OOB Command-Input-Style Python Code in Python

BankSimulator.py

# Bank Simulator
# A Flexible Command Input OOP
# Use this as an Example to make Your Command-Input-Style Code
import time
import sys

Money = 0

# List of Functions to Execute
class BankCommands():
    
    # Display how Much Money is in Your Account.
    def Balance():
        global Money
        global User
        print("\n[SYS] Your Current Balance | {} | {}.\n".format(User, Money))

    # Take Money Out of Your Account.
    def Deposit():
        global Money

        print("\n[SYS] How much do you want to deposit?")

        # Give an Error when you don't Type and Integer.
        try:
            DepositAmount = float(input("[INPUT] Amount: "))
            Money = Money + DepositAmount
            print("[SYS] {} was put into your account.\n".format(DepositAmount))
        except:
            print("[ERROR] Invalid Input.\n")
    
    # Take Money Out of Your Account.
    def Withdraw():
        global Money

        print("\n[SYS] How much money would you like to withdraw?")
        
        # Give an Error when you don't Type and Integer.
        try:
            WithdrawAmount = float(input("[INPUT] Amount: "))

            while Money - WithdrawAmount < 0:
                print("[ERROR] Maximum withdrawal amount is: {}.".format(Money))
                WithdrawAmount = float(input("[INPUT] Amount: "))

            print("[SYS] {} was withdrawed from your account.\n".format(WithdrawAmount))
            Money = Money - WithdrawAmount
        except:
            print("[ERROR] Invalid Input.\n")

    # Exit the Program.
    def Exit():
        print("\n[SYS] Thank you for using the Bank Simulator, {}.".format(User))
        time.sleep(1)
        print("[SYS] See you later!")
        time.sleep(3)
        sys.exit()

    # Display the Help Command.
    def Help():
        print("\n[SYS] List of Commands:-")
        time.sleep(0.1)
        print("| Balance or Bal: Shows how much money is in your account.")
        time.sleep(0.1)
        print("| Deposit or Dep: Put money into your account.")
        time.sleep(0.1)
        print("| Withdraw or Wit: Take out money from your account.")
        time.sleep(0.1)
        print("| Exit: Exit the Program.")
        time.sleep(0.1)
        print("| Help: Shows this.\n")


class MainProgram():
    # What Function to Execute Based on Command Input.
    def Start():
        if command == "balance" or command == "bal":
            time.sleep(0.2)
            BankCommands.Balance()

        elif command == "deposit" or command == "dep":
            time.sleep(0.2)
            BankCommands.Deposit()
            
        elif command == "withdraw" or command == "wit":
            time.sleep(0.2)
            BankCommands.Withdraw()

        elif command == "exit":
            time.sleep(0.2)
            BankCommands.Exit()

        elif command == "help":
            time.sleep(0.2)
            BankCommands.Help()

        else:
            print("[ERROR] Command not found, try 'Help'.")


# Intro
print("[SYS] Welcome to the Bank Simulator, enter a command below! Type 'Help' for more details.")
time.sleep(0.1)
print("[SYS] To get started, enter your Username.")
User = input("[INPUT] Username: ")
time.sleep(0.1)
print("[SYS] Welcome to the bank, {}.\n".format(User))
time.sleep(0.2)

# Command Input
while True:
    time.sleep(0.1)
    command = input("[Command]$ ").lower()
    MainProgram.Start()