Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Articles on Trending Technologies
Technical articles with clear explanations and examples
How can I set the default value of my Tkinter Scale widget slider to 100?
Tkinter Scale Widgets are used to provide the visual representation of data items where we can modify or change the value of data items. In order to change the state of data or select multiple data in the field, we can use the Scale widget.The Scale Widget can be created by initializing a Scale(parent, from_, to, orient, options) constructor.However, sometimes we need to set the default value of the Tkinter Scale widget, which can be set by using the set(numeric_value) method.ExampleIn this example, we will create a scale widget that sets a default value for the slider.#Import the required Libraries ...
Read MoreHow can I put two buttons next to each other in Tkinter?
Tkinter generally provides three general ways to define the geometry of the widgets. They are − Place, Pack, and Grid Management. If we use the Pack geometry manager, then place the two buttons in the frame using side property. It places the buttons horizontally stacked in the window in (Left, Right, Top and Bottom) direction. The side property maintains the same width and internal padding between all the adjacent widget in the application.Example#Import the required Libraries from tkinter import * from tkinter import ttk import random #Create an instance of Tkinter frame win = Tk() #Set the geometry of Tkinter frame ...
Read MoreHow can I insert a string in an Entry widget that is in the "readonly" state using Tkinter?
Tkinter Entry widget is used to insert single-line text input. We can use the Entry widget to create forms where single-line input is the prime requirement.Sometimes, we need to insert a predefined text inside the Entry Widget. In such cases, we can use insert(INSERT, ) method. These are generally called as Placeholders for the Entry widget.Let us suppose that we want to change the state of our text as read-only. Here, we can use state= ‘readonly’ property while configuring the Entry widget.Example#Import the required Libraries from tkinter import * from tkinter import ttk #Create an instance of tkinter frame win = ...
Read MoreConverting Tkinter program to exe file
Let us suppose that we want to create a standalone app (executable application) using tkinter. We can convert any tkinter application to an exe compatible file format using the PyInstaller package in Python.To work with pyinstaller, first install the package in the environment by using the following command, pip install pyinstallerOnce installed, we can follow the steps to convert a Python Script File (contains a Tkinter application file) to an Executable file.Install pyinstaller using pip install pyinstaller in Windows operating system. Now, type pyinstaller --onefile -w filename and press Enter.Now, check the location of the file (script file) and you will ...
Read MoreBinding mouse double click in Tkinter
Let us suppose that for a particular application, we want to bind the mouse double-click so that it performs some event or operation. We can use the bind(‘’, handler) or bind(‘’, handler) methods to bind the mouse Left or Right Buttons with a handler or a callback function.ExampleIn this example, we will create an application that contains a button. When we double click the button, it will open a popup window.#Import required libraries from tkinter import * from tkinter import ttk #Create an instance of tkinter frame win= Tk() #Define the geometry of the window win.geometry("750x250") #Define a function def ...
Read MoreHow to add collaborators to a repository in GitHub?
Even if you have a public repository in GitHub, not everyone has the permission to push code into your repository. Other users have a read-only access and cannot modify the repository. In order to allow other individuals to make changes to your repository, you need to invite them to collaborate to the project.The following steps should be performed to invite other team members to collaborate with your repository.Step 1 − Click on the Settings tab in the right corner of the GitHub page.Step 2 − Go to Manage Access option under the Settings tab. On the Manage Access page, you ...
Read MoreHow to create a GitHub repository
A GitHub account is a pre-requisite for creating a GitHub repository. Follow the below steps after registering with GitHub.Step 1 − Login to the GitHub account. Once you login to your account you will see a ‘+’ button on the right. Click on the button and select "New repository" option to create a new repository.Configure the following in the create a new repository page.Repository name: GitHub will validate the repository name that you have entered.Type of the repository: GitHub lets you create the following types of repositories −Private repository − Private Repository is the one that can be accessed only ...
Read MoreHow to clone a GitHub repository?
Cloning a repository involves downloading a copy of the source code from source control. In other words, cloning is creating a copy of an existing repository. Consider an example where multiple users are working on a project. This feature can be used by the users to create a development copy.If you have a GitHub repository, you need to first invite collaborators into the repository. Each collaborator will then clone the repository into their local machines.Locally they will work with this cloned repository, make local changes and perform commits on it. Once they are ready to share their changes with others ...
Read MoreExplain rebasing in Git
Rebasing alters a sequence of commits. It moves or relocates a sequence of commits from current branch to the target branch. By default, the commits from the current branch that are not already on the other branch are rebased. Rebasing technique allows us to keep a linear history.Let us understand from this from the diagram below.To rebase we need to be in the branch which needs to be rebased into the target. In our scenario, we need to execute the rebase command on the feature branch. After executing the rebase command we will get a linear history.After executing the rebase ...
Read MoreHow to undo a faulty merge with reset command in Git?
Let us say we performed a merge commit and later found out that the code is not compiling or our application is not working. This happens if we make mistakes while merging. In situations like these we need to undo the merge using either −reset command; ORrevert commandThe git reset command can be used to undo local changes to the state of a Git repository. A git reset moves the HEAD pointer to a given commit and updates the index to match that commit. This command rewrites the commit history. However, if we have shared our commits with other team ...
Read More