Legacy reasons and existing code base works. This might offered a migration path for those who wish. Though the TCL/TK combo for some has always been appealin

Legacy reasons and existing code base works. This might offered a migration path for those who wish. Though the TCL/TK combo for some has always been appealing and simple enough to work and come across it in area's for comm's to nice display interface and medical data processings. Cloverleaf being worth a mention and that is written in TCL and used that near on 20 years ago for processing medical important things from banks of modems - it worked. Sure could use something else but that is true of everything. Still TCL been around a while, back in a time in which perl was popular.