MichaelGitHubHype · April 3, 2018 00:16 · MichaelGitHubHype · Apr 3, 2018
diff --git a/ATM b/ATM
 # By: Michael Sheinman
 # Date: 2018-03-28 13:31:37.934330
 # File Name: ATM project
 # Description: Making a bank project
 import sys
 import os
 import time
 import re
 from datetime import datetime
 from decimal import Decimal


 # Function to change the user file. Complete
 def replaceFile(account, file):
    os.remove(account + '.txt')
    userFile = open(account + '.txt', 'w')
    # Rewrite here
    for line in range(len(file)):
        userFile.write(str(file[line]) + '\n')
    userFile.close()
    return file


 # Recursion to make sure the pin numbers are the same
 def equal(p):
    # If there is only one number left, we know all were equal
    if len(p) == 1:
        return True
    else:
        if p[0] == p[1]:
            # If they are equal, we have to check the next ones
            return equal(p[1:])
        else:
            return False

 # Handles special cases such as 20 & 8 transactions
 def is_special(account, file):
    myFile = open(account + 'history.txt')
    allTransactions = myFile.readlines()
    if len(allTransactions) % 8 == 0:
        now = datetime.now()
        current_time = "%s:%s %s / %s / %s" % (
        now.hour, now.minute, now.month, now.day, now.year)
        history_file = open(account + 'history.txt', 'a')
        history_file.write(current_time + '\n')
        history_file.write(str(-4.00) + '\n')
        if Decimal(file[4]) >= 4:
            file.pop(4)
            file.insert(4, str(Decimal(file[4]) -4))
        elif 0 < Decimal(file[4]) < 4:
            difference = 4 - Decimal(file[4])
            file.pop(4)
            file.pop(4)
            file.insert(4, str(0))
            file.insert(5, str(Decimal(file[5]) -difference))
            file = overdraftfunction(difference, file[2], current_time, file)
        else:
            to_be_used = file[5]
            file.pop(5)
            file.insert(5, Decimal(to_be_used) - 4)
    elif len(allTransactions) % 40 == 0:
        history_file = open(account + 'history.txt', 'r')
        myhistory = history_file.readlines()
        total = 0
        print("You have reached 20 transactions. Here they are:")
        for a in range(len(myhistory)):
            if not a % 2 == 0:
                total += Decimal(myhistory[a].split('\n')[0])
            sys.stdout.write(myhistory[a])
        if total > 0:
            print("\nYour net income is: %s" % total)
        else:
            print("\nYour net lose is: %s" % total)

    pass

 # Account details.
 def view(file):
    print(file)
    print("Account details:")
    print("_______________________")
    print("Card number: %s" % file[0])
    print("Balance: %s" % file[4])
    print("Overdraft: %s" % file[5])
    time.sleep(2)


 # Printing transaction history
 def print_transaction(account):
    transactions = open(account + 'history.txt', 'r')
    allTransactions = transactions.readlines()
    transactions.close()
    if len(allTransactions) == 0:
        print("No transactions yet")
    else:
        print("Transactions:")
        for tran in range(len(allTransactions)):
            sys.stdout.write(allTransactions[tran])


 # Replacing the pin
 def pin(current, account, file):
    while True:
        pin = input("Enter the new pin(must be 4 digits): ")
        if not re.search(r'^\d{4}$', pin):
            continue
        if equal(pin):
            continue
        if pin == current:
            continue
        if pins_check(pin):
            break
        else:
            print("This pin already exists")
    file.pop(1)
    file.insert(1, str(pin))
    print("Changing pin...")
    time.sleep(2)
    return replaceFile(account, file)


