185. Python Program to Make a Bank Account Class

Overview

Methods that change an attribute, and a method that protects its object by raising an error.

Problem Statement

Define a class BankAccount with an owner and a balance, and two methods:

• deposit(amount) adds the amount to the balance.
• withdraw(amount) takes the amount out. If the amount is more than the balance, it raises a ValueError and changes nothing.

Read the owner's name, the starting balance, then the number of commands, then one command per line: deposit 200 or withdraw 100 (whole numbers). Run each command on the account. When a withdrawal fails, catch the error and print a line like Cannot withdraw 1000: not enough money. At the end, print the balance like this: Sunny's balance: 650.

Use input() with no prompt text: the tests type the input for you, and a prompt would end up in your output.

Input

The owner, the starting balance, the number of commands, then the commands. Example:

Sunny
500
4
deposit 200
withdraw 100
withdraw 1000
deposit 50

Output

The output for that example:

Cannot withdraw 1000: not enough money
Sunny's balance: 650

The tests try 4 different inputs.