Python‎ > ‎tkinter‎ > ‎

tkinter.Tk


Definition
Create the toplevel class for the tk which contains window of the application.

Syntax
tkinter.Tk
Tk()

Options
Tk(self, screenName=None, baseName=None, className='Tk', useTk=1, sync=0, use=None)

Methods

Examples
The ButtonPress triggers the event which created new Tk widget while destroyed main Widget.
 from tkinter import*
import tkinter

def widget_Tk(buttonpress):
    master=Tk()
    master.title("Click Widget")
    master1.destroy()
    
master1=Tk()
master1.title("Main Widget")
master1.bind("<ButtonPress>", widget_Tk)

master1.mainloop()









Tk.geometry
The method created the dimension of the Tk Widget.
 
from tkinter import*

master=Tk()
master.geometry("300x300")

master.mainloop()





tkinter.OptionMenu()
The method returns with the creation of OptionMenu.
 from tkinter import*
master=Tk()

file=StringVar(master)
file.set("File")

optionmenu=OptionMenu(master, file,"New File", "Recent files", "Save", "Save as", "Print")
optionmenu.pack(side=LEFT)

edit=StringVar(master)
edit.set("Edit")

optionmenu=OptionMenu(master, edit,"Undu", "Redo", "Cut", "Copy", "Paste")
optionmenu.pack(side=LEFT)

master.mainloop()






The tkinter.Entry is used to check the string characteristics through string methods.

master=Tk()
master.title("String methods")

def cap():
    try:
        c=str.capitalize(s.get())
        s.set(c)
        
        pass

def cfold():
    try:
        c=str.casefold(s.get())
        s.set(c)
        
    except ValueError:
        pass

def ifier():
    try:
        if str.isidentifier(s.get())==True:
            s.set("Yes")
        
        else:
            s.set("No")
        
    except ValueError:
        pass

def ipace():
    try:
        if str.isspace(s.get())==True:
            s.set("Yes")
        
        else:
            s.set("No")

    except ValueError:
        pass

def iric():
    try:
       if str.isnumeric(s.get())==True:
           s.set("Yes")
       else:
           s.set("No")        
                
    except ValueError:
        pass

def ower():
    try:
        if str.islower(s.get())==True:
            s.set("Yes")
        
        else:
            s.set("No")        
        
    except ValueError:
        pass

def inum():
    try:
        if str.isalnum(s.get())==True:
            s.set("Yes")
        
        else:
            s.set("No")        
    except ValueError:
        pass

def imal():
    try:
        if str.isdecimal(s.get())==True:
            s.set("Yes")
        
        else:
            s.set("No")
        
    except ValueError:
        pass

    

def igit():
    try:
        if str.isdigit(s.get())==True:
            s.set("Yes")
        
        else:
            s.set("No")
        
    except ValueError:
        pass


def clr():
    try:
        s.set("")
        
              
    except ValueError:
        pass



entry=Entry(master, textvariable=s)
entry.grid(row=0, columnspan=4, sticky=W+E)


button_capitalize=Button(master, text="capitalize", width=10, command=cap)
button_capitalize.grid(row=2, column=0)

button_casefold=Button(master, text="casefold",width=10, command=cfold)
button_casefold.grid(row=2, column=1)

button_isidentifier=Button(master, text="isidentifier",width=10,command=ifier)
button_isidentifier.grid(row=2, column=2)


button_isspace=Button(master, text="isspace",width=10, command=ipace)
button_isspace.grid(row=3, column=0)

button_endswith=Button(master, text="endswith", width=10, command=iric)
button_endswith.grid(row=3, column=1)

button_islower=Button(master, text="islower",width=10, command=ower)
button_islower.grid(row=3, column=2)



button_isalnum=Button(master, text="isalnum",width=10, command=inum)
button_isalnum.grid(row=4, column=0)

button_isdecimal=Button(master, text="isdecimal",width=10, command=imal)
button_isdecimal.grid(row=4, column=1)

button_isdigit=Button(master, text="isdigit",width=10, command=igit)
button_isdigit.grid(row=4, column=2)

button_clear=Button(master, text="Clear", command=clr )
button_clear.grid(row=5, columnspan=3,sticky=W+E)











tkinter.Tk()
There simple mainloop widget(). 
import tkinter
class maintloop1():
    def __init__(self,a):
        self.a=a
        a.mainloop()

maintloop1(x)


