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Python: Age Calculator using Tkinter
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Prerequisites:Python GUI – tkinter
Python offers multiple options for developing a GUI (Graphical User Interface). Out of all the GUI methods, Tkinter is the most commonly used method. It is a standard Python interface to the Tk GUI toolkit shipped with Python. Python with Tkinter outputs the fastest and easiest way to create GUI applications. Creating a GUI using Tkinter is an easy task.
 

Steps 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. 
     

Below is what the GUI looks like:


Let's create a GUI based weight converter that accepts a kilogram input value and converts that value to grams, pounds, and ounces when the user clicks the Convert button.


Below is the implementation.
 

Python3
# Python program to  create a simple GUI# weight converter using Tkinterfromtkinterimport*# Create a GUI windowwindow=Tk()# Function to convert weight# given in kg to grams, pounds# and ouncesdeffrom_kg():# convert kg to gramgram=float(e2_value.get())*1000# convert kg to poundpound=float(e2_value.get())*2.20462# convert kg to ounceounce=float(e2_value.get())*35.274# Enters the converted weight to# the text widgett1.delete("1.0",END)t1.insert(END,gram)t2.delete("1.0",END)t2.insert(END,pound)t3.delete("1.0",END)t3.insert(END,ounce)# Create the Label widgetse1=Label(window,text="Enter the weight in Kg")e2_value=StringVar()e2=Entry(window,textvariable=e2_value)e3=Label(window,text='Gram')e4=Label(window,text='Pounds')e5=Label(window,text='Ounce')# Create the Text Widgetst1=Text(window,height=1,width=20)t2=Text(window,height=1,width=20)t3=Text(window,height=1,width=20)# Create the Button Widgetb1=Button(window,text="Convert",command=from_kg)# grid method is used for placing# the widgets at respective positions# in table like structuree1.grid(row=0,column=0)e2.grid(row=0,column=1)e3.grid(row=1,column=0)e4.grid(row=1,column=1)e5.grid(row=1,column=2)t1.grid(row=2,column=0)t2.grid(row=2,column=1)t3.grid(row=2,column=2)b1.grid(row=0,column=2)# Start the GUIwindow.mainloop()

Output:


Weight Conversion GUI using Tkinter
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