Build a simple calculator module using PythonCreate a new file and save it as myModule.pyDefine four functions and name them add, subtract, multiply, divide and write thefunction body for each to return the calculated values for two or three numbers - set the default value to something smart to allow thisCreate a new file in the same directory and save it as myCalculator.pyMake sure to write import myModule so that the math functions you've written are included in your driver (myCalculator.py).Write a python program that:includes function to ask for user name, and two or three numbers (you need to decide how to allow the user to only enter two.)has docstrings for each functionuses the functions defined in myModule.py to calculate addition, subtraction, multiplication, division of two or three numbers.Gets input from and displays output to the userWrite a second python program called myTrip.py that uses functions to calculate your trip's costs. Note: You should display the costs to the user with proper prompts.Define a function called hotel_cost with one-argument nights as input. The hotel costs $140 per night. Therefore, the function hotel_cost should return 140 x nights.Define a function called plane_ride_cost that takes city names as input parameters. The function should return a different price depending on the location for a round trip. Below are the valid destinations and their corresponding one-way trip prices. "Charlotte": $183"Tampa": $220"Pittsburgh": $222"Los Angeles": $475Define a function called rental_car_cost with an argument called days. Calculate the cost of renting the car: Every day you rent the car costs $40 (cost = 40 x days). Return that cost.Then, define a function called trip_cost that takes city names and days as arguments, and have your function return the sum of calling the rental_car_cost (days), hotel_cost (days), and plane_ride_cost (city) functions – for each city.Modify your trip_cost function definition. Add a third argument, spending_money. Modify what the trip_cost function does. Add the variable spending_money to the sum that it returns.How hard is it to modify your program to update the per day and flight costs? Could you use constants at the top of your program to facilitate this?

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Answered: Build a simple calculator module using…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Build a simple calculator module using Python

Create a new file and save it as myModule.py
Define four functions and name them add, subtract, multiply, divide and write the
function body for each to return the calculated values for two or three numbers - set the default value to something smart to allow this

Create a new file in the same directory and save it as myCalculator.py
Make sure to write import myModule so that the math functions you've written are included in your driver (myCalculator.py).
Write a python program that:
- includes function to ask for user name, and two or three numbers (you need to decide how to allow the user to only enter two.)
- has docstrings for each function
- uses the functions defined in myModule.py to calculate addition, subtraction, multiplication, division of two or three numbers.
- Gets input from and displays output to the user

Write a second python program called myTrip.py that uses functions to calculate your trip's costs. Note: You should display the costs to the user with proper prompts.

Define a function called hotel_cost with one-argument nights as input. The hotel costs $140 per night. Therefore, the function hotel_cost should return 140 x nights.
Define a function called plane_ride_cost that takes city names as input parameters. The function should return a different price depending on the location for a round trip. Below are the valid destinations and their corresponding one-way trip prices.
- "Charlotte": $183
- "Tampa": $220
- "Pittsburgh": $222
- "Los Angeles": $475
Define a function called rental_car_cost with an argument called days. Calculate the cost of renting the car: Every day you rent the car costs $40 (cost = 40 x days). Return that cost.
Then, define a function called trip_cost that takes city names and days as arguments, and have your function return the sum of calling the rental_car_cost (days), hotel_cost (days), and plane_ride_cost (city) functions – for each city.
Modify your trip_cost function definition. Add a third argument, spending_money. Modify what the trip_cost function does. Add the variable spending_money to the sum that it returns.

How hard is it to modify your program to update the per day and flight costs? Could you use constants at the top of your program to facilitate this?

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