Re: [Jython-users] More fun with Readline

[<bc...@wo...>]

[Steve Cohen]

>Now that I have readline working with jython, I come quickly to the next
>hurdle.  Is it possible to integrate readline capabilities into
>jython-coded command interpreters based on cmd.Cmd?  I cannot get this
>to work at all.  The docs on cmd.Cmd gave me some hope, but I can't get
>any of it to work, not even the Ctrl-P, Ctrl-N stuff.  I also tried
>setting use_rawinput to 0 to force readline, that produced an error when
>I executed cmdloop():=20
>
>TypeError: write(): 1st arg can't be coerced to String

Was there a stacktrace with that exception?

It is not uncommon that TypeErrors are caused by a too restrictive
method signature in the jython core, but more information is needed.
Also try to start jython with the command:

   jython -Dpython.options.showJavaExceptions=true

to get additional stacktrace information.

>Does anyone have any ideas how readline can be made to work in cmd.Cmd
>interpreters?

I doubt that it works at the moment. raw_input() just call the
.readline() method on sys.stdin.

Someone have to add support for readline in __builtin__.raw_input().

Anyone?

regards,
finn