Question

Question:

- x Lè DRAFT P1.py - C:\Users\Darren Louw\Desktop\DRAFT P1.py (3.8.2)* File Edit Format Run Options Window Help from tkinter import* HEIGHT=300 WIDTH=400 root=Tk) lowerframe=Frame (root, bg='green', bd=10) lowerframe.place (relx=0.5, rely=0.6, relwidth=0.75, relheight=0.2, anchor='n') labell-Label (lowerframe, bg='white', font=30) labell.place (relwidth=0.25, relheight=0.8, relx=0) def countl(): countl=0 for i in range (1,1001): num= i*i if num>1000: countl=countlul print('numbers in range 1 to 1000 that are non perfect squares are:', count1)|| canvas=Canvas (root, height=HEIGHT, width=WIDTH) canvas.pack() frame=Frame (root, bg='green', bd=5) frame.place (relx=0.5, rely=0.1, relwidth=0.75, relheight=0.4, anchor='n') buttonl=Button (frame, text='Bl', font=40, bg='blue', command=lambda:countl) buttonl.place (relx=0, relheight=0.5, relwidth=0.25) button2=Button(frame, text='62',font=40, bg='red') button2.place (relx=0.3, relheight=0.5, relwidth=0.25) button3=Button (frame, text='33', font=40, bg='yellow') button3.place (relx=0.6, relheight=0.5, relwidth=0.25) lowerframe=Frame (root, bg='green', bd=10) lowerframe.place (relx=0.5, rely=0.6, relwidth=0.75, relheight=0.2, anchor='n') labell-Label(lowerframe, bg='white', font=30, text=print (countl)) labell.place (relwidth=0.25, relheight=0.8, relx=0) Type here to search Ln: 18 Col: 88 17:44 07/07/2020 ir ,C ENG

I am unable to get a output of my function on my label1 when I click on button 1, please help?

Answer 1

I have written the program and made changes just to display the value on label1 when button1 is pressed. Notice the code on line 13, label1.config() is used to refresh the text attribute of the label1. Below is the screenshot of the code to check indentation.

ܠܚܪ 4 7 from tkinter import * 2 HEIGHT = 300 3 WIDTH = 400 root = Tk() 5 6 -def count(): count1=0 8 for i in range(1,1001): 9 num = ixi 10 if num> 1000: 11 A count1+=1 12 print ("Numbers in range 1 to 1000 that are non perfect squares are:",counti) 13 A ! label1.config(text=counti) 14 15 canvas = Canvas(root, height=HEIGHT, width =WIDTH) 16 canvas.pack() 17 18 frame=Frame (root, bg='green', bd=5) 19 frame.place(relx=0.5, rely=0.1, relwidth=0.75, relheight= 0.4, anchor='n') 20 21 button1= Button(frame, text='31', font = 40, command=count) 22 button1.place(relx=0, relwidth=0.25, relheight= 0.5) 23 24 lowerframe = Frame(root, bg='green', bd=10) 25 Lowerframe.place(relx=0.5, rely=0.6, relwidth=0.75, relheight=0.2, anchor='n') 26 27 label1=Label(lowerframe, bg='white', font=30) 28 label1.place(relwidth=0.25, relheight=0.8, relx=0) 29 root.mainloop() 30

Below is the output of the code:

Before the button B1 is pressed:

tk B1

After B1 is pressed:

tk U B1 969 T1PNP

Below is the code to copy:

from tkinter import *
HEIGHT = 300
WIDTH = 400
root = Tk()

def count():
   count1=0
   for i in range(1,1001):
      num = i*i
      if num> 1000:
         count1+=1
   print ("Numbers in range 1 to 1000 that are non perfect squares are:",count1)
   label1.config(text=count1) #CHANGED LINE

canvas = Canvas(root,height=HEIGHT, width =WIDTH)
canvas.pack()

frame=Frame(root,bg='green', bd=5)
frame.place(relx=0.5,rely=0.1, relwidth=0.75, relheight= 0.4, anchor='n')

button1= Button(frame, text='B1', font = 40, command=count)
button1.place(relx=0, relwidth=0.25, relheight= 0.5)

lowerframe = Frame(root, bg='green', bd=10)
lowerframe.place(relx=0.5, rely=0.6, relwidth=0.75, relheight=0.2, anchor='n')

label1=Label(lowerframe,bg='white', font=30)
label1.place(relwidth=0.25, relheight=0.8, relx=0)

root.mainloop()