The button command function is used to invoke the message box to display the random value.
from tkinter import*

master = Tk()
master.title("Random Widget")

def random_value():
    import random
    random1=random.random()
    messagebox.showinfo("Random Value is", random1)

labelframe=LabelFrame(master, fg="red", font=14, text="Random value generator")
labelframe.pack(side=BOTTOM)

button = Button(labelframe, text = "Click here", fg="blue", command = random_value)
button.pack(side=BOTTOM)

label = Label(labelframe, text = "Click on button to generate random value")
label.pack(side=BOTTOM)

master.mainloop()





tkinter.Tk()
tkinter.Label().pack()
The method return with:
 from tkinter import Tk
import tkinter


a=tkinter.Label(master,text="hello").pack()

if a=="hello":
    print("Yes, tkinter.Label(master,text='hello').pack() is equal to 'hello'.")
    print("No, tkinter.Label(master,text='hello').pack() is not equal to 'hello'.")
    
master.mainloop()

>>> 
No, tkinter.Label(master,text='hello').pack() is not equal to 'hello'.
>>>

The random.randrange(a,b) is used to generate values for the creation of  line.
from tkinter import *

master = Tk()
master.title("Random line draw")

def line():
    import random
    x1=random.randrange(0,300)
    y1=random.randrange(0,300)
    x2=random.randrange(0,300)
    y2=random.randrange(0,300)
    canvas.create_line(x1, y1, x2, y2)

   
canvas = Canvas(master, width=300, height=300)
canvas.pack(side=TOP)

button=Button(master, text="Click to draw random line", command=line).pack(fill=BOTH)

master.mainloop()





Random color lines are created through the random.sample and random.randrange(a,b) methods through for loop.
from tkinter import *

master = Tk()
master.title("Create random lines")