 def withdraw(money, overdraft, file, account, gone_overdraft):
    if overdraft == 'True':
        gone_overdraft = Decimal(gone_overdraft)
    allOptions = {'1': 20, '2': 40, '3': 60, '4': 80, '5': 100, '6': 120, '7': 'other'}
    while True:
        option = input("Pick a withdraw option: 1) $20 2) $40 3) $60 4) $80 5) $100 6) $120 7) Other: ")
        if option not in allOptions.keys():
            continue
        break
    withdrawen = allOptions[option]
    if withdrawen == 'other':
        while True:
            withdrawen = input("Enter an amount: ")
            try:
                if Decimal(withdrawen) > 0:
                    break
            except Exception:
                continue
    withdrawen = Decimal(withdrawen)
    if money > withdrawen or overdraft == 'True' and money + gone_overdraft > withdrawen:
        sys.stdout.write("dispensing money")
        name = ".....\n"
        for char in name:
            sys.stdout.write(char)
            sys.stdout.flush()
            time.sleep(.5)
        if money > withdrawen:
            file.pop(4)
            file.insert(4, str(money - withdrawen))
        else:
            difference = withdrawen - money
            gone_overdraft -= difference
            now = datetime.now()
            current_time = "%s:%s %s / %s / %s" % (
            now.hour, now.minute, now.month, now.day, now.year)
            file =  overdraftfunction(gone_overdraft, file[2], current_time, file)
            money = 0
            file.pop(4)
            file.pop(4)
            file.insert(4, money)
            file.insert(5, gone_overdraft)

        # Rewrite file point
        now = datetime.now()
        current_time = "%s:%s %s / %s / %s\n" % (now.hour, now.minute, now.month, now.day, now.year)
        history_file = open(account + 'history.txt', 'a')
        history_file.write(current_time + '\n')
        history_file.write(str(-withdrawen) + '\n')
        history_file.close()
        is_special(account, file)
        return replaceFile(account, file)
    else:
        print("No enough money")
        return file


 def deposit(file, userMoney, account):
    allDeposits = []
    while True:
        while True:
            money = input("Enter money to Deposit(done to quit): ".lower())
            try:
                if Decimal(money) < 0:
                    continue
                break
            except Exception:
                # Value error means a string was entered
                if money == "done":
                    break
                else:
                    continue

        if money != 'done':
            allDeposits.append(money)
            time.sleep(2)
            print("Deposit accepted")
        else:
            break
    total = 0
    for i in range(len(allDeposits)):
        total += Decimal(allDeposits[i])
    if file[3] == 'True' and Decimal(file[5]) < 500:
        if total + Decimal(file[5]) <= 500:
            newOverDraft = Decimal(file[5]) + total
        else:
            subtract = total - Decimal(file[5])
            newOverDraft = 500
            another_varaible_to_store_total = total - subtract
            userMoney += another_varaible_to_store_total
    else:
        userMoney += total
        if file[3] == 'True':
            newOverDraft = 500
        else:
            newOverDraft = "Not in action"
    file.pop(4)
    file.insert(4, str(userMoney))
    file.pop(5)
    file.insert(5, str(newOverDraft))
    now = datetime.now()
    current_time = "%s:%s %s / %s / %s\n" % (now.hour, now.minute, now.month, now.day, now.year)
    history_file = open(account + 'history.txt', 'a')
    history_file.write(current_time)
    history_file.write(str(total) + '\n')
    history_file.close()
    is_special(account, file)
    return replaceFile(account, file)


 # Function that will notify the user when they go beyond overdraft
 def overdraftfunction(howfar, email, time, file):
    import smtplib
    from email.mime.multipart import MIMEMultipart
    from email.mime.text import MIMEText

    # variables for to and from
    the_overdraft = str(Decimal(file[5]) - Decimal(howfar))
    charge = str(Decimal(the_overdraft) * Decimal(0.25))
    howfar -= Decimal(charge)
    myadd = "casinogames99@gmail.com"
    youradd = email

    msg = MIMEMultipart()
    msg['From'] = myadd
    msg['To'] = youradd
    msg['Subject'] = "ATM project"

    # body of text
    body = "Dir Sir/Madam, Your recent transaction at (%s) shows that you have gone into your overdraft.  " \
           "You overdraft protection is $%s.  " \
           "You have gone $%s into your overdraft, leaving you with a balance of $%s in your overdraft. " \
           "This is including a small service charge of $%s (25 percent of $%s) has been added to your account. Thank you." % \
           (time, file[5], the_overdraft, howfar, charge, the_overdraft)
    msg.attach(MIMEText(body, "plain"))

    server = smtplib.SMTP("smtp.gmail.com", 587)
    server.starttls()
    server.login(myadd, 'mikejack')
    text = msg.as_string()
    server.sendmail(myadd, youradd, text)
    server.quit()
    to_be_used = file[5]
    file.pop(5)
    file.insert(5, str(Decimal(to_be_used) - Decimal(charge)))
    return replaceFile(file[0], file)


