Tkinter, updateStringProc for type font

Pier Paolo Glave pierpaolo.glave at
Wed Sep 4 08:55:22 EDT 2002

Hi all,

I'm facing a problem with my Python program, which uses Tkinter to
interface Tcl/Tk.
I sometimes get this error message from Tcl: 
"UpdateStringProc should not be invoked for type font".
As a consequence, the application crashes with SIGABRT (6).

I'm using: Python 2.2, Tcl/Tk 8.3.3-69.

I've seen in the tcl sources that this happens when a function named 
Tcl_GetString() is called for a "type" which has the "byte" field set
to NULL, and no "updateStringProc" function pointer: this seems to
happen for Tk type "font", sometimes in my application.
Anyway, I'm not able to understand more.

Has anyone encountered this problem before?

Thank you
Pier Paolo Glave

More information about the Python-list mailing list