money manager.py

class MoneyManager(): user_number = '0' pin_number = '' balance = 0.0 entry_type = '' transaction_list = []

def __init__(self): '''Constructor to set username to '', pin_number to an empty string, balance to 0.0, and transaction_list to an empty list.''' self.user_number = '0' self.pin_number = '' self.balance = 0.0 self.transaction_list = [] def add_entry(self, amount, entry_type): '''Function to add and entry an amount to the tool. Raises an exception if it receives a value for amount that cannot be cast to float. Raises an exception if the entry_type is not valid - i.e. not food, rent, bills, entertainment or other''' try: amount_to entry_type = float(amount) if(amount_to_entry_type > self.balance): raise Exception('The entry_type is not valid') self.balance = float(self.balance) - amount_to_entry_type transaction = ('Withdrawal',amount_to_entry_type) self.transaction_list.append(transaction) #print(self.balance) except Exception as error: print(repr(error))

def deposit_funds(self, amount): '''Function to deposit an amount to the user balance. Raises an exception if it receives a value that cannot be cast to float. ''' try: amount_to_deposit = float(amount) self.balance = float(self.balance) + amount_to_deposit transaction = ('Deposit',amount_to_deposit) self.transaction_list.append(transaction) #print(self.balance) except Exception as error: print(repr(error))

def get_transaction_string(self): '''Function to create and return a string of the transaction list. Each transaction consists of two lines - either the word "Deposit" or the entry type - food etc - on the first line, and then the amount deposited or entry amount on the next line.''' #transaction = self.transaction_list[-1] transaction = self.transaction_list transaction_string = '' for index, t in enumerate(self.transaction_list): transaction_string = transaction_string + str(t[0])+' '+str(t[1])+' ' return transaction_string

def save_to_file(self): '''Function to overwrite the user text file with the current user details. user number, pin number, and balance (in that precise order) are the first four lines - there are then two lines per transaction as outlined in the above 'get_transaction_string' function.'''

file = open(str(BankAccount.account_number) +'.txt',"w")

file.write(BankAccount.account_number + ' ')

file.write(BankAccount.pin_number + ' ')

file.write(str(BankAccount.balance) + ' ')

file.write(str(BankAccount.interest_rate) + ' ')

for a in BankAccount.transaction_list:

file.write(str(a[0]) + ' ')

file.write(str(a[1]) + ' ')

file.close()