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Python Articles
Page 730 of 852
How to delete Tkinter widgets from a window?
Sometimes, we want to remove a widget that is of no use in the application. We can delete widgets from the window or frame using the .destroy method in tkinter. It can be invoked in the widget by defining a function for it.ExampleIn this example, we have created a button that will remove the text label widget from the window.#Import the tkinter library from tkinter import * #Create an instance of tkinter frame win = Tk() #Set the geometry win.geometry("650x450") #Define a function to remove the text from the screen def delete_text(): text.destroy() #Create a ...
Read MoreHow to display full-screen mode on Tkinter?
Tkinter displays the application window by its default size. However, we can display a full-screen window by using attributes('fullscreen', True) method. The method is generally used for assigning a tkinter window with properties like transparentcolor, alpha, disabled, fullscreen, toolwindow, and topmost.Example#Import the tkinter library from tkinter import * #Create an instance of tkinter frame win = Tk() #Set the geometry win.geometry("650x250") #Add a text label and add the font property to it label= Label(win, text= "Hello World!", font=('Times New Roman bold', 20)) label.pack(padx=10, pady=10) #Create a fullscreen window win.attributes('-fullscreen', True) win.mainloop()OutputRunning the above code will ...
Read MoreHow to make a Tkinter widget invisible?
To make a tkinter widget invisible, we can use the pack_forget() method. It is generally used to unmap the widgets from the window.ExampleIn the following example, we will create a label text and a button that can be used to trigger the invisible event on the label text widget.#Import the required libraries from tkinter import * #Create an instance of tkinter frame win= Tk() #Set the geometry of frame win.geometry("600x250") #Set the resizable property False win.resizable(False, False) #Make the widgets Invisible def make_invisible(widget): widget.pack_forget() #Create a label for the window or frame label=Label(win, text="Hello ...
Read MoreHow to make a Tkinter window jump to the front?
In order to make the tkinter window or the root window jump above all the other windows, we can use attributes method that will generally take two values specifying the “topmost” value and the other is a Boolean value.Example#Importing the library from tkinter import * #Create an instance of tkinter window or frame win= Tk() #Setting the geometry of window win.geometry("600x250") #Create a Label Label(win, text= "Hello Everyone!", font=('Helvetica bold', 15)).pack(pady=20) #Make the window jump above all win.attributes('-topmost', 1) win.mainloop()OutputRunning the above code will make the window stay above all other windows,
Read MoreHow to put a Tkinter window on top of the others?
Whenever we create a GUI program, tkinter generally presents the output screen in the background. In other words, tkinter displays the program window behind other programs. In order to put the tkinter window on top of others, we are required to use attributes('- topmost', True) property. It pulls up the window on the upside.Example#Importing the library from tkinter import * #Create an instance of tkinter window or frame win= Tk() #Setting the geometry of window win.geometry("600x350") #Create a Label Label(win, text= "Hello World! ", font=('Helvetica bold', 15)).pack(pady=20) #Make the window jump above all win.attributes('-topmost', True) ...
Read MoreHow to set default text for a Tkinter Entry widget?
Tkinter Entry widget is used to print and display a single line of text taken from the user Input. It is used for many applications such as creating login forms, signup forms, and other user interaction forms.We can set the default text for the Entry Widget using insert() function by passing the default text as the argument.ExampleIn this example, we have created an Entry widget that has a default text.#Import the tkinter library from tkinter import * #Create an instance of tkinter frame win = Tk() #Set the geometry win.geometry("650x250") #Create an Entry Widget entry= Entry(win) entry.insert(END, 'Enter ...
Read MoreHow to set the border color of certain Tkinter widgets?
Let us suppose we want to change the border color of a tkinter widget. We can configure the widget by passing the highlightcolor, highlightbackground property of the widget.ExampleIn this example, we have created an Entry widget and a button that can be triggered to change the border color of the Entry Widget.#Import the required libraries from tkinter import * #Create an instance of tkinter frame win= Tk() #Set the geometry of frame win.geometry("600x250") #Define a function to change the color of entry widget def change_color(): text.config(highlightthickness=2, highlightbackground="red") #Create a Entry widget for which we want ...
Read MoreWhat is the difference between root.destroy() and root.quit() in Tkinter(Python)?
When we invoke the destroy() method with the tkinter window object, it terminates the mainloop process and destroys all the widgets inside the window. Tkinter destroy() method is mainly used to kill and terminate the interpreter running in the background.However, quit() method can be invoked in order to stop the process after the mainloop() function. We can demonstrate the functionalities of both methods by creating a button Object.Example#Import the required libraries from tkinter import * #Create an instance of tkinter frame win= Tk() #Set the geometry of frame win.geometry("650x450") #Define a function for Button Object def quit_win(): ...
Read MoreWhat is the difference between the widgets of tkinter and tkinter.ttk in Python?
tkinter.ttk is a module that is used to style the tkinter widgets. Just like CSS is used to style an HTML element, we use tkinter.ttk to style tkinter widgets.Here are the major differences between tkinter widget and tkinter.ttk −Tkinter widgets are used to add Buttons, Labels, Text, ScrollBar, etc., however, tkinter.ttk supports a variety of widgets as compared to tkinter widgets.Tkinter.ttk doesn't support Place, Pack() and Grid(), thus it is recommended to use tkinter widget with ttk.Ttk has many features and configurations that extend the functionality of a native application and make it look more modern.Tkinter widget is a native ...
Read MoreHow to use Boto3 to get the specified version table definition of a database from AWS Glue Data Catalog?
Problem Statement − Use boto3 library in Python to retrieve the table definition of a database.Example − Retrieve the table definition of a database ‘QA-test’ and table as ‘security’ for version 2.Approach/Algorithm to solve this problemStep 1 − Import boto3 and botocore exceptions to handle exceptions.Step 2 − database_name, table_name and version_id is the mandatory parameter. It fetches definition of given table for a specified version.Step 3 − Create an AWS session using boto3 library. Make sure region_name is mentioned in default profile. If it is not mentioned, then explicitly pass the region_name while creating the session.Step 4 − Create ...
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