Calulator

 try:

while True:

print("Enter a + b for addition")

print("Enter a - b for subtraction")

print("Enter a * b for multiplication")

print("Enter a / b for decimal division")

print("Enter a ** b for power")

print("Enter a % b for remainder")

print("Enter a // b for modulo division")

print("Enter q for quit")

t=input("Enter expression:")

if t=='q':

break

print(eval(t))

except Exception as e:

print(e)