[Pkg-tcltk-devel] Bug#889810: tk: 'wish' gives console error message; tclsh can't find package Tk

[tomas at tuxteam.de]

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On Wed, Feb 07, 2018 at 09:35:26AM +0000, Jasper Taylor wrote:
> Package: tk
> Version: 8.6.0+9
> Severity: important
> 
> Dear Maintainer,
> 
> I found I could not run my Tk-based application. I was starting it with a tclsh
> script which then executed "package require Tk" and this command was raising an
> error: "Can't find package Tk".
> 
> When running 'wish' from the command line a console error message appears as
> follows:
> 
> >application-specific initialization failed: Can't find a usable tk.tcl in the
> following directories:
> >    /usr/local/lib/tcl8.6/tk8.6 /usr/local/lib/tk8.6 /usr/lib/>tk8.6
> /usr/lib/tk8.6 /lib/tk8.6 /usr/library
> >
> >
> >
> >This probably means that tk wasn't installed properly.
> 
> but Wish then appears to start normally.

Hm. This looks a bit strange. As if the tclsh you were running
didn't belong to the package.

Could you try, in a shell (best the same one you would start
your application from) to issue

  which tclsh

just to make sure?

Also, I'd check the value of the $auto_path variable on your tclsh:

  tomas at trotzki:~$ tclsh
  tclsh8.6 [~]puts $auto_path
    /usr/share/tcltk/tcl8.6
    /usr/share/tcltk
    /usr/lib
    /usr/local/lib/tcltk
    /usr/local/share/tcltk
    /usr/lib/tcltk/x86_64-linux-gnu
    /usr/lib/tcltk
    /usr/lib/tcltk/tcl8.6

(line wrap added to aid readability). That's more or less how it's supposed
to look for a Debian-distributed tcl. Given your error message above, the
/usr/share paths seem to be missing (and that's where the distributed
tk.tcl lives), so I suspect other forces to be at work here. Either a
homegrown tcl, or some homegrown config are good candidates for that.

Cheers
- -- tomás
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