@@ -23,7 +23,39 @@ def withdraw(amount):
2323sanjay = deposit (100 )
2424print (sanjay )
2525
26- # The above example is good enough only if we want to have just a single account.
26+ # The above example is good enough only if we want to have just a single account. Did you understand what I said?
27+ 2728
2829# ******Things start getting complicated if want to model multiple accounts.******
2930
31+ # We can solve the problem by making the state local, probably by using a dictionary to store the state.
32+ 33+ def make_account ():
34+ return {'balance' : 0 }
35+ 36+ def putDeposit (account , amount ):
37+ account ['balance' ] += amount
38+ return account ['balance' ]
39+ 40+ def withdrawMoney (account , amount ):
41+ account ['balance' ] -= amount
42+ return account ['balance' ]
43+ 44+ def checkBalance (account ):
45+ return account ['balance' ]
46+ 47+ 48+ sanjay = make_account ()
49+ 50+ ram = make_account ()
51+ 52+ # by default, when someone creates an account, balance will show 0.
53+ putDeposit (sanjay , 5000 )
54+ 55+ # what is sanjay's balance amount now?
56+ print ("Sanjay has " + str (checkBalance (sanjay )) + " in his account!" )
57+ 58+ print ("Sanjay has withdrawn 2500 rs from the account, therefore the remaining balance is " + str (withdrawMoney (sanjay , 2500 )))
59+ 60+ 61+
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