The __str__ method of the Bank class (in bank.py) returns a string containing the accounts in random order. Design and implement a change that causes the accounts to be placed in the string in ascending order of name.

Implement the __str__ method of the bank class so that it sorts the account values before printing them to the console.

In order to sort the account values you will need to define the __eq__ and __lt__ methods in the SavingsAccount class (in savingsaccount.py).

The __eq__ method should return True if the account names are equal during a comparison, False otherwise.

The __lt__ method should return True if the name of one account is less than the name of another, False otherwise.

The program should output in the following format:

Test for createBank: Name: Jack PIN: 1001 Balance: 653.0 Name: Mark PIN: 1000 Balance: 377.0 ... ... ... Name: Name7 PIN: 1006 Balance: 100.0

bank.py

"""

File: bank.py

Project 9.3

The str for Bank returns a string of accounts sorted by name.

"""

import pickle

import random

from savingsaccount import SavingsAccount

class Bank:

    """This class represents a bank as a collection of savings accounts.

    An optional file name is also associated

    with the bank, to allow transfer of accounts to and

    from permanent file storage."""

    """The state of the bank is a dictionary of accounts and a file name.  If the file name is None, a file name for the bank has not yet been established."""

    def __init__(self, fileName = None):

        """Creates a new dictionary to hold the accounts.

        If a file name is provided, loads the accounts from

        a file of pickled accounts."""

        self.accounts = {}

        self.fileName = fileName

        if fileName != None:

            fileObj = open(fileName, 'rb')

            while True:

                try:

                    account = pickle.load(fileObj)

                    self.add(account)

                except Exception:

                    fileObj.close()

                    break

    def __str__(self):

        """Returns the string representation of the bank."""

        nameSort = sorted(self.accounts)

        return "\n".join(map(str, nameSort))

    def makeKey(self, name, pin):

        """Returns a key for the account."""

        return name + "/" + pin

    def add(self, account):

        """Adds the account to the bank."""

        key = self.makeKey(account.getName(), account.getPin())

        self.accounts[key] = account

    def remove(self, name, pin):

        """Removes the account from the bank and

        and returns it, or None if the account does

        not exist."""

        key = self.makeKey(name, pin)

        return self.accounts.pop(key, None)

    def get(self, name, pin):

        """Returns the account from the bank,

        or returns None if the account does

        not exist."""

        key = self.makeKey(name, pin)

        return self.accounts.get(key, None)

    def computeInterest(self):

        """Computes and returns the interest on

        all accounts."""

        total = 0

        for account in self._accounts.values():

            total += account.computeInterest()

        return total

    def getKeys(self):

        """Returns a sorted list of keys."""

        return []

    def save(self, fileName = None):

        """Saves pickled accounts to a file.  The parameter

        allows the user to change file names."""

        if fileName != None:

            self.fileName = fileName

        elif self.fileName == None:

            return

        fileObj = open(self.fileName, 'wb')

        for account in self.accounts.values():

            pickle.dump(account, fileObj)

        fileObj.close()

# Functions for testing



def createBank(numAccounts = 1):

    """Returns a new bank with the given number of

    accounts."""

    names = ("Brandon", "Molly", "Elena", "Mark", "Tricia",

             "Ken", "Jill", "Jack")

    bank = Bank()

    upperPin = numAccounts + 1000

    for pinNumber in range(1000, upperPin):

        name = random.choice(names)

        balance = float(random.randint(100, 1000))

        bank.add(SavingsAccount(name, str(pinNumber), balance))

    return bank

def testAccount():

    """Test function for savings account."""

    account = SavingsAccount("Ken", "1000", 500.00)

    print(account)

    print(account.deposit(100))

    print("Expect 600:", account.getBalance())

    print(account.deposit(-50))

    print("Expect 600:", account.getBalance())

    print(account.withdraw(100))

    print("Expect 500:", account.getBalance())

    print(account.withdraw(-50))

    print("Expect 500:", account.getBalance())

    print(account.withdraw(100000))

    print("Expect 500:", account.getBalance())

def main(number = 10, fileName = None):

    """Creates and prints a bank, either from

    the optional file name argument or from the optional

    number."""

    if fileName:

        bank = Bank(fileName)

    else:

        bank = createBank(number)

    print(bank)

if __name__ == "__main__":

    main()

I am just about to the character limit on this question so the other file will be in images.