 # Function that lets the user pay bills
 def bills(file, userMoney, account, overdraft, email, overdraftAmount):
    if overdraft == 'True':
        overdraftAmount = Decimal(overdraftAmount)
    billName = input("Enter bill name: ")
    while True:
        accountNumber = input("Enter account number(must be 6 digits): ")
        if re.search(r'^\d{6}$', accountNumber):
            break
    while True:
        amount = input("Enter amount to be paid: ")
        try:
            if Decimal(amount) > 0:
                break
            else:
                continue
        except Exception:
            # Exception indicates decimal error.
            continue
    amount = Decimal(amount)
    # The if statements checks where the money should go (overdraft/balance)
    if userMoney > amount or overdraft == 'True' and userMoney + overdraftAmount > amount:
        if userMoney > amount:
            userMoney -= amount
            file.pop(4)
            file.insert(4, userMoney)
        else:
            userMoney = 0
            goneIntoOverdraft = overdraftAmount - (amount - userMoney)
            now = datetime.now()
            current_time = "%s:%s %s / %s / %s" % (
            now.hour, now.minute, now.month, now.day, now.year)
            file = overdraftfunction(goneIntoOverdraft, email, current_time, file)
            file.pop(4)
            file.pop(4)
            file.insert(4, userMoney)
            file.insert(5, goneIntoOverdraft)
        now = datetime.now()
        current_time = "%s:%s %s / %s / %s\n" % (now.hour, now.minute, now.month, now.day, now.year)
        history_file = open(account + 'history.txt', 'a')
        history_file.write(current_time + '\n')
        history_file.write(str(-amount) + '\n')
        history_file.close()
        is_special(account, file)
        return replaceFile(account, file)
    else:
        print("Not enough money")
        return file


 def menu(file):
    while True:
        print("Welcome to the menu. You may pick one of the following options:"
              "\n1. View your account details"
              "\n2. Change PIN"
              "\n3. Withdraw money"
              "\n4. Deposit money"
              "\n5. Pay bills"
              "\n6. View History"
              "\n7. Quit")
        navigation = input("Pick option: ")
        if navigation == '1':
            view(file)
        elif navigation == '2':
            file = pin(file[1], file[0], file)
        elif navigation == '3':
            file = withdraw(Decimal(file[4]), file[3], file, file[0], file[5])
        elif navigation == '4':
            file = deposit(file, Decimal(file[4]), file[0])
        elif navigation == '5':
            file = bills(file, Decimal(file[4]), file[0], file[3], file[2], file[5])
        elif navigation == '6':
            print_transaction(file[0])
        elif navigation == '7':
            print_transaction(file[0])
            return


 def pins_check(pin_input):
    if os.path.exists('pins.txt'):
        pins = open('pins.txt', 'r')
        myFile = pins.readlines()
        pins.close()
        for pin in range(len(myFile)):
            new = myFile[pin].replace('\n', '')
            myFile.pop(pin)
            myFile.insert(pin, new)
        if pin_input in myFile:
            return False
        else:
            myPin = open('pins.txt', 'a')
            myPin.write(pin_input + '\n')
            myPin.close()
            return True

    else:
        pins = open('pins.txt', 'w')
        pins.write(pin_input + '\n')
        pins.close()
        return True

