Help with Try Except for my calculator

Question

Hello, my calculator is viewable on my profile but I'll post code here as well.
Essentially, I am having issues with my try/except for my calculator.

If my input is something like: a + a
I would like for my except print statement to run, which it won't. It just give ValueError and its own print error back. I would also like my code to stop running if the except it run.

Appreciate help thx.

CODE:

# The input ex. 2 + 2
prob = input()

# Using operator for math
import operator
import math

# Converting the input into a list
prob_list = list(prob.split(" "))

# Checking if the input is an integer.
try:
isinstance(prob_list[0], int) == True
isinstance(prob_list[2], int) == True
except:
print("Please enter a number.")

# Functions to be called for the math
def add(x, y):
return operator.add(x, y)

def subt(x, y):
return x - y

def mult(x, y):
return x * y

def divi(x, y):
return x / y

def powr(x, y):
return x ** y

def sqrt(x):
return math.sqrt(x)

# Statements to be sent off to the functions above
if prob_list[1] == "+":
print(add(int(prob_list[0]), int(prob_list[2])))

if prob_list[1] == "-":
print(subt(int(prob_list[0]), int(prob_list[2])))

if prob_list[1] == "*":
print(mult(int(prob_list[0]), int(prob_list[2])))

if prob_list[1] == "**":
print(powr(int(prob_list[0]), int(prob_list[2])))

if prob_list[1] == "sqrt":
print(sqrt(int(prob_list[0])))

# Division. Will also handle the error if divding by 0
if prob_list[1] == "/":
try:
print(divi(int(prob_list[0]), int(prob_list[2])))
except ZeroDivisionError:
print("Divided by zero")

Answer 1

Your code is truncated because it's too big to fit in the post's Description. I suggest you to save it as Python code bit in SoloLearn and share its link in place of the raw text snippet for ease of analysis.

https://www.sololearn.com/post/75089/?ref=app