
File "./Playground/file0.py", line 8, in <module>
user_input = input(":")
EOFError: EOF when reading a line

Answer 1

Thanks a lot for your reply. Will surely try on PC

Answer 2

I checked on PC and it worked. thanks a lot for your support