 def signup():
    # Card input
    while True:
        card = input("Enter the card number(must be 4 digits): ")
        if not re.search(r'^\d{4}$', card):
            continue
        if equal(card):
            continue
        break
    # PIN input
    while True:
        pin = input("Enter the pin number(must be 4 digits): ")
        if not re.search(r'^\d{4}$', pin):
            continue
        if equal(pin):
            continue
        if pins_check(pin):
            break
        else:
            print("The pin already exists")
    # Gmail input
    while True:
        email = input("Enter email(gmail only): ")
        if '@gmail.com' in email:
            break
    # Overdraft protection input
    while True:
        print("Would you like to sign up for overdraft protection?")
        prompt_overdraft = input("y for yes, n for no, i for 'what is overdraft?' ")
        if prompt_overdraft == 'y' or prompt_overdraft == 'yes':
            overdraft = 'True'
            break
        elif prompt_overdraft == 'n' or prompt_overdraft == 'no':
            overdraft = 'False'
            break
        elif prompt_overdraft == 'i':
            print("Overdraft allows you to go beyond 0 to maximum of $500\n"
                  "Each time you go beyond the overdraft, you will be charged with 25% of your overdraft\n"
                  "An email will be sent to you each time you go beyond the overdraft. ")
    userFile = open(card + '.txt', 'w')
    userFile.write(card + '\n' + pin + '\n' + email + '\n' + overdraft + '\n' + '0' + '\n')
    if overdraft == 'True':
        userFile.write('500')
    else:
        userFile.write('Not in action')
    userFile.close()
    user_history_file = open(card + 'history.txt', 'w')
    user_history_file.close()
    sys.stdout.write("redirecting to login")
    name = ".....\n"
    for char in name:
        sys.stdout.write(char)
        sys.stdout.flush()
        time.sleep(.6)
    login()


 def login():
    while True:
        card_login = input("Enter your card number: ")
        if not os.path.exists(card_login + '.txt'):
            continue
        break
    user_file = open(card_login + '.txt')
    userLines = user_file.readlines()
    # The process of removing the line spacing
    for line in range(len(userLines)):
        new = userLines[line].replace('\n', '')
        userLines.pop(line)
        userLines.insert(line, new)
    user_file.close()

    actual_pin = userLines[1]
    while True:
        pin_login = input("Enter your pin: ")
        if not pin_login == actual_pin:
            continue
        break

    menu(userLines)
    return


 while True:
    enter = input("Would you like to sign in(I) or sign up(U): ".lower())
    if enter == 'i':
        login()
        break
    elif enter == 'u':
        signup()
        break
	# By: Michael Sheinman
	# Date: 2018-03-28 13:31:37.934330
	# File Name: ATM project
	# Description: Making a bank project
	import sys
	import os
	import time
	import re
	from datetime import datetime
	from decimal import Decimal


	# Function to change the user file. Complete
	def replaceFile(account, file):
	os.remove(account + '.txt')
	userFile = open(account + '.txt', 'w')
	# Rewrite here
	for line in range(len(file)):
	userFile.write(str(file[line]) + '\n')
	userFile.close()
	return file


	# Recursion to make sure the pin numbers are the same
	def equal(p):
	# If there is only one number left, we know all were equal
	if len(p) == 1:
	return True
	else:
	if p[0] == p[1]:
	# If they are equal, we have to check the next ones
	return equal(p[1:])
	else:
	return False

	# Handles special cases such as 20 & 8 transactions
	def is_special(account, file):
	myFile = open(account + 'history.txt')
	allTransactions = myFile.readlines()
	if len(allTransactions) % 8 == 0:
	now = datetime.now()
	current_time = "%s:%s %s / %s / %s" % (
	now.hour, now.minute, now.month, now.day, now.year)
	history_file = open(account + 'history.txt', 'a')
	history_file.write(current_time + '\n')
	history_file.write(str(-4.00) + '\n')
	if Decimal(file[4]) >= 4:
	file.pop(4)
	file.insert(4, str(Decimal(file[4]) -4))
	elif 0 < Decimal(file[4]) < 4:
	difference = 4 - Decimal(file[4])
	file.pop(4)
	file.pop(4)
	file.insert(4, str(0))
	file.insert(5, str(Decimal(file[5]) -difference))
	file = overdraftfunction(difference, file[2], current_time, file)
	else:
	to_be_used = file[5]
	file.pop(5)
	file.insert(5, Decimal(to_be_used) - 4)
	elif len(allTransactions) % 40 == 0:
	history_file = open(account + 'history.txt', 'r')
	myhistory = history_file.readlines()
	total = 0
	print("You have reached 20 transactions. Here they are:")
	for a in range(len(myhistory)):
	if not a % 2 == 0:
	total += Decimal(myhistory[a].split('\n')[0])
	sys.stdout.write(myhistory[a])
	if total > 0:
	print("\nYour net income is: %s" % total)
	else:
	print("\nYour net lose is: %s" % total)

