Category: Computer Programming Tutorials

🚀 How to Build a Jenkins Pipeline to Automate Building Image and Pushing to DockerHub for Flask App Ready to take your DevOps skills to the next level? In this hands-on tutorial, you'll learn how to create a Jenkins Pipeline that automates the Docker image build process for a Flask application and pushes it to DockerHub—all triggered by your GitHub commits! Whether you're deploying microservices or just want to streamline your container workflow, this video will give you real-world automation practices using Jenkins + Docker + GitHub. 🔧 What You’ll Learn:
✅ How to create a Jenkins Pipeline for your Flask App
✅ Writing a Dockerfile for your Flask app
✅ Setting up Jenkins credentials for DockerHub
✅ Building Docker images inside the Jenkins pipeline
✅ Automating docker push to DockerHub
✅ Using Webhooks (optional) for continuous integration
✅ Debugging common Jenkins-Docker issues 📁 Technologies Used: Jenkins Docker & DockerHub Flask (Python Web Framework) GitHub Pipeline as Code (Jenkinsfile) 💡 Why You Should Watch:
By the end of this tutorial, you’ll have a fully working pipeline that automatically: Checks out your Flask app code from GitHub Builds the Docker image from your Dockerfile Tags it appropriately Pushes the image to your DockerHub repository 🔐 Secure Your Pipeline:
Learn how to store your DockerHub username and access token securely in Jenkins credentials and call them inside your Jenkinsfile to avoid hardcoding secrets. 📢 Subscribe for more CI/CD, DevOps, and Cloud Automation videos. 🔗 Coming soon: How to deploy this Dockerized Flask App to AWS ECS using Jenkins! #Jenkins #DockerHub #FlaskApp #CI_CD #JenkinsPipeline #Docker #Python #DevOps #Automation #GitHub #DockerImage #Jenkinsfile #CloudDeployment #JenkinsTutorial ——————-Online Courses to learn—————————- Blockchain Course – http://bit.ly/2Mmzcv0 Big Data Hadoop Course – http://bit.ly/2MV97PL Java – https://bit.ly/2H6wqXk C++ – https://bit.ly/2q8VWl1 AngularJS – https://bit.ly/2qebsLu Python – https://bit.ly/2Eq0VSt C- https://bit.ly/2HfZ6L8 Android – https://bit.ly/2qaRSAS Linux – https://bit.ly/2IwOuqz AWS Certified Solutions Architect – https://bit.ly/2JrGoAF Modern React with Redux – https://bit.ly/2H6wDtA MySQL – https://bit.ly/2qcF63Z ———————-Follow——————————————— My Website – http://www.codebind.com My Blog – https://goo.gl/Nd2pFn My Facebook Page – https://goo.gl/eLp2cQ Google+ – https://goo.gl/lvC5FX Twitter – https://twitter.com/ProgrammingKnow Pinterest – https://goo.gl/kCInUp Text Case Converter – https://goo.gl/pVpcwL ————————-Stuff I use to make videos ——————- Stuff I use to make videos Windows notebook – http://amzn.to/2zcXPyF Apple MacBook Pro – http://amzn.to/2BTJBZ7 Ubuntu notebook – https://amzn.to/2GE4giY Desktop – http://amzn.to/2zct252 Microphone – http://amzn.to/2zcYbW1 notebook mouse – http://amzn.to/2BVs4Q3 ——————Facebook Links —————————————- http://fb.me/ProgrammingKnowledgeLearning/ http://fb.me/AndroidTutorialsForBeginners http://fb.me/Programmingknowledge http://fb.me/CppProgrammingLanguage http://fb.me/JavaTutorialsAndCode http://fb.me/SQLiteTutorial http://fb.me/UbuntuLinuxTutorials http://fb.me/EasyOnlineConverter

🔤 How to Use f-Strings in Python | Mastering Formatted Strings with Examples Welcome to this beginner-friendly tutorial on using f-strings in Python! In this video, we’ll explore one of the most powerful and modern ways to format strings in Python. f-strings (formatted string literals) were introduced in Python 3.6 and provide a cleaner, more readable, and faster way to embed expressions inside string literals. Whether you're displaying variables, formatting numbers, or creating dynamic messages, f-strings make string handling more intuitive and efficient. 💡 What Are f-Strings in Python? f-strings are a shorthand syntax for formatting strings in Python using curly braces {} to embed expressions directly within string literals prefixed with the letter f or F. 🔧 What You’ll Learn: ✅ How to use basic f-string syntax
✅ Embedding variables directly into strings
✅ Formatting numbers, dates, and floating-point values
✅ Using expressions inside f-strings (e.g., calculations, method calls)
✅ Aligning text and setting width/precision for values
✅ Comparing f-strings with older formatting methods (% and str.format())
✅ Best practices for readability and performance 📌 Example Code Snippets: “`python
name = "Alice"
age = 30
print(f"My name is {name} and I am {age} years old.") # Formatting floats
pi = 3.14159265
print(f"Pi rounded to 2 decimal places: {pi:.2f}") # Using expressions
print(f"In 5 years, {name} will be {age + 5} years old.")
