calculator.py

def add(a,b):
    print(f"Addition of {a} and {b} is {a+b}")
def sub(a,b):
    print(f"Subtraction of {a} and {b} is {a-b}")
def mul(a,b):
    print(f"Multiplication of {a} and {b} is {a*b}")
def div(a,b):
    print(f"Division of {a} and {b} is {a/b}")
def rem(a,b):
    print(f"Remainder of {a} and {b} is {a%b}")
while True:
    print("1. Addition")
    print("2. Subtraction")
    print("3. Multiplication")
    print("4. Division")
    print("5. Remainder")
    print("6. Exit")
    print("------------------------------------")
    choice=int(input("Enter your choice: "))
    if(choice==6):
        break
    a=int(input("Enter First number: "))
    b=int(input("Enter second number: "))
    if choice==1:
        add(a,b)
    elif choice==2:
        sub(a,b)
    elif choice==3:
        mul(a,b)
    elif choice==4:
        div(a,b)
    elif choice==5:
        rem(a,b)
    print("\n")