Enhance 3.1 IDLE to exec IDLESTARTUP/PYTHONSTARTUP on restart

[MLModel]

BPO	5234
Nosy	@loewis, @kbkaiser, @MLModel
Superseder	bpo-5233: IDLE: exec IDLESTARTUP/PYTHONSTARTUP on restart
Files	PyShell-3.1.diff: mods to enable IDLE's loading startup file on restart unnamed

^{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 2009-03-09.19:21:38.876>
created_at = <Date 2009-02-12.22:35:28.763>
labels = ['expert-IDLE', 'type-bug']
title = 'Enhance 3.1 IDLE to exec IDLESTARTUP/PYTHONSTARTUP on restart'
updated_at = <Date 2009-03-09.19:21:38.874>
user = 'https://github.com/MLModel'

bugs.python.org fields:

activity = <Date 2009-03-09.19:21:38.874>
actor = 'gpolo'
assignee = 'kbk'
closed = True
closed_date = <Date 2009-03-09.19:21:38.876>
closer = 'gpolo'
components = ['IDLE']
creation = <Date 2009-02-12.22:35:28.763>
creator = 'MLModel'
dependencies = []
files = ['13059', '13287']
hgrepos = []
issue_num = 5234
keywords = ['patch']
message_count = 4.0
messages = ['81832', '83360', '83387', '83398']
nosy_count = 4.0
nosy_names = ['loewis', 'kbk', 'gpolo', 'MLModel']
pr_nums = []
priority = 'normal'
resolution = 'duplicate'
stage = None
status = 'closed'
superseder = '5233'
type = 'behavior'
url = 'https://bugs.python.org/issue5234'
versions = ['Python 3.1']

[MLModel]

The main thing the patch does is:
modify the subprocess restart procedure so that it reloads
whatever file, if any, was loaded when IDLE first started and looked for
IDLESTARTUP then PYTHONSTARTUP environment variables.

In addition:
a -q option is added for starting IDLE on the command line to
mean "quiet", as with Emacs, e.g., to suppress loading of IDLESTARTUP or
PYTHONSTARTUP
The former effect of -s would now be the default, which is
desirable so double-clicking an IDLE icon to start it will cause the
startup file to run.
-s is changed to take an argument that is an alternate startup
file to use

I am a bit concerned about changing -s to have a different meaning.
Perhaps it's better to leave -s as an option that is simplhy superfluous
and use a different letter for the alternate startup.

[loewis]

How does that differ from bpo-5233? If this is a straight-forward port,
no additional issue is needed. Even if there are differences, please
attach the patch to the other issue.

[MLModel]

Same changes to the code, but starting from a different base. I had
assumed since IDLE/PyShell.py was different in Python 2 and 3 that I
needed to submit separate issues each with its own patch. I've
attached the 3.1 patch to bpo-5233, so you can close bpo-5234.
(Though doesn't it still make sense to have separate issues since it
my happen that it gets integrated into Python 3 but not Python 2, and
then what would the status of the issue be?)

--

     --- Mitchell

[gpolo]

Closing in favor of 5233, I see the fix being applied to both 2.7 and
3.1 if accepted.