the main program user that implements the interactive calculator provided here, with an example output for solving:

infix 3*(9-5) ==> postfix 395-*

The output shoudl look like (you note that the stack is displayed from bottom to top after each instruction)

[ ]

"""

WelcometotheRPNcalculator(entertoquit)

=================

=================

>3

=================

3.0

=================

>9

=================

3.0

9.0

=================

>5

=================

3.0

9.0

5.0

=================

>-

=================

3.0

4.0

=================

>*

=================

12.0

=================

"""

[ ]

#fromStackCalcimportStackCalc

print("WelcometotheRPNcalculator(entertoquit)")

mystack=StackCalc()

whileTrue:

print(mystack)

prompt=input(">")

ifprompt=="":break

elifprompt=="+":mystack.add()

elifprompt=="*":mystack.multiply()

elifprompt=="-":mystack.subtract()

elifprompt=="/":mystack.divide()

else:mystack.push(float(prompt))

print("ThanksforusingtheRPNcalculator")