Tcl (programming language)

Tcl (pronounced as an acronym, , like tickle, or as an initialism, , like T-C-L; originally Tool Command Language) is a high-level, general-purpose, interpreted, dynamic programming language. It was designed with the goal of being very simple but powerful. Tcl casts everything into the mold of a command, even programming constructs like variable assignment and procedure definition. Tcl supports multiple programming paradigms, including object-oriented, imperative, functional, and procedural styles. It is commonly embedded into C applications for rapid prototyping, scripted applications, GUIs, and testing. Tcl interpreters are available for many operating systems, allowing Tcl code to run on a wide variety of systems. Because Tcl is a very compact language, it is used on embedded systems platforms, both in its full form and in several other small-footprint versions. The popular combination of Tcl with the Tk extension is referred to as Tcl/Tk (pronounced "tickle teak" or "tickle TK") and enables building a graphical user interface (GUI) natively in Tcl. Tcl/Tk is included in the standard Python installation in the form of Tkinter.