how to remove characters from printed output in python
list, python, python-3.x
Solution
I notice you wants to play with `carriage return` commands. First you need to learn both `\b` (moves the active position to the previous position) and `\r` (moves the active position to the start of line) works for current active line. I think you are working on command line interpreter; at which you explicitly press enter for next line. On command line interpreter use `;` as follows:
>>> print("abb", end=""); print("\b\bcc")
acc
>>> print("a->", end=""); print("\b\b ")
>>> a
If you are using some script then your code should work, see:
Upload$ cat s.py
print ("abcd->", end="")
print ("\b\b ")
Upload$ python3.2 s.py
abcd # notice -> is removed
But this is not much useful, correct approach is what Aशwini चhaudhary has shown in his answer.
Edit: I found you mistake in your code
print('%d->' % addedlist[x], end="")
print('\b\b\n')
You use `'\b'` to moves the active position to the previous position, but you don't overwrite `"->"`, you just outputs `'\n'` that shift cursors to next line, you should rectify your code as below.
print('%d->' % addedlist[x], end="")
print('\b\b \n')
# ^^^ /b then overwrite with spaces
Run at Linux shell as `$ python scriptname.py` (For command line Python's interpreter you can use something like code I written, it is just to play, use `str.join` or use `sep` parameter in `print()`).
Problem
I am trying to remove extra characters printed out in my print statement from another print statement. Here is what my code looks like: ``` print(addedlist) #addedlist = [9,5,1989,1,2,3,4,5,6,7,8,9] for x in range(0, len(addedlist)): print('%d->'%addedlist[x],end="") print('\n') ``` the output of this looks like this: ``` [9, 5, 1989, 1, 2, 3, 4, 5, 6, 7, 8, 9] 9->5->1989->1->2->3->4->5->6->7->8->9-> ``` I am trying to remove the last `->` characters. I tried doing : ``` print(addedlist) #addedlist = [9,5,1989,1,2,3,4,5,6,7,8,9] for x in range(0, len(addedlist)): print('%d->'%addedlist[x],end="") print('\b\b\n') ``` but it didn't work. How would i go about accomplishing this ? EDIT: Just some clarification, I know i can change my original print statement to print it more correctly to avoid trailing `->` ... I am after a solution for how to erase trailing '->' this once the mistake has been made