Creating GUI Applications using tkinter

Download the package tk

conda install tk

pip install tk

# create a new frame
from tkinter import *
root = Tk()
root.geometry("600x250")
root.mainloop()

# Using Label in Frame
from tkinter import *
root= Tk()
root.geometry("600x250")
my_text= Label(root, text= "This is a New Line Text", font=('Helvetica bold', 16))
my_text.pack(pady=30)
root.mainloop()

# Adding Buttons

from tkinter import *

from tkinter import ttk

win= Tk()

win.geometry("400x300")

def save():

   print("Saved")

cmdsave= ttk.Button(win, text="Save",command=lambda:save())

cmdsave.pack()

win.mainloop()

# Using Images

from tkinter import *

root= Tk()

root.geometry("750x280")

canvas= Canvas(root, width=300, height=300)

logo = PhotoImage(file='logo.png')

canvas.create_image((200, 140), image=logo)

canvas.pack()

root.mainloop()

# Sample GUI Application

from tkinter import *

fields = ('Annual Rate', 'Number of Payments', 'Loan Principle', 'Monthly Payment')

def monthly_payment(entries):

   r = (float(entries['Annual Rate'].get()) / 100) / 12

   loan = float(entries['Loan Principle'].get())

   n = float(entries['Number of Payments'].get())

   q = (1 + r)** n

   monthly = r * ( (q * loan) / ( q - 1 ))

   monthly = ("%8.2f" % monthly).strip()

   entries['Monthly Payment'].delete(0,END)

   entries['Monthly Payment'].insert(0, monthly )

def makeform(root, fields):

   entries = {}

   for field in fields:

      row = Frame(root)

      lab = Label(row, width=22, text=field+": ", anchor='w')

      ent = Entry(row)

      ent.insert(0,"0")

      row.pack(side = TOP, fill = X, padx = 5 , pady = 5)

      lab.pack(side = LEFT)

      ent.pack(side = RIGHT, expand = YES, fill = X)

      entries[field] = ent

   return entries

if __name__ == '__main__':

   root = Tk()

   ents = makeform(root, fields)

   b1 = Button(root, text='Monthly Payment',command=lambda: monthly_payment(ents))

   b1.pack(side = LEFT, padx = 5, pady = 5)

   root.mainloop()