Question

The __str__ method of the Bank class (in bank.py) returns a string containing the accounts in random order. Design and implement a change that causes the accounts to be placed in the string in ascending order of name.Implement the __str__ method of the bank class so that it sorts the account values before printing them to the console.In order to sort the account values you will need to define the __eq__ and __lt__ methods in the SavingsAccount class (in savingsaccount.py).The __eq__ method should return True if the account names are equal during a comparison, False otherwise.The __lt__ method should return True if the name of one account is less than the name of another, False otherwise.The program should output in the following format:Test for createBank: Name: Jack PIN: 1001 Balance: 653.0 Name: Mark PIN: 1000 Balance: 377.0 ... ... ... Name: Name7 PIN: 1006 Balance: 100.0  bank.py &#34;&#34;&#34;File: bank.pyProject 9.3The str for Bank returns a string of accounts sorted by name.&#34;&#34;&#34;import pickleimport randomfrom savingsaccount import SavingsAccountclass Bank:    &#34;&#34;&#34;This class represents a bank as a collection of savings accounts.    An optional file name is also associated    with the bank, to allow transfer of accounts to and    from permanent file storage.&#34;&#34;&#34;    &#34;&#34;&#34;The state of the bank is a dictionary of accounts and a file name.  If the file name is None, a file name for the bank has not yet been established.&#34;&#34;&#34;    def __init__(self, fileName = None):        &#34;&#34;&#34;Creates a new dictionary to hold the accounts.        If a file name is provided, loads the accounts from        a file of pickled accounts.&#34;&#34;&#34;        self.accounts = {}        self.fileName = fileName        if fileName != None:            fileObj = open(fileName, 'rb')            while True:                try:                    account = pickle.load(fileObj)                    self.add(account)                except Exception:                    fileObj.close()                    break    def __str__(self):        &#34;&#34;&#34;Returns the string representation of the bank.&#34;&#34;&#34;        nameSort = sorted(self.accounts)        return &#34;
&#34;.join(map(str, nameSort))    def makeKey(self, name, pin):        &#34;&#34;&#34;Returns a key for the account.&#34;&#34;&#34;        return name + &#34;/&#34; + pin    def add(self, account):        &#34;&#34;&#34;Adds the account to the bank.&#34;&#34;&#34;        key = self.makeKey(account.getName(), account.getPin())        self.accounts[key] = account    def remove(self, name, pin):        &#34;&#34;&#34;Removes the account from the bank and        and returns it, or None if the account does        not exist.&#34;&#34;&#34;        key = self.makeKey(name, pin)        return self.accounts.pop(key, None)    def get(self, name, pin):        &#34;&#34;&#34;Returns the account from the bank,        or returns None if the account does        not exist.&#34;&#34;&#34;        key = self.makeKey(name, pin)        return self.accounts.get(key, None)    def computeInterest(self):        &#34;&#34;&#34;Computes and returns the interest on        all accounts.&#34;&#34;&#34;        total = 0        for account in self._accounts.values():            total += account.computeInterest()        return total    def getKeys(self):        &#34;&#34;&#34;Returns a sorted list of keys.&#34;&#34;&#34;        return []    def save(self, fileName = None):        &#34;&#34;&#34;Saves pickled accounts to a file.  The parameter        allows the user to change file names.&#34;&#34;&#34;        if fileName != None:            self.fileName = fileName        elif self.fileName == None:            return        fileObj = open(self.fileName, 'wb')        for account in self.accounts.values():            pickle.dump(account, fileObj)        fileObj.close()# Functions for testing       def createBank(numAccounts = 1):    &#34;&#34;&#34;Returns a new bank with the given number of     accounts.