Le Tuesday 01 July 2008 14:38:36 Dick Moores, vous avez écrit : > I'm writing a demonstration version of a program which does things > with integers, and with floats, which are randomly generated. I want > to also randomly pick whether the integer side, or the float side is > demonstrated next. I have 2 functions, use_for_integer_demo() > and use_for_float_demo(), and one or the other of these will start > the demo. So I want to randomly choose between them. I thought that I > might be able to use choice() to do that. So, > > (bunch of functions here) > if __name__ == '__main__': > choice([use_for_float_demo(), use_for_integer_demo()]) >
Writing this [use_for_float_demo(), use_for_integer_demo()] calls the two functions and build a list with their returned values. So the choice is between 'the result of use_for_float_demo()' and 'the result of use_for_integer_demo()'. This explains why the two functions are called. You should rather use function objects like this: # choose a function (note there are no () after the names) func = choice([use_for_float_demo, use_for_integer_demo]) # then call it func() -- Cédric Lucantis _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
