Alan, Now I understand! Thanks again for the explanation!
Alan G wrote: >> "for" loop as you suggest, the program won't enter the loop unless >> "s" is initialized so that it's in "input". How do I do that? > > > for s in input: > > means that s takes on each value in input. > input is your file. Thus s takes on the value of each line in > the input file. You don't need to initialise s before entering > the loop as you would with a while loop. Similarly you don't > need to test for the end of the file, 'for' does all that too. > > Take a look at the 'Loops' topic and then the 'Handling Files' topic > in my tutorial for more info on this. > >> Also, near the end of your remarks you say that the code at the >> bottom of my program doesn't do anything. It does for me. > > > Lets take a look: > >>>> print N >>>> for i in range(N): >>>> T[i] <-------- This does nothing >>>> print T[i] >>> > > The line that simply has the value in it will not do anything. > It will not print out the value, you need to call print for that > to happen. > >> put in those print statements to verify that the contents of those >> variables are what I expected them to be. That's all that mess is for. > > > The debug/test print statements are fine, I was only pointing out > that one line did nothing, not the entire block. > > 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