	pass

	# Account details.
	def view(file):
	print(file)
	print("Account details:")
	print("_______________________")
	print("Card number: %s" % file[0])
	print("Balance: %s" % file[4])
	print("Overdraft: %s" % file[5])
	time.sleep(2)


	# Printing transaction history
	def print_transaction(account):
	transactions = open(account + 'history.txt', 'r')
	allTransactions = transactions.readlines()
	transactions.close()
	if len(allTransactions) == 0:
	print("No transactions yet")
	else:
	print("Transactions:")
	for tran in range(len(allTransactions)):
	sys.stdout.write(allTransactions[tran])


	# Replacing the pin
	def pin(current, account, file):
	while True:
	pin = input("Enter the new pin(must be 4 digits): ")
	if not re.search(r'^\d{4}$', pin):
	continue
	if equal(pin):
	continue
	if pin == current:
	continue
	if pins_check(pin):
	break
	else:
	print("This pin already exists")
	file.pop(1)
	file.insert(1, str(pin))
	print("Changing pin...")
	time.sleep(2)
	return replaceFile(account, file)


	def withdraw(money, overdraft, file, account, gone_overdraft):
	if overdraft == 'True':
	gone_overdraft = Decimal(gone_overdraft)
	allOptions = {'1': 20, '2': 40, '3': 60, '4': 80, '5': 100, '6': 120, '7': 'other'}
	while True:
	option = input("Pick a withdraw option: 1) $20 2) $40 3) $60 4) $80 5) $100 6) $120 7) Other: ")
	if option not in allOptions.keys():
	continue
	break
	withdrawen = allOptions[option]
	if withdrawen == 'other':
	while True:
	withdrawen = input("Enter an amount: ")
	try:
	if Decimal(withdrawen) > 0:
	break
	except Exception:
	continue
	withdrawen = Decimal(withdrawen)
	if money > withdrawen or overdraft == 'True' and money + gone_overdraft > withdrawen:
	sys.stdout.write("dispensing money")
	name = ".....\n"
	for char in name:
	sys.stdout.write(char)
	sys.stdout.flush()
	time.sleep(.5)
	if money > withdrawen:
	file.pop(4)
	file.insert(4, str(money - withdrawen))
	else:
	difference = withdrawen - money
	gone_overdraft -= difference
	now = datetime.now()
	current_time = "%s:%s %s / %s / %s" % (
	now.hour, now.minute, now.month, now.day, now.year)
	file = overdraftfunction(gone_overdraft, file[2], current_time, file)
	money = 0
	file.pop(4)
	file.pop(4)
	file.insert(4, money)
	file.insert(5, gone_overdraft)

	# Rewrite file point
	now = datetime.now()
	current_time = "%s:%s %s / %s / %s\n" % (now.hour, now.minute, now.month, now.day, now.year)
	history_file = open(account + 'history.txt', 'a')
	history_file.write(current_time + '\n')
	history_file.write(str(-withdrawen) + '\n')
	history_file.close()
	is_special(account, file)
	return replaceFile(account, file)
	else:
	print("No enough money")
	return file


	def deposit(file, userMoney, account):
	allDeposits = []
	while True:
	while True:
	money = input("Enter money to Deposit(done to quit): ".lower())
	try:
	if Decimal(money) < 0:
	continue
	break
	except Exception:
	# Value error means a string was entered
	if money == "done":
	break
	else:
	continue

