Tkinter is the standard GUI library for Python :¶

fast and easy way to create GUI applications in Python
handy for making your CLI applications user friendly and flexible

Installation: Tkinter module already comes with Python.(Batteries included)

**Usage**: for Python 2x versions use **"import Tkinter"**, for Python 3x versions use **"import tkinter"**.

In [3]:

import tkinter

In [10]:

#Basic example - a program, that's creates and displays a window to the user.

#Window gets created
root = tkinter.Tk()

#Needed for the window to run as long as we don't close it.
root.mainloop()

Tkinter widgets:¶

provides various controls, such as buttons, labels and text boxes used in a GUI application. These controls are commonly called widgets
there are many types of widgets in the Tkinter library. Here are some popular widget examples:

In [17]:

root = tkinter.Tk()

def hello():
   print("Hello, World!")

B = tkinter.Button(root, text ="Hello", command = hello)

B.pack()
root.mainloop()

Hello, World!

In [18]:

root = tkinter.Tk()

C = tkinter.Canvas(root, bg="blue", height=250, width=300)

coord = 10, 50, 240, 210
arc = C.create_arc(coord, start=0, extent=150, fill="red")

C.pack()
root.mainloop()

In [31]:

from tkinter import *

root = Tk()
var = StringVar()
label = Label( root, textvariable=var)

var.set("Hey!? How are you doing?")
label.pack()
root.mainloop()

4. Entry label - used to accept single-line text strings from a user.¶

In [33]:

from tkinter import *

top = Tk()
L1 = Label(top, text="User Name")
L1.pack( side = LEFT)
E1 = Entry(top, bd =5)
E1.pack(side = RIGHT)

top.mainloop()

5. tkMessageBox - used to display message boxes in your applications.¶

In [45]:

import tkinter
from tkinter import messagebox

top = tkinter.Tk()

def helloCallBack():
   messagebox.showinfo( "Hello Python", "Hello World")

B = tkinter.Button(top, text ="Hello", command = helloCallBack)

B.pack()
top.mainloop()

There are many ways we can configure our tkinker widgets
Some popular ways are :

In [48]:

#DIMENSIONS
root = tkinter.Tk()

root.geometry("500x500")
root.resizable(0, 0)

root.mainloop()

In [52]:

#COLORS
#FONT
root = tkinter.Tk()

def hello():
   print("Hello, World!")

B = tkinter.Button(root, text ="Hello", bg = "#000000", fg = "blue", font = "none 16 italic underline", command = hello)

B.pack()
root.mainloop()

Hello, World!

Addictional resources:¶

http://wxpython.org - open-source Python interface for wxWindows
http://www.jython.org - Python is a Python port for Java which gives Python scripts seamless access to Java class libraries on the local machine
https://wiki.python.org/moin/TkInter - python wiki page about Tkinter
https://www.tutorialspoint.com/python/python_gui_programming.htm - more about other Tkinter widgets, atributes

Tkinter is the standard GUI library for Python :¶

Tkinter widgets:¶

1. Button widget - is used to add buttons in a Python application. These buttons can display text or images that convey the purpose of the buttons. You can attach a function or a method to a button which is called automatically when you click the button.¶

2. Canvas widget - the Canvas is a rectangular area intended for drawing pictures or other complex layouts. You can place graphics, text, widgets or frames on a Canvas.¶

3. Label widget - implements a display box where you can place text or images. The text displayed by this widget can be updated at any time you want.¶

4. Entry label - used to accept single-line text strings from a user.¶

5. tkMessageBox - used to display message boxes in your applications.¶

Widget attributes:¶

Addictional resources:¶