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Data Structure

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Break - Continue

OOPS

Class - Introduction

Functions - Methods

Functions Introduction

Input and Print

Errors

Types of Errors

Regular Expressions

re - Introduction

Openpyxl

Interaction with Excel

Openpyxl - Charts

String Methods with Excel

Database Connections

Sqlite3 - Excel

Framework - Flask

Flask Introduction

Create Database

Webapp with Sqlite3

Pandas

Pandas_DataFrame_Introduction

Dataframe Dates

Dataframe Operations

Pandas - TextFiles

Web Scraping

matplotlib

File Handling

Data from Text file

tkinter

It is GUI tool kit
It installs along with python itself
tinker deals with different elements like buttons, checkboxes,comboxes,textboxes,messageboxes...
These elements called WIDGETS
Tk denotes about the class which we use to create the root window ie, the main window of our application.

How to import tkinter into pytho file?

import * from tkinter
from tkinter import *

What is GUI

Graphical User Interface
It enabels the application to build various wideges on window

window.mainloop():

loop starts after arranging all the widgets

Grid Perameters:

sticky: is useful when cell is larger than cell

How to create a layout?

we can create GUI layout in the following ways

pack: packs the all widgets, by placing one after another
grid: has to denote row and column of widget
place; has to mention exact location

tkinter -- Grid Perameters

tkinter -- events

"", "" and "" , are the events which can be executable with mouse buttons

: Left Mouse button

: middle Mouse button

: right Mouse button

: Mouse pointer entered widget

tkinter -- Canvas

To know complete list of Canvas:

To know complete list of Canvas:
print(dir(tkinter.Canvas))

How to create rectangle with Canvas?

tkinter -- messagebox

from tkinter import messagebox
print(dir(messagebox))

tkinter Message acceptance status

If you click on YES button, mentioned program will execute, which is mentioned under TRUE

If you click on NO button, mentioned program will execute, which is mentioned under FALSE

tkinter_print_Numbers_upto 11

after printing the numbers message box will display on screen

tkinter_print_Numbers_If you click on YES

Click on animation to view video

Print numbers based on value entered in textbox

Click on image to view the video, how this program works

min number from textbox and max from combobox

Listbox:

There are 4 types of selection modes to the listbox

Browse: select one item and drag it
SINGLE: select single item
MULTIPLE: select multiple items
EXTENDED: select a range of lines by dragging mouse

Print numbers based on value selected in listbox

Click on image to view the video, which denotes how this program works:

Print numbers based on value selected in listbox - Class creation

listbox - multiple selection with exception handling

Even or odd numbers - with Listbox and radio buttons

FileDialogue - AskDirectory

FileDialogue - filedialogue_AskOpenFileNames

FileDialogue - ask_openfilename