From: lkcl on
https://sourceforge.net/projects/pyjsglade/

kees bos, the primary programmer who added all of the incredible
python features to the pyjs compiler, such as support for yield, long
data type and much more, has just started a project "pyjsglade". its
purpose is the same as that of GTK glade: allow developers to build
GUIs based on an XML file format.

whilst he's pretty much literally only just begun the project, it's a)
useable because he needs it to be, for a work-related project b) kees
is such a ridiculously competent programmer that by the time you read
this it'll likely be 50% functional :)

anyway, i thought i'd just let people informally know.

l.