def line():
    import random
    color_list= ['snow', 'ghostwhite', 'whitesmoke', 'gainsboro', 'floralwhite', 'oldlace',
    'linen', 'antiquewhite', 'papayawhip', 'blanchedalmond', 'bisque', 'peach puff',
    'navajowhite', 'lemonchiffon', 'mint cream', 'azure', 'aliceblue', 'lavender',
    'lavenderblush', 'mistyrose', 'darkslategray', 'dimgray', 'slategray',
    'lightslategray', 'gray', 'lightgrey', 'midnightblue', 'navy', 'cornflowerblue', 'darkslateblue',
    'slateblue', 'mediumslateblue', 'lightslateblue', 'mediumblue', 'royal blue',  'blue',
    'dodgerblue', 'deepskyblue', 'skyblue', 'lightskyblue', 'steelblue', 'lightsteel blue',
    'lightblue', 'powderblue', 'paleturquoise', 'darkturquoise', 'mediumturquoise', 'turquoise',
    'cyan', 'lightcyan', 'cadetblue', 'mediumaquamarine', 'aquamarine', 'darkgreen', 'darkolivegreen',
    'darkseagreen', 'seagreen', 'mediumseagreen', 'lightseagreen', 'palegreen', 'springgreen',
    'lawngreen', 'mediumspringgreen', 'greenyellow', 'limegreen', 'yellowgreen',
    'forestgreen', 'olivedrab', 'darkkhaki', 'khaki', 'palegoldenrod', 'lightgoldenrodyellow',
    'lightyellow', 'yellow', 'gold', 'lightgoldenrod', 'goldenrod', 'darkgoldenrod', 'rosybrown',
    'indianred', 'saddlebrown', 'sandybrown',
    'darksalmon', 'salmon', 'lightsalmon', 'orange', 'darkorange',
    'coral', 'lightcoral', 'tomato', 'orangered', 'red', 'hotpink', 'deeppink', 'pink', 'lightpink',
    'palevioletred', 'maroon', 'mediumvioletred', 'violetred',
    'mediumorchid', 'darkorchid', 'darkviolet', 'blueviolet', 'purple', 'mediumpurple',
    'thistle', 'snow2', 'snow3',
    'snow4', 'seashell2', 'seashell3', 'seashell4', 'AntiqueWhite1', 'AntiqueWhite2',
    'AntiqueWhite3', 'AntiqueWhite4', 'bisque2', 'bisque3', 'bisque4', 'PeachPuff2',
    'PeachPuff3', 'PeachPuff4', 'NavajoWhite2', 'NavajoWhite3', 'NavajoWhite4',
    'LemonChiffon2', 'LemonChiffon3', 'LemonChiffon4', 'cornsilk2', 'cornsilk3',
    'cornsilk4', 'ivory2', 'ivory3', 'ivory4', 'honeydew2', 'honeydew3', 'honeydew4',
    'LavenderBlush2', 'LavenderBlush3', 'LavenderBlush4', 'MistyRose2', 'MistyRose3',
    'MistyRose4', 'azure2', 'azure3', 'azure4', 'SlateBlue1', 'SlateBlue2', 'SlateBlue3',
    'SlateBlue4', 'RoyalBlue1', 'RoyalBlue2', 'RoyalBlue3', 'RoyalBlue4', 'blue2', 'blue4',
    'DodgerBlue2', 'DodgerBlue3', 'DodgerBlue4', 'SteelBlue1', 'SteelBlue2',
    'SteelBlue3', 'SteelBlue4', 'DeepSkyBlue2', 'DeepSkyBlue3', 'DeepSkyBlue4',
    'SkyBlue1', 'SkyBlue2', 'SkyBlue3', 'SkyBlue4', 'LightSkyBlue1', 'LightSkyBlue2',
    'LightSkyBlue3', 'LightSkyBlue4', 'SlateGray1', 'SlateGray2', 'SlateGray3',
    'SlateGray4', 'LightSteelBlue1', 'LightSteelBlue2', 'LightSteelBlue3',
    'LightSteelBlue4', 'LightBlue1', 'LightBlue2', 'LightBlue3', 'LightBlue4',
    'LightCyan2', 'LightCyan3', 'LightCyan4', 'PaleTurquoise1', 'PaleTurquoise2',
    'PaleTurquoise3', 'PaleTurquoise4', 'CadetBlue1', 'CadetBlue2', 'CadetBlue3',
    'CadetBlue4', 'turquoise1', 'turquoise2', 'turquoise3', 'turquoise4', 'cyan2', 'cyan3',
    'cyan4', 'DarkSlateGray1', 'DarkSlateGray2', 'DarkSlateGray3', 'DarkSlateGray4',
    'aquamarine2', 'aquamarine4', 'DarkSeaGreen1', 'DarkSeaGreen2', 'DarkSeaGreen3',
    'DarkSeaGreen4', 'SeaGreen1', 'SeaGreen2', 'SeaGreen3', 'PaleGreen1', 'PaleGreen2',
