> Traceback (most recent call last): > File "<pyshell#50>", line 1, in -toplevel- > factor0(3737) > File "<pyshell#35>", line 12, in factor0 > v = transfac(v) > File "<pyshell#48>", line 19, in transfac > na = na + randint(1,na) > NameError: global name 'randint' is not defined Reading from the bottom uip it tells us that randint is not defined. randint is in the random module.
> def transfac(v): > import random > a = v[0] > randint(a, b) You need to prepend the function name with the module name - this prevents "name collisions" across modules. ie random.randint(a,b) > I found this, but it doesn't tell me how to use it. Having found your function (import the module if necessary) then use help() >>> import math >>> help(math) >>> help(math.sqrt) Note when using help() do not put parens after the required function name - that would ask for help on the returned value! Use 'Q' to exit the help screen. Use 'b' to reverse up a screeen BTW there is a built in pow which is slightly different to the one in the math module... Tip: You can also use dir() to find out the names of functions in a module, including the built in functions: dir(__builtins__) dir(math) Note 2 underscores each side of builtins coz its a 'magic' name, imported modules are named as usual... HTH, Alan G Author of the learn to program web tutor http://www.freenetpages.co.uk/hp/alan.gauld _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor