startingCodeAssign2_2020/ XXXXXXXXXXtxt
123456
7890
4500.0
Deposit
3000.0
Deposit
4000.0
Rent
2000.0
startingCodeAssign2_2020/main.py
import tkinter as tk
from tkinter import *
from tkinter import messagebox
from pylab import plot, show, xlabel, ylabel
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
from matplotlib.figure import Figure
from collections import defaultdict
from pprint import pprint
import matplotlib.pyplot as plt
from moneymanager import MoneyManage
win = tk.Tk()
#Set window size here to '540 x 640'
#Set the window title to 'FedUni Money Manager'
#The user number and associated variable
user_number_var = tk.StringVar()
#This is set as a default for ease of testing
user_number_var.set('123456')
user_number_entry = tk.Entry(win, textvariable=user_number_var)
user_number_entry.focus_set()
#The pin number entry and associated variables
pin_number_var = tk.StringVar()
#This is set as a default for ease of testing
pin_number_var.set('7890')
#Modify the following to display a series of * rather than the pin ie **** not 1234
user_pin_entry = tk.Entry(win, text='PIN Number', textvariable=pin_number_var)
#set the user file by default to an empty string
user_file = ''
# The balance label and associated variable
alance_var = tk.StringVar()
alance_var.set('Balance: $0.00')
alance_label = tk.Label(win, textvariable=balance_var)
# The Entry widget to accept a numerical value to deposit or withdraw
#amount_var = tk.StringVar()
tkVar=StringVar(win)
amount_entry = tk.Entry(win)
entry_type=tk.Entry(win)
# The transaction text widget holds text of the transactions
transaction_text_widget = tk.Text(win, height=10, width=48)
# The money manager object we will work with
user = MoneyManager()
# XXXXXXXXXXButton Handlers for Login Screen ----------
def clear_pin_entry(event):
'''Function to clear the PIN number entry when the Clear / Cancel button is clicked.'''
# Clear the pin number entry here
def handle_pin_button(event):
'''Function to add the number of the button clicked to the PIN number entry.'''
# Limit to 4 chars in length
# Set the new pin number on the pin_number_va
def log_in(event):
'''Function to log in to the banking system using a known user number and PIN.'''
global use
global pin_number_va
global user_file
global user_num_entry
# Create the filename from the entered account number with '.txt' on the end
# Try to open the account file for reading
# Open the account file for reading
# First line is account numbe
# Second line is PIN number, raise exceptionk if the PIN entered doesn't match account PIN read
# Read third and fourth lines (balance and interest rate)
# Section to read account transactions from file - start an infinite 'do-while' loop here
# Attempt to read a line from the account file,
eak if we've hit the end of the file. If we
# read a line then it's the transaction type, so read the next line which will be the transaction amount.
# and then create a tuple from both lines and add it to the account's transaction_list
# Close the file now we're finished with it
# Catch exception if we couldn't open the file or PIN entered did not match account PIN
# Show e
or messagebox and & reset BankAccount object to default...
# ...also clear PIN entry and change focus to account number entry
# Got here without raising an exception? Then we can log in - so remove the widgets and display the account screen
# XXXXXXXXXXButton Handlers for User Screen ----------
def save_and_log_out():
'''Function to overwrite the user file with the cu
ent state of
the user object (i.e. including any new transactions), remove
all widgets and display the login screen.'''
global use
# Save the account with any new transactions
# Reset the bank acount object
# Reset the account number and pin to blank
# Remove all widgets and display the login screen again
def perform_deposit():
'''Function to add a deposit for the amount in the amount entry to the
user's transaction list.'''
global user
global amount_entry
global balance_label
global balance_va
# Try to increase the account balance and append the deposit to the account file
# Get the cash amount to deposit. Note: We check legality inside account's deposit method
# Deposit funds
# Update the transaction widget with the new transaction by calling account.get_transaction_string()
# Note: Configure the text widget to be state='normal' first, then delete contents, then instert new
# contents, and finally configure back to state='disabled' so it cannot be user edited.
# Change the balance label to reflect the new balance
# Clear the amount entry
# Update the interest graph with our new balance
# Catch and display exception as a 'showe
or' messagebox with a title of 'Transaction E
or' and the text of the exception
def perform_transaction():
'''Function to add the entry the amount in the amount entry from the user balance and add an entry to the transaction list.'''
global user
global amount_entry
global balance_label
global balance_va
global entry_type
# Try to decrease the account balance and append the deposit to the account file
# Get the cash amount to use. Note: We check legality inside account's withdraw_funds method
# Get the type of entry that will be added ie rent etc
# Withdraw funds from the balance
# Update the transaction widget with the new transaction by calling user.get_transaction_string()
# Note: Configure the text widget to be state='normal' first, then delete contents, then instert new
# contents, and finally configure back to state='disabled' so it cannot be user edited.
# Change the balance label to reflect the new balance
# Clear the amount entry
# Update the graph
# Catch and display any returned exception as a messagebox 'showe
or'
def remove_all_widgets():
'''Function to remove all the widgets from the window.'''
global win
for widget in win.winfo_children():
XXXXXXXXXXwidget.grid_remove()
def read_line_from_user_file():
'''Function to read a line from the users file but not the last newline character.
Note: The user_file must be open to read from for this function to succeed.'''
global user_file
return user_file.readline()[0:-1]
def plot_spending_graph():
'''Function to plot the user spending here.'''
# YOUR CODE to generate the x and y lists here which will be plotted
#Your code to display the graph on the screen here - do this last
# XXXXXXXXXXUI Drawing Functions ----------
def create_login_screen():
'''Function to create the login screen.'''
# ----- Row 0 -----
# 'FedUni Money Manager' label here. Font size is 28.
# ----- Row 1 -----
# Acount Number / Pin label here
# Account number entry here
# Account pin entry here
# ----- Row 2 -----
# Buttons 1, 2 and 3 here. Buttons are bound to 'handle_pin_button' function via '
' event.
# ----- Row 3 -----
# Buttons 4, 5 and 6 here. Buttons are bound to 'handle_pin_button' function via '' event.
# ----- Row 4 -----
# Buttons 7, 8 and 9 here. Buttons are bound to 'handle_pin_button' function via '' event.
# ----- Row 5 -----
# Cancel/Clear button here. 'bg' and 'activebackground' should be 'red'. But calls 'clear_pin_entry' function.
# Button 0 here
# Login button here. 'bg' and 'activebackground' should be 'green'). Button calls 'log_in' function.
# ----- Set column & row weights -----
# Set column and row weights. There are 5 columns and 6 rows (0..4 and 0..5 respectively)
def create_user_screen():
'''Function to create the user screen.'''
global amount_text
global amount_label
global transaction_text_widget
global balance_va
# ----- Row 0 -----
# FedUni Banking label here. Font size should be 24.
# ----- Row 1 -----
# Account number label here