    'PaleGreen3', 'PaleGreen4', 'SpringGreen2', 'SpringGreen3', 'SpringGreen4',
    'green2', 'green3', 'green4', 'chartreuse2', 'chartreuse3', 'chartreuse4',
    'OliveDrab1', 'OliveDrab2', 'OliveDrab4', 'DarkOliveGreen1', 'DarkOliveGreen2',
    'DarkOliveGreen3', 'DarkOliveGreen4', 'khaki1', 'khaki2', 'khaki3', 'khaki4',
    'LightGoldenrod1', 'LightGoldenrod2', 'LightGoldenrod3', 'LightGoldenrod4',
    'LightYellow2', 'LightYellow3', 'LightYellow4', 'yellow2', 'yellow3', 'yellow4',
    'gold2', 'gold3', 'gold4', 'goldenrod1', 'goldenrod2', 'goldenrod3', 'goldenrod4',
    'DarkGoldenrod1', 'DarkGoldenrod2', 'DarkGoldenrod3', 'DarkGoldenrod4',
    'RosyBrown1', 'RosyBrown2', 'RosyBrown3', 'RosyBrown4', 'IndianRed1', 'IndianRed2',
    'IndianRed3', 'IndianRed4', 'sienna1', 'sienna2', 'sienna3', 'sienna4', 'burlywood1',
    'burlywood2', 'burlywood3', 'burlywood4', 'wheat1', 'wheat2', 'wheat3', 'wheat4', 'tan1',
    'tan2', 'tan4', 'chocolate1', 'chocolate2', 'chocolate3', 'firebrick1', 'firebrick2',
    'firebrick3', 'firebrick4', 'brown1', 'brown2', 'brown3', 'brown4', 'salmon1', 'salmon2',
    'salmon3', 'salmon4', 'LightSalmon2', 'LightSalmon3', 'LightSalmon4', 'orange2',
    'orange3', 'orange4', 'DarkOrange1', 'DarkOrange2', 'DarkOrange3', 'DarkOrange4',
    'coral1', 'coral2', 'coral3', 'coral4', 'tomato2', 'tomato3', 'tomato4', 'OrangeRed2',
    'OrangeRed3', 'OrangeRed4', 'red2', 'red3', 'red4', 'DeepPink2', 'DeepPink3', 'DeepPink4',
    'HotPink1', 'HotPink2', 'HotPink3', 'HotPink4', 'pink1', 'pink2', 'pink3', 'pink4',
    'LightPink1', 'LightPink2', 'LightPink3', 'LightPink4', 'PaleVioletRed1',
    'PaleVioletRed2', 'PaleVioletRed3', 'PaleVioletRed4', 'maroon1', 'maroon2',
    'maroon3', 'maroon4', 'VioletRed1', 'VioletRed2', 'VioletRed3', 'VioletRed4',
    'magenta2', 'magenta3', 'magenta4', 'orchid1', 'orchid2', 'orchid3', 'orchid4', 'plum1',
    'plum2', 'plum3', 'plum4', 'MediumOrchid1', 'MediumOrchid2', 'MediumOrchid3',
    'MediumOrchid4', 'DarkOrchid1', 'DarkOrchid2', 'DarkOrchid3', 'DarkOrchid4',
    'purple1', 'purple2', 'purple3', 'purple4', 'MediumPurple1', 'MediumPurple2',
    'MediumPurple3', 'MediumPurple4', 'thistle1', 'thistle2', 'thistle3', 'thistle4',
    'gray1', 'gray2', 'gray3', 'gray4', 'gray5', 'gray6', 'gray7', 'gray8', 'gray9', 'gray10',
    'gray11', 'gray12', 'gray13', 'gray14', 'gray15', 'gray16', 'gray17', 'gray18', 'gray19',
    'gray20', 'gray21', 'gray22', 'gray23', 'gray24', 'gray25', 'gray26', 'gray27', 'gray28',
    'gray29', 'gray30', 'gray31', 'gray32', 'gray33', 'gray34', 'gray35', 'gray36', 'gray37',
    'gray38', 'gray39', 'gray40', 'gray42', 'gray43', 'gray44', 'gray45', 'gray46', 'gray47',
    'gray48', 'gray49', 'gray50', 'gray51', 'gray52', 'gray53', 'gray54', 'gray55', 'gray56',
    'gray57', 'gray58', 'gray59', 'gray60', 'gray61', 'gray62', 'gray63', 'gray64', 'gray65',
    'gray66', 'gray67', 'gray68', 'gray69', 'gray70', 'gray71', 'gray72', 'gray73', 'gray74',
    'gray75', 'gray76', 'gray77', 'gray78', 'gray79', 'gray80', 'gray81', 'gray82', 'gray83',
    'gray84', 'gray85', 'gray86', 'gray87', 'gray88', 'gray89', 'gray90', 'gray91', 'gray92',
    'gray93', 'gray94', 'gray95', 'gray97', 'gray98', 'gray99']


