vat21.txt

import tkinter
top=tkinter.Tk()
top.mainloop()
top.title('counting seconds')
button=tkinter.Button(top,txt='stop',width=25,
command=top.destroy)
button.pack()
top.mainloop()

###

from tkinter import *
master= Tk()
Label(master,text='first name').grid(row=0)
Label(master,text='last name').grid(row=1)
e1=Entry(master)
e2=Entry(master)
e1.grid(row=0,column=1)
e2.grid(row=1,column=1)
mainloop()


###  Drawing in GUI

import tkinter
top = tkinter.Tk()
canv = tkinter.Canvas(top,bg='blue',height=250,width=300)
coord= 10,50,240,210
arc=canv.create_arc(coord,start=0,extent=150,fill='red')
canv.pack()
top.mainloop()

#checkbox
from tkinter import *
import tkinter
top=tkinter.Tk()
CheckVar1=IntVar()
C1=Checkbutton(top,text='Music',variable=CheckVar1,onvalue=1,offvalue=0,height=5,width=20)
CheckVar2=IntVar()
C2=Checkbutton(top,text='Video',variable=CheckVar2,onvalue=1,offvalue=0,height=5,width=20)
C1.pack()
C2.pack()
top.mainloop()


#Textbox
from tkinter import *
import tkinter
top=tkinter.Tk()
L1=Label(top,text='User Name')
L1.pack(side=LEFT)
E1=Entry(top,bd=5)
E1.pack(side=RIGHT)
top.mainloop()


#Listbox
from tkinter import *
import tkinter
top=tkinter.Tk()
Lb1=Listbox(top)
Lb1.insert(1,'Python')
Lb1.insert(2,'Perl')
Lb1.insert(3,'C')
Lb1.insert(4,'PHP')
Lb1.insert(5,'JSP')
Lb1.insert(6,'Ruby')
Lb1.pack()
top.mainloop()

#Radiobutton/Option button
from tkinter import *
def sel():
    selection='You selected the option'+str(var.get())
    label.config(text=selection)
root=Tk()
var=IntVar()
R1=Radiobutton(root,text='Option 1',variable=var,value=1,command=sel)
R1.pack(anchor=W)
R2=Radiobutton(root,text='Option 2',variable=var,value=2,command=sel)
R2.pack(anchor=W)
R3=Radiobutton(root,text='Option 3',variable=var,value=3,command=sel)
R3.pack(anchor=W)
label=Label(root)
label.pack()
root.mainloop()



#scroll Bar
from tkinter import *
root=Tk()
scrollbar=Scrollbar(root)
scrollbar.pack(side=RIGHT,fill=Y)
mylist = Listbox(root,yscrollcommand=scrollbar.set)
for line in range(100):
    mylist.insert(END,'this is line number'+str(line))
mylist.pack(side=LEFT,fill=BOTH)
scrollbar.config(command=mylist.yview)
root.mainloop()



#Button Function
from tkinter import *
root=Tk()
frame=Frame(root)
frame.pack()
bottomframe=Frame(root)
bottomframe.pack(side=BOTTOM)
red=Button(frame,text='Red',fg='red')
red.pack(side=LEFT)
green=Button(frame,text='Green',fg='red')
green.pack(side=LEFT)
blue=Button(frame,text='Blue',fg='blue')
blue.pack(side=LEFT)
black=Button(frame,text='Black',fg='black')
black.pack(side=BOTTOM)
root.mainloop()


#Menu
from tkinter import *
root=Tk()
menu=Menu(root)
root.config(menu=menu)
filemenu=Menu(menu)
menu.add_cascade(label='File',menu=filemenu)
filemenu.add_command(label='New')
filemenu.add_command(label='Open')
filemenu.add_separator()
filemenu.add_command(label='Exit',command=root.quit)
helpmenu=Menu(menu)
menu.add_cascade(label='Help',menu=helpmenu)
helpmenu.add_command(label='About')
mainloop()


#write a program to show a canvas with Firstname, lastname as textbox.city as list.vihicle as checkbox.Gender as radio button. 
#There will be one save button and one refresh button

from tkinter import *
import tkinter
master= Tk()
Label(master,text='first name').grid(row=0)
Label(master,text='last name').grid(row=1)
e1=Entry(master)
e2=Entry(master)
e1.grid(row=0,column=1)
e2.grid(row=1,column=1)
Label(master,text='City').grid(row=2)
Lb=Listbox(master)
Lb.insert(1,'Mirganj')
Lb.insert(2,'Gopalganj')
Lb.insert(3,'Varanasi')
Lb.insert(4,'Delhi')
Lb.insert(5,'Kota')
Lb.insert(6,'Kolkata')
Lb.grid(row=3,column=1)
Label(master,text='Vehicle').grid(row=4)
CheckVar1=IntVar()
C1=Checkbutton(master,text='Car',variable=CheckVar1).grid(row=5,sticky=W,column=1)
CheckVar2=IntVar()
C2=Checkbutton(master,text='Bike',variable=CheckVar2).grid(row=5,sticky=W,column=2)
Label(master,text='Gender').grid(row=6)
var=IntVar()
Radiobutton(master,text='Male',variable=var,value=1).grid(row=7,column=1)
Radiobutton(master,text='Female',variable=var,value=2).grid(row=7,column=2)
save=Button(master,text='Save',fg='Black')
save.grid(row=8,column=1)
refresh=Button(master,text='Refresh',fg='Black')
refresh.grid(row=8,column=2)
mainloop()


#Label properties

lb=label(top,text='Hello',font=('Arial Bold'),50)

#Button Properties
btn=Button(top,text='Click',bg='yellow',fg='black')

#Button click event
def clicked():
    lb.configure(text='clicked')
btn=Button(top,text='Click',bg='yellow',fg='black',command=clicked)

#Bext Box properties
e1=Entry(top,width=20)

#Button Click Event regarding Text Box
def clicked():
    lb.configure(text='clicked')
btn=Button(top,text='Click',bg='yellow',fg='black',command=clicked)




from tkinter import *
master=Tk()
master.title('test')
lb=Label(master,text='Hello')
lb.grid(column=0,row=1)
e1=Entry(master,width=20)
e1.grid(column=0,row=2)
def clicked():
    lb.configure(text='clicked')
btn=Button(master,text='Click',command=clicked)
btn.grid(row=3,column=0)
mainloop()



from tkinter import *
master=Tk()
master.title('test')
lb=Label(master,text='Hello')
lb.grid(column=0,row=1)
e1=Entry(master,width=20)
e1.grid(column=0,row=2)
def clicked():
    r='Welcome '+e1.get()
    lb.configure(text=r)
btn=Button(master,text='Click',command=clicked)
btn.grid(row=3,column=0)
mainloop()



#combo box
from tkinter import *
from tkinter.ttk import *
master=Tk()
master.title('test')
combo=Combobox(master)
combo['values']=(1,10,20,30,40,'text')
combo.current(1)
combo.grid(row=0,column=0)
w=Spinbox(master,from_=0,to=10)
w.grid(row=1,column=0)
mainloop()


#spin box
from tkinter import *
from tkinter.ttk import *
master=Tk()
master.title('test')
w=Spinbox(master,from_=0,to=10)
w.grid(row=1,column=0)
mainloop()



#popup window
from tkinter import *
from tkinter import messagebox
master=Tk()
master.title('popup window')
def clicked():
    messagebox.showinfo('title','message information')
btn=Button(master,text='Click',command=clicked)
btn.pack()
mainloop()


#popup window
from tkinter import *
from tkinter import messagebox
master=Tk()
master.title('popup window')
def click1():
    messagebox.showinfo('title','message information')
btn1=Button(master,text='Click',command=click1)
btn1.grid(row=0,column=1)
def click2():
    messagebox.showwarning('warning','beware')
btn2=Button(master,text='Click',command=click2)
btn2.grid(row=1,column=1)
def click3():
    messagebox.showerror('error','wrong')
btn3=Button(master,text='Click',command=click3)
btn3.grid(row=2,column=1)
mainloop()


from tkinter import *
from tkinter import messagebox
master=Tk()
master.title('popup window')
res=messagebox.askquestion('1','what is C')
res=messagebox.askyesno('ans','yes/no')
res=messagebox.askyesnocancel('ans','Choice')
res=messagebox.askokcancel('2','Nope')
res=messagebox.askretrycancel('0','try')
mainloop()


#progressbar
from tkinter import *
from tkinter.ttk import Progressbar
from tkinter import ttk
master=Tk()
master.title('Progress Bar')
bar=Progressbar(master,length=300,style='black.Horizontal.TProgressbar')
bar['value']=70
bar.grid(row=0,column=1)
mainloop()

create a program to show a chessboard of 4*4 houses

from tkinter import *
master=Tk()
master.title('Chessboard')
for i in range(4):
    for j in range(4):
        if(i+j)%2==0:
            Button(master,width=30,height=12,bg='black').grid(row=i,column=j)
        else:
            Button(master,width=30,height=12,bg='white').grid(row=i,column=j)
mainloop()



import xlwt
from xlwt import Workbook
wb=Workbook()
sheet1=wb.add_sheet('sheet1')
sheet1.write(1,0,'ISBT DEHRADUN')
sheet1.write(2,0,'SHASTRADHARA')
sheet1.write(3,0,'CLEMEN TOWN')
sheet1.write(4,0,'RAJPUR ROAD')
sheet1.write(5,0,'CLOCK TOWER')
sheet1.write(0,1,'ISBT DEHRADUN')
sheet1.write(0,2,'SHASTRADHARA')
sheet1.write(0,3,'CLEMEN TOWN')
sheet1.write(0,4,'RAJPUR ROAD')
sheet1.write(0,5,'CLOCK TOWER')
wb.save('xlwt example.xls')



file=open('testfile.txt','w')
file.write('Hello world\n')
file.write('Hello world\n')
file.write('Hello world\n')
file.write('Hello world\n')
file.write('Hello world\n')
file.write('Hello world\n')
file.close()


file=open('testfile.txt','r')
print(file.read())
file=open('testfile.txt','r')
print(file.read(4))
print(file.readline(3))
o/p

Hello world
Hello world
Hello world
Hello world
Hello world
Hello world

Hello w
orl

file=open('testfile.txt','r')
for line in file:
    print(line)

o/p

Hello world

Hello world

Hello world

Hello world

Hello world

Hello world


#Regular Expression
import re
line='cats are smarter than dogs'
matchObj=re.match(r'(.*) are (.*) .*', line,re.M|re.I)
if matchObj:
    print('matchObj.group() : ', matchObj.group())
    print('matchObj.group(1) : ', matchObj.group(1))    
    print('matchObj.group(2) : ', matchObj.group(2)) 
else:
    print('No Match!!')
searchObj=re.search(r'(.*) are (.*) .*', line,re.M|re.I)
if searchObj:
    print('searchObj.group() : ', searchObj.group())
    print('searchObj.group(1) : ', searchObj.group(1))    
    print('searchObj.group(2) : ', searchObj.group(2)) 
else:
    print('Nothing Found!!')
o/p

matchObj.group() :  cats are smarter than dogs
matchObj.group(1) :  cats
matchObj.group(2) :  smarter than
searchObj.group() :  cats are smarter than dogs
searchObj.group(1) :  cats
searchObj.group(2) :  smarter than