add "reload" function to IDLE

[phr]

BPO	1175686
Nosy	@rhettinger, @kbkaiser, @devdanzin
Superseder	bpo-1721083: Add File - Reload

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = 'https://github.com/kbkaiser'
closed_at = <Date 2009-08-03.02:34:50.407>
created_at = <Date 2005-04-03.08:48:10.000>
labels = ['expert-IDLE', 'type-feature']
title = 'add "reload" function to IDLE'
updated_at = <Date 2020-07-27.23:44:17.781>
user = 'https://bugs.python.org/phr'

bugs.python.org fields:

activity = <Date 2020-07-27.23:44:17.781>
actor = 'terry.reedy'
assignee = 'kbk'
closed = True
closed_date = <Date 2009-08-03.02:34:50.407>
closer = 'gpolo'
components = ['IDLE']
creation = <Date 2005-04-03.08:48:10.000>
creator = 'phr'
dependencies = []
files = []
hgrepos = []
issue_num = 1175686
keywords = []
message_count = 10.0
messages = ['54423', '54424', '54425', '54426', '54427', '81446', '81583', '81624', '83101', '91212']
nosy_count = 6.0
nosy_names = ['rhettinger', 'kbk', 'phr', 'ajaksu2', 'LambertDW', 'gpolo']
pr_nums = []
priority = 'normal'
resolution = 'duplicate'
stage = 'resolved'
status = 'closed'
superseder = '1721083'
type = 'enhancement'
url = 'https://bugs.python.org/issue1175686'
versions = ['Python 3.1', 'Python 2.7']

[phr]

The file menu in Editor windows could benefit from a
"reload" function that re-reads the file from disc and
loads it into the editor, replacing what's currently in
the editor. That's useful for those of us who like to
edit with Emacs in another window while running the
code under Idle. To get really fancy, it might be cool
to optionally display a diff between the in-editor
version and the on-disk version allowing merging
changes, but that's maybe over the top.

Other editors usually do have commands like this,
e.g.M-x Revert-file in Emacs or ":e!" in vi.

[rhettinger]

Logged In: YES
user_id=80475

If added, it should definitely be called "revert" instead of
"reload". The latter already has a specific meaning in
Python that relates to imports. The former seems to be
standard terminology across a number of editing tools from
emacs to photoshop.

[kbkaiser]

Logged In: YES
user_id=149084

Why do you use Emacs instead of IDLE? (I use emacs
myself sometimes, but I'm curious what your reasons
are these days.)

[kbkaiser]

Logged In: YES
user_id=149084

I like the Revert idea better. It probably should be
above "Close" in the File menu. Otherwise, if it's
next to "Recent Files", someday someone is going
to select it by mistake and be really ticked.

I think the suggestion violates KISS. Over time, it's
ideas like this that cause creeping features and a
boated interface.

But again, why not use IDLE instead of emacs to
edit Python code? One button Save/Run! What is
the killer feature that's missing from IDLE? That would
be the real thing to work on.

[kbkaiser]

Logged In: YES
user_id=149084

Responding to your "misplaced" post, I use emacs for
everything also; basically I live in emacs. However, my
question still stands. Have you tried IDLE with the
autosave and F5 to run? If IDLE had incremental search
it would be pretty close or maybe even better. I used to
use emacs to develop IDLE but I find I'm increasingly
using IDLE for that purpose.

[devdanzin]

Superseder: bpo-5138.

[rhettinger]

Kurt, is this something you can add?

Closed the duplicate bpo-5138 and leaving this open.

IDLE would be *much* easier to use in conjunction with version control
if there were a reload option that did the equivalent of (close current
with no save, followed by open current file).