    color=random.sample(color_list,1)

    for i in range(0,100):
        x1=i+random.randrange(0,200)
        y1=i+random.randrange(0,200)
        x2=i+random.randrange(0,200)
        y2=i+random.randrange(0,200)
        canvas.create_line(x1, y1, x2, y2, fill=color)
    
canvas = Canvas(master, width=300, height=300, background="black")
canvas.pack(side=TOP)

button=Button(master, text="Click to create random lines", command=line).pack(fill=BOTH)

master.mainloop()





The reversed loop generated the oval through Canvas.create_oval method.
from tkinter import *

master = Tk()
master.title("Click to generate random ovals")

def bpress(click):

    import random
    color_list= ['snow', 'ghostwhite', 'whitesmoke', 'gainsboro', 'floralwhite', 'oldlace',
    'linen', 'antiquewhite', 'papayawhip', 'blanchedalmond', 'bisque', 'peachpuff',
    'navajowhite', 'lemonchiffon', 'mintcream', 'azure', 'aliceblue', 'lavender',
    'lavenderblush', 'mistyrose', 'darkslategray', 'dimgray', 'slategray',
    'lightslategray', 'gray', 'lightgrey', 'midnightblue', 'navy', 'cornflowerblue', 'darkslateblue',
    'slateblue', 'mediumslateblue', 'lightslateblue', 'mediumblue', 'royalblue',  'blue',
    'dodgerblue', 'deepskyblue', 'skyblue', 'lightskyblue', 'steelblue', 'lightsteelblue',
    'lightblue', 'powderblue', 'paleturquoise', 'darkturquoise', 'mediumturquoise', 'turquoise',
    'cyan', 'lightcyan', 'cadetblue', 'mediumaquamarine', 'aquamarine', 'darkgreen', 'darkolivegreen',
    'darkseagreen', 'seagreen', 'mediumseagreen', 'lightseagreen', 'palegreen', 'springgreen',
    'lawngreen', 'mediumspringgreen', 'greenyellow', 'limegreen', 'yellowgreen',
    'forestgreen', 'olivedrab', 'darkkhaki', 'khaki', 'palegoldenrod', 'lightgoldenrodyellow',
    'lightyellow', 'yellow', 'gold', 'lightgoldenrod', 'goldenrod', 'darkgoldenrod', 'rosybrown',
    'indianred', 'saddlebrown', 'sandybrown',
    'darksalmon', 'salmon', 'lightsalmon', 'orange', 'darkorange',
    'coral', 'lightcoral', 'tomato', 'orangered', 'red', 'hotpink', 'deeppink', 'pink', 'lightpink',
    'palevioletred', 'maroon', 'mediumvioletred', 'violetred',
    'mediumorchid', 'darkorchid', 'darkviolet', 'blueviolet', 'purple', 'mediumpurple',
    'thistle', 'snow2', 'snow3',
    'snow4', 'seashell2', 'seashell3', 'seashell4', 'AntiqueWhite1', 'AntiqueWhite2',
    'AntiqueWhite3', 'AntiqueWhite4', 'bisque2', 'bisque3', 'bisque4', 'PeachPuff2',
    'PeachPuff3', 'PeachPuff4', 'NavajoWhite2', 'NavajoWhite3', 'NavajoWhite4',
    'LemonChiffon2', 'LemonChiffon3', 'LemonChiffon4', 'cornsilk2', 'cornsilk3',
    'cornsilk4', 'ivory2', 'ivory3', 'ivory4', 'honeydew2', 'honeydew3', 'honeydew4',
    'LavenderBlush2', 'LavenderBlush3', 'LavenderBlush4', 'MistyRose2', 'MistyRose3',
    'MistyRose4', 'azure2', 'azure3', 'azure4', 'SlateBlue1', 'SlateBlue2', 'SlateBlue3',
    'SlateBlue4', 'RoyalBlue1', 'RoyalBlue2', 'RoyalBlue3', 'RoyalBlue4', 'blue2', 'blue4',
    'DodgerBlue2', 'DodgerBlue3', 'DodgerBlue4', 'SteelBlue1', 'SteelBlue2',
    'SteelBlue3', 'SteelBlue4', 'DeepSkyBlue2', 'DeepSkyBlue3', 'DeepSkyBlue4',
    'SkyBlue1', 'SkyBlue2', 'SkyBlue3', 'SkyBlue4', 'LightSkyBlue1', 'LightSkyBlue2',
    'LightSkyBlue3', 'LightSkyBlue4', 'SlateGray1', 'SlateGray2', 'SlateGray3',
    'SlateGray4', 'LightSteelBlue1', 'LightSteelBlue2', 'LightSteelBlue3',
    'LightSteelBlue4', 'LightBlue1', 'LightBlue2', 'LightBlue3', 'LightBlue4',
    'LightCyan2', 'LightCyan3', 'LightCyan4', 'PaleTurquoise1', 'PaleTurquoise2',
    'PaleTurquoise3', 'PaleTurquoise4', 'CadetBlue1', 'CadetBlue2', 'CadetBlue3',
