Re: [matplotlib-devel] propagation of error messages in matplotlib

[John H. <jdh...@ac...>]

>>>>> "Fernando" == Fernando Perez <Fer...@co...> writes:


    Fernando> I realize that excepthook is a tempting tool to use, but
    Fernando> I hope you guys reconsider this.  I really think it
    Fernando> would cause many more headaches down the road than those
    Fernando> it initially appears to solve.

OK, good to know.  That was news to me.  Now why is it that ipython
and envisage get to mess around with it and we don't :-) ?

So what is the canonical way to funnel exceptions into GUI dialog
boxes?  Isn't this what sys.except_hook is for?

Actually, it would be fine if matplotlib overrode sys.except_hook and
ipython later came along and overrode that.  Basically, ipython would
be saying, "I know I've got a shell to display errors in, so we don't
need to GUI method".  I don't think matplotlib would have a problem
with that.  Ditto for envisage.  Basically, we would be providing a
default method to get the message to the GUI which could be overriden
by other applications that want to (ipython, envisage, what-have-you).

So I don't really see a danger here, but please educate me!

JDH