Rank Based Percentile Gui Calculator using Tkinter

Prerequisites: Introduction to tkinter, Program to calculate percentile of a student based on rank

Python offers multiple options for developing a GUI (Graphical User Interface). Out of all the GUI methods, Tkinter is the most commonly used method. In this article, we will learn how to create Rank Based – Percentile Gui Calculator application using Tkinter, with a step-by-step guide.

To create a Tkinter:

Importing the module – tkinter
Create the main window (container)
Add any number of widgets to the main window.
Apply the event Trigger on the widgets.

Let’s create a GUI based simple Rank Based – Percentile Gui Calculator application :

Below is the implementation :

# import all functions from the tkinter     
from tkinter import *
  
   
# Function to calculate the percentile   
def getPercentile() : 
   
    # take a value from the respective entry boxes  
    # get method returns current text as string  
    students= int(total_participantField.get()) 
       
    rank = int(rankField.get()) 
   
    # variable to store the result upto 3 
    # decimal points   
    result = round((students - rank) / students * 100,3); 
   
    # insert method inserting the    
    # value in the text entry box.  
    percentileField.insert(10, str(result))  
     
       
# Function for clearing the    
# contents of all text entry boxes  
def Clear(): 
       
    # deleting the content from the entry box  
    rankField.delete(0, END) 
       
    total_participantField.delete(0, END) 
       
    percentileField.delete(0, END) 
       
   
# Driver Code 
if __name__ == "__main__" : 
   
    # Create a GUI window  
    gui = Tk()  
     
    # Set the background colour of GUI window    
    gui.configure(background = "light green")  
     
    # set the name of tkinter GUI window   
    gui.title("Rank Based- Percentile Calculator")  
     
     # Set the configuration of GUI window  
    gui.geometry("650x200")  
   
    # Create a Rank: label   
    rank = Label(gui, text = "Rank", bg = "blue") 
   
    # Create a And: label   
    andl = Label(gui, text = "And", bg = "blue") 
     
    # Create a Total Participants : label  
    total_participant = Label(gui,  
                              text = "Total Participants",  
                              bg = "blue")  
   
    # Create a Find Percentile Button and  
    # attached to getPercentile function  
    find = Button(gui, text = "Find Percentile",  
                  fg = "Black", bg = "Red", 
                  command = getPercentile) 
       
    # Create a Percentile : label   
    percentile = Label(gui, text = "Percentile", bg = "blue")  
   
    # Create a Clear Button and attached  
    # to Clear function  
    clear = Button(gui, text = "Clear", 
                   fg = "Black", bg = "Red", 
                   command = Clear)  
   
    # grid method is used for placing    
    # the widgets at respective positions    
    # in table like structure . 
   
    # padx attributed provide x-axis margin   
    # from the root window to the widget.  
    rank.grid(row = 1, column = 1,padx = 10) 
   
    andl.grid(row = 1, column = 4) 
                    
    total_participant.grid(row = 1, column = 6, padx = 10) 
   
    # pady attributed provide y-axis  
    # margin from the widget.     
    find.grid(row = 3, column = 4,pady = 10) 
       
    percentile.grid(row = 4, column = 3,padx = 10) 
       
    clear.grid(row = 5, column = 4,pady = 10) 
   
    # Create a text entry box for filling or 
    # typing the information.    
    rankField = Entry(gui) 
       
    total_participantField = Entry(gui) 
       
    percentileField = Entry(gui) 
   
    # grid method is used for placing    
    # the widgets at respective positions    
    # in table like structure .  
    rankField.grid(row = 1, column = 2) 
       
    total_participantField.grid(row = 1, column = 7) 
       
    percentileField.grid(row = 4, column = 4) 
       
    # Start the GUI  
    gui.mainloop()  

Output :
output1
output2

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