    'CadetBlue4', 'turquoise1', 'turquoise2', 'turquoise3', 'turquoise4', 'cyan2', 'cyan3',
    'cyan4', 'DarkSlateGray1', 'DarkSlateGray2', 'DarkSlateGray3', 'DarkSlateGray4',
    'aquamarine2', 'aquamarine4', 'DarkSeaGreen1', 'DarkSeaGreen2', 'DarkSeaGreen3',
    'DarkSeaGreen4', 'SeaGreen1', 'SeaGreen2', 'SeaGreen3', 'PaleGreen1', 'PaleGreen2',
    'PaleGreen3', 'PaleGreen4', 'SpringGreen2', 'SpringGreen3', 'SpringGreen4',
    'green2', 'green3', 'green4', 'chartreuse2', 'chartreuse3', 'chartreuse4',
    'OliveDrab1', 'OliveDrab2', 'OliveDrab4', 'DarkOliveGreen1', 'DarkOliveGreen2',
    'DarkOliveGreen3', 'DarkOliveGreen4', 'khaki1', 'khaki2', 'khaki3', 'khaki4',
    'LightGoldenrod1', 'LightGoldenrod2', 'LightGoldenrod3', 'LightGoldenrod4',
    'LightYellow2', 'LightYellow3', 'LightYellow4', 'yellow2', 'yellow3', 'yellow4',
    'gold2', 'gold3', 'gold4', 'goldenrod1', 'goldenrod2', 'goldenrod3', 'goldenrod4',
    'DarkGoldenrod1', 'DarkGoldenrod2', 'DarkGoldenrod3', 'DarkGoldenrod4',
    'RosyBrown1', 'RosyBrown2', 'RosyBrown3', 'RosyBrown4', 'IndianRed1', 'IndianRed2',
    'IndianRed3', 'IndianRed4', 'sienna1', 'sienna2', 'sienna3', 'sienna4', 'burlywood1',
    'burlywood2', 'burlywood3', 'burlywood4', 'wheat1', 'wheat2', 'wheat3', 'wheat4', 'tan1',
    'tan2', 'tan4', 'chocolate1', 'chocolate2', 'chocolate3', 'firebrick1', 'firebrick2',
    'firebrick3', 'firebrick4', 'brown1', 'brown2', 'brown3', 'brown4', 'salmon1', 'salmon2',
    'salmon3', 'salmon4', 'LightSalmon2', 'LightSalmon3', 'LightSalmon4', 'orange2',
    'orange3', 'orange4', 'DarkOrange1', 'DarkOrange2', 'DarkOrange3', 'DarkOrange4',
    'coral1', 'coral2', 'coral3', 'coral4', 'tomato2', 'tomato3', 'tomato4', 'OrangeRed2',
    'OrangeRed3', 'OrangeRed4', 'red2', 'red3', 'red4', 'DeepPink2', 'DeepPink3', 'DeepPink4',
    'HotPink1', 'HotPink2', 'HotPink3', 'HotPink4', 'pink1', 'pink2', 'pink3', 'pink4',
    'LightPink1', 'LightPink2', 'LightPink3', 'LightPink4', 'PaleVioletRed1',
    'PaleVioletRed2', 'PaleVioletRed3', 'PaleVioletRed4', 'maroon1', 'maroon2',
    'maroon3', 'maroon4', 'VioletRed1', 'VioletRed2', 'VioletRed3', 'VioletRed4',
    'magenta2', 'magenta3', 'magenta4', 'orchid1', 'orchid2', 'orchid3', 'orchid4', 'plum1',
    'plum2', 'plum3', 'plum4', 'MediumOrchid1', 'MediumOrchid2', 'MediumOrchid3',
    'MediumOrchid4', 'DarkOrchid1', 'DarkOrchid2', 'DarkOrchid3', 'DarkOrchid4',
    'purple1', 'purple2', 'purple3', 'purple4', 'MediumPurple1', 'MediumPurple2',
    'MediumPurple3', 'MediumPurple4', 'thistle1', 'thistle2', 'thistle3', 'thistle4',
    'gray1', 'gray2', 'gray3', 'gray4', 'gray5', 'gray6', 'gray7', 'gray8', 'gray9', 'gray10',
    'gray11', 'gray12', 'gray13', 'gray14', 'gray15', 'gray16', 'gray17', 'gray18', 'gray19',
    'gray20', 'gray21', 'gray22', 'gray23', 'gray24', 'gray25', 'gray26', 'gray27', 'gray28',
    'gray29', 'gray30', 'gray31', 'gray32', 'gray33', 'gray34', 'gray35', 'gray36', 'gray37',
    'gray38', 'gray39', 'gray40', 'gray42', 'gray43', 'gray44', 'gray45', 'gray46', 'gray47',
    'gray48', 'gray49', 'gray50', 'gray51', 'gray52', 'gray53', 'gray54', 'gray55', 'gray56',
    'gray57', 'gray58', 'gray59', 'gray60', 'gray61', 'gray62', 'gray63', 'gray64', 'gray65',
    'gray66', 'gray67', 'gray68', 'gray69', 'gray70', 'gray71', 'gray72', 'gray73', 'gray74',
    'gray75', 'gray76', 'gray77', 'gray78', 'gray79', 'gray80', 'gray81', 'gray82', 'gray83',
    'gray84', 'gray85', 'gray86', 'gray87', 'gray88', 'gray89', 'gray90', 'gray91', 'gray92',
    'gray93', 'gray94', 'gray95', 'gray97', 'gray98', 'gray99']

