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It is the standard Python interface to the Tk GUI toolkit, [1] and is Python's de facto standard GUI. [2] Tkinter is included with standard Linux, Microsoft Windows and macOS installs of Python. The name Tkinter comes from Tk interface. Tkinter was written by Steen Lumholt and Guido van Rossum, [3] then later revised by Fredrik Lundh. [4]
For example, in Python, to print the string Hello, World! followed by a newline, one only needs to write print ("Hello, World!" In contrast, the equivalent code in C++ [ 7 ] requires the import of the input/output (I/O) software library , the manual declaration of an entry point , and the explicit instruction that the output string should be ...
Hello World is the name of the program; thus it's the Hello World Program. This adheres to a common standard: Twin Towers, not Twin towers, Hail Mary, not “Hail Mary”. The fact that "Hello, World!" is the computer string originally used might matter for non-human interpreters, but this article is intended for the human eye.
The prefix Py-is used to show that something is related to Python. Examples of the use of this prefix in names of Python applications or libraries include Pygame, a binding of Simple DirectMedia Layer to Python (commonly used to create games); PyQt and PyGTK, which bind Qt and GTK to Python respectively; and PyPy, a Python implementation ...
PyQt is a Python binding of the cross-platform GUI toolkit Qt, implemented as a Python plug-in.PyQt is free software developed by the British firm Riverbank Computing. It is available under similar terms to Qt versions older than 4.5; this means a variety of licenses including GNU General Public License (GPL) and commercial license, but not the GNU Lesser General Public License (LGPL). [3]
For example, Java is not script-like since an application starts at the function named main which need not be at the top of the code. The following code starts at main , then calls printHelloWorld which prints "Hello World".
X Athena Widgets or Xaw is a GUI widget library for the X Window System. Developed as part of Project Athena , Xaw was written under the auspices of the MIT X Consortium as a sample widget set built on X Toolkit Intrinsics (Xt); Xt and Xaw are collectively known as the X Toolkit. [ 1 ]
PyGTK is a set of Python wrappers for the GTK graphical user interface library.PyGTK is free software and licensed under the LGPL.It is analogous to PyQt/PySide and wxPython, the Python wrappers for Qt and wxWidgets, respectively.