hi all, I'm trying to write a simple app which takes a name, bank balance, interest rate and returns the balance once 1 years interest has been added. I'm getting the error that float object is not callable. i can't figure out where i'm going wrong :S my code is below(getDetails, showDetails,doStuff.py), thanks for any input! paul. <html> <body> <form action="showDetails" method=post> <input name="name:str"> NAME<br> <input name="balance:float"> BALANCE<br> <input name="interestRate:float"> INTEREST RATE<br> <input type="submit" value="calculate"> </form> </body> </html> ------------------ <html> <body> <span tal:define="name request/name; balance request/balance; rate request/interestRate"> <span tal:content="python: here.doStuff(name,balance,rate)"></span> </span> </body> </html> -------------- years = 1 newBal = balance( balance*(rate*years)) returnList = [name,newBal] return returnList