Write a program called$$calculator$.$py that can calculate simple equations of any of the following forms:

x op y

$($x op$1$ y$)$ op$2$ z

x op$1($y op$2$ z$)$

The user must enter each equation as one single string, e$.$g$.,"2+3"$ and $"(2+4)**2".$

Your program should not ask for the different parts of an equation separately, e$.$g$.,$ "what's the first operand", "what's the operator", and "what's the second operand".

Assume the user will only enter non$-$negative numbers.

The possible operators are $+,-,*,/,**$

$**$ is exponentiationNote that the divisor cannot be $0.$ Your program should handle it gracefully, i$.$e$.,$ report it and ask the user to try again. $($See examples for more details$)$

The user may enter any number of empty spaces anywhere in the equation.$$

Print the equation the user enters along with the result. If the equation contains parentheses, print the middle step equation and result as well. $($See examples for more details.$)$

Finally, your program should keep asking the user for a new equation until the user enters "Done". When the user enters Done, your program should terminate "naturally", i$.$e$.,$ NO red errors.

Requirements

Your code should be well organized using functions, i$.$e$.$

Everything should be inside some function. No global variables.$$Define at least two functions, including the main$()$ function. So just one more function other than main$()$ is sufficient.

You are$$not allowed to import any module,$$i$.$e$.$

No "import $..."$ or "from $...$ import $..."$ or anything for the same purpose.

You are$$not allowed to use the eval$()$ function or anything similar.

All the outputs from your program should be printed nicely and readable.