Lucia Stockdale wrote: > Hi everyone, > > I have been writing a program to print words backwards until an an empty > line of input is entered, but after I put in the input it comes up with > TypeError.
In the future please include the traceback (cut and paste, don't rephrase). > This is my goal: > > Line: hello world > olleh dlrow > Line: extra > artxe > Line: i love python > i evol nohtyp > Line: > > This is my current code: > > line = input('Line: ') > while line != '': > line = line[len(line):0:-1] Python uses half-open intervals; thus line[0] is not included in the result. Use line = line[::-1] to reverse the string. > line = line.split() > line = line.reverse() The reverse() method modifies the line in place, and by convention such methods return None in Python. Change the above line to line.reverse() > line = (' '.join(line)) > print(line) I see another problem, the while loop will run at most once, but you should be able to fix that yourself. _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor