Add compund interest using python tkinter

Author: MohitHire

compound_Interest.py/compundinterest.py

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+# import all classes / functions from the tkinter
+from tkinter import *
+
+# Function for clearing the 
+# contents of all entry boxes 
+def clear_all() :
+
+	# whole content of entry boxes is deleted 
+	principal_field.delete(0, END) 
+	rate_field.delete(0, END) 
+	time_field.delete(0, END)
+	compound_field.delete(0, END)
+
+	# set focus on the principal_field entry box 
+	principal_field.focus_set() 
+
+
+# Function to find compound interest 
+def calculate_ci(): 
+
+	# get a content from entry box
+	principal = int(principal_field.get())
+	
+	rate = float(rate_field.get())
+
+	time = int(time_field.get())
+	
+	# Calculates compound interest 
+	CI = principal * (pow((1 + rate / 100), time))
+
+	# insert method inserting the 
+	# value in the text entry box.
+	compound_field.insert(10, CI)
+
+	
+
+# Driver code 
+if __name__ == "__main__" : 
+
+	# Create a GUI window 
+	root = Tk() 
+
+	# Set the background colour of GUI window 
+	root.configure(background = 'dark blue') 
+
+	# Set the configuration of GUI window 
+	root.geometry("400x250") 
+
+	# set the name of tkinter GUI window 
+	root.title("Compound Interest Calculator") 
+	
+	# Create a Principal Amount : label 
+	label1 = Label(root, text = "Principal Amount(Rs) : ", 
+				fg = 'white', bg = 'red') 
+
+	# Create a Rate : label 
+	label2 = Label(root, text = "Rate(%) : ", 
+				fg = 'white', bg = 'red') 
+	
+	# Create a Time : label 
+	label3 = Label(root, text = "Time(years) : ", 
+				fg = 'white', bg = 'red')
+
+	# Create a Compound Interest : label 
+	label4 = Label(root, text = "Compound Interest : ", 
+				fg = 'white', bg = 'red') 
+
+	# grid method is used for placing 
+	# the widgets at respective positions 
+	# in table like structure .
+
+	# padx keyword argument used to set padding along x-axis .
+	# pady keyword argument used to set padding along y-axis . 
+	label1.grid(row = 1, column = 0, padx = 10, pady = 10) 
+	label2.grid(row = 2, column = 0, padx = 10, pady = 10) 
+	label3.grid(row = 3, column = 0, padx = 10, pady = 10)
+	label4.grid(row = 5, column = 0, padx = 10, pady = 10)
+
+	# Create a entry box 
+	# for filling or typing the information.
+	principal_field = Entry(root) 
+	rate_field = Entry(root) 
+	time_field = Entry(root)
+	compound_field = Entry(root)
+
+	# grid method is used for placing 
+	# the widgets at respective positions 
+	# in table like structure .
+	
+	# padx keyword argument used to set padding along x-axis .
+	# pady keyword argument used to set padding along y-axis . 
+	principal_field.grid(row = 1, column = 1, padx = 10, pady = 10) 
+	rate_field.grid(row = 2, column = 1, padx = 10, pady = 10) 
+	time_field.grid(row = 3, column = 1, padx = 10, pady = 10)
+	compound_field.grid(row = 5, column = 1, padx = 10, pady = 10)
+
+	# Create a Submit Button and attached 
+	# to calculate_ci function 
+	button1 = Button(root, text = "Submit", bg = "red", 
+					fg = "black", command = calculate_ci) 
+
+	# Create a Clear Button and attached 
+	# to clear_all function 
+	button2 = Button(root, text = "Clear", bg = "red", 
+					fg = "black", command = clear_all)
+
+	button1.grid(row = 4, column = 1, pady = 10) 
+	button2.grid(row = 6, column = 1, pady = 10)
+
+	# Start the GUI 
+	root.mainloop()
+