“` 🧠 Why Use f-Strings? * Clean and readable syntax
* Faster execution compared to older formatting methods
* Supports complex expressions and function calls directly within strings
* Makes dynamic string generation easier in real-world applications 🛠️ Prerequisites: * Python 3.6 or higher installed
* Basic understanding of Python variables and data types
* A code editor (VS Code, PyCharm, etc.) or Python shell 📥 Helpful Links & Resources: 👉 Python String Formatting Guide: [https://docs.python.org/3/tutorial/inputoutput.html#fancier-output-formatting](https://docs.python.org/3/tutorial/inputoutput.html#fancier-output-formatting)
👉 Python Format Specification Mini-Language: [https://docs.python.org/3/library/string.html#format-specification-mini-language](https://docs.python.org/3/library/string.html#format-specification-mini-language)
👉 W3Schools Python f-Strings: [https://www.w3schools.com/python/ref\_string\_format.asp](https://www.w3schools.com/python/ref_string_format.asp) 👍 Like, Comment & Subscribe! If you found this video helpful, smash the Like button, leave a Comment with your questions, and Subscribe to the channel for more Python programming tutorials and best practices. 📲 Follow for more coding content, Python tips, and tutorials for beginners and pros! \#Python #fStrings #FormattedStrings #PythonTips #LearnPython #PythonForBeginners #StringFormatting #PythonTutorial #PythonCode #CleanCode #PythonBasics #Python3 #CodeWithPython 🧑‍💻 Ready to supercharge your strings in Python? Let’s get formatting the smart way with f-strings! Would you like a follow-up tutorial comparing f-strings to other string formatting methods in more depth?

📝 How to Work with Lists in Python | Beginner to Intermediate Python Tutorial Welcome to this in-depth Python tutorial! In this video, we’ll explore one of the most powerful and commonly used data structures in Python — the list. Whether you're a Python beginner or looking to sharpen your data handling skills, this tutorial will guide you through the essentials of using lists efficiently. 💡 What is a List in Python? A list in Python is an ordered, mutable (changeable) collection of items that can store elements of different data types — including numbers, strings, and even other lists. Lists are incredibly versatile and are used in everything from simple loops to complex data processing tasks. 🔧 What You’ll Learn in This Video: ✅ How to create a list
✅ Accessing list elements using indexing and slicing
✅ Adding elements using append(), insert(), and extend()
✅ Removing elements using remove(), pop(), and del
✅ Iterating through lists with for loops
✅ Sorting and reversing lists
✅ Using built-in functions like len(), min(), max(), and sum()
✅ List comprehensions for creating new lists in a clean, Pythonic way
✅ Nesting lists and working with multidimensional lists
✅ Best practices for working with lists 📌 Example Snippets: “`python
# Creating and printing a list
fruits = ["apple", "banana", "cherry"]
print(fruits[0]) # Output: apple # Adding and removing elements
fruits.append("orange")
fruits.remove("banana") # List comprehension
squares = [x**2 for x in range(5)]
“` 🧠 Why You Should Learn Lists Understanding how to use lists is fundamental to mastering Python. Lists are used in nearly every Python program — from storing simple user input to handling large datasets. Mastery of list operations will dramatically improve your coding efficiency and problem-solving abilities. 🛠️ Prerequisites: * Python installed on your computer (version 3.x)
* Basic understanding of variables and loops 📥 Resources & Links: 👉 Python Lists Documentation: [https://docs.python.org/3/tutorial/datastructures.html#more-on-lists](https://docs.python.org/3/tutorial/datastructures.html#more-on-lists)
👉 Python List Methods: [https://www.w3schools.com/python/python\_ref\_list.asp](https://www.w3schools.com/python/python_ref_list.asp)
👉 Practice Exercises: [https://www.hackerrank.com/domains/tutorials/10-days-of-python](https://www.hackerrank.com/domains/tutorials/10-days-of-python) 👍 Like, Comment & Subscribe for More Tutorials! If you found this video helpful, don’t forget to hit the Like button, drop your questions in the comments, and Subscribe for more Python tutorials and coding tips! 📲 Stay Connected for More Coding Content and Developer Tips! \#Python #PythonLists #PythonTutorial #LearnPython #PythonForBeginners #ListComprehension #PythonProgramming #PythonTips #CodingWithPython #DataStructures #PythonExamples #PythonDev #SoftwareDevelopment 💬 Ready to take your Python skills to the next level? Dive into lists and start coding smarter today! 🐍 Would you like a follow-up video covering tuples or dictionaries next?