&#34;&#34;&#34;    names = (&#34;Brandon&#34;, &#34;Molly&#34;, &#34;Elena&#34;, &#34;Mark&#34;, &#34;Tricia&#34;,             &#34;Ken&#34;, &#34;Jill&#34;, &#34;Jack&#34;)    bank = Bank()    upperPin = numAccounts + 1000    for pinNumber in range(1000, upperPin):        name = random.choice(names)        balance = float(random.randint(100, 1000))        bank.add(SavingsAccount(name, str(pinNumber), balance))    return bankdef testAccount():    &#34;&#34;&#34;Test function for savings account.&#34;&#34;&#34;    account = SavingsAccount(&#34;Ken&#34;, &#34;1000&#34;, 500.00)    print(account)    print(account.deposit(100))    print(&#34;Expect 600:&#34;, account.getBalance())    print(account.deposit(-50))    print(&#34;Expect 600:&#34;, account.getBalance())    print(account.withdraw(100))    print(&#34;Expect 500:&#34;, account.getBalance())    print(account.withdraw(-50))    print(&#34;Expect 500:&#34;, account.getBalance())    print(account.withdraw(100000))    print(&#34;Expect 500:&#34;, account.getBalance())def main(number = 10, fileName = None):    &#34;&#34;&#34;Creates and prints a bank, either from    the optional file name argument or from the optional    number.&#34;&#34;&#34;    if fileName:        bank = Bank(fileName)    else:        bank = createBank(number)    print(bank)if __name__ == &#34;__main__&#34;:    main()  I am just about to the character limit on this question so the other file will be in images. bank.pysavingsaccount.py+12 File: savingsaccount.py3 This module defines the SavingsAccount class.4 &#34;6 class SavingsAccount:&#34;&#34;This class represents a savings accountwith the owner's name, PIN, and balance.&#34;&#34;&#34;10RATE = 0.02# Single rate for all accounts11def -_init_(self, name, pin, balance = 0.0):self.name = nameself.pin = pinself.balance = balance1213141516def -_str__(self):&#34;&#34;Returns the string rep.&#34;&#34;&#34;result = 'Name:171819' + self.name+ '
''+self.pin + '
'20result += 'PIN:result += 'Balance: '+ stI(self.balance)return result212223def getBalance(self):&#34;&#34;&#34;Returns the current balance.&#34;&#34;&#34;return self .balance24252627def getName(self):&#34;&#34;&#34;Returns the current name.&#34;&#34;&#34;282930return self.name31def getPin(self):&#34; &#34;Returns the current pin. &#34;&#34;&#34;return self.pin32333435def deposit(self, amount):&#34;&#34;&#34;If the amount is valid, adds itto the balance and returns None;363738otherwise, returns an erIor message.&#34;&#34;&#34;self.balance += amountreturn None39404142def withdraw(self, amount):&#34;&#34;If the amount is valid, sunstract itfrom the balance and returns None;otherwise, returns an erIor message.&#34;&#34;&#34;if amount < 0:434445464748return &#34;Amount must be >= 0&#34;elif self.balance < amount:return &#34;Insufficient funds&#34;495051else:52self.balance -= amount53return None54def computeInterest(self):&#34;&#34;&#34;Computes, deposits, and returns the interest.&#34;&#34;&#34;interest = self.balance * SavingsAccount. RATEself.deposit(interest)return interest555657585960def --eq__(self, other):&#34;&#34;&#34;Returns True if names are equal or False otherwise. &#34;&#34;&#34;returnValue = Falseif isinstance(other, savingsaccount):if(self.name == other.name):616263646566returnValue = True67return returnValue68def -_lt__(self, other):&#34;Returns True if name of self is less than6970name of other, or False otherwise.&#34;&#34;&#34;returnValue = Falseif isinstance(other, savingsaccount):if(self.name < other.name):7172737475returnValue = True76return returnValue77

Accepted Answer

According to the information given:-
we have to create a

Bank class with accountdesign…