kpsewhich.  This caused a problem with the latest latex2html beta.

method browser into a separate class in its own module.

entry if the menu is disabled. This does create a circular reference, so cleanup
becomes more important.

exit status is zero.

so balloons haven't been working for ages. Apparently nobody noticed:-)

real one.

message.

recalculated.

Also added MD5Type object.

caller (in import.c) will test for errors and take appropriate action.

Closing it now also does the right thing.

source, but it doesn't yet show the stack).

assign the exception info to sys.last_{type,value,traceback}.  That
way, an introspective Tkinter app can inspect its own stack trace.

(The controversy is that it would keep some objects alive, but that's
probably no big deal.)