⌨️ **How to Use the input() Function in Python** | Complete Beginner’s Guide with Practical Examples Welcome to this beginner-friendly Python tutorial! In this video, you’ll learn how to use the input() function in Python to receive user input and make your programs interactive. Whether you're just starting with Python or looking to solidify your basics, this tutorial will walk you through the fundamentals of taking input from users and using it in your code. 💡 **What is input() in Python?** The input() function is used to take data entered by the user during the execution of a Python program. It reads input as a string and is essential for interactive programs, such as games, calculators, or command-line utilities. 🔧 **What You’ll Learn in This Tutorial:** ✅ What the input() function does and how it works
✅ How to prompt the user with a message
✅ Storing user input in variables
✅ Converting input from string to int or float
✅ Handling multiple inputs in a single line
✅ Using input in conditional statements and loops
✅ Common input errors and how to handle them
✅ Real-world examples of using input() in simple programs 📌 **Example Usage:** “`python
name = input("Enter your name: ")
print("Hello, " + name + "!") age = int(input("Enter your age: "))
print("You will be", age + 1, "next year.")
“` 🧠 **Why Learn input()?** Mastering input() helps you build real-world applications that interact with users, such as calculators, quizzes, or data entry tools. It’s one of the first steps in making your Python scripts dynamic and user-driven. 🛠️ **Prerequisites:** * Basic knowledge of Python syntax
* Python installed on your computer (any version 3.x)
* A code editor or terminal (e.g., VS Code, PyCharm, or IDLE) 📥 **Useful Resources:** 👉 Official Python input() documentation: [https://docs.python.org/3/library/functions.html#input](https://docs.python.org/3/library/functions.html#input)
👉 Python Tutorial for Beginners: [https://www.python.org/about/gettingstarted/](https://www.python.org/about/gettingstarted/)
👉 Practice problems: [https://www.w3schools.com/python/python\_user\_input.asp](https://www.w3schools.com/python/python_user_input.asp) 👍 **Like, Comment, and Subscribe for more Python tutorials!** If you enjoyed this tutorial or learned something new, please give it a thumbs up, drop your questions or ideas in the comments, and subscribe to the channel for more beginner and intermediate Python tutorials! 📲 Follow us for more coding tips, Python tricks, and programming challenges! \#Python #PythonTutorial #PythonInput #LearnPython #PythonBeginners #InputFunction #PythonProgramming #UserInput #CodeWithPython #PythonBasics #PythonForBeginners #InputInPython #PythonExamples #CodingTutorial 🔔 Let’s start making interactive Python programs using input()! 🧑‍💻 Would you like a follow-up tutorial that covers input validation or error handling in Python?

This massive Kotlin and Android course takes you from the fundamentals to advanced concepts with hands-on practice. Throughout this course for beginners, @programmingwithalex.585 will teach you to build multiple real-world applications, including an impressive Uber clone that demonstrates professional-grade development techniques. The course covers Firestore, SQLite, MVVM, Retrofit, Navigation Component, Jetpack Compose and more. Alex's Python course: https://www.udemy.com/course/learn-python-from-zero-to-expert/?referralCode=42090420F4BB05718386
Alex's Java course: https://www.udemy.com/course/the-complete-java-course/?referralCode=022EBD61D8A97DB18E22
YouTube Channel: https://youtube.com/@programmingwithalex.585?si=nF0-5uS1XAyq9Xg0 – 00:00:00 Introduction to the Course
– 00:20:07 Downloading and Installing IntelliJ IDEA
– 00:27:47 Creating Your First Project
– 00:44:47 Working with Variables and Data Types
– 01:36:58 Operators and Operations
– 01:56:17 Control Flow
– 02:08:11 Comparison and Logical Operators
– 02:38:11 Nullability in Kotlin
– 02:53:57 Functions
– 03:49:16 Loops and Control Keywords
– 04:30:54 Challenges
– 04:37:11 Arrays
– 05:51:50 Object-Oriented Programming
– 06:33:22 Inner Classes
– 06:38:19 Object-Oriented Programming Challenge
– 06:54:16 Inheritance and Interfaces
– 07:28:01 Sealed and Abstract Classes
– 07:49:02 Data Classes
– 08:58:11 Collections
– 09:15:01 Collection Operations
– 09:34:47 Ordering Collections
– 10:16:30 Generics
– 11:17:16 Access Modifiers, Packages, and Imports
– 11:45:29 Exception Handling
– 11:54:55 Lambda Expressions and Higher-Order Functions
– 12:17:23 Scope Functions
– 12:41:21 Threads and Coroutines
– 13:37:31 SQLite Database
– 14:50:11 Android Studio
– 15:18:32 Setting up UI with XML
– 16:00:16 UI Elements
– 16:52:43 Activities and Fragments
– 17:20:20 Layouts
– 18:00:00 Collapsing Toolbar
– 18:16:16 Animations
– 19:07:30 Navigation Drawer, Themes, Styles, and Options Menu
– 20:33:03 Jetpack Compose
– 22:22:57 Navigation Components
– 23:24:38 Data Persistence
– 24:00:00 Firestore Database
– 28:33:05 Passing Data between Fragments
– 29:14:06 Room Database
– 31:37:08 Retrofit
– 33:17:12 Permission Handling
– 34:16:04 Google Maps (Adding, Current Location)
– 43:30:51 Google Maps (Markers, Animation, Multiple Cars)
– 44:44:22 Google Places

🛠️ How to Write a Jenkinsfile Inside GitHub Repository for Automating Pipelines | Pipeline as Code Made Easy! In this step-by-step Jenkins tutorial, you’ll learn how to write a Jenkinsfile and place it inside your GitHub repository to fully automate your CI/CD workflows using Pipeline as Code. Using a Jenkinsfile allows you to version control your entire build process, making your automation more portable, repeatable, and maintainable. This is the industry-standard approach for setting up reliable DevOps pipelines in professional software teams. 🚀 What You’ll Learn:
✅ What is a Jenkinsfile and why use it
✅ How to create and write a Jenkinsfile from scratch
✅ The structure of Declarative and Scripted pipelines
✅ Writing stages like Build, Test, Deploy
✅ Connecting GitHub repo to Jenkins with a Multibranch or Pipeline Job
✅ Automating builds every time you push changes to GitHub
✅ Using credentials securely with the environment block
✅ Best practices for writing clean, modular Jenkinsfiles 📁 Sample Jenkinsfile Included: pipeline { agent any stages { stage('Build') { steps { echo 'Building the project…' } } stage('Test') { steps { echo 'Running tests…' } } stage('Deploy') { steps { echo 'Deploying application…' } } }
}
🔗 After Watching This Video, You Can: Create your own Jenkinsfile and commit it to GitHub Configure Jenkins to auto-detect and run it Build a fully automated pipeline with zero manual intervention Reduce errors by treating your pipeline as code 🧠 Why It Matters: Enables collaboration on CI/CD workflows Makes your build steps transparent and traceable Ensures faster recovery when pipelines break 💬 Drop your Jenkinsfile in the comments if you want feedback or suggestions! 