[Tutor] Hmm...I should be able to figure this out...but... (original) (raw)

Bob Gailer bgailer at alum.rpi.edu
Tue Jul 20 22:42:44 CEST 2004

At 01:22 PM 7/20/2004, Steven Combs wrote:

I am using the following code to simply take user input and return the results backwards.

--------------------------------------------------------------- # Initialize Variables string = "" stringlength = 0 # Begin Program string = rawinput("Enter a string and I will display it backwards.\n") stringlength = len(string) for i in range (stringlength, 0, -1): print string [i - 1], print "\n" rawinput("\nPress the enter key to exit") --------------------------------------------------------------- It works, but it places a space in between the characters displayed. For instance, if the string entered is: Test the results are displayed t s e T

print puts a space after each ,. The easiest way to do what you want is to collect the letters in a string and print the string:

output = '' for i in range (stringlength, 0, -1): output += i print output

There are numerous other ways to do this, including reverse(), slicing, stdout,write(), et al.

I tried using "\b" to backspace after each character is displayed, but this didn't work. I'm embarrassed to admit that I am trying to give this as an assignment for a basic computer programming course I teach (I'm stilling trying to learn the finer points of Python myself). I know I could use other commands, but I have to limit the command set for the students at this stage in their programming section (we have yet to discuss mutability and immutability) Any suggestion for an easy fix?

Bob Gailer bgailer at alum.rpi.edu 303 442 2625 home 720 938 2625 cell

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