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Articles on Trending Technologies
Technical articles with clear explanations and examples
Converting 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 MoreExplain soft reset with an example in Git
Soft reset will move the HEAD pointer to the commit specified. This will not reset the staging area or the working directory.ExampleThe diagram shows a file named File1.txt within the git repository. A, B, C and D represent lines that are added to the file. The diagram indicates that a commit is performed after adding each line A, B and C. c1 is the commit performed after adding line A, c2 is the commit after adding line B and C3 represents the commit after adding line C.Now add line D. This change is available in the working directory and this ...
Read MoreExplain how reset command works in Git
The commit command moves the HEAD of a branch implicitly. The below diagram shows that initially HEAD was pointing to commit c1. After each commit operation the HEAD pointer moves ahead to the new commit. We can perform a reset using the HEAD pointer or commit hash.The git reset command will explicitly or forcibly move the HEAD of the branch to a specific commit.When resetting the HEAD pointer, we have 3 options −SoftMixedHardHard ResetWhen performing a hard reset, git will copy the commit snapshot into the working area as well as the staging area. Due to this any changes done ...
Read MoreHow to abort a merge conflict in Git?
When doing a merge, you may run into one or more conflicts. Now what if we are not quite ready to handle this conflict yet. Perhaps you have several conflicts and you don't have enough time to spend on resolving these conflicts. In situations like this we can easily go back to the state before we started the merge.To abort the merge, we can use the following command$ git merge --abortNote that if we execute this command after resolving some conflicts and staging the changes, then these changes would not be saved. Once the command is fired, we are back ...
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