> dollarize(1234567.8901) returns-> $1,234,567,89 > : > amount = raw_input("Enter an amount: ") > dollar_amount = dollarize(amount) > print dollar_amount
the solution you're creating is *slightly* different than the original spec in the problem (Exercise 13-3). the argument to dollarize() is supposed to be a *float*, not a string. other than that, you're well on your way! also, be aware of the typo in the class skeleton provided on p. 619. the published changed the "`"s to "'"s on line 13. since the backtick quotes are going away in Python 3, i would just suggest changing "return `self.value`" to "return repr(self.value)". aside from this, the way i usually solve this problem is to save off the sign, round off the fraction/pennies, and then break it up into dollars and cents, then process the commas into the dollar amount, and finally merge everything back together with the sign and the $. best of luck! -- wesley ps. marty's use of locale is a great add-on to this problem. i've had some students go this distance and implement it in a similar way but not very often. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - "Core Python Programming", Prentice Hall, (c)2007,2001 http://corepython.com wesley.j.chun :: wescpy-at-gmail.com python training and technical consulting cyberweb.consulting : silicon valley, ca http://cyberwebconsulting.com _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor