CODEWITHSUNDEEP
pythonuser-input
MunzeyDev
MunzeyDev

Reputation: 1

How do I make user input not a string or input but an operator?

I was trying to make a quick little user-input calculator but to do that I need the user to decide what operator to use. I tried to make the user-input for the operator a string but that obviously didn't work. I tried it as an integer too but still had no luck. So I'm confused about what it is that I'm supposed to do.

so far I only have this and it shows an error:

num1 = int(input("What is your first number?: "))
num2 = int(input("What is your second number?: "))
op = (input("Enter an operator: ")
print(num1 + op + num2)

SOLVED

Upvotes: 0

Views: 821

Answers (2)

Oli
Oli

Reputation: 2602

The cleanest safe way to do this is by storing the operators as functions in a dictionary:

from operator import *
num1 = int(input("What is your first number?: "))
num2 = int(input("What is your second number?: "))
op = input("Enter an operator: ")

ops = {
    "+": add, # from the operators module
    "-": sub,
    "/": div,
    "*": mul
}
      
print(ops[op](num1,num2))

Upvotes: 1

smaxwell
smaxwell

Reputation: 89

you could create some if statements like this:

if op == '+':
    print(num1 + num2)
if op == '-':
    print(num1 - num2)

Just do the same thing for multiplying and dividing

Upvotes: 0

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