Fun with Statistics Part II In this practice program, you will be modify the program you wrote for Practice 5 - Fun with Statistics, to append the user input to a list. When the user is done entering
# Welcome to Mula Bank
# Enter 'start' to begin or 'exit' to leave: start
#
# Enter user ID: any_user_id
# Enter password: any_password
#
# Login successful!
#
# 1. View Balance
# 2. Deposit
# 3. Withdraw
# 4. Exit
#
# Enter your choice: 1
# Your current balance is: $500.00
#
# Enter your choice: 2
# Enter deposit amount: 200
# Deposit successful. Your new balance is: $700.00
#
# Enter your choice: 3
# Enter withdraw amount: 100
# Withdrawal successful. Your new balance is: $600.00
#
# Enter your choice: 4
# Do you want a receipt? (yes/no): yes
# Here is your receipt. Your final balance is: $600.00
#
# Thank you for using Mula Bank. Goodbye!
def front_page():
"""
Displays the front page with a welcome message and prompts the user to start or exit.
"""
print("Welcome to Mula Bank")
while True:
start = input("\nEnter 'start' to begin or 'exit' to leave: ").lower()
if start == 'start':
break
elif start == 'exit':
print("Thank you for visiting Mula Bank. Goodbye!")
exit()
else:
print("Invalid input. Please enter 'start' or 'exit'.")
def login():
"""
Prompts the user to log in with a user ID and password.
Any entered user ID and password are accepted as valid.
"""
print("Please log in to continue.")
while True:
entered_user_id = input("Enter user ID: ")
entered_password = input("Enter password: ")
# Accept any user ID and password as valid
print("\nLogin successful!\n")
break
def print_welcome():
"""
Prints the main menu options to the user.
"""
print("\n1. View Balance")
print("2. Deposit")
print("3. Withdraw")
print("4. Exit")
def get_user_input(prompt, input_type):
"""
Prompts the user for input and returns it converted to the specified type.
Args:
prompt (str): The input prompt to display to the user.
input_type (type): The type to convert the input to (int or float).
Returns:
input_type: The user input converted to the specified type.
"""
while True:
try:
return input_type(input(prompt))
except ValueError:
print(f"Invalid input. Please enter a valid {input_type.__name__}.")
def get_choice():
"""
Prompts and returns a valid menu choice.
Returns:
int: The user's menu choice (1-4).
"""
while True:
choice = get_user_input("Enter your choice: ", int)
if 1 <= choice <= 4:
return choice
print("Invalid choice. Please enter a number between 1 and 4.")
def get_deposit_amt():
"""
Prompts and returns a valid deposit amount.
Returns:
float: The user's deposit amount (>= 0).
"""
while True:
amount = get_user_input("Enter deposit amount: ", float)
if amount >= 0:
return amount
print("Deposit amount must be non-negative.")
def get_withdraw_amt(balance):
"""
Prompts and returns a valid withdrawal amount.
Args:
balance (float): The current balance of the user.
Returns:
float: The user's withdrawal amount (0 <= amount <= balance).
"""
while True:
amount = get_user_input("Enter withdraw amount: ", float)
if 0 <= amount <= balance:
return amount
print(f"Invalid amount. Please enter a value between 0 and {balance}.")
def ask_for_receipt(balance):
"""
Asks the user if they want a receipt and prints it if requested.
Args:
balance (float): The final balance of the user.
"""
while True:
receipt = input("Do you want a receipt? (yes/no): ").lower()
if receipt == 'yes':
print(f"Here is your receipt. Your final balance is: ${balance:.2f}")
break
elif receipt == 'no':
break
else:
print("Invalid input. Please enter 'yes' or 'no'.")
def main():
"""
Main function to drive the program.
"""
front_page()
login()
balance = 500.0 # Initial balance
while True:
print_welcome()
choice = get_choice()
if choice == 1:
print(f"Your current balance is: ${balance:.2f}")
elif choice == 2:
deposit = get_deposit_amt()
balance += deposit
print(f"Deposit successful. Your new balance is: ${balance:.2f}")
elif choice == 3:
withdraw = get_withdraw_amt(balance)
balance -= withdraw
print(f"Withdrawal successful. Your new balance is: ${balance:.2f}")
elif choice == 4:
ask_for_receipt(balance)
print("Thank you for using Mula Bank. Goodbye!")
break
if __name__ == "__main__":
main()