    r=range(0,1000)
    for i in reversed(r):
            
        
        x1=click.x-i
        y1=click.y-i
        x2=click.x+i
        y2=click.y+i
        color=random.sample(color_list,1)
        canvas.create_oval(x1,y1,x2,y2, fill=color)

                
canvas = Canvas(master,width=500, height=500, background="black" )
canvas.pack(expand = YES)
canvas.bind( "<Double-1>", bpress )


master.mainloop()





tkinter.Tk()
tkinter.TK.mainloop
The button command executed the def print1.
from tkinter import*
import tkinter
    

def print1():
    tkinter.Label(master,text="Thank you").pack()

frame=tkinter.Label(master,text="Python Lake: Welcome").pack()

button=tkinter.Button(master, text="Submit", command=print1).pack()

master.mainloop()




The arc is created through tkinter.Canvas().Create_arc() through user input().
from tkinter import*
import tkinter
    
master=tkinter.Tk()

def create_arc1():
    canvas=tkinter.Canvas(master, width=250, height=300)
    canvas.pack()

    x1_value=input("Please enter x1 arc value :" )
    x1=int(x1_value)

    y1_value=input("Please enter y1 arc value :" )
    y1=int(y1_value)
    
    x2_value=input("Please enter x1 arc value :" )
    x2=int(x2_value)
    
    y2_value=input("Please enter x1 arc value :" )
    y2=int(y2_value)

    canvas.create_arc(x1, y1, x2, y2)
        
button=tkinter.Button(master, text="Create Arc",command=create_arc1).pack()







>>> 
Please enter x1 arc value :50
Please enter y1 arc value :110
Please enter x1 arc value :150
Please enter x1 arc value :250
>>> 




The code create the text() through button and then destroy and created new buttom compose.
from tkinter import*
from tkinter import Text
import tkinter
    
master=tkinter.Tk()

def message():
    compose_button.destroy()

    send_message_button=tkinter.Button(master, text="Submit Message")
    send_message_button.pack()
      
    compose_text=tkinter.Text(master)
    compose_text.pack()
    


compose_button=tkinter.Button(master, text="Compose Message",command=message)
compose_button.pack()


master.mainloop()










Examples
The method adjusted text alignment through Checkbutton.grid().
 from tkinter import*
master=Tk()

checkbutton1=Checkbutton(master,text="C1")
checkbutton1.grid(row=1,column=0)

checkbutton2=Checkbutton(master, text="C2")
checkbutton2.grid(row=1,column=2)

checkbutton3=Checkbutton(master,text="C3")
checkbutton3.grid(row=0,column=1)

checkbutton4=Checkbutton(master,text="C4")
checkbutton4.grid(row=2,column=1)

master.mainloop()






tkinter.Tk()
The method  Erase text, delete Entry, and destroy the widget() through Button(command) through default setting.
from tkinter import*

master=Tk()

def e1_delete():
    e1.delete(first=0,last=100)

def master_destroy():
     master.destroy()
    

def entry_destroy():
    e1.destroy()
    

e1=Entry(master, width=35)
e1.pack()


b_erase=Button(master, text="Erase", command=e1_delete)
b_erase.pack()

b_quit_destroy=Button(master, text="Quit", command=master_destroy)
b_quit_destroy.pack()


b_delete_text=Button(master, text="Delete Entry", command=entry_destroy)
b_delete_text.pack()


master.mainloop()


 









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