Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.
PyQt - Riverbank | Software | PyQt | What is PyQt?
Java - A concurrent, class-based, object-oriented, language specifically designed to have as few implementation dependencies as possible
Tkinter - Tkinter is a Python wrapper for Tcl/Tk that offers classes to create various graphical user interfaces.
Rust - A safe, concurrent, practical language
MD Python Designer - A drag and drop GUI Designer that uses a combination of Tkinter and its own code.