	if money != 'done':
	allDeposits.append(money)
	time.sleep(2)
	print("Deposit accepted")
	else:
	break
	total = 0
	for i in range(len(allDeposits)):
	total += Decimal(allDeposits[i])
	if file[3] == 'True' and Decimal(file[5]) < 500:
	if total + Decimal(file[5]) <= 500:
	newOverDraft = Decimal(file[5]) + total
	else:
	subtract = total - Decimal(file[5])
	newOverDraft = 500
	another_varaible_to_store_total = total - subtract
	userMoney += another_varaible_to_store_total
	else:
	userMoney += total
	if file[3] == 'True':
	newOverDraft = 500
	else:
	newOverDraft = "Not in action"
	file.pop(4)
	file.insert(4, str(userMoney))
	file.pop(5)
	file.insert(5, str(newOverDraft))
	now = datetime.now()
	current_time = "%s:%s %s / %s / %s\n" % (now.hour, now.minute, now.month, now.day, now.year)
	history_file = open(account + 'history.txt', 'a')
	history_file.write(current_time)
	history_file.write(str(total) + '\n')
	history_file.close()
	is_special(account, file)
	return replaceFile(account, file)


	# Function that will notify the user when they go beyond overdraft
	def overdraftfunction(howfar, email, time, file):
	import smtplib
	from email.mime.multipart import MIMEMultipart
	from email.mime.text import MIMEText

	# variables for to and from
	the_overdraft = str(Decimal(file[5]) - Decimal(howfar))
	charge = str(Decimal(the_overdraft) * Decimal(0.25))
	howfar -= Decimal(charge)
	myadd = "casinogames99@gmail.com"
	youradd = email

	msg = MIMEMultipart()
	msg['From'] = myadd
	msg['To'] = youradd
	msg['Subject'] = "ATM project"

	# body of text
	body = "Dir Sir/Madam, Your recent transaction at (%s) shows that you have gone into your overdraft. " \
	"You overdraft protection is $%s. " \
	"You have gone $%s into your overdraft, leaving you with a balance of $%s in your overdraft. " \
	"This is including a small service charge of $%s (25 percent of $%s) has been added to your account. Thank you." % \
	(time, file[5], the_overdraft, howfar, charge, the_overdraft)
	msg.attach(MIMEText(body, "plain"))

	server = smtplib.SMTP("smtp.gmail.com", 587)
	server.starttls()
	server.login(myadd, 'mikejack')
	text = msg.as_string()
	server.sendmail(myadd, youradd, text)
	server.quit()
	to_be_used = file[5]
	file.pop(5)
	file.insert(5, str(Decimal(to_be_used) - Decimal(charge)))
	return replaceFile(file[0], file)


	# Function that lets the user pay bills
	def bills(file, userMoney, account, overdraft, email, overdraftAmount):
	if overdraft == 'True':
	overdraftAmount = Decimal(overdraftAmount)
	billName = input("Enter bill name: ")
	while True:
	accountNumber = input("Enter account number(must be 6 digits): ")
	if re.search(r'^\d{6}$', accountNumber):
	break
	while True:
	amount = input("Enter amount to be paid: ")
	try:
	if Decimal(amount) > 0:
	break
	else:
	continue
	except Exception:
	# Exception indicates decimal error.
	continue
	amount = Decimal(amount)
	# The if statements checks where the money should go (overdraft/balance)
	if userMoney > amount or overdraft == 'True' and userMoney + overdraftAmount > amount:
	if userMoney > amount:
	userMoney -= amount
	file.pop(4)
	file.insert(4, userMoney)
	else:
	userMoney = 0
	goneIntoOverdraft = overdraftAmount - (amount - userMoney)
	now = datetime.now()
	current_time = "%s:%s %s / %s / %s" % (
	now.hour, now.minute, now.month, now.day, now.year)
	file = overdraftfunction(goneIntoOverdraft, email, current_time, file)
	file.pop(4)
	file.pop(4)
	file.insert(4, userMoney)
	file.insert(5, goneIntoOverdraft)
	now = datetime.now()
	current_time = "%s:%s %s / %s / %s\n" % (now.hour, now.minute, now.month, now.day, now.year)
	history_file = open(account + 'history.txt', 'a')
	history_file.write(current_time + '\n')
	history_file.write(str(-amount) + '\n')
	history_file.close()
	is_special(account, file)
	return replaceFile(account, file)
	else:
	print("Not enough money")
	return file


