python - TypeError: unsupported operand type(s) for -: 'float' and 'method' -


so guys, i'm trying work exercises in python after reading classes , objects, , 1 of said exercises create account class , write methods withdraw , deposit money account. every time run it, typeerror telling me operand unsupported floats , methods. feel i'm close missing obvious. give me idea i'm doing wrong , how fix this?

class account:     def __init__(account, id, balance, rate):         account.__id = id         account.__balance = float(balance)         account.__annualinterestrate = float(rate)      def getmonthlyinterestrate(account):         return (account.__annualinterestrate/12)     def getmonthlyinterest(account):         return account.__balance*(account.__annualinterestrate/12)        def getid(account):         return account.__id     def getbalance(account):         return account.__balance     def withdraw(account, balance):         return (account.__balance) - (account.withdraw)     def deposit(account, balance):         return (account.__balance) + (account.deposit)  def main():     account = account(1122, 20000, 4.5)     account.withdraw(2500)     account.deposit(3000)     print("id " + str(account.getid()))     print("balance " + str(account.getbalance()))     print("monthly interest rate is" + str(account.getmonthlyinterestrate()))     print("monthly interest " + str(account.getmonthlyinterest()))  main()

this:

def withdraw(account, balance):     return (account.__balance) - (account.withdraw)

should this:

def withdraw(self, amount):     self.__balance -= amount

in python refer class inside methods self.

applying rest of class , cleaning things up:

class account:     def __init__(self, id, balance, rate):         self.id = id         self.balance = float(balance)         self.annualinterestrate = float(rate)      def getmonthlyinterestrate(self):         return self.annualinterestrate / 12      def getmonthlyinterest(self):         return self.balance * self.getmonthlyinterestrate()      def getid(self):         return self.id      def getbalance(self):         return self.balance      def withdraw(self, amount):         self.balance -= amount      def deposit(self, amount):         self.balance += amount

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