📺 Watch Next: “How to Setup GitHub Webhooks with Jenkins for Auto Triggered Builds” 👍 Like, Comment, Share & Subscribe for more DevOps tutorials! #Jenkinsfile #Jenkins #PipelineAsCode #GitHub #CI_CD #Automation #DevOps #SoftwareEngineering #BuildAutomation #JenkinsPipeline #DeclarativePipeline #JenkinsTutorial #GitHubActions #DevOpsTools ——————-Online Courses to learn—————————- Blockchain Course – http://bit.ly/2Mmzcv0 Big Data Hadoop Course – http://bit.ly/2MV97PL Java – https://bit.ly/2H6wqXk C++ – https://bit.ly/2q8VWl1 AngularJS – https://bit.ly/2qebsLu Python – https://bit.ly/2Eq0VSt C- https://bit.ly/2HfZ6L8 Android – https://bit.ly/2qaRSAS Linux – https://bit.ly/2IwOuqz AWS Certified Solutions Architect – https://bit.ly/2JrGoAF Modern React with Redux – https://bit.ly/2H6wDtA MySQL – https://bit.ly/2qcF63Z ———————-Follow——————————————— My Website – http://www.codebind.com My Blog – https://goo.gl/Nd2pFn My Facebook Page – https://goo.gl/eLp2cQ Google+ – https://goo.gl/lvC5FX Twitter – https://twitter.com/ProgrammingKnow Pinterest – https://goo.gl/kCInUp Text Case Converter – https://goo.gl/pVpcwL ————————-Stuff I use to make videos ——————- Stuff I use to make videos Windows notebook – http://amzn.to/2zcXPyF Apple MacBook Pro – http://amzn.to/2BTJBZ7 Ubuntu notebook – https://amzn.to/2GE4giY Desktop – http://amzn.to/2zct252 Microphone – http://amzn.to/2zcYbW1 notebook mouse – http://amzn.to/2BVs4Q3 ——————Facebook Links —————————————- http://fb.me/ProgrammingKnowledgeLearning/ http://fb.me/AndroidTutorialsForBeginners http://fb.me/Programmingknowledge http://fb.me/CppProgrammingLanguage http://fb.me/JavaTutorialsAndCode http://fb.me/SQLiteTutorial http://fb.me/UbuntuLinuxTutorials http://fb.me/EasyOnlineConverter

🔐 How to Add User Authentication in Django | Complete Guide for Beginners 🔐 Welcome to this comprehensive Django tutorial where we walk you through the essential process of implementing user authentication in your Django web application! Whether you're building a blog, an e-commerce site, or a full-stack web app, understanding how to set up secure user login, logout, and registration features is absolutely critical. 📌 What You’ll Learn in This Tutorial: ✅ Setting up Django's built-in authentication system
✅ Creating login, logout, and signup views
✅ Securing pages with @login\_required decorators
✅ Using Django’s built-in User model
✅ Implementing form validation and error handling
✅ Designing user-friendly templates with authentication context
✅ Redirecting users after login and logout Django comes packed with a powerful authentication system out-of-the-box, and this tutorial will help you harness its full potential using clear, beginner-friendly examples. No need for third-party libraries—we’ll focus on Django’s native tools so you understand the foundations. 🛠️ Prerequisites: * Basic understanding of Django project structure
* Python installed on your system
* A Django project already set up (we’ll work from there)
* A code editor like VS Code or PyCharm 💡 Why Is Authentication Important? Authentication is the gateway to any secure web application. It allows users to have their own private accounts, access protected content, and perform personalized actions. Whether you're developing a basic app or a scalable product, proper user authentication ensures both functionality and security. 📥 Source Code & Resources: You can download the complete source code and access extra resources here:
👉 \[Insert GitHub or resource link] ✨ Pro Tips & Extensions: Once you've nailed the basics in this tutorial, try adding these features next: * Custom user model with additional fields
* Email-based authentication
* Password reset via email
* Social login (Google, GitHub, etc.) with django-allauth 💬 Have Questions? Drop your questions in the comments below. I'm always here to help you debug or understand a tricky concept. Don’t forget to like and subscribe for more weekly Django and Python content! 👍 Like, Share, and Subscribe! 💻 Follow me for more tutorials, code snippets, and developer tips. \#Django #UserAuthentication #DjangoLogin #DjangoSignup #PythonWebDevelopment #DjangoTutorial #LearnDjango #Python #WebDevelopment #DjangoProjects #AuthenticationInDjango #LoginLogoutSignup #DjangoBeginners #PythonForWeb #SecureWebApps #FullStackDevelopment Ready to secure your Django app? Let’s dive in and start coding! 🔧👨‍💻 Would you like a complete authentication code scaffold to follow along with the video?