	def menu(file):
	while True:
	print("Welcome to the menu. You may pick one of the following options:"
	"\n1. View your account details"
	"\n2. Change PIN"
	"\n3. Withdraw money"
	"\n4. Deposit money"
	"\n5. Pay bills"
	"\n6. View History"
	"\n7. Quit")
	navigation = input("Pick option: ")
	if navigation == '1':
	view(file)
	elif navigation == '2':
	file = pin(file[1], file[0], file)
	elif navigation == '3':
	file = withdraw(Decimal(file[4]), file[3], file, file[0], file[5])
	elif navigation == '4':
	file = deposit(file, Decimal(file[4]), file[0])
	elif navigation == '5':
	file = bills(file, Decimal(file[4]), file[0], file[3], file[2], file[5])
	elif navigation == '6':
	print_transaction(file[0])
	elif navigation == '7':
	print_transaction(file[0])
	return


	def pins_check(pin_input):
	if os.path.exists('pins.txt'):
	pins = open('pins.txt', 'r')
	myFile = pins.readlines()
	pins.close()
	for pin in range(len(myFile)):
	new = myFile[pin].replace('\n', '')
	myFile.pop(pin)
	myFile.insert(pin, new)
	if pin_input in myFile:
	return False
	else:
	myPin = open('pins.txt', 'a')
	myPin.write(pin_input + '\n')
	myPin.close()
	return True

	else:
	pins = open('pins.txt', 'w')
	pins.write(pin_input + '\n')
	pins.close()
	return True

	def signup():
	# Card input
	while True:
	card = input("Enter the card number(must be 4 digits): ")
	if not re.search(r'^\d{4}$', card):
	continue
	if equal(card):
	continue
	break
	# PIN input
	while True:
	pin = input("Enter the pin number(must be 4 digits): ")
	if not re.search(r'^\d{4}$', pin):
	continue
	if equal(pin):
	continue
	if pins_check(pin):
	break
	else:
	print("The pin already exists")
	# Gmail input
	while True:
	email = input("Enter email(gmail only): ")
	if '@gmail.com' in email:
	break
	# Overdraft protection input
	while True:
	print("Would you like to sign up for overdraft protection?")
	prompt_overdraft = input("y for yes, n for no, i for 'what is overdraft?' ")
	if prompt_overdraft == 'y' or prompt_overdraft == 'yes':
	overdraft = 'True'
	break
	elif prompt_overdraft == 'n' or prompt_overdraft == 'no':
	overdraft = 'False'
	break
	elif prompt_overdraft == 'i':
	print("Overdraft allows you to go beyond 0 to maximum of $500\n"
	"Each time you go beyond the overdraft, you will be charged with 25% of your overdraft\n"
	"An email will be sent to you each time you go beyond the overdraft. ")
	userFile = open(card + '.txt', 'w')
	userFile.write(card + '\n' + pin + '\n' + email + '\n' + overdraft + '\n' + '0' + '\n')
	if overdraft == 'True':
	userFile.write('500')
	else:
	userFile.write('Not in action')
	userFile.close()
	user_history_file = open(card + 'history.txt', 'w')
	user_history_file.close()
	sys.stdout.write("redirecting to login")
	name = ".....\n"
	for char in name:
	sys.stdout.write(char)
	sys.stdout.flush()
	time.sleep(.6)
	login()


	def login():
	while True:
	card_login = input("Enter your card number: ")
	if not os.path.exists(card_login + '.txt'):
	continue
	break
	user_file = open(card_login + '.txt')
	userLines = user_file.readlines()
	# The process of removing the line spacing
	for line in range(len(userLines)):
	new = userLines[line].replace('\n', '')
	userLines.pop(line)
	userLines.insert(line, new)
	user_file.close()

	actual_pin = userLines[1]
	while True:
	pin_login = input("Enter your pin: ")
	if not pin_login == actual_pin:
	continue
	break

	menu(userLines)
	return


	while True:
	enter = input("Would you like to sign in(I) or sign up(U): ".lower())
	if enter == 'i':
	login()
	break
	elif enter == 'u':
	signup()
	break