Re: [Jython-users] Jython 2.5.0 Release Candidate 2 out

[Mayne, P. <pet...@hp...>]

The JLine doc for jline.UnixTerminal says "All known unix systems (including Linux and Macintosh OS X) support the stty), so this implementation should work for an reasonable POSIX system." However, the system I'm using (HP (Tandem) NonStop) is UNIX-like, but presumably not enough like: the new default doesn't echo anything as a line is being typed, then echoes the line after Enter is typed.

Fortunately activating the legacy console as described below does the right thing.

I have no great interest in chasing up command line niceness. I'd rather ask, will the legacy console remain available, or is there a plan to remove it at some stage? If there is such a plan, can the legacy console please be left in for those of us on non-Windows, non-UNIX systems?

Thanks.

Incidentally, being a Windows, UNIX, and other user, I disagree with the "consistent behaviour across platforms" premise implied by having Ctrl-D exit a session on Windows: "consistent behaviour ... on each platform" is much better. On Windows, it should work like Windows. On UNIX, it should work like UNIX. On my platform, where by default neither Ctrl-D nor Ctrl-Z are used to quit a session, it should work like my platform. Why should a Windows user have to learn a different EOF character because it happens to be standard on some other platform? Ctrl-Z works everywhere else on Windows, why should Jython be different?

I appreciate the (UNIX-centric) humour in " This might be considered to be an improvement :)" on Windows, but when attempting to "fix" this kind of thing, it's too easy to forget that in some places, it isn't broken. How do you know that Ctrl-D on my platform doesn't mean "halt the system immediately"? I'm not making this up: on a different widely used platform, the right control character in the right place intentionally does exactly that.

PJDM
-- 
Peter Mayne
Hewlett-Packard
Canberra, ACT, Australia 

-----Original Message-----
From: Alan Kennedy [mailto:jyt...@xh...] 
Sent: Thursday, 14 May 2009 7:11 AM
To: Jim Baker
Cc: jyt...@li...; Andrea
Subject: Re: [Jython-users] Jython 2.5.0 Release Candidate 2 out

[Jim]
> Instead of using control-Z, the console now defaults to using the Unix
> standard of control-D for quitting a session. This might be considered to be
> an improvement :)

:-)

Being a Windows and *nix user, I like to have consistent  behaviour
between cpython and jython on each platform.

So it's kind of annoying to have cpython on Windows use the
windows-standard Ctrl-Z and jython on Windows use the Unix-standard
Ctrl-D.

But a quick look at the registry file distributed with rc2 shows the
following lines

# To activate the legacy Jython console:
# python.console=org.python.util.InteractiveConsole

Uncommenting the second line does indeed restore Windows standard
behaviour, Ctrl-Z quits the interpreter, as it should.

The up and down keys always worked for command history on Jython,
before jline, so I'm happy to keep using the "legacy" console.

Alan.

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