classification
Title: Bottom Scroll Bar in IDLE
Type: enhancement Stage:
Components: IDLE Versions: Python 3.4
process
Status: open Resolution:
Dependencies: Superseder:
Assigned To: kbk Nosy List: Todd.Rovito, kbk, michael.foord, roger.serwy, terry.reedy
Priority: normal Keywords:

Created on 2005-05-24 09:08 by michael.foord, last changed 2013-03-26 09:07 by Ramchandra Apte.

Messages (4)
msg54533 - (view) Author: Michael Foord (michael.foord) * (Python committer) Date: 2005-05-24 09:08
IDLE comes without a horizontal (bottom) scroll bar. In 
general this is preferable, but there are times when it's a 
nuisance.

It would be nice to have an option (easily accessible) to 
switch this on.
msg54534 - (view) Author: Kurt B. Kaiser (kbk) * (Python committer) Date: 2005-05-26 15:48
Logged In: YES 
user_id=149084

IDLE is intended to present a simple interface to
beginners and to encourage good style.  I believe that
GvR made a deliberate decision not to have a horiz
scroll bar to discourage lines longer that 80 char.

If you want to code a patch,  I'd accept it.  However,
the config switch should be in config-main.def only, and
the selection should not appear on the Options dialog.

That way an experienced user could set it in
.idlerc/config-main.cfg 
msg164436 - (view) Author: Terry J. Reedy (terry.reedy) * (Python committer) Date: 2012-07-01 00:01
#15141, which I will close as a duplicate, makes the same request (for the edit window). Roger Serwy notes that his extension package
http://idlex.sourceforge.net/extensions.html
has horizontal.py, which does what is requested. He is willing for that (or other) extension(s) to be bundled with idle for default or optional activation. I presume that is done in some .cfg file. I re-opened for that purpose.

(Note: it would seem nice to be able to get a list of extensions available and those enabled from the menu. Or is there a reason not too?)

Some arguments for h. scroll:
1. The shell window is a print output as well as code input window. Output should not necessarily be limited to 80 chars. With variable pitch font, that does not even make much sense.
2. Edit windows are not limited to python code. Else they would *always* syntax hilight. Or Pycode might be embedded in other formats. If #6858 were implemented, h scroll would be more useful.
3. Not everyone agrees with the 80 char limits.
4. People sometimes edit a file written by someone else.

Counter-arguments:
1. A full screen window allows about 200 chars or more, which is enough for any code entry and most print output and most 'files written by someone else'.
2. For exceptions, put cursor on long line and use => arrow key.
msg164446 - (view) Author: Roger Serwy (roger.serwy) * (Python committer) Date: 2012-07-01 03:18
I wrote Horizontal.py as an extension in order to avoid forking IDLE. It 
should be simple to incorporate a toggling horizontal scroll bar within 
the EditorWindow class itself.
> (Note: it would seem nice to be able to get a list of extensions available and those enabled from the menu. Or is there a reason not too?)

IdleX provides a dialog for enabling and disabling extensions.

The shell window has wrapping enabled on its text widget. A horizontal 
bar is not needed there.
> 2. Edit windows are not limited to python code. Else they would *always* syntax hilight. Or Pycode might be embedded in other formats. If #6858 were implemented, h scroll would be more useful.
True. The Editor window does not wrap, which is why the horizontal bar 
is needed there.
> 3. Not everyone agrees with the 80 char limits.
The limit does make printing code simpler, however.  But that's a 
separate discussion.
> 4. People sometimes edit a file written by someone else.
Yes, and often times it is one or two lines in the file that extend 
beyond the right border of the editor.
> Counter-arguments:
> 1. A full screen window allows about 200 chars or more, which is enough for any code entry and most print output and most 'files written by someone else'.
I shouldn't have to resize the editor to see its contents.
> 2. For exceptions, put cursor on long line and use =>  arrow key.
>
> ----------
> nosy: +serwy, terry.reedy
> resolution: rejected ->
> status: closed ->  open
> versions: +Python 3.4
>
> _______________________________________
> Python tracker<report@bugs.python.org>
> <http://bugs.python.org/issue1207613>
> _______________________________________
>
History
Date User Action Args
2013-03-26 09:07:37Ramchandra Aptesettitle: Bottom Scroll Bar -> Bottom Scroll Bar in IDLE
2013-03-25 03:00:45Todd.Rovitosetnosy: + Todd.Rovito
2012-07-01 03:18:21roger.serwysetmessages: + msg164446
2012-07-01 00:02:49terry.reedylinkissue15141 superseder
2012-07-01 00:01:48terry.reedysetstatus: closed -> open
versions: + Python 3.4
nosy: + terry.reedy, roger.serwy

messages: + msg164436

resolution: rejected ->
2005-05-24 09:08:33mjfoordcreate