We are pleased to announce that Tkinter, the GUI library based on TCL/TK, now works with PyPy. Tkinter is composed of two parts: _tkinter, a module written in C which interfaces with the TCL world Tkinter, a pure Python package which wraps _tkinter to expose the pythonic API we are used to The PyPy version of _tkinter reuses the C code of as found in CPython and compile it through the PyPy C-API c