# Graphical user interfaces with Tk

Tk/Tcl has long been an integral part of Python. It provides a robust and platform independent windowing toolkit, that is available to Python programmers using the `tkinter` package, and its extension, the `tkinter.ttk` module.

The `tkinter` package is a thin object-oriented layer on top of Tcl/Tk. To use `tkinter`, you don't need to write Tcl code, but you will need to consult the Tk documentation, and occasionally the Tcl documentation. `tkinter` is a set of wrappers that implement the Tk widgets as Python classes.

`tkinter`'s chief virtues are that it is fast, and that it usually comes bundled with Python. Although its standard documentation is weak, good material is available, which includes: references, tutorials, a book and others. `tkinter` is also famous for having an outdated look and feel, which has been vastly improved in Tk 8.5. Nevertheless, there are many other GUI libraries that you could be interested in. The Python wiki lists several alternative GUI frameworks and tools.

- `tkinter` --- Python interface to Tcl/Tk
  - Architecture
  - Tkinter Modules
  - Tkinter Life Preserver
    - A Hello World Program
    - Important Tk Concepts
    - Understanding How Tkinter Wraps Tcl/Tk
    - How do I...? What option does...?
    - Navigating the Tcl/Tk Reference Manual
  - Threading model
  - Handy Reference
    - Setting Options
    - The Packer
    - Packer Options
    - Coupling Widget Variables
    - The Window Manager
    - Tk Option Data Types
    - Bindings and Events
    - The index Parameter
    - Images
  - File Handlers
- `tkinter.colorchooser` --- Color choosing dialog
- `tkinter.font` --- Tkinter font wrapper
- Tkinter Dialogs
  - `tkinter.simpledialog` --- Standard Tkinter input dialogs
  - `tkinter.filedialog` --- File selection dialogs
    - Native Load/Save Dialogs
  - `tkinter.commondialog` --- Dialog window templates
- `tkinter.messagebox` --- Tkinter message prompts
- `tkinter.scrolledtext` --- Scrolled Text Widget
- `tkinter.dnd` --- Drag and drop support
- `tkinter.ttk` --- Tk themed widgets
  - Using Ttk
  - Ttk Widgets
  - Widget
    - Standard Options
    - Scrollable Widget Options
    - Label Options
    - Compatibility Options
    - Widget States
    - ttk.Widget
  - Combobox
    - Options
    - Virtual events
    - ttk.Combobox
  - Spinbox
    - Options
    - Virtual events
    - ttk.Spinbox
  - Notebook
    - Options
    - Tab Options
    - Tab Identifiers
    - Virtual Events
    - ttk.Notebook
  - Progressbar
    - Options
    - ttk.Progressbar
  - Separator
    - Options
  - Sizegrip
    - Platform-specific notes
    - Bugs
  - Treeview
    - Options
    - Item Options
    - Tag Options
    - Column Identifiers
    - Virtual Events
    - ttk.Treeview
  - Ttk Styling
    - Layouts
- IDLE --- Python editor and shell
  - Menus
    - File menu (Shell and Editor)
    - Edit menu (Shell and Editor)
    - Format menu (Editor window only)
    - Run menu (Editor window only)
    - Shell menu (Shell window only)
    - Debug menu (Shell window only)
    - Options menu (Shell and Editor)
    - Window menu (Shell and Editor)
    - Help menu (Shell and Editor)
    - Context menus
  - Editing and Navigation
    - Editor windows
    - Key bindings
    - Automatic indentation
    - Search and Replace
    - Completions
    - Calltips
    - Format block
    - Code Context
    - Shell window
    - Text colors
  - Startup and Code Execution
    - Command-line usage
    - Startup failure
    - Running user code
    - User output in Shell
    - Developing tkinter applications
    - Running without a subprocess
  - Help and Preferences
    - Help sources
    - Setting preferences
    - IDLE on macOS
    - Extensions
  - idlelib --- implementation of IDLE application
- `turtle` --- Turtle graphics
  - Introduction
  - Get started
  - Tutorial
    - Starting a turtle environment
    - Basic drawing
      - Pen control
      - The turtle's position
    - Making algorithmic patterns
  - How to...
    - Get started as quickly as possible
    - Use the `turtle` module namespace
    - Use turtle graphics in a script
    - Use object-oriented turtle graphics
  - Turtle graphics reference
    - Turtle methods
    - Methods of TurtleScreen/Screen
  - Methods of RawTurtle/Turtle and corresponding functions
    - Turtle motion
    - Tell Turtle's state
    - Settings for measurement
    - Pen control
      - Drawing state
      - Color control
      - Filling
      - More drawing control
    - Turtle state
      - Visibility
      - Appearance
    - Using events
    - Special Turtle methods
    - Compound shapes
  - Methods of TurtleScreen/Screen and corresponding functions
    - Window control
    - Animation control
    - Using screen events
    - Input methods
    - Settings and special methods
    - Methods specific to Screen, not inherited from TurtleScreen
  - Public classes
  - Explanation
  - Help and configuration
    - How to use help
    - Translation of docstrings into different languages
    - How to configure Screen and Turtles
  - `turtledemo` --- Demo scripts
  - Changes since Python 2.6
  - Changes since Python 3.0